What brand of PLC do you use now?
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What brand of PLC do you use now? There are so many companies. In order to save costs, companies find Siemens’s expensive.
How big is the PLC? Siemens mainly uses winCC which is not cheap either. If there are hundreds or thousands of points, it is better to use a domestic DCS than a Siemens PLC.
Siemens has the most! Omron also has it
If you only consider the use of PLC in terms of price, then domestic PLC will definitely meet your requirements better. The attachment is PLC usage statistics from a PLC forum.
I see that many small factories use Xinjie products.
Siemens, it’s expensive for a reason.
Then don't use PLC, which is quite expensive. Just replace the hand valve and the local meter, and save the cables.