Device name not found error for AsHW Library

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1

Hello all,

I am facing an issue at customer where I am getting an error “28850 - Invalid Device” for serial port I want to use in PLC.

Below is the image which shows the Physical configuration, I am communicating variables on serial port RS232. I have added variour device names like ‘IF1’, ‘SU1.IF1’, ‘SL0.IF1’, ‘SL0.SS1.IF1’, ‘SL0.SS0.HW’ but for all of these I am getting the similar error for getting node data.

PLC: X20CP0410
Serial: IF1

So, I wanted to know that how getNodeData function block for AsHW works, and what other configurations I need to look for and how the device name should be given for the same.

Serial parameters like BD, Parity etc is configured Ok.

Hope for the response soon.

IMG-20250411-WA0006
IMG-20250411-WA00061280×720 139 KB

2

‘IF1’ is correct, but this normally used with other libraries like DVFrame or DRV_mbus.

What are you trying to realize with the AsHW library ?

To get information about plugged and configured modules, the AsIODiag library can be used.

3

“getNode” function block will not work on serial interfaces as this interfaces do not have a node switch

4

Yes Noted. I have asked customer to bypass this for serial port and using IF1 for DRV_mbus. Thank you for the solution.

5

Yes, Thank you for the solution.

6

You are very welcome !