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Generac G Panel (Stand Alone) (V3)

This topic is the install guide for after-market Gateway (part# A0009887841) with the GL899-PARTIAL POWER HARNESS (part# A0009887769), GL899-PARTIAL COMM HARNESS (part# A0009887770) and the GL899-COMM ACCESSORIES( part# A0009887771) utilizing the Generac G Panel (stand alone single generator application).

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Modbus Communication Settings and Notes

Settings should correspond to the values in the table provided.

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
DTECH
DT-9000 RS485 port
DTECH
DT-9000 RS232 port
Equipment Side Terminations

2

DC+

A0009887769 Red

NA

NA

TB1-1

1

DC-

A0009887769 Black

NA

NA

TB1-2

8

Data +

A0009887770 Orange / White

A

TXD/RXD+ or D+

*2-RXD

9

Data -

A0009887770 White / Orange

B

TXD/RXD-

or D-

*3-TXD

10

Data GND

A0009887770 Blue/ White

GND

NA

*5-GND

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

The DSE899 does not have an RS232 port, hence we need to use a DTECH DT-9000 RS232 to RS485 converter.

Gateway Connection Ports

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Pin

Connector

Description

1

A

Plant Supply –ve

2

Plant Supply +ve

3

Digital Output A

4

Digital Output B

5

Flexible Sender Common

6

Flexible Sender A

7

Flexible Sender B

1

B

 

RS485 A

2

RS485 B

3

RS485 Screen

4

CAN H

5

CAN L

6

CAN Screen

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

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