Omron NX1 Modbus TCP/IP

[Apple123]

Hi,

 

I'm new to forums, I was wondering if anyone could assist with a Modbus TCP/IP error I am having using a Omron NX1 & client device. I am trying to read Input registers 30190 using the Omron built FB. I am connected to the client just fine but am struggling to read any data back even though the FB says it is complete. I know the data is there as I have connected using Modbus poll. I am thinking maybe it is a data type error to do with the word address.

The client data should be at address 30190 and be a int32 as the picture.

 

Is there anything I am doing incorrectly as I've never used Modbus to connect on Omron before?

 

If there is any more info needed then just ask.

[JYG]

You need to change "CMD_Read.ReadSize" to 2 because you need to read 2 registers to make 32 bits value.