4/19/2019 11:48 AM | |
Posts: 2 Rating: (0) |
Hello community, I want to discuss the use of data structures on the PLC side for use in HMI. There were already discussions about similar topics but I couldn't find satisfying answers. We are currently desiging a new template (PLC and HMI) for future use. In our old system there was one WORD for the messages (even bits in WORD) and PLC ACK (uneven bits in WORD) and an additional WORD for HMI ACK - this was used per component/area. The bits were accsessed in the PLC with AT Array of Bool or via Slice access. For our new system we for sure want to use UDTs (PLC data types) for the sake of readability and documentation for the alarms/messages of every component/area. Here are the two ways how to handle it I was thinking of:
Further information if needed:
I'm looking forward to an interesting discussion and I'm thankful for all your input! loland |
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