ValeoBill
Member
I'd like to get some feedback on the use of latching/unlatching relays. (Something I've never used in my limited programming experience.) I've recently encountered machines where their use is is both plentiful and seemingly without any pattern. I've seem the same relay latched in multiple routines with only a single unlatch instruction and also the opposite; latched in one spot and unlatched in multiple rungs. Surely this is not the conventional or preferred method. My gut tells me I've met a programmer who is rather unique. I am humble enough to admit I could be completely wrong on this. NOTE: I'm dealing with the AB5000 platform. Not sure if this instruction set is used in other PLC software.
Any comments will, as always, be appreciated.
Any comments will, as always, be appreciated.