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 |