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Old December 14th, 2014, 07:52 PM   #2
Ron Beaufort
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Join Date: Jul 2002
Location: Charleston, SC
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I'm not 100% sure that I'm following everything that you're reporting -

but -

whenever an Allen-Bradley processor has a "go to run" experience - each OTE instruction will go write a ZERO into its bit box ... this is a part of the PRE-SCAN operation ...

if you'll look at it that way it will probably start to make sense ...

NOTE: it's a little more complicated than that for a ControlLogix or CompactLogix system - but we'll skip that part since you're not working with either of those platforms ...
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Last edited by Ron Beaufort; December 14th, 2014 at 07:56 PM.
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