Nhrafan26
Member
Been a long time since my last post and I was just learning even what a PLC is. Since then I have been fortunate to work with some great guys and learn from them and been in a few positions that have allowed me to troubleshoot and modify logic as needed.
]Now I am in a position where I am writing my own programs and making everything work together.
Where I am getting stuck is the messaging. We use some not so normal things here to get our information across which is interesting.
Right now I am trying to set up a heartbeat message as well as the transfer of information to a server. I am using a micrologix 1400 seriesB and going over ethernet. I have the IP set up for this and the server is able to see it. I have the server IP as well but I am not sure how to set up the message instruction along with the ER EN DN etc bits.
I am looking at the message like a timer right now and I think that's wrong. What I mean is looking at it as the rung goes true, the EN bit sets, the message completes, the DN bit sets or ER if there is an error like a timeout. Then you reset the rung and start over.
Can someone explain it a little better so I can get a better understanding of it? I have read the help files and read through most in the book but something with an example would really help.
]Now I am in a position where I am writing my own programs and making everything work together.
Where I am getting stuck is the messaging. We use some not so normal things here to get our information across which is interesting.
Right now I am trying to set up a heartbeat message as well as the transfer of information to a server. I am using a micrologix 1400 seriesB and going over ethernet. I have the IP set up for this and the server is able to see it. I have the server IP as well but I am not sure how to set up the message instruction along with the ER EN DN etc bits.
I am looking at the message like a timer right now and I think that's wrong. What I mean is looking at it as the rung goes true, the EN bit sets, the message completes, the DN bit sets or ER if there is an error like a timeout. Then you reset the rung and start over.
Can someone explain it a little better so I can get a better understanding of it? I have read the help files and read through most in the book but something with an example would really help.