Posted 19 Apr 2022 (edited) Hi.. I have problem with protocol macro for 4 Ports. I currently use 2 CJ1W-SCU31 (Total 4 Ports) to read from 40 Power Meters, each port consists of 10 power meters. The problem is that each port can't read the power meter at the same time. PLC can read the power meter if only one of the ports is activated. Can 2 CJ1W-SCU31 (Total 4 Ports) read data from the power meter simultaneously with 4 ports? Thanks... Edited 19 Apr 2022 by b16bozz Share this post Link to post Share on other sites