Posted 12 Apr 2022 Hi, I have a project including 32 digital outputs, 8 Pt100 probes, 4 thermocouples, and 4 analog inputs so I have to choose an OMRON PLC. The supplier in my country has only CP2E and CP1E PLCs. Is there a way to connect more than three expansion modules to the PLC? On the website is stated that the maximum number of expansion units is 3, if the answer is no, is there a solution to this problem? Thank you Share this post Link to post Share on other sites
Posted 12 Apr 2022 Maximum 3. BUT if you purchase two PLC's and a serial option board for each one, you can use Serial PLC Links function to transfer data between each PLC. In effect you have two PLC's each with max expansion of 3 units. Share this post Link to post Share on other sites
Posted 12 Apr 2022 You can accomplish the digital IO with the built in IO and 1 card, 2 cards will get you the PT100 IO, you can use Modbus TCs, and the plug in modules will get you the analog IO. 1 person likes this Share this post Link to post Share on other sites
