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Last modified by Iris on 2026/03/30 11:52
From version 11.1
edited by Iris
on 2026/03/30 11:51
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To version 4.1
edited by Iris
on 2025/09/17 20:31
Change comment: There is no comment for this version

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... ... @@ -31,18 +31,17 @@
31 31  
32 32  This instruction is to complete the PID operation and is used to control the parameters of the closed-loop control system. PID control has a wide range of applications in mechanical equipment, pneumatic equipment, constant pressure water supply and electronic equipment, etc. among them:
33 33  
34 -[[image:11_html_1c6bb88c06ac24cf.png||height="18" width="32"]] is the target value of PID control;
34 +[[image:11_html_1c6bb88c06ac24cf.png]] is the target value of PID control;
35 35  
36 -[[image:11_html_fb5122fb6e3a43d5.png||height="19" width="34"]] is the measured feedback value;
36 +[[image:11_html_fb5122fb6e3a43d5.png]] is the measured feedback value;
37 37  
38 -[[image:11_html_6c3fad4a32a3db43.png||height="19" width="34"]] The starting address of the buffer area for setting parameters required for PID operation and saving intermediate results, occupies a total of 26 variable units in the subsequent addresses, the value range is D0 to D7974, it is best to specify the power failure retention area, which will remain after the power is OFF Set the value, otherwise the buffer area needs to be assigned value before starting the operation for the first time. The function and parameter description of each unit are described in this section;
38 +[[image:11_html_6c3fad4a32a3db43.png]] The starting address of the buffer area for setting parameters required for PID operation and saving intermediate results, occupies a total of 26 variable units in the subsequent addresses, the value range is D0 to D7974, it is best to specify the power failure retention area, which will remain after the power is OFF Set the value, otherwise the buffer area needs to be assigned value before starting the operation for the first time. The function and parameter description of each unit are described in this section;
39 39  
40 -[[image:11_html_b126b1b2673dc1f4.png||height="22" width="39"]] is the storage unit of the PID calculation result. Please designate [[image:11_html_d47cd1f59b766ed3.png||height="24" width="47"]] as a non-battery holding area, otherwise it needs to be initialized and cleared before starting the calculation for the first time.
40 +[[image:11_html_b126b1b2673dc1f4.png]] is the storage unit of the PID calculation result. Please designate [[image:11_html_d47cd1f59b766ed3.png]] as a non-battery holding area, otherwise it needs to be initialized and cleared before starting the calculation for the first time.
41 41  
42 42  **Programming example**
43 43  
44 -(% style="text-align:center" %)
45 -[[image:1758108900843-990.png||height="24" width="396"]]
44 +[[image:1758108900843-990.png]]
46 46  
47 47  The parameter description is as follows:
48 48  
... ... @@ -52,34 +52,34 @@
52 52  
53 53  The D130 unit is used to store the calculated control output value to control the execution of the action.
54 54  
55 -The function and setting method of the parameter value of each unit about starting of [[image:11_html_6c3fad4a32a3db43.png||height="27" width="48"]] are described in the following table:
54 +The function and setting method of the parameter value of each unit about starting of [[image:11_html_6c3fad4a32a3db43.png]] are described in the following table:
56 56  
57 57  |**Unit**|**Features**|**Setting instructions**
58 -|[[image:11_html_6c3fad4a32a3db43.png||height="24" width="43"]]|Sampling time (TS)|The setting range is 1 to 32767 (ms), but it needs to be greater than the PLC program scan period
59 -|[[image:11_html_6c3fad4a32a3db43.png||height="22" width="39"]] +1|Action direction (ACT)|(((
57 +|[[image:11_html_6c3fad4a32a3db43.png]]|Sampling time (TS)|The setting range is 1 to 32767 (ms), but it needs to be greater than the PLC program scan period
58 +|[[image:11_html_6c3fad4a32a3db43.png]] +1|Action direction (ACT)|(((
60 60  bit0: 0 = positive action; 1 = reverse action bit3: 0 = unidirectional; 1 = bidirectional
61 61  
62 62  bit4: 0 = auto-tuning does not work; 1 = auto-tuning is executed, others cannot be used.
63 63  )))
64 -|[[image:11_html_6c3fad4a32a3db43.png||height="24" width="43"]] +2|Maximum ascent rate (DeltaT)|Setting range 0 to 32000 is the threshold of integral increment
65 -|[[image:11_html_6c3fad4a32a3db43.png||height="24" width="43"]] +3|Proportional gain (Kp)|Setting range 0 to 32767, note that this value is enlarged by 256 times, the actual value is Kp/256
66 -|[[image:11_html_6c3fad4a32a3db43.png||height="24" width="43"]] +4|Integral gain (Ki)|Setting range 0 to 32767, Ki=16384Ts/Ti, Ti is the integral time
67 -|[[image:11_html_6c3fad4a32a3db43.png||height="23" width="41"]] +5|Differential gain (Kd)|Setting range 0 to 32767, Kd≈Td/Ts, Td is the derivative time
68 -|[[image:11_html_6c3fad4a32a3db43.png||height="23" width="41"]] +6|Filtering (C0)|Setting range 0 to 1023, integral part filtering
69 -|[[image:11_html_6c3fad4a32a3db43.png||height="24" width="43"]] +7|Output lower limit|(((
63 +|[[image:11_html_6c3fad4a32a3db43.png]] +2|Maximum ascent rate (DeltaT)|Setting range 0 to 32000 is the threshold of integral increment
64 +|[[image:11_html_6c3fad4a32a3db43.png]] +3|Proportional gain (Kp)|Setting range 0 to 32767, note that this value is enlarged by 256 times, the actual value is Kp/256
65 +|[[image:11_html_6c3fad4a32a3db43.png]] +4|Integral gain (Ki)|Setting range 0 to 32767, Ki=16384Ts/Ti, Ti is the integral time
66 +|[[image:11_html_6c3fad4a32a3db43.png]] +5|Differential gain (Kd)|Setting range 0 to 32767, Kd≈Td/Ts, Td is the derivative time
67 +|[[image:11_html_6c3fad4a32a3db43.png]] +6|Filtering (C0)|Setting range 0 to 1023, integral part filtering
68 +|[[image:11_html_6c3fad4a32a3db43.png]] +7|Output lower limit|(((
70 70  Recommended setting range -2000 to 2000
71 71  
72 72  {{id name="OLE_LINK630"/}}When bit3 of S3+1=0, set to 0; When bit3 of S3+1=1, set to -2000;
73 73  )))
74 -|[[image:11_html_6c3fad4a32a3db43.png||height="23" width="41"]] +8|Output upper limit|Recommended setting value 2000
75 -|[[image:11_html_6c3fad4a32a3db43.png||height="25" width="44"]] +9|Reserved|Reserved
73 +|[[image:11_html_6c3fad4a32a3db43.png]] +8|Output upper limit|Recommended setting value 2000
74 +|[[image:11_html_6c3fad4a32a3db43.png]] +9|Reserved|Reserved
76 76  |︙|︙|︙
77 -|[[image:11_html_6c3fad4a32a3db43.png||height="22" width="39"]] +25|Reserved|Reserved
76 +|[[image:11_html_6c3fad4a32a3db43.png]] +25|Reserved|Reserved
78 78  
79 79  **Auto tuning example**
80 80  
81 81  (% style="text-align:center" %)
82 -[[image:11_html_c64303b9c6a47ae9.png||height="583" width="567" class="img-thumbnail"]]
81 +[[image:11_html_c64303b9c6a47ae9.png||class="img-thumbnail"]]
83 83  
84 84  **✎Note:**
85 85  
... ... @@ -158,8 +158,8 @@
158 158  |4D80H|The sampling time is out of range.​(T,,S,,≤0)
159 159  |4D81H|Input filter constant (α) is out of range (α​<0 or α>1023)
160 160  |4D82H|The maximum ascent rate (△//T//) is out of range.(△//T//​<0 or △//T//​>1023)
161 -|4D86H|The sampling time (Ts) is less than the operation cycle.​​​​(T//s//<Scanning cycle)
162 -|4D87H|The proportional gain (K//p//) is out of range.​​​​(K//p//<1 or K//p//>32000)
160 +|4D86H|The sampling time (Ts) is less than the operation cycle.​​​​​​​​​​​(T//s//<Scanning cycle)
161 +|4D87H|The proportional gain (K//p//) is out of range.​​​​(K//p//<1 or K//p//>32000)​​​​​​​
163 163  |4D88H|The integral time constant (Ti) is out of range.(K//i​//<0 or K//i//>3600)
164 164  |4D89H|The differential time constant (T//d//) is out of range.(K//d//<0 or K//d//>1000)
165 165  |4D90H|The upper limit of CCPID output is less than the lower limit.
... ... @@ -316,7 +316,7 @@
316 316  **Content, range and data type**
317 317  
318 318  |**Name**|**Features**|**Bits (bits)**|**Whether pulse type**|**Instruction format**|**Step count**
319 -|CCPID|PID Operation|16|No|CCPID [[image:11_html_253eb1176b58e989.png||height="23" width="44"]] [[image:11_html_80fccb1046bf8776.png||height="25" width="44"]] [[image:11_html_8760537828f7beaf.png||height="26" width="49"]] [[image:11_html_8b4fbd61f8ea9808.png||height="27" width="51"]]|9
318 +|CCPID|PID Operation|16|No|CCPID [[image:11_html_253eb1176b58e989.png]] [[image:11_html_80fccb1046bf8776.png]] [[image:11_html_8760537828f7beaf.png]] [[image:11_html_8b4fbd61f8ea9808.png]]|9
320 320  
321 321  |(% rowspan="2" %)**Instruction**|(% rowspan="2" %)**Parameter**|(% colspan="3" %)**Devices**|**Offset modification**|**Pulse extension**
322 322  |**D**|**R**|**SD**|**[D]**|**XXP**
... ... @@ -358,7 +358,7 @@
358 358  
359 359  |**Unit**|**Features**|**Setting instructions**|**Supplement**
360 360  |[[image:11_html_6dcdd8fc88703a47.jpg]]|Sample time (TS)|The set range is 1 to 32,767 (ms), but greater than PLC program scan cycle.|It is how often the instruction calculates and updates the output value (MV). When TS is less than one scan time, PID instruction is executed with one scan time and alarm 4D86H. When TS ≤ 0, alarm 4D80H and no execution.
361 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+1|Action direction (ACT)|(((
360 +|+1|Action direction (ACT)|(((
362 362  bit0: 0=positive action; 1=reverse action bit2: auto-tuning transition zone switch. 0=not open;1=open
363 363  
364 364  bit3: 0=unidirection; 1=bidirection
... ... @@ -379,12 +379,12 @@
379 379  
380 380  bit4: **✎**When bit4=1 and bit6 and bit7 are not 1, auto-tuning is not executed. **✎**When bit4=0 and one of bit6 and bit7 is 1, auto-tuning is not executed. **✎**When bit4=1 and bit6 and bit7 are both 1, auto-tuning is executed
381 381  )))
382 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+2|Filter coefficient|The first-order inertia filter of feedback amount (0 to 100%) has a range of 0 to100|When the value is greater than or equal to 100, it will be executed as 0, that is, no filtering will be executed;
383 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+3|Proportional gain(Kp)|Set range: 0 to 30,000[%]|Overrun error 4D87H
384 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+4|Integration time (Ti)|Ti is integration time, and the range is 0 to 3,600 (s)|Overrun error 4D88H
385 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+5|Differential time (Td)|Td is derivative time, and the range is 0 to 1,000 (s)|Overrun error 4D89H
386 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+6|Working interval|Operating temperature setting enabled by PID (0 indicates no effect) The range is 0 to 1,000|It is recommended to be greater than 5°C, that is, 50 (precision 0.1°C). If it exceeds the range, the boundary value will be taken.
387 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+7|Output low limit|(((
381 +|+2|Filter coefficient|The first-order inertia filter of feedback amount (0 to 100%) has a range of 0 to100|When the value is greater than or equal to 100, it will be executed as 0, that is, no filtering will be executed;
382 +|+3|Proportional gain(Kp)|Set range: 0 to 30,000[%]|Overrun error 4D87H
383 +|+4|Integration time (Ti)|Ti is integration time, and the range is 0 to 3,600 (s)|Overrun error 4D88H
384 +|+5|Differential time (Td)|Td is derivative time, and the range is 0 to 1,000 (s)|Overrun error 4D89H
385 +|+6|Working interval|Operating temperature setting enabled by PID (0 indicates no effect) The range is 0 to 1,000|It is recommended to be greater than 5°C, that is, 50 (precision 0.1°C). If it exceeds the range, the boundary value will be taken.
386 +|+7|Output low limit|(((
388 388  Range: -10,000 to 10,000.
389 389  
390 390  Recommended setting range: -2,000 or 0 (when S3+1 bit3=0, the lower limit = 0;
... ... @@ -399,7 +399,7 @@
399 399  
400 400  2. During the control process, the lower limit is dynamically adjustable. If the lower limit is greater than or equal to the upper limit, error 4D90H will be reported.
401 401  )))
402 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+8|Output upper limit|(((
401 +|+8|Output upper limit|(((
403 403  Value range: -10,000 to 10,000.
404 404  
405 405  Recommended setting value is 2,000
... ... @@ -412,7 +412,7 @@
412 412  
413 413  2. During the control process, the upper limit is dynamically adjustable. If the lower limit is greater than or equal to the upper limit, error 4D90H will be reported.
414 414  )))
415 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+9|Mode setting|(((
414 +|+9|Mode setting|(((
416 416  0: Overshoot allowed
417 417  
418 418  1: Slight overshoot or no overshoot
... ... @@ -423,36 +423,36 @@
423 423  
424 424  1: Slight overshoot or no overshoot mode (ukd = 300)
425 425  )))
426 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+10|(((
425 +|+10|(((
427 427  Scale factor
428 428  
429 429  (ukp)
430 430  )))|Typically sets value to 100 (default 100) [enabled when S3+9 is set to 2].The range is 1 to 500.|When the value is less than or equal to 0, or greater than 500, the boundary value will be taken.
431 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+11|Integral coefficient (uki)|Typically sets value to 50 (default 50) [enabled when S3+9 is set to 2]. The range is 1 to 300.|When the value is less than or equal to 0, or greater than 300, the boundary value will be taken.
432 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+12|Differential coefficient (ukd)|Typically sets value to 50 (default 100. 300 to 400 can be set when slight overshoot is required) [Enable when S3+9 is set to 2]. The range is 1 to 500.|When the value is less than or equal to 0, or greater than 500, the boundary value will be taken.
433 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+13|Maximum ascent rate (DeltaT)|The range is 0 to 32,000, which is the threshold of integral increment|Overrun error 4D82H
434 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+14|Filtering (C0)|The range is 0 to 1,023, integral part filtering|Overrun error 4D81H
435 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+15|(% rowspan="3" %)reserved for internal control|(% rowspan="3" %)Internal control space occupation|(% rowspan="3" %)
430 +|+11|Integral coefficient (uki)|Typically sets value to 50 (default 50) [enabled when S3+9 is set to 2]. The range is 1 to 300.|When the value is less than or equal to 0, or greater than 300, the boundary value will be taken.
431 +|+12|Differential coefficient (ukd)|Typically sets value to 50 (default 100. 300 to 400 can be set when slight overshoot is required) [Enable when S3+9 is set to 2]. The range is 1 to 500.|When the value is less than or equal to 0, or greater than 500, the boundary value will be taken.
432 +|+13|Maximum ascent rate (DeltaT)|The range is 0 to 32,000, which is the threshold of integral increment|Overrun error 4D82H
433 +|+14|Filtering (C0)|The range is 0 to 1,023, integral part filtering|Overrun error 4D81H
434 +|+15|(% rowspan="3" %)reserved for internal control|(% rowspan="3" %)Internal control space occupation|(% rowspan="3" %)
436 436  |┆
437 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+21
438 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+22|(% rowspan="3" %)used space for self-tuning|(% rowspan="3" %)New self-tuning space for internal use|(% rowspan="3" %)
436 +|+21
437 +|+22|(% rowspan="3" %)used space for self-tuning|(% rowspan="3" %)New self-tuning space for internal use|(% rowspan="3" %)
439 439  |┆
440 -|[[image:11_html_6dcdd8fc88703a47.jpg]]+51
439 +|+51
441 441  
442 442  1) The auto-tuning process occupies the space of S3+22 to S3+51. When the auto-tuning is successful, the adjusted parameters will be written into the space of S3+2 to S3+21.
443 443  
444 -2)[[image:11_html_6dcdd8fc88703a47.jpg]] +2 filter coefficient α: Processing in first-order inertial filter
443 +2) +2 filter coefficient α: Processing in first-order inertial filter
445 445  
446 446  Formula: **T,,now,,=(100-α)×T,,α,,+α×T,,old,,**
447 447  
448 448  T,,α ,,is the currently measured temperature. T,,old ,,is the temperature that participated in the PID calculation last time. T,,now ,,is the temperature used for the current PID calculation. α is the filter coefficient (when α=0, no filtering is performed, and the range of α is 0 to 100.(If there is a temperature with a small overshoot but a long stabilization time, the parameter can be set to 80, and analyze the specific problems in detail)
449 449  
450 -3)[[image:11_html_6dcdd8fc88703a47.jpg]] +6 work range: Twork(example: 170 represents 17℃)
449 +3) +6 work range: Twork(example: 170 represents 17℃)
451 451  
452 452  (% style="text-align:center" %)
453 453  [[image:企业微信截图_17581105436817.png||height="197" width="652"]]
454 454  
455 -4) [[image:11_html_6dcdd8fc88703a47.jpg]]+9 working mode:
454 +4) +9 working mode:
456 456  
457 457  0: Working mode that allows overshoot
458 458  
... ... @@ -460,7 +460,7 @@
460 460  
461 461  2: Custom settings; to achieve by setting [[image:1758111151287-920.png||height="15" width="28"]]+10, [[image:1758111151287-920.png||height="15" width="28"]]+11, [[image:1758111151287-920.png||height="15" width="28"]]+12 three coefficients.
462 462  
463 -5)[[image:11_html_6dcdd8fc88703a47.jpg]] +1 bit2 self-tuning transition zone switch: (upper limit 1℃, low limit 0.5℃)
462 +5) +1 bit2 self-tuning transition zone switch: (upper limit 1℃, low limit 0.5℃)
464 464  
465 465  The transition zone description in forward control:
466 466  
... ... @@ -615,12 +615,189 @@
615 615  (% style="text-align:center" %)
616 616  [[image:11_html_74a7527eace55103.gif||class="img-thumbnail"]]
617 617  
618 -== ==
619 619  
618 +== **LAGCDL Large time-delay temperature control instruction** ==
619 +
620 +**LAGCDL**
621 +
622 +This instruction is used to perform large time-delay system temperature control that changes the output value according to changes in the input.
623 +
624 +-[LAGCDL (s1) (s2)  (s3) (d)]
625 +
626 +**Content, range and data type**
627 +
628 +|**Parameter**|**Content**|**Range**|**Data type**|**Data type (label)**
629 +|(s1)|The device number that stores the target value (SV)|-32767 to 32767|Signed BIN 16 bit|ANY16
630 +|(s2)|The device number that stores the measured value (SV)|-32767 to 32767|Signed BIN 16 bit|ANY16
631 +|(s3)|The device number that stores parameters|1 to 32767|Signed BIN 16 bit|ANY16
632 +|(d)|The device number that stores the output value (SV)|-32767 to 32767|Signed BIN 16 bit|ANY16
633 +
634 +**Device used**
635 +
636 +|(% rowspan="2" %)**Instruction**|(% rowspan="2" %)**Parameter**|(% colspan="8" %)**Devices**|(((
637 +**Offset**
638 +
639 +**modification**
640 +)))|(((
641 +**Pulse**
642 +
643 +**extension**
644 +)))
645 +|**D**|**R**|**SD**|**LC**|**HSC**|**K**|**H**|**E**|**[D]**|**XXP**
646 +|(% rowspan="4" %)LAGCDL|Parameter 1|●|●|●| | | | | | |
647 +|Parameter 2|●|●|●| | | | | | |
648 +|Parameter 3|●|●|●| | | | | | |
649 +|Parameter 4|●|●|●| | | | | | |
650 +
651 +**Features**
652 +
653 +This instruction is to complete large time-delay system control operation, and used to control the parameters of the closed-loop control system.
654 +
655 +[[image:1758111592778-873.png]]is the target value of CCPID SHT control (SV).
656 +
657 +[[image:1758111614838-309.png]]is the measured feedback value (PV).
658 +
659 + ​​​​[[image:1758111642557-547.png]]is the start address of the cache where the parameters required by LAGCDL operation and intermediate results are saved,
660 +
661 +occupying a total of 634 variable units of subsequent addresses. The value range is from D0 to D7974 or from R0 to R35000. It is better to specify power failure retention, and the setting value remains after power supply is off. Otherwise, the cache needs to be assigned value before starting the calculation for the first time. The function and parameter description of each unit are described in this section.
662 +
663 +[[image:1758111693192-390.png]] is the storage unit of the LAGCDL calculation result. Please specify it as a non-battery retentive area, otherwise it needs to be initialized and cleared before the first start of calculation.
664 +
665 +**Programming example**
666 +
667 +[[image:1758111738993-165.png||height="64" width="430"]]
668 +
669 +The parameter description is as follows:
670 +
671 +The target value of LAGCDL adjustment is stored in D1, and D0 is the closed-loop feedback value. Note that D0 and D9 must be of the same dimension, such as both 0.01MPa units, or 1℃ units, etc..
672 +
673 +A total of 634 units of D1000 to D1633 are used to store the set value and process value of LAGCDL operation. These values must be set item by item before the first LAGCDL calculation.
674 +
675 +D100 unit is used to store the calculated control output value to control the execution of the action.
676 +
677 +[[image:1758111862269-781.png]] to [[image:1758111862269-781.png]]+15 is the parameter range that can be set (parameters set when LAGCDL is executed). [[image:1758111862269-781.png]]+28 to [[image:1758111862269-781.png]]+631 is the historical data space for LAGCDL control internal use. [[image:1758111862269-781.png]]+4 to [[image:1758111862269-781.png]]+27 is the parameter space used in the self-tuning process. (This space is multiplexed with the parameter space during control)
678 +
679 +The functions and setting methods of the parameter values of each unit started by [[image:1758111862269-781.png]] are described in the following table:
680 +
681 +
682 +
683 +|(% style="width:108px" %)**Unit**|(% style="width:230px" %)**Function**|**Description**
684 +|(% style="width:108px" %)[[image:1758111862269-781.png]]|(% style="width:230px" %)Sampling time (TS)|Range: 1 to 32767 (ms). It must be longer than PLC program scan cycle.
685 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+1|(% style="width:230px" %)Control flag bit|(((
686 +bit0: 0＝Forward action; 1＝Reverse action
687 +
688 +bit1: Overshoot power limit output enable bit. 0＝no limit; 1＝limited
689 +
690 +Bit2: Reset historical data. 0=reset; 1=no reset. This bit must be 0 before each execution.
691 +
692 +bit4: 0＝Self-tuning does not act; 1＝Perform self-tuning and the others are not available.
693 +
694 +Bit14:Historical data initialization flag bit. When initialization is complete, it is set to 1.
695 +
696 +Bit15: The instruction initializes the flag bit. When initialization is complete, it is set to 1.
697 +)))
698 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+2|(% style="width:230px" %)Output lower limit|Range: -32000 to 32000. Recommended setting range: -2000 or 0.
699 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+3|(% style="width:230px" %)Output upper limit|Range: 0 to 32000. Recommended setting value is 2000. When the upper and lower limits are both 0, the upper limit becomes 2000 and the lower limit becomes 0.
700 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+4|(% style="width:230px" %)Full power output boundary|The suggested value can be obtained by self-tuning, and can also be adjusted according to the actual situation.
701 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+5|(% style="width:230px" %)Half-power output boundary|The suggested value can be obtained by self-tuning, and can also be adjusted according to the actual situation.
702 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+6|(% style="width:230px" %)Stop output boundary|The suggested value can be obtained by self-tuning, and can also be adjusted according to the actual situation.
703 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+7|(% style="width:230px" %)The maximum rate of increase of the controlled system|Given by self-tuning
704 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+8|(% style="width:230px" %)The lagged time of the controlled system|Given by self-tuning. Unit: s
705 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+9|(% style="width:230px" %)The time constant of the controlled system|Given by self-tuning. Unit: s
706 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+10|(% style="width:230px" %)Ideal closed-loop time constant|Given by self-tuning. Unit: s
707 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+11|(% style="width:230px" %)Ideal closed-loop sampling time|Given by self-tuning. This parameter can be adjusted during the control process. Unit: s
708 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+12|(% style="width:230px" %)Maximum temperature difference during setting|Given by self-tuning. (for your reference)
709 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+13|(% style="width:230px" %)The temperature difference between the residual heat and temperature rise|Given by self-tuning. (for your reference)
710 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+14|(% style="width:230px" %)Heating time|Given by self-tuning. (for your reference)
711 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+15|(% style="width:230px" %)Setting time|Given by self-tuning. (for your reference)
712 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+16|(% rowspan="3" style="width:230px" %)Self-tuning use space|(% rowspan="3" %)Reserved for internal use
713 +|(% style="width:108px" %)┇
714 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+27
715 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+28|(% style="width:230px" %)Current temperature difference|Used during control
716 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+29|(% style="width:230px" %)Previous temperature difference|Used during control
717 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+30|(% style="width:230px" %)The 1st operation flag bit|Used during control
718 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+31|(% style="width:230px" %)Number of valid history outputs|Used during control
719 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+32|(% rowspan="3" style="width:230px" %)Historical output data|(% rowspan="3" %)Used during control
720 +|(% style="width:108px" %)┇
721 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+631
722 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+632|(% rowspan="2" style="width:230px" %)Previous sampling time stamp|(% rowspan="2" %)Reserved for internal use
723 +|(% style="width:108px" %)[[image:1758111862269-781.png]]+633
724 +
725 +**Error code**
726 +
727 +|**Error code**|**Content**
728 +|4085H|Read application instruction (S1), (S2), (S3) and (d) output results exceed the range of device.
729 +|4086H|The devices specified in write application instruction (S3) and (d) exceed the range of the corresponding device.
730 +|4D86H|Sampling time (Ts) < operation cycle
731 +|4DA1H|Power limit boundary (s3+4), (s3+5) and (s3+6) exceed the range.
732 +|4DA2H|System parameters (s3+7), (s3+8) and (s3+9) exceed the range.
733 +|4DA3H|Control parameters (s3+10) and (s3+11) exceed the range.
734 +|4DA4H|The output upper limit is smaller than the lower limit
735 +
736 +**Example**
737 +
738 +
739 +(% style="text-align:center" %)
740 +[[image:企业微信截图_17581120459254.png]]
741 +
742 +== **PRUN/Octal digit transmission (16-bit data)** ==
743 +
744 +----
745 +
746 +PRUN(P)
747 +
748 +After processing the device numbers of (s) and (d) with specified digits as octal numbers, transfer the data.
749 +
750 +-[PRUN (s) (d)]
751 +
752 +Content, range and data type
753 +
754 +|=**Parameter**|=**Content**|=**Range**|=**Data type**|=**Data type (label)**|=**Custom variable type**
755 +|(s)|Digit specification*1|-|BIN16 bit|ANY16|~-~-
756 +|(d)|Transfer target device number*1|-|BIN16 bit|ANY16|~-~-
757 +
758 +Device used
759 +
760 +|=(% style="width: 64px;" %)**Instruction**|=(% style="width: 128px;" %)**Parameter**|=(% colspan="24" %)**Devices**|=**Index modification**|=**Pulse expansion**
761 +|(% style="width:64px" %) |(% style="width:128px" %) |**X**|**Y**|**M**|**S**|**SM**|**T(bit)**|**C(bit)**|**LC(bit)**|(% style="width:32px" %)**HSC(bit)**|(% style="width:94px" %)**D.b**|**KnX**|**KnY**|**KnM**|**KnS**|**T**|**C**|**D**|**R**|(% style="width:41px" %)**SD**|(% style="width:42px" %)**LC**|**HSC**|**K**|**H**|**E**|**[D]**|**XXP**
762 +|(% colspan="1" rowspan="2" style="width:64px" %)PRUN|(% style="width:128px" %)Parameter 1| | | | | | | | |(% style="width:32px" %) |(% style="width:94px" %) |●| |●| | | | | |(% style="width:41px" %) |(% style="width:42px" %) | | | | |●|●
763 +|(% style="width:128px" %)Parameter 2| | | | | | | | |(% style="width:32px" %) |(% style="width:94px" %) | |●|●| | | | | |(% style="width:41px" %) |(% style="width:42px" %) | | | | |●|●
764 +
765 +Function
766 +
767 +• Octal digit device→ decimal digit device
768 +
769 +(% style="text-align:center" %)
770 +[[image:1709790843788-781.png]]
771 +
772 +• Decimal digit device → octal digit device
773 +
774 +(% style="text-align:center" %)
775 +[[image:1709790863850-104.png]]
776 +
777 +Error code
778 +
779 +|=**Error code**|=**Content**
780 +|4085H|When the specified device range for reading exceeds the range of the corresponding device
781 +|4086H|When the specified device range for writing exceeds the range of the corresponding device
782 +
783 +Example
784 +
785 +(% style="text-align:center" %)
786 +[[image:1709790902188-165.png]]
787 +
788 +As shown in the above ladder diagram: X0~~X17 takes the value of octal digits and pass it to the devices corresponding to M.
789 +
790 +(% style="text-align:center" %)
791 +[[image:1709790924438-346.png]]
792 +
793 +
620 620  == **TRH/Wet and dry bulb temperature and humidity conversion** ==
621 621  
622 -TRH
796 +----
623 623  
798 +[[image:file:///C:\Users\ADMINI~~1\AppData\Local\Temp\ksohtml13328\wps3.png]]TRH
799 +
624 624  This command completes the conversion of dry bulb temperature, wet bulb temperature and corresponding humidity.
625 625  
626 626  -[TRH (d1) (s) (d2) (n)]
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