Good Evening ,
I'm finally understanding a MSG instruction a little better.
My question is , I'm using a MSG read in a CompactLogix to see the status of a Integer in a SLC 5/05 . Should you use a MSG read,in a CompactLogix, just sit there on the rung , or should you use a timer to pulse the Message/ Read on and off ?
I took notice of several MSG instructions that there is timers that seem like they are updating the Message instructions .
If this is the case , why would this be done ? It seems to me , if you have a quick True / False transition on the SLC 500 that you could possibly miss capturing this on your Compactlogix MSG / Read.
Any thoughts and / or advice ?
Thanks so much for your help.
I'm finally understanding a MSG instruction a little better.
My question is , I'm using a MSG read in a CompactLogix to see the status of a Integer in a SLC 5/05 . Should you use a MSG read,in a CompactLogix, just sit there on the rung , or should you use a timer to pulse the Message/ Read on and off ?
I took notice of several MSG instructions that there is timers that seem like they are updating the Message instructions .
If this is the case , why would this be done ? It seems to me , if you have a quick True / False transition on the SLC 500 that you could possibly miss capturing this on your Compactlogix MSG / Read.
Any thoughts and / or advice ?
Thanks so much for your help.