AC500 communication float or double data type with Modbus TCP/IP (ETH_MOD_MAST or other block)
I have a slave device for AC500 PLC communiation with modbus TCP/IP. This slave send to AC500 64bit double data type. I tried function block ETH_MOD_MAST from Ethernet_AC500_V10.lib . But is not working.
I tried 3rd party software Modbuspoll for slave. This is working for it.
Do you have an idea for this problem?
I am using AC500 PM573-eth CPU. Codesys v2.3
Have you an experience this application?
With my personal experience, I never worked with 64bit data communication. But I have done 32 bits as I think both are same only registers count differ
As you are receiving in Modbuspoll then the communication should be fine
Kindly check the IP address and give array as per your data collection in 'DATA'. I hope you have added Modbus TCP/IP Protocol also
Please check it once if you are not getting kindly wait for experts advise