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Controlling Daikin VRV central air conditioning system via DTA116A51 board with Modbus protocol.

APP MOD 4 months ago in Devices / Modbus updated 4 months ago 2

Hello everyone,

I am currently trying to connect and control a Daikin VRV central air conditioning system via the DTA116A51 board using the Modbus protocol. However, I am unable to read or write 3 or 8 bits... from the 16-bit Holding Register or Input Register to bOS. Do you have any solutions to this problem? Please help me.

D3NET-Modbus+Communication+adaptor_Function....pdf


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Hey

You should use bit converter. For the fan direction try to use bit decoder start bit 8 and end 10 bit. 

  • Thank you very much. I will try it.