"0xVRS" is only for very old projects. It is for example for MPC-03.
"1xVRS" is for firmware versions >=10 (e.g. MPC-17 and also MPC-20).
Here you can find a list of firmware versions from Rexroth:
https://www.boschrexroth.com/ics/ref/media?language=en-GB&ccat_id=10160&remindCcat=on&filterMediatype=2334
When ordering a drive the firmware version is usually called like this: FWA-INDRV*-MPC-20VRS-D5-1-SNC-ML
I don't know why Rexroth chose a different name for ordering and showing it in IndraWorks 🤔
Edit:
"MPC-17V28" means firmware version 17, release 28. When ordering an IndraDrive, the firmware version is relevant, but not the release. Therefore it is called "MPC-17VRS" when ordering it.
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