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.
I choose an easy parameter. It is the value of the embedded thermo element which measure the room temperature. It is also visible on the panel screen. At this moment this value is 25.0 Celsius. The register which refers to contain the actual temp. value is 31003 register. When I monitor this register it shows the next --> 31003 <1240>.
I can realise this value as 12.40 Celsius, but it is just half of the original ones. How could it happen?
Thank you in advance.
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.
I choose an easy parameter. It is the value of the embedded thermo element which measure the room temperature. It is also visible on the panel screen. At this moment this value is 25.0 Celsius. The register which refers to contain the actual temp. value is 31003 register. When I monitor this register it shows the next --> 31003 <1240>.
I can realise this value as 12.40 Celsius, but it is just half of the original ones. How could it happen?
Thank you in advance.