Which PLC is good to choose?
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Around 300 points – AI, AO, DI, DO are all available; there is one host computer. Which PLC offers the most reliable pricing? A model with 3-4 functions will suffice. Gentle experts, please use your intelligence and come up with some strategies.
100 per point! Hahaha! Sure!
It depends on the amount of AI AO you have; if there’s a lot of it, then you can only use domestic PLCs. Even for domestic PLCs, this budget is not sufficient.
Using a few more Siemens Smart 200 units will be sufficient
Look at domestic options; there’s nothing else to consider. Don’t forget the UPS
At this price, Taobao should be able to meet your needs!
The advance amount is a bit low; just the hardware alone might cost that much, not to mention debugging
Analog measurements are expensive; it depends on the proportion in your system. If there are many analog signals, an acquisition module with a communication interface can be considered, which is more cost-effective.