Hi all,
I have a pretty simple application that I can't seem to get straight in my head. I have a 525 which is set to start/stop based on discrete I/O (terminals on drive). However, I need to vary the Commanded Frequency via E/IP.
From what I understand I can't use DataLinks because I'm communicating via SLC 5/05, please correct me if I'm wrong there. So it appears my only option is to use explicit messaging via EEM instruction. I've tracked down parameter P047 (Speed Ref) and I know I need to set it to '15' = E/IP. However, I don't know where to go from there. What parameter do I write to for the actual frequency reference?
I have a pretty simple application that I can't seem to get straight in my head. I have a 525 which is set to start/stop based on discrete I/O (terminals on drive). However, I need to vary the Commanded Frequency via E/IP.
From what I understand I can't use DataLinks because I'm communicating via SLC 5/05, please correct me if I'm wrong there. So it appears my only option is to use explicit messaging via EEM instruction. I've tracked down parameter P047 (Speed Ref) and I know I need to set it to '15' = E/IP. However, I don't know where to go from there. What parameter do I write to for the actual frequency reference?