The Plc Kid
Member
Guys
I am modifying a program and I have run into a snag. I am working with a slc 5/04 processor and I programmed the attached logic. The problem I am having is that when one of the high level switches is active/on and it triggers my high level alarm active bit B3:0/6 and we wish to silence the alarm it does not seem to work.
When I press the I:4/7 silence Pb then the alarm ack coil B3:5/15 should have power flow and should seal itself in if my thinking is right. So when I release the silence Pb B3:5/15 should stay sealed in correct?
If it should then that is not happening. When I release the silence Pb B3:5/15 coil goes off. Is this right? Do I just not correctly understand how a seal in works? Or could it be something with the processor?
I have cross referenced B3:5/15 and it is only used in this one ladder and as an xic and an ote one of each so nothing else is changing its state.
Help please. I am really confused.
I am modifying a program and I have run into a snag. I am working with a slc 5/04 processor and I programmed the attached logic. The problem I am having is that when one of the high level switches is active/on and it triggers my high level alarm active bit B3:0/6 and we wish to silence the alarm it does not seem to work.
When I press the I:4/7 silence Pb then the alarm ack coil B3:5/15 should have power flow and should seal itself in if my thinking is right. So when I release the silence Pb B3:5/15 should stay sealed in correct?
If it should then that is not happening. When I release the silence Pb B3:5/15 coil goes off. Is this right? Do I just not correctly understand how a seal in works? Or could it be something with the processor?
I have cross referenced B3:5/15 and it is only used in this one ladder and as an xic and an ote one of each so nothing else is changing its state.
Help please. I am really confused.