Support for Siemens complex PLC Data Types/structures/UDTs via OPC UA
complete
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Daniel Nord
UDTs in the Siemens program are exposed in the address space as both a collection of nodes that can be read, written or subscribed to individually as well as a single complex DataType accessible in the value attribute of the parent of the collection of nodes in the address space that represent the UDT.
Currently, Ignition does not support accessing these complex DataType values. If implemented, the PLC Data Types can be reused as Ignition UDTs and linked with a single OPC-UA address.
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A
Alejandro Losada
Hello, We are testing to read both STRUCT types and PLC DATA TYPES in an S7-1500 PLC. For the STRUCT everything works correctly, we cand read the atomic STRUCT as json or import tag by tag. But for PLC DATA TYPES it seems that we can not read it (Bad), and no tags below are shown. PLC guy saids everything is correctly configured within the PLC... can you help us?
kevin@inductiveautomation.com
complete
kevin@inductiveautomation.com
Custom structured values in the PLC can be read and written atomically in Ignition 8 but there will be no integration or sharing of Data Types.
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Daniel Nord
Will this make it into Ignition 8?
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Daniel Nord
Great to hear Kevin!