IBHNet:RFC1006 Communication IBH Link S7++/S7++HS

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PC-based visualization systems can be coupled by the IBH Link S7++ / S7++ HS to an S7 PLC without the IBHNet driver in order to read and write data.


The IBH Link S7 / S7 Plus needs an additional tool for the RFC1006 communication. For details see chapter "RFC1006 Communication IBH Link S7 / S7 Plus".


RFC1006 uses a rack and a slot number for addressing. These are directly converted to the MPI address. In order to access MPI address 2 you need to use the value 0 for the rack number and 2 for the slot number on the side of RFC1006, for precise assignment see the table below. Some visualization software needs the TSAP. The assignment is listed in the following table:

MPI Rack Slot TSAP
0 0 0 0200
1 0 1 0201
2 0 2 0202
... ... ... ...
31 0 31 021F
32 1 0 0220
33 1 1 0221
... ... ... ...
63 1 31 023F
64 2 0 0240
65 2 1 0241
... ... ... ...
95 2 31 025F
96 3 0 0260
97 3 1 0261
... ... ... ...
126 3 30 027E