maxifox
15-07-2008, 03:51 PM
Maybe someone has experience with interfacing a VRV system and external control via RS232? I have Daikin FTXD60JV1B aircondition unit, which I would like to control via serial.
This is how I did that:
Daikin FTX --(HA connector S21)--KRP928BA2S--(F1F2)--CoolMaster1000--(RS232)--External Control System
KRP just provides VRV interface to Coolmaster via F1F2 connector.
The problem is that Coolmaster cannot see any unit on the bus. I checked the CoolMaster (it is OK), even replaced KRP and connectors with others. It should be something simple and I suppose FTX configuration or firmware...
Anyone can advice?
This is how I did that:
Daikin FTX --(HA connector S21)--KRP928BA2S--(F1F2)--CoolMaster1000--(RS232)--External Control System
KRP just provides VRV interface to Coolmaster via F1F2 connector.
The problem is that Coolmaster cannot see any unit on the bus. I checked the CoolMaster (it is OK), even replaced KRP and connectors with others. It should be something simple and I suppose FTX configuration or firmware...
Anyone can advice?