A: RS485 BUS A. B: RS485 BUS B (note the wiring sequence, first connect the power cable to confirm the module works normally and then connect the communication line). Display Digit:4. Display Color:Red.
A: RS485 BUS A. B: RS485 BUS B (note the wiring sequence, first connect the power cable to confirm the module works normally and then connect the communication line). Display Digit:4. Display Color:Red.
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