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Changes for page 08 Communication

Last modified by Iris on 2025/07/24 15:23
From version 4.10
edited by Stone Wu
on 2022/07/07 15:23
Change comment: There is no comment for this version
To version 4.9
edited by Stone Wu
on 2022/07/07 15:18
Change comment: There is no comment for this version

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... ... @@ -164,25 +164,23 @@
164 164  
165 165  == **Communication example** ==
166 166  
167 +**03 Function Code Read**
167 167  
168 -
169 -**03 Function code read**
170 -
171 171  Read the monitoring volume U0-31 bus voltage, the Modbus register address corresponding to this variable is 7716 (0x1E24)
172 172  
173 173  Request format:
174 174  
175 -|(% rowspan="2" %)**Address**|(% rowspan="2" %)**Function code**|(% colspan="2" %)**Register address**|(% colspan="2" %)**Data**|(% rowspan="2" %)**CRC check code**
176 -|**high byte**|**low byte**|**high byte**|**low byte**
177 -|01|03|1E|24|00|01|C2 29
173 +(% class="table-bordered" %)
174 +|(% style="text-align:center; vertical-align:middle" %)**Address**|(% style="text-align:center; vertical-align:middle" %)**Function code**|(% style="text-align:center; vertical-align:middle" %)**Register address high byte**|(% style="text-align:center; vertical-align:middle" %)**Register address low byte**|(% style="text-align:center; vertical-align:middle" %)**Data high byte**|(% style="text-align:center; vertical-align:middle" %)**Data low byte**|(% style="text-align:center; vertical-align:middle" %)**CRC check code**
175 +|(% style="text-align:center; vertical-align:middle" %)1 byte|(% style="text-align:center; vertical-align:middle" %)06|(% style="text-align:center; vertical-align:middle" %)1 byte|(% style="text-align:center; vertical-align:middle" %)1 byte|(% style="text-align:center; vertical-align:middle" %)1 byte|(% style="text-align:center; vertical-align:middle" %)1 byte|(% style="text-align:center; vertical-align:middle" %)2 bytes
178 178  
179 179  The slave responds normally:
180 180  
181 -|(% rowspan="2" %)**Address**|(% rowspan="2" %)**Function code**|(% rowspan="2" %)**Number of bytes**|(% colspan="2" %)**Data**|(% rowspan="2" %)**CRC high byte**
182 -|**high byte**|**low byte**
183 -|01|03|02|0C|4F|FC B0
179 +(% class="table-bordered" %)
180 +|(% style="text-align:center; vertical-align:middle" %)**Address**|(% style="text-align:center; vertical-align:middle" %)**Function code**|(% style="text-align:center; vertical-align:middle" %)**Number of bytes**|(% style="text-align:center; vertical-align:middle" %)**Data high byte**|(% style="text-align:center; vertical-align:middle" %)**Data low byte**|(% style="text-align:center; vertical-align:middle" %)**CRC low byte**|(% style="text-align:center; vertical-align:middle" %)**CRC high byte**
181 +|(% style="text-align:center; vertical-align:middle" %)01|(% style="text-align:center; vertical-align:middle" %)03|(% style="text-align:center; vertical-align:middle" %)02|(% style="text-align:center; vertical-align:middle" %)0C|(% style="text-align:center; vertical-align:middle" %)26|(% style="text-align:center; vertical-align:middle" %)3C|(% style="text-align:center; vertical-align:middle" %)9E
184 184  
185 -For example: The value read is 0x0C4F, which means that the voltage is 315.1V.
183 +The value read is 0x0C26, which means that the voltage is 311.0V.　
186 186  
187 187  **06 Function Code Write**
188 188