RS Logix 500 Thinking of using a DCD Instruction

Rob S.

Member
Join Date
Sep 2008
Location
Maryland
Posts
739
I am replacing a old plc in some used equipment. I would like to keep the drawings close to the same,and the control
wiring the same. I have a Thumbwheel switch and I would like
to use a DCD instruction and look at Inputs I:0/10,I:0/11,
I:0/12, I:0/13. What would be the best way to see those 4 input bits? Would I need to use a MOV ,and how would I represent a input byte or input word in a intruction.
I should know this stuff. I can't remember nothing,anymore.
 
Thanks Mr.Carlton ,

I placed a MOV instruction

Source I:0/10

Dest N7:0

I keep getting : address must be specified to the word level

How would I represent the source to the "word level"

Thanks,
 

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