RSLogix 5000: tag attribute for force?

K

Thread Starter

Kevin

I would like to get my HMI/SCADA (iFix) to recognize whether or not a bit in my PLC is forced. Any thoughts?

thanks,
Kevin
 
Hi Kevin,

you can use the GSV instruction in the PLC, where the following variables in the instruction are as follows...

1) Clas Name - MODULE
2) INstance Name - blank
3) Attribute Name - ForceStatus
4) Dest - Force_Status

Note Force_Status is a DINT Tag.

Examine bit 0 for a "1" if forces are installed
Examine bit 0 for a "0" If forces aren't installed
Examine bit 1 for a "1" if forces are enabled
Examine bit 1 for a "0" if forces aren't enabled

hope that help...

regards Matt
 
Hello, Matt

Can you read the Force Mask, which shows which I/O is forced on/off?

Force Mask is a column on the Tag Monitor window.

thanks.
Peter Shi
 
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