01 Program execution

= **Summary** =

This manual has a comprehensive introduction to the basic functions of WECON PLC Editor and the actual use. This book is completely aimed at zero-based readers, is an essential reference book for entry-level readers to quickly and fully grasp WECON PLC and WECON PLC Editor.

4

5

This book starts from the basic product of WECON PLC and the basic concept and operation of WECON PLC Editor. It combines with a large number of cases and graphic analysis to comprehensively and deeply explain the use of WECON PLC Editor Software, as well as PLC program.

= Precautions =

Before the installation, operation, maintenance and repair of the micro programmable control, please read this manual and other related manuals to ensure correct use. Please use it after you have mastered the operation method, safety information and all

== Design ==

In the event of an abnormality in the external power supply or failure of the programmable controller, to ensure the safe operation of the entire system, be sure to install a safety circuit outside the programmable controller.

16

17

1. Be sure to install an emergency brake circuit, a protection circuit, an interlock circuit for reverse operation, such as an emergency brake circuit, a protection circuit, a forward and reverse circuit, and an interlock circuit for the upper and lower positioning limits to prevent machine damage, in the external circuit of the programmable controller.

18

1. When the programmable controller CPU detects abnormal conditions such as WDT errors through self-diagnosis, all outputs are shut off. In addition, when the programmable controller CPU cannot detect abnormalities in the input/output control part, etc., it cannot control the output. At this time, in order to make the machine operate safely, please design the external circuit and mechanism.

19

1. Due to the failure of the relay and transistor of the output unit, it is impossible to control the state of the output to ON or OFF. In order to ensure the safe operation of the machine, please design external circuits and mechanisms for output signals related to major accidents.

== Installation ==

1. Please use it in the general specification environment described in the manual.

24

25

Do not use in the following places: places with dust, oily smoke, conductive dust, corrosive gas, flammable gas; places exposed to high temperature, condensation, wind and rain; places with vibration or impact. Electric shock, fire, and misoperation can also cause product damage.

26

27

2. When processing screw holes and wiring, do not let iron filings or wire ends fall into the ventilation window of the programmable controller. It may cause fire, malfunction, or misoperation.

28

29

3. Please insert the connecting cable and display module accurately into the specified sockets. Poor contact may cause misoperation.

30

31

(% class="box infomessage" %)

(((

**✎Note:**

* To prevent the temperature from rising, do not install at the bottom, top or vertical direction.Be sure to install it horizontally on the wall as shown on the right.

36

* Please leave a space of more than 50mm between the host and other equipment or structures.Try to avoid high-voltage lines, high-voltage equipment, and power equipment.

)))

== Wiring ==

The signal input and output lines of the programmable controller cannot pass through the same cable.

42

43

In addition, signal input lines and output lines cannot pass through the same pipeline with other power lines and output lines, and cannot be bundled together.

44

45

If implemented according to the above precautions, even if the input and output wiring is as long as 50 to 100m, there is almost no noise problem. But generally for safety, the wiring length should be within 20m.

46

47

(% style="text-align:center" %)

48

[[image:PLC Editor2.01 Program execution.WebHome@1652145475206-244.png||height="179" width="200" class="img-thumbnail"]]

49

50

(% class="box infomessage" %)

(((

**✎Note:**

* The installation and wiring must be performed when the external power supply is cut off. Otherwise, it may cause electric shock or product damage.

55

* After installation and wiring, etc., the terminal cover must be installed before power-on operation to avoid electric shock.

56

)))

57

58

(% class="table-bordered" %)

59

|=(% scope="row" %)(((

[[image:PLC Editor2.01 Program execution.WebHome@1652145267405-613.png||class="img-thumbnail"]]

**Danger**

)))|(((

(% style="text-align:center" %)

68

[[image:PLC Editor2.01 Program execution.WebHome@0-1.png||height="141" width="400" class="img-thumbnail"]]

69

70

It is very dangerous to close the positive and negative contactors at the same time. For loads like this, in addition to the interlock set by the internal program of the programmable controller, the interlock shown above must also be set outside the programmable controller.

71

)))

72

|=(((

73

[[image:PLC Editor2.01 Program execution.WebHome@1652145275238-798.png||height="45" width="50" class="img-thumbnail"]]

74

75

**Attention**

76

)))|Do not connect the empty terminal to the outside, otherwise the product will be damaged.

77

78

Please connect the AC power supply to the dedicated terminal according to the content in the manual.

79

80

If the AC power supply is connected to the DC input/output terminal or the DC power supply terminal, the programmable controller will be burnt out.

81

82

Please do not supply power to the 24+ terminal of the basic unit from the external power supply, and to the empty terminal . Do not wire from the outside, otherwise the product will be damaged.

83

84

Please ground the ground terminal of the basic unit according to the third method. But please do not share the ground with the strong current system.

**Attached**

The programmable controller will continue to work if there is an instantaneous power failure of less than 10ms.

89

90

When the power is cut for a long time or the voltage is low, the programmable controller will stop working and the output will turn OFF, but once the power supply is restored, it will automatically restart.

91

92

== Startup and maintenance ==

93

94

(% class="table-bordered" %)

95

(% class="warning" %)|=**Danger**

96

|(((

97

Please do not touch the terminals when the power is on, otherwise it may cause electric shock or misoperation.

98

99

Please clean and disassemble the terminal after the power is turned off. Performing it while the power is on may cause electric shock.

100

101

Please read the manual thoroughly and fully confirm the safety before proceeding with program changes, forced output, RUN/STOP, etc. during machine operation.

102

103

Operation errors can damage the machine and cause accidents.

104

)))

105

106

(% class="table-bordered" %)

107

(% class="warning" %)|=**Caution**

108

|(((

109

Please do not disassemble or modify, otherwise it may cause malfunction, malfunction, fire.

110

111

※For repair matters, please contact Fuzhou Wecon Electronic Technology Co., Ltd.

112

113

After the power is turned off, perform the installation and disassembly of the extension cables and other connecting cables, otherwise it may cause malfunctions and malfunctions.

114

)))

115

116

== **Maintenance** ==

117

118

Regular inspection: Whether the programmable controller is equipped with consumables with a shorter life.

119

120

For relay output type, if the output relay works abnormally at a high frequency or drives a large-capacity load, you must pay attention to its impact on the service life.

121

122

Check with other equipment, please pay attention to the following points:

123

124

* Whether there is an abnormal increase in the temperature inside the machine due to other heating elements or direct sunlight.

125

* Whether dust or conductive dust has penetrated into the machine.

126

* Whether there are loose wiring and terminals or other abnormalities

= Scan structure =

The scan configuration of the CPU module is as follows.

131

132

(% style="text-align:center" %)

133

[[image:1-1.png||height="455" width="700" class="img-thumbnail"]]

== Initialization ==

The initialization based on the status of the CPU module is as follows.

* **√**: execute

* **×**: not execute

(% class="table-bordered" %)

143

|(% rowspan="2" %)**Processing item**|(% colspan="3" %)**Status of the CPU module**

144

|**When the power is ON**|**STOP**|**When STOP RUN**

145

|Initialization of input and output modules|√|×|×

146

|CPU parameter check|√|×|×

147

|Check of system parameters|√|×|×

148

|Device initialization|√|×|√

149

|Error clear|√|×|√

150

151

== Input and output point refresh ==

152

153

Perform the following before starting program calculation.

154

155

Update the actual input point of the PLC to the input relay X.

156

157

The following is executed after the END instruction is executed.

158

159

Update the PLC output relay Y to the actual output point.

**Key points**

When performing a constant scan, the I/O refresh is performed after the waiting time of the constant scan.

164

165

== Operation of the program ==

166

167

According to the program setting, the execution starts from step 0 of each program to the END instruction. This program is called the main program.

== END processing ==

Perform the following processing.

172

173

* Completion processing of partial instructions

174

* Watchdog timer reset

175

* Communication processing

176

* Setting the value of special relay/special register (when the setting timing is END processing)

= Scan time =

The CPU module repeats the following processing, and the scan time is the total of the following processing and execution time.

181

182

(% style="text-align:center" %)

183

[[image:1-2.png||height="349" width="400" class="img-thumbnail"]]

184

185

The initial scan time indicates the time including this processing.

186

187

== Initial scan time ==

188

189

It is the first scan time of the CPU module in RUN.

190

191

Process as the following way:

192

193

The value stored in SD134 (initial scan time (ms unit)) and SD135 (initial scan time (s unit)).

194

195

= The flow of each procedure =

196

197

When the CPU module changes to the RUN state, the programs are executed in sequence according to the program execution type and execution sequence settings.

198

199

(% style="text-align:center" %)

200

[[image:1652241271896-263.png||height="344" width="500" class="img-thumbnail"]]

**Key points**

When the execution types of the programs are the same, they are executed in the order set in the execution order.

**✎Note:**

When executing instructions that can be completed with multiple cycles (such as OUT T, RAMP, RS, etc.), they should be programmed in the scan program. If it is used in event execution type programs and mid-stage execution type programs, these instructions may not be executed in multiple scan cycles, causing actual results to be different from the ideal results. Therefore, unless events, interrupts and subroutines can be executed in each scan cycle. It is not recommended to use multi-cycle execution instructions in other situations.

209

210

= Types of program execution =

211

212

== Scan execution program ==

213

214

Each scan is executed only once from the next scan of the initial execution type program.

215

216

(% style="text-align:center" %)

217

[[image:1-4.png||height="325" width="700" class="img-thumbnail"]]

218

219

When multiple scan execution type programs are executed, the execution time of the scan execution type program is the time until all scan execution type programs are executed. In addition, before the execution of the scan execution type program is completed, if an interrupt program/event execution type program/subroutine is executed, the execution time will also be included.

220

221

**Creation of multiple scanners**

222

223

"Project Management"→ "Program"→ "Scan"→ Right click to create

224

225

(% style="text-align:center" %)

226

[[image:1-5.png||height="372" width="300" class="img-thumbnail"]]

227

228

* Scan the program name: the program name requires to match case, and the program name cannot use the same name with device name (the device name does not match case).

229

* The input of /%$@&=~~`^<>?:{}[],;!*.~\~\'" is not supported. It cannot exceed 64 characters. The default name is MAINx.

230

* The number of scan programs that can be built is limited to 100.

231

* Each scan program has been END ended, but only the last END instruction is completed to calculate a scan cycle.

232

* The execution sequence runs from top to bottom in the order of creation.

233

234

(% style="text-align:center" %)

235

[[image:1-6.png||class="img-thumbnail"]]

236

237

== Event execution program ==

238

239

It uses the event specified by the user as a condition to trigger the program to start execution.

240

241

(% style="text-align:center" %)

242

[[image:1-7.png||class="img-thumbnail"]]

**Trigger type**

The trigger of event execution type program is as follows.

247

248

**(1) ON event of bit data (TRUE)**

249

250

* After the ON event is specified, if the contact that sets the trigger condition in the ON event is turned ON during the scan program, the ON event program will be executed in the scan program page*1 or before the END instruction is executed.

251

* The ON event program will only be executed once in a single scan cycle.

252

* After the ON event is executed, you can set whether to clear the current value of the output (Y) and timer (T) used in the program.

253

254

*1: Scan program paging: multiple scan programs are established, and each scan program is called a paging. After scan program A is executed, before scan program B is executed, it will be judged whether an event program needs to be executed.

255

256

(% style="text-align:center" %)

257

[[image:1652247397997-492.png||class="img-thumbnail"]]

258

259

When it is the turn of the execution sequence of event execution type program C and Y50 is ON, the program is executed.

260

261

The devices that can be specified are as follows.

262

263

(% class="table-bordered" %)

264

|(% colspan="2" %)**Project**|**Content**

265

|(% rowspan="2" %)Device *1|Bit Device|X, Y, M, SM

266

|Bit specification of word device|D.b

267

268

*1 The indexed device cannot be specified.

**(2) TIME event**

After the program is to RUN state and the specified time has elapsed, event is executed one time when it comes to the execution sequence of the first corresponding program. For the second and subsequent executions, the time is re-measured from the start of the last event execution type program. After the specified time has elapsed, the program is executed repeatedly when it comes to the execution sequence of the first corresponding program. In addition, in the next scan after the corresponding program is executed, the current value of the output (Y) and timer (T) used in the corresponding program can be cleared. It can be used for programs that do not need to respond in a fixed period of time.

273

274

(% style="text-align:center" %)

275

[[image:1652247622598-446.png||class="img-thumbnail"]]

276

277

After the specified time has elapsed, when it comes to the first execution sequence, the event execution type program C is executed.

**Key points**

When set to clear the current value of output and timer, and the scan time is longer than the set value of elapsed time, the current value of output and timer will not be cleared.

282

283

**Operational steps**

**1）New event**

Project management→ Program→ Event → Right click to create.

288

289

(% style="text-align:center" %)

290

[[image:1-10 E.png||class="img-thumbnail"]]

Event program name:

* The program name requires to match case, and the program name with the same name as the device cannot be used (the device name does not match case).

295

* The program name does not support /%$@&=to`^<>?:{}[],;!*.~\~\'" character input.

296

* The length of the program name cannot exceed 64 characters. The default name is EVENTx.

297

298

A maximum of 100 new event programs could be created.

299

300

**2) Execution type**

301

302

There are two ways to configure the event execution type:

303

304

1. Configure when creating a new event program, as shown in the figure above.w

305

1. Project management→ Program→ Parameter → Program parameter→Configuration

306

307

(% style="text-align:center" %)

308

[[image:1-11.png||height="419" width="500" class="img-thumbnail"]]

309

310

Configuration instructions:

311

312

1) Configuration interface

313

314

(% style="text-align:center" %)

315

[[image:1-12.png||height="372" width="300" class="img-thumbnail"]]

316

317

2) Parameter content:

318

319

(% class="table-bordered" %)

320

|(% colspan="2" %)**Project**|**Content**|**Setting range**|**Default**

321

|(% colspan="2" %)Execution type|Select event type|Not set/ON event/TIME event|Not set

322

323

|Whether to clear|When the bit device of the trigger condition set by the ON event is turned OFF, whether to clear the current value of the output (Y) and timer (T) used in the execution program of the ON event in the next cycle.|(((

True

False

)))|False

|Whether to clear|When the TIME event is executed, if the event is not executed in the next scan cycle, select whether to clear the output (Y) used in the TIME event execution program and the current value of the timer (T).|(((

True

False

)))|False

**Key points**

When "ON event" or "TIME event" is specified, if "Clear or not" is set to "Clear", the event program will not be executed in one scan cycle, and all the internal outputs (Y) and current value of timer (T) will all be cleared (except for the cumulative type and subroutine type T). If the time set by the TIME event is less than the scan period, it is equivalent to executing the TIME event every scan period. Even if the clear output is set, the output and timer data in the event program will not be cleared.

338

339

== Interrupt execution program ==

340

341

In the process of executing the scan program, the program that can interrupt the priority execution of the scan program is called an interrupt execution program.

342

343

~1. When an interrupt cause occurs, the interrupt program corresponding to the interrupt pointer number will be executed. However, the execution needs to be set to the interrupt enabled state by the EI instruction.

344

345

(% style="text-align:center" %)

346

[[image:1652249587490-678.png||class="img-thumbnail"]]

347

348

349

2. An interrupt name corresponds to an interrupt program, and the interrupt name cannot be repeated. Each interrupt has its own trigger condition and execution program, and each interrupt program ends with END.

350

351

3. Interrupt has the characteristic of interrupting the original execution program and executing the interrupt first, but it cannot interrupt the interrupt program being executed.

352

353

4. The interrupt program has the concept of priority. The smaller the priority value, the more priority the response. The priority setting range is 0 to 2.

354

355

The actions when an interruption cause occurs are as follows:

356

357

1. Interrupt prohibition (DI) when an interruption cause occurs.

358

359

If the interrupt execution condition is triggered in a program that is forbidden by DI, the interrupt will not be executed. Even if the subsequent program uses the EI instruction to allow interruption, the previously shielded interrupt program will not be executed. Only the interrupt execution condition is triggered again. The interrupt program will be executed.

360

361

2.When multiple interrupt causes occur simultaneously in the interrupt enabled state.

362

363

The interrupt program with higher priority will be executed sequentially. In addition, when multiple interrupts with the same priority occur at the same time, the actions are executed in the order of interrupt priority.

364

365

If three interrupt programs I0, I10, I16 are created, the priority of I0 is 1, the priority of I10 is 0, and the priority of I16 is 1. The execution logic is shown in the figure below: I10 has the smallest priority and is executed first; I0 and I16 have the same priority and are executed in the order of program establishment.

366

367

(% style="text-align:center" %)

368

[[image:1652249553246-688.png||class="img-thumbnail"]]

369

370

3. When an interrupt occurs during the waiting time when performing constant scan.

371

372

Execute the interrupt program for this interrupt.

373

374

4.When other interrupts occur during the execution of the interrupt program.

375

376

In the interrupt program (including the specification when the interrupt occurs in the event execution program), when other interrupts occur, the original interrupt execution program will not be interrupted. After the original interrupt execution program is completed, the new interrupt program is executed. After the execution is completed Then return to the scanning procedure.

377

378

5. During the execution of the interrupt program, when an interrupt cause with a low priority or the same priority occurs.

379

380

The interruption cause that occurred is stored, and after the interrupt program in execution ends, the interrupt program corresponding to the stored interruption cause is executed. Even if the same interruption cause occurs multiple times, the interruption cause is stored only once.

381

382

383

(% style="text-align:center" %)

384

[[image:1652249673420-476.png||class="img-thumbnail"]]

385

386

6. When the same interruption cause occurs during the execution of the interrupt program;

387

388

The interruption cause that occurred is stored, and after the interrupt program in execution ends, the interrupt program corresponding to the stored interruption cause is executed. Even if the same interruption cause occurs multiple times, the interruption cause is stored only once.

389

390

**Interrupt trigger condition classification**

391

392

1. **External input (X) interrupt**

393

394

**~ **1. Description of external input interrupt

395

396

1. The external input interrupt is triggered by the rising or falling edge of the fixed X point input.

397

1. Supports the rising and falling edge interrupts of a total of 8 input points of X0 to X7, and supports a total of 16 external input interrupts.

398

1. The same interrupt trigger condition cannot create multiple interrupt programs.

399

1. External input interrupt and high-speed counter cannot use the same X point.

400

1. You must use EI in the scan program to allow interrupts before the interrupt execution program will be executed.

401

402

2. External input interrupt steps.

403

404

Project management→ Program→ Interrupt→ right click to create

405

406

(% style="text-align:center" %)

407

[[image:1-16.png||class="img-thumbnail"]]

408

409

1. The interrupt program name requires to match case, and the program name with the same name as the device cannot be used (the device name does not match case),

410

1. The interrupt program name does not support the input of /%$@&=to`^<>?:{}[],;!*.~\~\'" characters,

411

1. The length of the interrupt program name cannot exceed 64 characters and cannot be typed. The default name is INTx.

412

413

Click Configure, and select external interrupt for execution type, as shown in the figure below (it can also be configured in "program parameters" in "parameters" in project management):

414

415

(% style="text-align:center" %)

416

[[image:1-17.png||class="img-thumbnail"]]

417

418

(% class="table-bordered" %)

419

|(% colspan="2" %)**Project**|**Content**|**Setting range**|**Default**

420

|(% colspan="2" %)Execution type|Select the type of interrupt|Not set, External input interrupt, Timer event, high-speed counter interrupt|Not set

421

422

|Trigger edge type|Choose to trigger on rising edge or falling edge|(((

Rising edge

Falling edge

)))|Rising edge

|priority|When multiple interrupts arrive at the same time, the order of priority execution, the smallest value is executed first|0 to 2|0

428

|Filter time (0.01us)|(((

429

Set the filter time of X point, the unit is 0.01us.

430

431

Note: X rising edge interrupt and X falling edge interrupt use the same X filter, so after the filter setting is changed in the X rising edge configuration, the X falling edge will also change. If the filter time is set to 1000, you must ensure that the high level and low level of the input signal are maintained for more than 10 us before the interrupt can be triggered.

432

)))|0 to 1700|1

433

434

1. Write interrupt execution program

435

436

(% style="text-align:center" %)

437

[[image:1-18.png||class="img-thumbnail"]]

438

439

Double-click the newly created interrupt program in the project management to start writing the interrupt execution program. As shown in the figure above, a newly created interrupt program is INT_X0_UP, and the trigger condition is configured to execute the interrupt program when the X0 rising edge is configured. If the EI instruction is used in the main program to allow interrupts, all programs in INT_X0_UP will be executed whenever X0 changes from OFF to ON , That is, D0 will increment once.

440

441

(% style="text-align:center" %)

442

[[image:1652250056160-117.png||height="215" width="500" class="img-thumbnail"]]

443

444

**~ 2.Timer interrupt**

445

446

1. Timer interrupt description

447

448

1. Timer interrupt is based on the set time, execute the interrupt program every this time, the minimum time interval can reach 100us.

449

1. Up to 100 timer interrupt execution programs can be created.

450

1. Each timer interrupt program is independent of each other and does not affect each other.

451

1. Each timer interrupt program should be configured with priority. When triggered at the same time, it is executed in the order of priority, but when the priority is the same, it is executed in the order of the established program.

452

1. The interrupt execution program is executed only after EI is used in the scanner to allow the interrupt

453

454

2. Timer interrupt step

455

456

Project managementðProgramðInterruptðRight click to create. Enter the program name. The program name only supports the combination of English letters, numbers, and underscores, and must start with an English letter. The default is INTx. Click Configure and select Timer Interrupt as the execution type, as shown in the figure below (it can also be configured in "program parameters" in "parameters" in project management).

457

458

(% style="text-align:center" %)

459

[[image:1-20.png||class="img-thumbnail"]]

460

461

(% class="table-bordered" %)

462

|(% colspan="2" %)**Project**|**Content**|**Setting range**|**Default**

463

|(% colspan="2" %)Execution type|Select the type of interrupt|Not set/External input interrupt/Timer event/high-speed counter interrupt|Not set

464

465

|priority|When multiple interrupts arrive at the same time, the order of priority execution, the smallest value is executed first|0 to 2|0

466

467

1. Write interrupt execution program

468

469

(% style="text-align:center" %)

470

[[image:1-21.png||class="img-thumbnail"]]

471

472

Double-click the newly created timer interrupt program in the project management to start writing the interrupt execution program. As shown in the figure above, a newly created timer interrupt program is INT0, and the trigger condition is configured to execute the interrupt program every 10ms. If the main program uses EI to enable interrupts, all instruction programs in INT0 will be executed every 10ms, namely D0 It will add 1 to 10ms.

473

474

(% style="text-align:center" %)

475

[[image:1652250294005-455.png||class="img-thumbnail"]]

476

477

**~ 3. High-speed counter interrupt**

478

479

1. Description of high-speed counter interrupt

480

481

1. The high-speed counter interrupt triggers an interrupt condition after the set value of the high-speed counter HSC0 to HSC7 provided by the PLC and executes the interrupt program.

482

1. It can support up to 100 high-speed counter interrupt programs, but the number that can be supported by each channel does not need to be fixed.

483

1. When using the high-speed counter interrupt, project must configure the high-speed counter and use the OUT HSC instruction to enable the corresponding counting channel to count before it can be used (see the high-speed counter description section for the specific configuration method).

484

1. Each high-speed counter interrupt program should be configured with priority. When triggered at the same time, it will be executed in the order of priority. When the priority is the same, it will be executed in the order of channels HSC0-HSC7. When the channel is also the same, it is executed in order according to the creation promise.

485

1. Project must use EI in the scan program to allow interrupts before the interrupt execution program will be executed.

486

487

**✎Note: **Both the HSC channel and the external input interrupt channel must use the PLC input point X. It should be noted that it

488

489

cannot be reused during configuration. For details, please refer to the configuration chapter of the high-speed counter.

490

491

1. high-speed counter interrupt step

492

493

“Project management”ð“Programð“Interrupt”ðRight click to create. Enter the program name. The program name only supports the combination of English letters, numbers, and underscores, and must start with an English letter. The default is INTx. Click Configure, select high-speed interrupt for execution type, as shown in the figure below (it can also be configured in "program parameters" in "parameters" in project management).

494

495

(% style="text-align:center" %)

496

[[image:1-23.png||class="img-thumbnail"]]

497

498

(% class="table-bordered" %)

499

|(% colspan="2" %)**Project**|**Content**|**Setting range**|**Default**

500

|(% colspan="2" %)Execution type|Select the type of interrupt|Not set, External input interrupt, Timer event, high-speed counter interrupt|Not set

501

|(% rowspan="5" %)High count interrupt|Mode|(((

502

Select the type of high-speed counter interrupt:

503

504

(1) High-speed comparison interrupt: The interrupt program is executed after the trigger condition is reached.

505

506

(2) High-speed comparison setting: After reaching the trigger condition, the set contact is set.

507

508

(3) High-speed comparison reset: reset the set contact after reaching the trigger condition.

509

)))|(((

510

High-speed compare interrupt

511

512

High-speed comparison set

513

514

High-speed comparison reset

Not set

)))|(((

High-speed compare interrupt



)))

|Channel|Select the high-speed counter channel used|HSC0 to HSC7|HSC0

523

|Comparison value|Set the comparison value of the high-speed counter. When the high-speed counter value of the set channel passes this value, the trigger condition is reached.|-2147483648 to 2147483647|

524

|Priority|When multiple interrupts arrive at the same time, the order of priority execution, the smallest value is executed first|0 to 2|0

525

|Contact|It is available when selecting high-speed comparison set and high-speed comparison reset. The contact is set or reset immediately after the trigger condition is reached.|Y/M/D.b|

526

527

3. Description of triggering rules

528

529

(% class="table-bordered" %)

530

|**Mode**|**Configuration**|**The current value**|**Action**

531

|(% rowspan="2" %)High-speed compare interrupt (INT0)|(% rowspan="2" %)Comparison value: 10000|9999 → 10000|Execute all programs in interrupt INT0

532

|10001 → 10000|Execute all programs in interrupt INT0

533

|(% rowspan="2" %)High-speed comparison set (INT1)|(% rowspan="2" %)(((

534

Comparison value: -50,000

535

536

Contact: Y10

537

)))|-50001 → -50000|(((

538

Y10 is immediately set and mapped to the actual output (not affected by the scan period)

539

540

The program in INT1 will not be executed

541

)))

542

|-49999 → -50000|(((

543

Y10 is immediately set and mapped to the actual output (not affected by the scan period)

544

545

The program in INT1 will not be executed

546

)))

547

|(% rowspan="2" %)High-speed comparison reset (INT2)|(% rowspan="2" %)(((

548

Comparison value: 400000

549

550

Contact: Y10

551

)))|399999 → 400000|(((

552

Y10 is reset immediately and mapped to the actual output (not affected by the scan period)

553

554

The program in INT2 will not be executed

555

)))

556

|400001 → 400000|(((

557

Y10 is reset immediately and mapped to the actual output (not affected by the scan period)

558

559

The program in INT2 will not be executed

560

)))

561

562

**✎Note: **Both HSC channel and external input interrupt channel need to use the INPUT point X, so it should be noted that it cannot be reused in configuration. For details, please refer to the configuration section of high-speed counter.

563

564

1. Write interrupt execution program

565

566

* New interrupt program

567

568

Create three new interrupt programs under the interrupt of project management, namely HSC0_20000, HSC0_30000, HSC0_40000. Configure the interrupt program in the "program parameters", as shown in the figure below.

569

570

(% style="text-align:center" %)

571

[[image:1-24.png||class="img-thumbnail"]]

572

573

* High-speed counter configuration

574

575

Configure HSC0 for use in the high-speed counter configuration. After selecting the working mode, click the "Check” button. After the correct configuration box pops up, click Enter.

576

577

(% style="text-align:center" %)

578

[[image:1-25.png||class="img-thumbnail"]]

579

580

Call the high-speed counter in the main program and enable interrupts:

581

582

[[image:1-26.png||class="img-thumbnail"]]

Program operation:

Assuming that the High-speed counter channel 0 has been receiving pulses:

587

588

When the count value of HSC0 accumulates from 0 to 20000, all procedures of HSC0_20000 are executed.

589

590

When the count value of HSC0 is accumulated from 20000 to 30000, all procedures of HSC0_30000 are executed.

591

592

When the count value of HSC0 is accumulated from 30000 to 40000, all procedures of HSC0_40000 are executed.

**Mask interrupt**

**~ 1. Mask through application instructions**

597

598

The PLC interrupt is in the shielded state by default when it is powered on, and can only be used after the interrupt is allowed through the EI instruction.

599

600

The interrupt mask instruction DI masks all interrupts without parameters, and masks some priority interrupts with parameters (refer to the program flow instruction DI/EI for details).

601

602

**~ 2. Mask through special registers SM and SD**

603

604

1.External input interrupt mask register

605

606

(% class="table-bordered" %)

607

|(% colspan="4" %)**External input interrupt mask register**

608

|**Special register number**|**Type of interrupt**|**Instruction**|**Defaults**

609

|SM352|X0 rising edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

610

|SM353|X0 falling edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

611

|SM354|X1 rising edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

612

|SM355|X1 falling edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

613

|SM356|X2 rising edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

614

|SM357|X2 falling edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

615

|SM358|X3 rising edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

616

|SM359|X3 falling edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

617

|SM360|X4 rising edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

618

|SM361|X4 falling edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

619

|SM362|X5 rising edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

620

|SM363|X5 falling edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

621

|SM364|X6 rising edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

622

|SM365|X6 falling edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

623

|SM366|X7 rising edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

624

|SM367|X7 falling edge interrupt|ON: Mask interrupt OFF: Enable interrupt|OFF

625

626

2. Timer interrupt mask register

627

628

(% class="table-bordered" %)

629

|(% colspan="4" %)**Timer interrupt mask register**

630

|**Special register number**|**Type of interrupt**|**Instruction**|**Default**

631

|SD350|1st to 16th timer interrupt|(((

632

Each bit can control the mask of an interrupt.

633

634

ON: Mask interrupt OFF: Enable interrupt

635

)))|0

636

|SD351|17th to 32th timer interrupt|(((

637

Each bit can control the mask of an interrupt.

638

639

ON: Mask interrupt OFF: Enable interrupt

640

)))|0

641

|SD352|33th to 48th timer interrupt|(((

642

Each bit can control the mask of an interrupt.

643

644

ON: Mask interrupt OFF: Enable interrupt

645

)))|0

646

|SD353|49th to 64th timer interrupt|(((

647

Each bit can control the mask of an interrupt.

648

649

ON: Mask interrupt OFF: Enable interrupt

650

)))|0

651

|SD354|65th to 80th timer interrupt|(((

652

Each bit can control the mask of an interrupt.

653

654

ON: Mask interrupt OFF: Enable interrupt

655

)))|0

656

|SD355|81st to 96th timer interrupt|(((

657

Each bit can control the mask of an interrupt.

658

659

ON: Mask interrupt OFF: Enable interrupt

660

)))|0

661

|SD356|97th to 100th timer interrupt|(((

662

Each bit can control the mask of an interrupt.

663

664

ON: Mask interrupt OFF: Enable interrupt

665

)))|0

666

667

1. high-speed counter interrupt mask register

668

669

(% class="table-bordered" %)

670

|(% colspan="4" %)**High-speed counter interrupt mask register**

671

|**Special register number**|**Type of interrupt**|**Instruction**|**Default**

672

|SD382|1st to 16th high-speed counter interrupt|(((

673

Each bit can control the mask of an interrupt.

674

675

ON: Mask interrupt OFF: Enable interrupt

676

)))|0

677

|SD383|17th to 32nd high-speed counter interrupt|(((

678

Each bit can control the mask of an interrupt.

679

680

ON: Mask interrupt OFF: Enable interrupt

681

)))|0

682

|SD384|33th to 48th high-speed counter interrupt|(((

683

Each bit can control the mask of an interrupt.

684

685

ON: Mask interrupt OFF: Enable interrupt

686

)))|0

687

|SD385|49th to 64th high-speed counter interrupt|(((

688

Each bit can control the mask of an interrupt.

689

690

ON: Mask interrupt OFF: Enable interrupt

691

)))|0

692

|SD386|65th to 80th high-speed counter interrupt|(((

693

Each bit can control the mask of an interrupt.

694

695

ON: Mask interrupt OFF: Enable interrupt

696

)))|0

697

|SD387|81st to 96th high-speed counter interrupt|(((

698

Each bit can control the mask of an interrupt.

699

700

ON: Mask interrupt OFF: Enable interrupt

701

)))|0

702

|SD388|97th to 100th high-speed counter interrupt|(((

703

Each bit can control the mask of an interrupt.

704

705

ON: Mask interrupt OFF: Enable interrupt

)))|0

== Subroutine ==

During the execution of the scan program, the executed program can be called by the CALL instruction.

711

712

A subroutine is to split a certain module in the main program for the main program to call, which is conducive to the modularization of the program. Such as other high-level language functions, but this function has no parameters and no return value.

713

714

(% style="text-align:center" %)

715

[[image:1652250926997-587.png||class="img-thumbnail"]]

716

717

1. Instructions for calling subroutines

718

719

After a new subroutine is created, the content of the program is not executed. It is executed only when the CALL(P) instruction is used to call the subroutine in the scan, event, and interrupt programs, and the call is executed once. Three new subroutines SUB0, SUB1, SUB2 are created as shown in the figure below. In the main program MAIN, the subprogram can be called by using the CALL(P) subprogram program name.

720

721

Through this programming method, the use of the same logic program for different conditions can reduce the number of Circuit program steps and improve the readability of the Circuit program.

722

723

(% style="text-align:center" %)

724

[[image:1-28.png||class="img-thumbnail"]]

**~ 1.✎Note:**

1. When using the timer (OUT T), note that the output will not be reset when the subroutine is not called, and a specific subroutine register must be used.

729

1. It is not allowed to call recursively between subprograms, that is, call SUB1 in SUB0, and then call SUB0 in SUB1. This is not allowed.

730

1. The subroutine can be nested up to 32 levels. If the level exceeds 32 levels, a serious error will be reported and the Circuit program operation will be forcibly stopped.

731

1. Unlike the LX3V series mainframe, the subroutine in the LX5V series mainframe ends with the END instruction instead of SRET.

732

733

== Positioning instructions ==

~1. Event

1.ON event

If the high-speed pulse instruction is turned on during the ON event, the high-speed pulse instruction will be sent as normal. If the ON contact of the trigger event in the scan period is turned OFF during the pulse sending, select whether to continue sending the pulse or stop the pulse according to the unscanned processing flag bit.

740

741

(% class="table-bordered" %)

742

|**Output shaft**|Y0|Y1|Y2|Y3|Y4|Y5|Y6|Y7

743

|**Not scanned flag bit**|SM899|SM959|SM1019|SM1079|SM1139|SM1199|SM1259|SM1319

744

745

When the flag bit is 0 (continue to send pulse), if the instruction is not scanned in the current scan cycle, continue to send pulses until it stops. At this time, it should be noted that if the trigger event OFF contact turns ON after the pulse is sent, the pulse will be sent again.

746

747

When the flag bit is 1 (stop sending pulses), if the trigger event ON contact turns OFF in a certain scan period, it will decelerate and stop.

2. TIME event

If the high-speed pulse instruction is turned on in the TIME event, the high-speed pulse instruction will be sent as normal. If the instruction is not scanned in a certain scan period during the pulse transmission, select whether to continue sending the pulse or stop the pulse according to the unscanned processing flag bit.

752

753

(% class="table-bordered" %)

754

|**Output shaft**|Y0|Y1|Y2|Y3|Y4|Y5|Y6|Y7

755

|**Not scanned flag bit**|SM899|SM959|SM1019|SM1079|SM1139|SM1199|SM1259|SM1319

756

757

When the flag bit is 0 (continue to send pulse), if the instruction is not scanned in the current scan cycle, the pulse will continue to be sent until it stops. In the TIME event, it is impossible to ensure that the instruction is scanned in every scan cycle, so you should avoid using high-speed pulse instructions in the TIME time, otherwise the pulse will be sent again after the pulse is sent.

758

759

When the flag bit is 1 (stop sending pulses), if the instruction is not scanned in the current scan cycle, it will decelerate and stop. In the TIME event, if the flag bit is set to 1 (stop sending pulses), there will be no pulse sending.

2. Subroutine

If the high-speed pulse instruction is turned on in the subroutine, the high-speed pulse instruction will be sent as normal. If the scanning period is closed during pulse sending, select whether to continue sending or stop the pulse according to the unscanned processing flag.

764

765

(% class="table-bordered" %)

766

|**Output shaft**|Y0|Y1|Y2|Y3|Y4|Y5|Y6|Y7

767

|**Not scanned flag bit**|SM899|SM959|SM1019|SM1079|SM1139|SM1199|SM1259|SM1319

768

769

When the flag bit is 0 (continue to send pulse), if the instruction is not scanned in the current scan cycle, the pulse will continue to be sent until it stops. At this time, it should be noted that if the subroutine is called again after the pulse is sent, the pulse will be sent again.

770

771

When the flag bit is 1 (stop sending pulses), if the subroutine is closed during high-speed pulse sending, the speed will decelerate and stop. If the subroutine is closed before sending the pulse, then no pulse is sent.

3. Interrupt

1. External interrupt

776

777

If the high-speed pulse instruction is enabled in the external interrupt, the high-speed pulse instruction selects whether the pulse continues to be sent or the pulse stops according to the unscanned processing flag bit.

778

779

(% class="table-bordered" %)

780

|**Output shaft**|Y0|Y1|Y2|Y3|Y4|Y5|Y6|Y7

781

|**Not scanned flag bit**|SM899|SM959|SM1019|SM1079|SM1139|SM1199|SM1259|SM1319

782

783

When the flag bit is 0 (continue to send pulse), continue to send high-speed pulses until it stops.

784

785

When the flag bit is 1 (stop sending pulse), the high-speed pulse decelerates and stops.

2. Timer interrupt

If the high-speed pulse instruction is turned on in the timer interruption, the high-speed pulse instruction is sent as normal. If the instruction is not scanned in a certain scan period in the pulse transmission, the pulse continues to be sent or the pulse stops is selected according to the unscanned processing flag.

790

791

(% class="table-bordered" %)

792

|**Output axis**|Y0|Y1|Y2|Y3|Y4|Y5|Y6|Y7

793

|**Not scanned flag bit**|SM899|SM959|SM1019|SM1079|SM1139|SM1199|SM1259|SM1319

794

795

When the flag bit is 0 (continue to send pulse), if the instruction is not scanned in the current scan cycle, continue to send pulses until it stops. In the timer interrupt, it is impossible to ensure that the instruction is scanned in every scan cycle, so it is necessary to avoid using high-speed pulse instructions in the T timer interrupt. Otherwise, after the pulse transmission is completed, the pulse will be sent again.

796

797

When the flag bit is 1 (stop sending pulses), if the instruction is not scanned in the current scan cycle, it will decelerate and stop. In the TIME event, if the flag bit is set to 1 (stop sending pulses), there will be no pulse sending.

798

799

3.High-speed comparison interrupt

800

801

If the high-speed pulse instruction is enabled in the high-speed comparison interrupt, the high-speed pulse instruction selects whether the pulse continues to be sent or the pulse stops according to the unscanned processing flag.

802

803

(% class="table-bordered" %)

804

|**Output axis**|Y0|Y1|Y2|Y3|Y4|Y5|Y6|Y7

805

|**Not scanned flag bit**|SM899|SM959|SM1019|SM1079|SM1139|SM1199|SM1259|SM1319

806

807

When the flag bit is 0 (continue to send pulse), continue to send high-speed pulses until it stops.

808

809