Knowledge Base

Generac H Panel

This topic is the install guide for the after-market gateway (part# G0097460) with the universal harness (part# A0006648426) utilizing the Generac H Panel.

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Generac H Panel

Modbus Communication Settings and Notes

Settings should correspond to the values provided in this table.

Address:  100

Baud Rate: 9600

Mode: Modbus Slave

If different settings are required, please contact Support.

Equipment Connection Details

Generac Gateway Side Terminations

Description

Harness Wire Color

Equipment Side Terminations

+

DC+

Red

TB3-13 or TB3-218

-

DC-

Black

TB3-0

TX1

Data Transmit

Orange / White

*2-RXD

RX1

Data Receive

White / Orange

*3-TXD

GND

Data GND

Green / White

*5-GND

Harness Relay #1

COM

Blue

TB1-1

N/O

White / Blue

TB1-2

Terminate communication wires at breakout board provided in harness accessory kit. Use breakout board cover to protect connections and secure to service port.

Some H Panels may have an optional dial-up modem installed. Make sure to turn off the modem before connecting DB9 connection to the RS232 port outside of the H panel.

Gateway Connection Ports

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Gateway Right Panel—GPS antenna and harness I/O connections
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Gateway Left Panel—Cellular antenna, power, serial communication ports, and SIM card slot

Check out our knowledge base and support center for information on any technical questions.