Hi, we had a negative experience with MarkV profibus gateway communication.
We got the next information about this communikation from Atlas Copco. "In other installations our customer the communication based on 1DR.
1DR is 1 analog input sent from master to slave…byte 0 = header, byte 1 = CAN address, byte 2 and 3 = what data point you want to read, byte 4,5,6,7 =0
Answer from slave byte 0 = header, byte 1 = CAN address, byte 2 and 3 = what data point you asked for, byte 4 and 5 the value, byte 6 and 7 the status.
Every 50 ms a new request will be sent with 1DR and a new data point.
So you can get every information from compressor or dryer but one after the other."
It is not correct PROFIBUS communication. It is very slow. Finally we used MODBUS communication.
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Hi, I have one question. How long is the cycle time?
Thank you very much. The input output was really what I was struggling with. This now is a lot more clear. I appreciate your assistance.
Yes I did
It is no standard profibus protocol.
Yup have okay One Data Input and you have to write a routin
die each Data Point Yup wann zu have.
So teh Data exchange could take a while.
Read the Handbook of the Gateway, it helps.
I wrote the routine in structure text.
I can give Yup hints for the realisation but
not the fixed solution. This is your