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Changes for page 07 Communication

Last modified by Devin Chen on 2024/08/19 14:28
From version 7.4
edited by Stone Wu
on 2022/07/28 11:28
Change comment: Update document after refactoring.
To version 14.1
edited by Devin Chen
on 2024/03/22 09:52
Change comment: There is no comment for this version

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1 -XWiki.Stone
1 +XWiki.DevinChen
Content
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1 -= **1 PLC COM2 Modbus RTU** =
1 += **PLC COM2 Modbus RTU** =
2 2  
3 3  == **Protocol Setting (D8126)** ==
4 4  
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6 6  |=WECON PLC Protocol|Using WECON PLC Protocol|01H
7 7  |=MODBUS RTU Master|PLC is slave device|02H
8 8  |=MODBUS ASCII Master|PLC is slave device|03H
9 +|=User-defined Protocol|Using User-defined Protocol|10H
9 9  |=MODBUS RTU Slave|PLC is master device|20H
10 10  |=MODBUS ASCII Slave|PLC is master device|30H
11 11  
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56 56  |S0 ~~ S999|0xE000 ~~ 0xE3E7|57344 ~~ 58343
57 57  |T0 ~~ T256|0xF000 ~~ 0xF100|61440 ~~ 61696
58 58  |C0 ~~ C255|0xF400 ~~ 0xF4FF|62464 ~~ 62719
59 -|X0 ~~ X255|0xF800 ~~ 0xF9FE|63488 ~~ 63998
60 -|Y0 ~~ Y255|0xFC00 ~~ 0xFDFE|64512 ~~ 65022
60 +|X0 ~~ X377|0xF800 ~~ 0xF8FF|63488 ~~ 63743
61 +|Y0 ~~ Y377|0xFC00 ~~ 0xFCFF|64512 ~~ 64767
61 61  |(% colspan="3" %)** PLC Word Address**
62 62  |(% rowspan="2" %)PLC Address|(% colspan="2" %)MODBUS Address
63 63  |Hex|Decimal
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66 66  |C0 ~~ C199|0xF400 ~~ 0xF4C7|62464 ~~ 62663
67 67  |C200 ~~ C255|0xF700 ~~ 0xF7FF|63232 ~~ 63487
68 68  
69 -== **MODBUS function fode introduction** ==
70 +== **MODBUS function code introduction** ==
70 70  
71 71  **Function code 0x01(01): read coil (bit address)**
72 72  
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189 189  
190 190  [[image:1641782240401-942.png||height="161" width="754"]]
191 191  
192 -= (% style="color:inherit; font-family:inherit" %)**2 N:N network**(%%) =
193 += (% style="color:inherit; font-family:inherit" %)**N:N network**(%%) =
193 193  
194 194  **LX3VP COM2 N:N Application**
195 195  
196 196  == **LX3VP COM2 N:N Connection** ==
197 197  
198 -PLC built-in N:N connection protocol provides a effective way to exchange data among multiple PLC (Max. 8 devices). Technically, it only requires the twisted pair RS485 cable to connect with each PLC COM2 (in parallel).
199 +PLC built-in N:N connection protocol provides an effective way to exchange data among multiple PLC (Max. 8 devices). Technically, it only requires the twisted pair RS485 cable to connect with each PLC COM2 (in parallel).
199 199  
200 200  (% style="text-align:center" %)
201 201  [[image:9.Communication example_html_8c43baa1ae891689.jpg||height="142" width="500" class="img-thumbnail"]]
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282 282  |(% rowspan="2" %)**Data bit**|(% style="width:115px" %)7 bit|(% style="width:239px" %)-|-|-|-|-|-|-|-|0
283 283  |(% style="width:115px" %)8 bit|(% style="width:239px" %)-|-|-|-|-|-|-|-|1
284 284  
286 +== **Communication error code (D8211~~D8218)** ==
287 +
288 +|=(% style="width: 195px;" %)**Error code**|=(% style="width: 881px;" %)**Description**
289 +|(% style="width:195px" %)1|(% style="width:881px" %)The monitoring period has elapsed, and the slave station has not respond to requests from the master station yet.
290 +|(% style="width:195px" %)2|(% style="width:881px" %)The other slave stations have responded to requests sent by the master station.
291 +|(% style="width:195px" %)3|(% style="width:881px" %)The count values in the parameter data do not match those responded by the slave stations.
292 +|(% style="width:195px" %)4|(% style="width:881px" %)The response messages from the slave stations are incorrect.
293 +|(% style="width:195px" %)17|(% style="width:881px" %)The monitoring period has elapsed,the master station has not sent a request to the next slave station yet.
294 +|(% style="width:195px" %)20|(% style="width:881px" %)The messages from the master station are incorrect.
295 +|(% style="width:195px" %)33|(% style="width:881px" %)The slave station is unresponsive.
296 +|(% style="width:195px" %)34|(% style="width:881px" %)The other slave stations have responded to requests sent by the master station.
297 +|(% style="width:195px" %)35|(% style="width:881px" %)The count values in the parameter data do not match those responded by the slave stations.
298 +|(% style="width:195px" %)49|(% style="width:881px" %)The slave station received requests from the master station before receiving the parameters.
299 +
285 285  == **Program example** ==
286 286  
287 287  LX3VP COM2 port communication parameters: 9600, 1, 8, NONE. Register block mode: 3
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304 304  * In LX3VP series PLC, only one kind of N:N configuration available. Second mode would be disabled when LX3VP built-in N:N protocol configured.
305 305  )))
306 306  
307 -= (% style="color:inherit; font-family:inherit" %)**3 RS485-BD and ETH-BD communiaction**(%%) =
322 += (% style="color:inherit; font-family:inherit" %)**RS485-BD and ETH-BD communiaction**(%%) =
308 308  
309 309  Please kindly check the link as below.
310 310