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RS485 port specification
Pin number Description
1
2
3
4
5
6
7
8
Transmit/Receive side+
Transmit/Receive-side
24V
24V GND
Communication sequence
The communication sequence is as follows:
Frame start : Frame start is recognized by signal line data transmitted.
Frame completion : Frame completion is recognized by no data during
correspond 4, 5-character time.
Frame 1: Transmit from external controller to inverter.
Frame 2: Indication reflects from inverter to external controller.
External
controller
Inverter
wait time
Frame 2
Frame 1
N100 INSTRUCTION MANUAL
plus
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