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DanielKrok

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  1. Hello everyone! This is my first post here, as i have a problem regarding a program i have to program ASAP. When i'm starting my M91 PLC I'm supposed to enter the value "485" before it is possible to start my process. (I'm filling water into a tank through diffrent transmitters) My question is how i program this into the U90 ladder. Detailed list of my problems: When i start the PLC i'm gonna arrive at a starting screen were i have to type in "485" and then press enter to go to the next stage. I can't start anything before i have entered 485. When i enter 485 i have 1 minute to start my process, so I imagine the 485 code is a MB that i can reset. When i hit my emergency stop i have 2 minutes to start the process, if not it goes into the password protection state again. Anyone know how to do this? Another question: How do i make a 2sec pulse i can connect to a light? I know there is a SB for 1sec pulse, but I need one for 2 seconds. Much love, Daniel
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