ESXi 6.5 and 800xA 5.1
Related question: https://forum-controlsystems.abb.com/...
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There are exceptions, e.g.:
- 220.127.116.11 was not tested with Server 2019
- VMware 6.5 was delayed because of issues with LSI storage drivers found in e.g. Dell and Intel based chassis.
As 5.1 is no longer an active product and will likely not receive any updates or be part of any further testing (don't take my word on that though).
Your question: can 800xA v5.1 run on other versions than explicitly stated in the "Third Party Software" document?
The official answer: only the officially tested and approved versions will be listed in aforementioned documents.
On a side note, I personally believe any version of 800xA will run ony any VMware version having outspoken support for the Microsoft Windows operating system version in use by 800xA.
There may be smaller issues like PNSM and supervision of the VMware host - at some stage SNMP traps were introduced, only later feature packs of 5.1 got support for traps.
There has been versions of VMware ESX/ESXi where RNRP would clash with the virtual NIC driver; we've seen PSODs (ESX Purple Screen of Death) and instablility (problem with multicast support in vNIC driver). Those problems have often (always?) been due to faulty drivers in VMware and become resolved in later patches or versions of ESXi.
For a smooth ride with less surprises, stay on tested versions. Otherwise, put the drive selector in "D" and hit the accelerator! :-P (with Anti-Collission and Auto-Brake systems engaged).