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Last modified by Admin on 2025/03/18 12:51
From version 37.1
edited by Admin
on 2024/12/12 16:14
Change comment: There is no comment for this version
To version 38.1
edited by Admin
on 2024/12/12 16:21
Change comment: There is no comment for this version

Summary

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... ... @@ -157,8 +157,8 @@
157 157  [[image:1733316517741-698.png||data-xwiki-image-style-alignment="center" height="59" width="144"]]
158 158  
159 159  |**Pin**|**Name**|**Description**
160 -|**1**|**CAN2_H**|CAN2 line H for communication with BMS devices
161 -|**2**|**CAN2_L**|CAN2 line L for communication with BMS devices
160 +|**1**|**CAN2_H**|CAN2 line H for communication with other BMS devices
161 +|**2**|**CAN2_L**|CAN2 line L for communication with other BMS devices
162 162  |**3**|**GND**|Ground
163 163  |**4**|**CAN2_5V**|CAN2 power line (5 V, max 400 mA)
164 164  
... ... @@ -171,19 +171,23 @@
171 171  [[image:1733316517741-698.png||data-xwiki-image-style-alignment="center" height="59" width="144"]]
172 172  
173 173  |**Pin**|**Name**|**Description**
174 -|**1**|**CAN3_H**|CAN3 line H for communication with battery modules (for BMS Main 3X)
175 -|**2**|**CAN3_L**|CAN3 line L for communication with battery modules (for BMS Main 3X)
174 +|**1**|**CAN3_H**|CAN3 line H
175 +|**2**|**CAN3_L**|CAN3 line L
176 176  |**3**|**GND**|Ground
177 177  |**4**|**CAN3_5V**|CAN3 power line (5 V, max 400 mA)
178 178  
179 179  (% class="box infomessage" %)
180 180  (((
181 -If the BMS Main 3 device acts as a controller for a battery system consisting of several battery modules connected in parallel, then the parallel battery BMS must be connected to the CAN3 bus.
182 -)))
181 +**Note:**
182 +CAN3 operates differently depending on used firmware:
183 183  
184 +* **BMS Main 3:** CAN3 bus is reserved;
185 +* **BMS Main 3X:** CAN3 bus is used to connect with BMS Main 3 inside parallel strings.
186 +
184 184  Diagram for connecting battery modules to the CAN3 bus:
185 185  
186 -[[image:1733316622613-181.png||data-xwiki-image-style-alignment="center" height="153" width="417"]]
189 +[[image:1733316622613-181.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="417"]]
190 +)))
187 187  
188 188  === X9 – header for BMS Logic (RS-485-2) ===
189 189