Recent content by Logan

  1. L

    MODBus Memory Mapping

    Hi Guys, Is it possible that all the discret inputs, coils, input registers and holding registers are in the same memory area I mean in the 40000's. I have a honeywell controller. It's manual says the following (some example)<pre> Cooling_Signal 40121 uint16 Read Only Open_Temp 40122...
  2. L

    MODBUS Wrong Register Value

    Dear All, I have a problem on my MODBUS network. At the moment I just have an ARRAY AR1520U Modbus master to connect the network with my PC and one slave a Siemens RDF302 HVAC panel. I use MODScan32 to monitor. My problem is that I can not read back the right value from the HVAC panel...