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Hi, all! I stated to learn PLC UniStream. My program works correctly until recently. But today in online mode, the values of the coils did not change from the incoming signal. It was possible to manually replace the value, but then the algorithm was not executed. Although yesterday everything worked out normally What is the problem? Help me please
Adamkse posted a topic in UniLogic SoftwareHi, I have a PID function block with an embedded PWM function which should turn a heater on and off with a duty cycle. However it is always set on (1). When I monitor the PID UDFB the output from the PWM is 0 but the main ladder has it as a 1. If i drill down further in the PWM UDFB then that is also 0. I don't understand what is happening. Any help would be great.
Hi I have Unitronics Jazz PLC Jz20-J-T40 PLC. When I connect to my PLC and make online changes, like forcing bit that changes my output, PLC shuts down. This bit that I force, turns ON pump on Output, and then I should get confirmation work signal on Input, but instead, it shuts down. When I'm not connected to PLC, and this same situation happens, it works normally, i can also see confirmation work on my PLC screen. But when I'm connected it shuts down on same place. I have 8 pumps that works this way, and same thing happens on all of them. Does my model of Jazz PLC can work in mode that I'm trying to work in (online debugging with I/O changing) or not? Please help. Thankful in advance, Nikola Ljubinkovic
I have a problem with the local tags in my UDFB. They don't change their state. For example, when I try to set a coil that has a local tag, the local tag's value remains unchanged (zero). I am using the latest version of unilogic. What can I be doing wrong? Thanks in advance.