JOTA Posted April 23, 2022 Report Share Posted April 23, 2022 Hello Unistream users: This is my issue today. I am using a USP-156-B10 to control a pump station. This pump station has 3 electric motors. Each motor has a softstarter and a meter. A wiring configuration is shown below: I need to read this devices. It is critical to me to read voltage at motor start and at motor stopping, and also to record motor amperes. Motor amperes samples can be read at rate of one sample every minute. But Voltage is critical. This is because this pump station is for agriculture purposes and power quality in rural zones is not so good. This is how I have setup my communications in UNILOGIC: Please note Delay time: This is how each meter is setup: In order to avoid communication crashes I created a cycle that reads each device every second. So, in order to read Meter 1, M1 coil should be on, then M2, M3, M4 and then it starts again. Ladder is as follows: My problem is that I can´t read devices at the time. Most of the time, readings are crashed or takes too long to read. I know I do have readings, and readings are correct. But problem is when I need to read all devices together. Please help, and sorry any misspelling word on my text. Joaquin Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.