rowens
Member
I am not extremly familiar with some things in plc logic.
I have a program for a 313 cpu has has a contact for a timer that I have not seen before.
I understand timers.
The contact is in ladder logic.
It is drawn like a normally open or normally closed contact.
It does not have the slash line across the bars for normally closed. It has a dot in it between the bars.
can anyone explain this one for me?
I have a program for a 313 cpu has has a contact for a timer that I have not seen before.
I understand timers.
The contact is in ladder logic.
It is drawn like a normally open or normally closed contact.
It does not have the slash line across the bars for normally closed. It has a dot in it between the bars.
can anyone explain this one for me?