Re:Siemens LOGO PLC turns 25
by ishikawa on Thursday November 11, 2021 @08:41AM
(#29187706)
I understand that for those that have never looked on Operational Technology this looks pretty unimpressive and obsolete. And for a great part it is. For more modern devices and you search for Opto22 and PLCnext. They have not only the controller capability but also can run Linux and deploy containers.
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Except thats not the target field of a Logo. If you need to run Linux and deploy containers your task is way out of the Logos target audience.
Do you know PLCnext?
I know a bit about them, and the target is completely different - PLCnext (and pretty much all of Phoenix Contact's product line) compete with current Siemens S7 generation, not LOGO. In practice, PLCnext is squarely in S7-1500 range and probably the bigger ones only.
That means heavy on Profinet usage, large powerful control units, considerable use of distributed I/O and multi-PLC operation, etc.