Cummins PCC 2.X/3.X (2300/3300) (V3)
This topic is the install guide for the after-market gateway(part# A0009887841) with the GL899-PARTIAL COMM HARNESS (part# A0009887770) and the GL899-PARTIAL RETROFIT HARNESS (part# A0009887772) when utilizing Cummins PCC 2.X PowerCommand® control systems.

PowerCommand Control (PCC) 2.X HMI

2300 Control Board—Modbus RS485 connections at TB15, power and remote start made at TB1

PCC 3.X HMI

3300 Control Board—Modbus RS485 connections at TB15, power and remote start made at TB1
Modbus Communication Settings and Notes
Settings should match values provided in this table.
Address: 2 |
Baud Rate: 9600 |
If different settings are required, please contact Support.
Generac Gateway Side Terminations | Description | Harness Wire Color | Equipment Side Terminations |
|---|---|---|---|
2 | DC+ | A0009887772 Red | TB1-5 |
1 | DC- | A0009887772 Black | Ground Terminal |
8 | Data + | A0009887770 Orange / White | TB15-3 |
9 | Data - | A0009887770 White / Orange | TB15-4 |
10 | Data GND | A0009887770 Blue/ White | TB15-1 |
Harness Relay #1 | COM | A0009887772 Blue | TB1-10 |
N/O | A0009887772 White / Blue | TB1-11 |
Gateway Connection Ports

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.