Hello all,
Could someone further explain how to use the GSV instruction in RSLogix.
For example, if I want to monitor the communication status between the PLC and a VFD, I have read that you can use a GSV. Class name module, and attribute name EntryStatus.
How am I supposed to know what the value that I receive back means? What value indicates communication is OK? Not OK?
Like I said above, this is just one example of the GSV. What if I wanted to monitor the status of the controller? What value indicates minor fault, major fault, program mode, run mode, etc.
Thanks for any information!
Could someone further explain how to use the GSV instruction in RSLogix.
For example, if I want to monitor the communication status between the PLC and a VFD, I have read that you can use a GSV. Class name module, and attribute name EntryStatus.
How am I supposed to know what the value that I receive back means? What value indicates communication is OK? Not OK?
Like I said above, this is just one example of the GSV. What if I wanted to monitor the status of the controller? What value indicates minor fault, major fault, program mode, run mode, etc.
Thanks for any information!