IV-500 fetch status
Hello Ken Roach,
Thank you for providing the sample code to explain how to fetch tag from IV-500 system. I have one question about the communication between PLC. In your main routine, you use MSG to fetch the status of IV-500C status, but why not use CPS directly copy from the tag? Is it because for double checking the connection is still alive? Sometimes, I feel quite confusing when I should use MSG rather than the other method.
So appreciate your reply in advance!
Frank:book: