AB-ControlLogix - MOV function in ladder and FB equivalent

user68 · Jun 25, 2011

Hi all,
Is there a equivalent function block that do the same as MOV function in ladder?
Thanks.

Operaghost · Jun 25, 2011

The MOV isn't really necessary in FBD, but if you must, use an IREF and wire it to an OREF.

OG

user68 · Jun 26, 2011

Thanks OG.

I'd like to do the following with function block:

if condition is true
Update register A (Real) = register B (Real)
if condition is false
register A is available to accept user's input

Any suggestion is appreciated.
Thanks

Ron Beaufort · Jun 27, 2011

see if this SEL (Select instruction) helps get you started ...

and welcome to the forum ...

.

user68 · Jun 27, 2011

Thanks Ron,

I have Register_A is the interface tag to DCS, so when it is not used by the plc program (when condition is false), it needs to be able to accept user's input from DCS. Is there a way that Register_A can receive update data from another register within the plc without being tied to a specific block.
Thanks.

user68 · Jun 27, 2011

I was able to find the way to do this. Thanks for all your inputs/suggestions.

AB-ControlLogix - MOV function in ladder and FB equivalent

user68

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Ron Beaufort

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