Carrier CCU Controller Bedienungsanleitung Seite 71

Note: The MODBUS RS485/LON gateway can only operate correctly if it is connected to a
Building Technical Management system (not supplied by CARRIER).
15.2 Configuration of the connectors linked to the LON gateway.
The communication parameters for each controller must be set to the following values:
• P700 (Communication mode) = 1 (MODBUS)
• P701 (Communication speed) = 1 (9600 bauds)
• P702 (Parity) = 0 (None)
• P703 (Number of stop bits) = 1 (1 stop bit)
• P704 (Variables in actual format) = 1 (Yes)
• P705 (Bus number) = see information below.
• P706 (Control type = 2 (Remote)
1st Unit
2nd unit
3rd unit
4th unit
5th unit
P705=1
P705=2
P705=3
P705=4
P705=5
EN - 33
EN