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mk3:canbus [2025/04/07 17:03] – [Bus Selection] grnbms_techmk3:canbus [2025/04/07 18:52] (aktuell) grnbms_tech
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 To configure the CAN interface, go to **Connections → CAN Bus** in the sidebar.\\ To configure the CAN interface, go to **Connections → CAN Bus** in the sidebar.\\
 The settings box allows you to configure each available CAN bus individually. The settings box allows you to configure each available CAN bus individually.
 +
 +''You can find the CAN bus wiring guide [[:mk3:wirringcan|here]]''
  
 ==== Bus Selection ==== ==== Bus Selection ====
  
 Use the **dropdown menu** to select the CAN bus you want to configure, e.g. ''CAN1 Inverter'', ''CAN2 CMU'', etc. Use the **dropdown menu** to select the CAN bus you want to configure, e.g. ''CAN1 Inverter'', ''CAN2 CMU'', etc.
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- 
 ==== Baud Rate ==== ==== Baud Rate ====
  
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 To manually check termination, follow these steps: To manually check termination, follow these steps:
  
-  +  **Power off**  all devices on the CAN bus 
- +  Measure the resistance between **CAN High and CAN Low**  using a multimeter 
-**Power off**  all devices on the CAN bus +      * Correct termination should show ~60 Ω (2× 120 Ω in parallel) 
-  +      * 120 Ω indicates one terminator is missing 
- +  Set the BMS's internal resistor accordingly using the dropdown
-Measure the resistance between **CAN High and CAN Low**  using a multimeter +
- +
-      * +
- +
-Correct termination should show ~60 Ω (2× 120 Ω in parallel) +
- +
-      * +
- +
-120 Ω indicates one terminator is missing +
- +
-  +
- +
-Set the BMS's internal resistor accordingly using the dropdown+
  
 ''⚠️ Proper termination is critical for reliable CAN communication. \\ Typically, one 120 Ω resistor is placed at **each end**  of the bus.'' ''⚠️ Proper termination is critical for reliable CAN communication. \\ Typically, one 120 Ω resistor is placed at **each end**  of the bus.''
  
  
mk3/canbus.1744045433.txt.gz · Zuletzt geändert: 2025/04/07 17:03 von grnbms_tech