powerflex4m drive communication with slc503

[victorrunPLC]

what cable and what module do I need to have the powerflex4m drive communication with slc503, I now have 22-scm-232 and 22-RJ45CBL-C20 CABLE, Does anyone know an economic solution, thanks

 

[Ken Roach]

The 22-SCM-232 converts between the DF1 Full Duplex protocol on RS-232 wiring and the Modbus RTU protocol on RS-485 wiring.

You can connect the RS-232 side to the Channel 0 serial port of the SLC-5/03 controller, and plug the modular jack on the RS-485 side into any PowerFlex 4-class "DSI" drive serial interface port.

There are hookup diagrams and example programs in the User Manual:

https://literature.rockwellautomation.com/idc/groups/literature/documents/um/22comm-um002_-en-p.pdf

 

[victorrunPLC]

how about the computer side, any cable do I need to connect to the PC, I need to do the programming to control the drive

 

[Ken Roach]

You will need an RS-232 port on your computer.

Almost no modern PCs have these built in. I prefer a USB/RS-232 converter made by Keyspan/Tripp-Lite, the USA-19HS.

It's a few bucks more expensive than the cheap devices on the market, but the utility included with it and the overall stability have saved me thousands of dollars in time and hassle.

It's compatible with most A-B and other RS-232 based protocols and devices except for Data Highway 485 (which needs a special purpose protocol converter, the 1747-UIC).