Reset One shot

tactical

Member
Join Date
Nov 2012
Location
NE
Posts
41
I'm trying to reset the one shot function in row 0005 when then input switch is turned on. DO I need to put an OTU after the ONS? For some reason I can't get it to work.

hrmuki.png
 
Not being able to see all of the code, but the ONS automatically resets when the conditions before it go false. Is this not occurring?
 
Move the ONS instruction to the position before the compare instruction.

The result of the compare is = 1 if L11:1 is > 10
Once the ONS instruction is enabled, the rung-condition-in must go clear or the storage bit must be cleared for the ONS instruction to be enabled again.

 
The ons doesn't necessarily reset, instead the storage bit as JERA mentioned must be cleared. Based on your logic either the XIO switch input or the GRT instruction must have a false to true transition for the ONS to work correctly, so to conclude whenever the preceding instructions before the ONS go from false to true your ONS should work, if they don't work check to see if the XIC or the GRT are switching states, if they are not then see what makes them transition from a low to a high value for the XIC and also see what changes values to your L11:1 register.
 

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