Modbus communication between Flexy 203 and Siemens S7-200

Ewon Support Ewon Flexy
#1

I have a Siemens PLC S7-200 with modbus configured on port 0 of the PLC. I am trying to establish modbus communication with Flexy 203 MPI port. How do I configure the eWON for modbus?

#2

Hi @Mihir

This link includes some docs that should be helpful for setting up this siemens device

https://websupport.ewon.biz/support/product/s7-200/s7-200

#4

Thanks Tim.

I am using flexy 203 with a MPI port. I don’t have any serial port on the eWON.

I can’t find COM configuration to set parity, stop bits etc. Do I need serial port to configure this settings to establish modbus communication?

Kind regards,

Mhir

#5
#6

Is this the section you’re looking for?

image
image1920×997 102 KB

#7

Hi Tim,

When I click on s7-200, I have different fields for the setting. A screenshot is attached for your reference.

Thanks,

Mihir

eWON_203_MPI
eWON_203_MPI1596×665 67.4 KB

#8

Hi Mahir,

The default one that shows up is just having Topic A - C. But if you have a serial card or a flexy 202 you’ll get the screenshot I have. I think that because you have a Flexy 203 with the MPI installed on the left side, that is why you’re getting this different menu

#10

Topic closed due to inactivity.