Generac Nexus Controller Modbus
This topic is the install guide for the after-market gateway (part# G0097460) with the universal harness (part# A0006648426) utilizing the Generac Nexus Controller.
Baud 9600/ Unit address 157/ Parity None/ Stop bits 1
Generac Nexus Controller Front Display
Equipment Connection Details
Generac Gateway Side Terminations | Description | Harness Wire Color | Equipment Side Terminations |
|---|---|---|---|
+ | DC+ | Red | B+ |
- | DC- | Black | B- |
TX1 | RS232 TX | Orange/ White | 388 |
RX1 | RS232 RX | White/ Orange | 387 |
GND | RS232 GND | Green/ White | GND |
Harness Relay #1 | COM | Blue | 2-Wire Start |
N/O | White / Blue |
Gateway Connection Ports
Gateway Right Panel—GPS antenna and harness I/O connections
Gateway Left Panel—Cellular antenna, power, serial communication ports, and SIM card slot
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