SkipD
Member
Does anyone know what the interpretation for what looks like a broken contact at the beginning of a rung is in PLC-2? Is it an AFI, some type of branch?
RSI PLC-2 Symbol Identification
- Thread starter SkipD
- Start date
Ken Roach
Lifetime Supporting Member + Moderator
I ran into that a few months ago; I believe you're right that it's functionally an Always-False Instruction (AFI). I couldn't find it in any of the PLC-2 User's Guides so it might be in the AI-2 software or 6200-PLC2 software guides.
Does that output ever come on, on the machine ?
Does that output ever come on, on the machine ?
That's what it is. IIRC it's entered by inserting an 'end branch' instruction
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