According to the Technical Data publication for the PowerFlex 4 drive (
http://files.awdm.com/e-files/ra/22/22-td001a-en-p.pdf), the part number 22-SCM-232 includes:
(1) RS232 DF1 -> "DSI" protocol converter module
(1) 1203-SFC RS-232 cable (DB9S on one end, locking low-profile connector on the other)
(1) 22-RJ45CBL-C20 2 meter RS-485 cable with RJ45 ends. This is probably the most generic of all of these cables.
(1) DriveExplorer Lite software CD.
According to everything I've read, the "SCM" serial converter module is both a protocol converter and an electrical signal converter. It appears to convert from DF1 to "DSI" protocol, as well as converting from RS-232 to RS-485.
That makes sense if the Drive Explorer software is using DF1 protocol, not "DSI". If our man
Holeshot intends to use the A-B Drive Explorer software, I think he's going to need the A-B protocol converter box. I don't think an RS-232/RS-485 signal converter is going to do the trick.
If he's planning only on using the Modbus RTU aspects of the "DSI" protocol with some other software or controller, then a generic RS-232/RS-485 converter may work for him.