Is the DeltaV Ethernet I/O Card (EIOC) Interface, with Modbus TCP master
firmware, able to communicate with CoDeSys Modbus TCP slave
Has anybody some experience with DeltaV?
1) The EIOC supports only the Modbus TCP standard protocol;
the RTU via TCP and RTU via UDP are not supported in the EIOC.
Does CoDeSys use the "Modbus TCP standard protocol".
(I could not this information in any documentation.)
2) Modbus function code 8 and sub-function code 00 (echo request).
Does CoDeSys support :code 8"?
(In the documentation, "code 8" was not in the supported code list.)
3) Modbus TCP: Uses MODICON (PLC) based addressing (Modbus absolute addressing is not supported)
Which addressing is used by CoDeSys?
(CoDeSys does -not- specify which protocol is implemented.)https://www.emerson.com/documents/automation/s-series-ethernet-i-o-card-en-57652.pdf
Modbus TCP; Emerson DeltaV Ethernet I/O Card (EIOC) Interface