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WECM / Emerald eZA Manual | 13
6.7.2. Software preparation:
Modbus RTU communication tool (provided by EMC Group).
Modbus RTU MulticomV3.0 Parameter Setting:
1. Communication parameter setting:
Step 1: Connect USB to 485 Converter with PC USB port.
Step 2: Select interface: Serial.
Step 3: Communication common port configure (refer to Figure 10).
Step 4: After the above operations are completed, please select “connect” (refer to Figure 11).
Port Name:
Figure 10 - Modbus parameter setting
Figure 11 - Modbus connecting
After completing the above preparations, please turn on the power of the ECM Motor.
Confirm the ECM Motor Modbus slaver address: The default address is 0x55(85).
2. Operation instruction:
Step 1: Input the default address 85 in the Node box.
Step 2: Select “Read/Write register”, input register the initial address and quantity, and click read. Check whether the
read function can be executed successfully. If communicating successes, it shows like Figure 10. If communicating fails, it
shows like Figure 11, and it is required to get the right address of this ECM Motor (Refer to Step 3).
Figure 12 - Modbus communication succeed
Figure 13 - Modbus communication fail
