This topic is the install guide for the after-market gateway (part# G0097460) with the universal harness (part# A0006648426) when utilizing the Kohler Decision-Maker® 550 Controller.
Generac Link-Site Deployment Controller Selection:
Kohler DEC 550-RS485
Modbus Communication Settings and Notes
Settings should match values provided in this table.
|
Protocol: Modbus |
Primary Port RS485: Yes |
|
Modbus Online: Yes |
Address: 1 |
|
Connection Type Single: Yes |
Baud Rate: 9600 |
If different settings are required, please contact Support.
To update Modbus settings local programming mode will need to be by enabled. Then confirm the below settings are configured by:
-
Navigating to Menu 14-Programming Mode
-
Update Programming Mode to Local
-
Navigating to Menu 13–Communications
-
At protocol choose MODBUS
-
Confirm Modbus Online is Yes
-
Confirm connection Type Single is Yes
-
Confirm Primary Port RS485 is Yes
-
Confirm Address is 1
-
Confirm Baud Rate is 9600
Generac Gateway Side Terminations
|
Description
|
Harness Wire Color
|
Equipment Side Terminations
|
|---|---|---|---|
|
+ |
DC+ |
Red |
TB3-4 thru TB3-6 (Wire 42A) |
|
- |
DC- |
Black |
TB3-7 thru TB3-11 (wire 2) |
|
A2 |
Data + |
Blue / White |
P20/+ |
|
B2 |
Data - |
White / Blue |
P20/- |
|
GND |
Data GND |
White / Green |
P20/- |
|
Harness Relay #1 |
COM |
Blue |
TB1-1(wire 3) |
|
N/O |
White / Blue |
TB1-2(Wire 4) |
Gateway Connection Ports
Check out our knowledge base and support center for information on any technical questions.