Profibus to Modbus RTU communication


Thread Starter

Fritz Sachse

On Siemens Variable Speed Drives and Soft Starters, which "interphase" cards are recommended for communication from Profibus DP to Modbus RTU?
You can use our ProLinx 4104-MCM-PDPM module. This module will provide a Modbus port, and a ProfibusDP Master port which can communicate with your drives.

Information on this product can be found at

Please feel free to call me with any questions you may have.

Mark Tracy
Product Support Engineer
ProSoft Technology, Inc.
Some of the drives offer an add-on card to give Modbus serial communications. Otherwise, the idea of the Prolinx bridge would be good. I think I've seen other Modbus to ProfibusDP gateways and devices in the past.