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Changes for page LX3V-4AD

Last modified by Devin Chen on 2024/11/27 15:04
From version 5.1
edited by Jim
on 2023/01/06 15:01
Change comment: There is no comment for this version
To version 10.1
edited by Jim
on 2023/08/07 11:12
Change comment: There is no comment for this version

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... ... @@ -41,11 +41,9 @@
41 41  1. If there is excessive electrical noise, connect the FG frame ground terminal with the grounded terminal on the LX3V-4AD.
42 42  1. Connect the ground terminal on the LX3V-4AD unit with the grounded terminal on the main unit. Use class 3 grounding on the main unit, if available.
43 43  
44 -(% style="text-align:center" %)
45 -[[image:4-20mA 2-wire.png||height="528" width="600" class="img-thumbnail"]]
44 +**Note: when connect a 4-20ma sensor(need +24V working voltage), the wiring is as below:**
46 46  
47 -(% style="text-align:center" %)
48 -[[image:4-20mA 3-wire.png||height="510" width="600" class="img-thumbnail"]]
46 +[[image:企业微信截图_16771315134574.png]]
49 49  
50 50  = **4 Installation** =
51 51  )))
... ... @@ -68,29 +68,29 @@
68 68  
69 69  **Analog Inputs**
70 70  
71 -(% class="table-bordered" %)
72 -|=(% scope="row" style="width: 146px;" %) |=(% style="width: 455px;" %)**Voltage Input**|=(% style="width: 475px;" %)**Current input**
73 -|=(% style="width: 146px;" %)**Items**|(% colspan="2" style="width:930px" %)Either voltage or current input can be selected with your choice of input terminal. Up to four input points can be used at one time.
74 -|=(% style="width: 146px;" %)**Analog input range**|(% style="width:455px" %)(((
69 +(% style="margin-left:auto; margin-right:auto" %)
70 +|= |=**Voltage Input**|=**Current input**
71 +|=**Items**|(% colspan="2" %)Either voltage or current input can be selected with your choice of input terminal. Up to four input points can be used at one time.
72 +|=**Analog input range**|(((
75 75  DC -10V to +10V (input resistance: 200kΩ).
76 76  
77 77  Warning: this unit may be damaged by input voltage in excess of ±15V
78 -)))|(% style="width:475px" %)(((
76 +)))|(((
79 79  DC -20mA to +20mA (input resistance: 250Ω).
80 80  
81 81  Warning: this unit may be damaged by input currents in excess of ±32mA.
82 82  )))
83 -|=(% style="width: 146px;" %)**Digital output**|(% colspan="2" style="width:930px" %)(((
81 +|=**Digital output**|(% colspan="2" %)(((
84 84  12-bit conversion stored in 16-bit 2’s complement form
85 85  
86 -Maximum value:+2047 Minimum value:-2048
84 +Maximum value: +2047 Minimum value: -2048
87 87  )))
88 -|=(% style="width: 146px;" %)**Analog accuracy**|(% style="width:455px" %)±1% (for the range of -10V to +10V)|(% style="width:475px" %)±1% (for the range of -20mA to +20mA)
89 -|=(% style="width: 146px;" %)(((
86 +|=**Analog accuracy**|±1% (for the range of -10V to +10V)|±1% (for the range of -20mA to +20mA)
87 +|=(((
90 90  **Conversion**
91 91  
92 -**speed**
93 -)))|(% colspan="2" style="width:930px" %)15ms/channel (Normal speed), 6ms/channel (High speed)
90 +**time for each channel**
91 +)))|(% colspan="2" %)Tconv ≤10ms (High-speed), 10ms≤Tconv≤20ms (Middle speed), Tconv>20ms (Low speed)
94 94  
95 95  **Analog Inputs continued...**
96 96  
... ... @@ -115,57 +115,72 @@
115 115  
116 116  **Allocation of buffer memories (BFM)**
117 117  
118 -(% class="table-bordered" %)
119 -|=(% scope="row" style="width: 122px;" %)**BFM**|=(% colspan="9" style="width: 954px;" %)**Description**
120 -|=(% style="width: 122px;" %)*#0|(% colspan="9" style="width:954px" %)Channel initialization, default=H0000
121 -|=(% style="width: 122px;" %)*#1|(% style="width:242px" %)Channel 1|(% colspan="8" rowspan="4" style="width:712px" %)(((
116 +(% style="margin-left:auto; margin-right:auto" %)
117 +|=**BFM**|=(% colspan="9" %)**Description**
118 +|*#0|(% colspan="9" %)Channel initialization, default=H0000
119 +|*#1|Channel 1|(% colspan="8" rowspan="4" %)(((
122 122  Contains the number of samples (1 to 4096) to be used for an averaged result.
123 123  
124 124  The default setting is 8-normal speed. High speed operation can be selected with a value of 1.
125 125  )))
126 -|=(% style="width: 122px;" %)*#2|(% style="width:242px" %)Channel 2
127 -|=(% style="width: 122px;" %)*#3|(% style="width:242px" %)Channel 3
128 -|=(% style="width: 122px;" %)*#4|(% style="width:242px" %)Channel 4
129 -|=(% style="width: 122px;" %)#5|(% style="width:242px" %)Channel 1|(% colspan="8" rowspan="4" style="width:712px" %)These buffer memories contain the averaged input values for the number of samples entered for the channel in buffer memories #1 to #4 respectively.
130 -|=(% style="width: 122px;" %)#6|(% style="width:242px" %)Channel 2
131 -|=(% style="width: 122px;" %)#7|(% style="width:242px" %)Channel 3
132 -|=(% style="width: 122px;" %)#8|(% style="width:242px" %)Channel 4
133 -|=(% style="width: 122px;" %)#9|(% style="width:242px" %)Channel 1|(% colspan="8" rowspan="4" style="width:712px" %)These buffer memories contain the present value currently being read by each input channel.
134 -|=(% style="width: 122px;" %)#10|(% style="width:242px" %)Channel 2
135 -|=(% style="width: 122px;" %)#11|(% style="width:242px" %)Channel 3
136 -|=(% style="width: 122px;" %)#12|(% style="width:242px" %)Channel 4
137 -|=(% style="width: 122px;" %)#13-#14|(% colspan="9" style="width:954px" %)Reserved
138 -|=(% rowspan="2" style="width: 122px;" %)#15|(% rowspan="2" style="width:242px" %)Selection of A/D conversion speed please refer to note 2|(% colspan="8" style="width:712px" %)When set to 0, a normal speed is selected of 15m/s.ch (default)
139 -|=(% colspan="8" style="width: 712px;" %)When set to 1, a high speed is selected of 6m/s.ch
140 -|=(% style="width: 122px;" %)#16-#19|(% colspan="9" style="width:954px" %)Reserved
141 -|=(% style="width: 122px;" %)*#20|(% colspan="9" style="width:954px" %)Reset to Defaults and Preset. Default = 0
142 -|=(% style="width: 122px;" %)*#21|(% colspan="9" style="width:954px" %)(((
124 +|*#2|Channel 2
125 +|*#3|Channel 3
126 +|*#4|Channel 4
127 +|#5|Channel 1|(% colspan="8" rowspan="4" %)These buffer memories contain the averaged input values for the number of samples entered for the channel in buffer memories #1 to #4 respectively.
128 +|#6|Channel 2
129 +|#7|Channel 3
130 +|#8|Channel 4
131 +|#9|Channel 1|(% colspan="8" rowspan="4" %)These buffer memories contain the present value currently being read by each input channel.
132 +|#10|Channel 2
133 +|#11|Channel 3
134 +|#12|Channel 4
135 +|#13-#14|(% colspan="9" %)Reserved
136 +|(% rowspan="10" %)#15|(% rowspan="10" %)(((
137 +Selection of A/D conversion speed
138 +
139 +Please refer to note 2
140 +)))|(% colspan="4" %)Set value|(% colspan="4" %)(((
141 +Conversion time
142 +
143 +(Unit: ms/channel)
144 +)))
145 +|(% colspan="4" %)0 (Default)|(% colspan="4" %)15
146 +|(% colspan="4" %)1|(% colspan="4" %)6
147 +|(% colspan="4" %)10|(% colspan="4" %)3
148 +|(% colspan="4" %)11|(% colspan="4" %)4.5
149 +|(% colspan="4" %)12|(% colspan="4" %)7
150 +|(% colspan="4" %)13|(% colspan="4" %)12.5
151 +|(% colspan="4" %)14|(% colspan="4" %)23.5
152 +|(% colspan="4" %)15|(% colspan="4" %)45.5
153 +|(% colspan="4" %)16|(% colspan="4" %)101
154 +|#16-#19|(% colspan="9" %)Reserved
155 +|*#20|(% colspan="9" %)Reset to Defaults and Preset. Default = 0
156 +|*#21|(% colspan="9" %)(((
143 143  Offset, Gain Adjust Prohibit.
144 144  
145 145  Default = (0, 1) Permit
146 146  )))
147 -|=(% rowspan="2" style="width: 122px;" %)*#22|(% rowspan="2" style="width:242px" %)Offset, Gain Adjust|(% style="width:74px" %)b7|(% style="width:80px" %)b6|(% style="width:84px" %)b5|(% style="width:94px" %)b4|(% style="width:100px" %)b3|(% style="width:107px" %)b2|(% style="width:120px" %)b1|b0
148 -|=(% style="width: 74px;" %)G4|(% style="width:80px" %)O4|(% style="width:84px" %)G3|(% style="width:94px" %)O3|(% style="width:100px" %)G2|(% style="width:107px" %)O2|(% style="width:120px" %)G1|O1
149 -|=(% style="width: 122px;" %)*#23|(% colspan="9" style="width:954px" %)Offset Value Default = 0
150 -|=(% style="width: 122px;" %)*#24|(% colspan="9" style="width:954px" %)Gain Value Default = 5,000
151 -|=(% style="width: 122px;" %)#25-#28|(% colspan="9" style="width:954px" %)Reserved
152 -|=(% style="width: 122px;" %)#29|(% colspan="9" style="width:954px" %)Error status
153 -|=(% style="width: 122px;" %)#30|(% colspan="9" style="width:954px" %)(((
161 +|*#22|Offset, Gain Adjust|G4|04|G3|03|G2|01|G1|01
162 +|*#23|(% colspan="9" %)Offset Value    Default = 0
163 +|*#24|(% colspan="9" %)Gain Value      Default = 5,000
164 +|#25-#28|(% colspan="9" %)Reserved
165 +|#29|(% colspan="9" %)Error status
166 +|#30|(% colspan="9" %)(((
154 154  Identification code K2010 (12-bit resolution)
155 155  
156 156  Identification code K2011 (16-bit resolution)
157 157  )))
158 -|=(% style="width: 122px;" %)#31|(% colspan="9" style="width:954px" %)Hardware version
171 +|#31|(% colspan="9" %)Hardware version
159 159  
173 +(% class="box infomessage" %)
174 +(((
175 +**✎Note: **
176 +
160 160  * In buffer memory locations (BFM’s) marked with an “*” data can be written from the PC using the TO command.
161 161  * For buffer memories (BFM’s) without “*”mark, data can be read to the PC using the FROM command.
162 162  * Before reading from the analog special function block, ensure these settings have been sent to the analog special function block. Otherwise, the previous values held in the analog block will be used.
163 163  * Offset (intercept): The analog input value when the digital output becomes 0.
164 164  * Gain (slope): The analog input value when the digital output becomes +1000.
165 -
166 -(% class="box infomessage" %)
167 -(((
168 -**✎Note: **
169 169  )))
170 170  
171 171  **Channel Selection**
... ... @@ -190,14 +190,15 @@
190 190  
191 191  **Analog to Digital Conversion Speed Change**
192 192  
193 -By writing 0 or 1 into BFM #15 of the LX3V-4AD, the speed at which A/D conversion is performed can be changed.
206 +By writing 0, 1 or decimal numbers between 10-16 into BFM#15 of the LX3V-4AD, the time at which A/D conversion is performed can be changed.
194 194  
195 -However the following points should be noted: To maintain a high speed conversion rate, use the FROM/TO commands as seldom as possible.
208 +However, the following points should be noted:
196 196  
197 -**✎Note: **
210 +1. To maintain a high-speed conversion, please use the FROM/TO commands as seldom as possible.
211 +1. When a conversion speed change occurs, BFM #1-#4 are set to their default values immediately after the change. Please be careful if an A/D time conversion will be part of the normal program execution.
212 +1. High-speed time conversion is usually used with BFM#1-#4.
213 +1. BFM#15 is configurated with the corresponding conversion time of 10-16, only supported by software version 20000 or above.
198 198  
199 -* When a conversion speed change is made, BFM #1-#4 are set to their default values immediately after the change. This is regardless of the values they held originally. Bear this in mind if a speed change will be made as part of the normal program execution.
200 -
201 201  **Adjusting Gain and Offset values**
202 202  
203 203  **Formula for Gain/Offset: Digital output= (Analog input-Offset)*Constant/ (Gain-Offset)**
... ... @@ -205,7 +205,15 @@
205 205  * When buffer memory BFM #20 is activated by setting it to K1, all settings within the analog special function block are reset to their default settings. This is a very quick method to erase any undesired gain and offset adjustments.
206 206  * If (b1, b0) of BFM #21 is set to (1, 0), gain and offset adjustments are prohibited to prevent inadvertent changes by the operator. In order to adjust the gain and offset values, bits (b1, b0) must be set to (0, 1). The default is (0, 1).
207 207  * Gain and offset values of BFM #23 and #24 are sent to non-volatile memory gain and offset registers of the specified input channels. Input channels to be adjusted are specified by the appropriate G-O (gain-offset) bits of BFM #22.
222 +* (((
223 +Example:
208 208  
225 +If bits G1 and O1 are set to 1, input channel 1 will be adjusted when BFM #22 is written to by a TO instruction.
226 +)))
227 +* Channels can be adjusted individually or together with the same gain and offset values.
228 +* Gain and offset values in BFM #23 #24 are in units of mV or µA. Due to the resolution of the unit the actual response will be in steps of 5mV or 20µA.
229 +* When gain is less than or equal to offset, error will be adjusted. Gain and offset will not change. Error status will be given at BFM#29 b1. B4-b7 will give a specific channel offset/gain error.
230 +
209 209  Example:
210 210  
211 211  If bits G1 and O1 are set to 1, input channel 1 will be adjusted when BFM #22 is written to by a TO instruction.
... ... @@ -215,17 +215,21 @@
215 215  
216 216  **Status Information BFM #29**
217 217  
218 -(% class="table-bordered" %)
219 -|=(% scope="row" style="width: 209px;" %)**Bit devices of BFM #29**|=(% style="width: 564px;" %)**ON**|=(% style="width: 303px;" %)**OFF**
220 -|=(% style="width: 209px;" %)b0: Error|(% style="width:564px" %)When any of b1 to b4 is ON. If any of b2 to b4 is ON, A/D conversion of all the channels is stopped|(% style="width:303px" %)No error
221 -|=(% style="width: 209px;" %)b1: Offset/gain error|(% style="width:564px" %)Offset/Gain data in EEPROM is corrupted or adjustment error.|(% style="width:303px" %)Offset/Gain data normal
222 -|=(% style="width: 209px;" %)b2: Power source abnormality|(% style="width:564px" %)24V DC power supply failure|(% style="width:303px" %)Power supply normal
223 -|=(% style="width: 209px;" %)b3: Hardware error|(% style="width:564px" %)A/D converter or other hardware failure|(% style="width:303px" %)Hardware normal
224 -|=(% style="width: 209px;" %)b10: Digital range error|(% style="width:564px" %)Digital output value is less than -2048 or more than +2047|(% style="width:303px" %)Averaging is normal. (between 1 and 4096)
225 -|=(% style="width: 209px;" %)b11: Averaging error|(% style="width:564px" %)Number of averaging samples is 4097 or more or 0 or less (default of 8 will be used)|(% style="width:303px" %)Averaging is normal. (between 1 and 4096)
226 -|=(% style="width: 209px;" %)b12: Adjust prohibit|(% style="width:564px" %)Prohibit-(b1, b0) of BFM #21 is set to (1, 0)|(% style="width:303px" %)Permit-(b1, b0) of BFM #21 is set to (0,1)
240 +(% style="margin-left:auto; margin-right:auto" %)
241 +|=**Bit devices of BFM #29**|=**ON**|=**OFF**
242 +|b0: Error|When any of b1 to b4 is ON. If any of b2 to b4 is ON, A/D conversion of all the channels is stopped|No error
243 +|b1: Offset/gain error|Offset/Gain data in EEPROM is corrupted or adjustment error.|Offset/Gain data normal
244 +|b2: Power source abnormality|24V DC power supply failure|Power supply normal
245 +|b3: Hardware error|A/D converter or other hardware failure|Hardware normal
246 +|b4: Channel 1 offset/gain error|(% rowspan="4" %)When channel offset/gain error is modified, the corresponding position is ON.|(% rowspan="4" %)Offset/Gain adjustment normal
247 +|b5: Channel 2 offset/gain error
248 +|b6: Channel 3 offset/gain error
249 +|b7: Channel 4 offset/gain error
250 +|b10: Digital range error|Digital output value is less than -2048 or more than +2047|Averaging is normal. (Between 1 and 4096)
251 +|b11: Averaging error|Number of averaging samples is 4097 or more or 0 or less (default of 8 will be used)|Averaging is normal. (Between 1 and 4096)
252 +|b12: Adjust prohibit|Prohibit-(b1, b0) of BFM #21 is set to (1, 0)|Permit-(b1, b0) of BFM #21 is set to (0,1)
227 227  
228 -**✎Note: **b4 to b7, b9 and b13 to b15 are undefined.
254 +**✎Note: **b8, b9 and b13 to b15 are undefined.
229 229  
230 230  **Identification Code BFM #30**
231 231  
... ... @@ -260,7 +260,7 @@
260 260  
261 261  Offset and gain can be set independently or together. Reasonable offset ranges are -5 to +5V or -20mA to 20mA, and gain values 1V to 15V or 4mA to 32mA. Gain and offset can be adjusted by software in the LX3V main unit (please refer to program example 2).
262 262  
263 -* Bit device’s b1, b2 of the gain/offset BFM #21 should be set to 0, 1 to allow adjustment.
289 +* Bit device’s b1, b0 of the gain/offset BFM #21 should be set to 0, 1 to allow adjustment.
264 264  * Once adjustment is complete these bit devices should be set to 1, 0 to prohibit any further changes.
265 265  * Channel initialization (BFM #0) should be set to the nearest range, i. e. voltage/current etc.
266 266  
... ... @@ -268,19 +268,20 @@
268 268  
269 269  **Basic program**
270 270  
271 -In the following example channels CH1 and CH2 are used as voltage inputs. The LX3V-4AD block is connected at the position of special function block No.0. Averaging is set at 4 and data registers D0 and D1 of the PC receive the averaged digital data.
297 +In the following example channels CH1 and CH2 are used as voltage inputs. The LX3V-4AD block is connected at the position of special function block No.0. Averaging is set at 4 and data registers D0 and D1 of the PC receive the averaged digital data. The FROM code for the special function block at position “0" is read from BFM #30 of that block and stored at D4 in the main unit. CMP is compared to check the block is a LX3V-4AD, if OK M1 is turned ON.
272 272  
273 -(% style="text-align:center" %)
274 -[[image:LX3V-4AD_html_e3a9b9608260f138.png||height="297" width="600" class="img-thumbnail"]]
299 +[[image:LX3V-4AD_html_e3a9b9608260f138.png||height="297" style="float:left" width="600" class="img-thumbnail"]]
275 275  
276 276  **✎Note: **
277 277  
278 -1. The FROM code for the special function block at position “0" is read from BFM #30 of that block and stored at D4 in the main unit. CMP is compared to check the block is a LX3V-4AD, if OK M1 is turned ON.
279 279  1. TO code: The analog input channels (CH1, CH2) are setup by writing H3300 to BFM #0 of the LX3V-4AD
280 280  1. The number of averaged samples for CH1 and CH2 is set to 4 by writing 4 to BFM #1 and #2 respectively.
281 281  1. The operational status of the LX3V-4AD is read from BFM #29 and output as bit devices at the LX3V main unit. If there are no errors in the operation of the LX3V-4AD, then the averaged data BFM’s are read.
282 282  1. In the case of this example BFM #5 and #6 are read into the LX3V main unit and stored at D0 and D1. These devices contain the averaged data for CH1 and CH2 respectively.
283 283  
308 +
309 +
310 +
284 284  **Using gain and offset in a program**
285 285  
286 286  The gain and offset of the LX3V-4AD can be adjusted using push-button switches on the input terminal of the PC. It can also be adjusted using software settings sent from the PC.
... ... @@ -309,8 +309,18 @@
309 309  Adjustment ends.
310 310  
311 311  (K2)-> BFM#21. BFM#21 gain/offset adjust prohibit
339 +
340 +**High-speed conversion by changing A/D conversion time in a program**
341 +
342 +[[image:/bin/download/Expansions/1%20Module/Analog/LX3V-4AD/WebHome/6.3-%E5%9B%BE%E7%89%871.png?rev=1.1||alt="6.3-图片1.png"]][[image:/bin/download/Expansions/1%20Module/Analog/LX3V-4AD/WebHome/6.3-%E5%9B%BE%E7%89%871.png?rev=1.1||alt="6.3-图片1.png"]]**[[image:6.3-图片1.png]]**
312 312  )))
313 313  
345 +Writing K10 to BFM#15 and set conversion time of all channels as 3ms.
346 +
347 +Writing 1 to BFM#1 and set Channel 1 sample count to 1 to Channel 1 high-speed conversion.
348 +
349 += =
350 +
314 314  = **7 Diagnostics** =
315 315  
316 316  **Preliminary checks**
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