Opc Access; Rfc1006 - Softing echolink S7-compact Getting Started

4 OPC Access

With different OPC-Server you have the opportunity to choose MPI/RFC 1006 or netlink as protocol.
Because of the more universal use we recommend to use MPI/RFC 1006 protocol.

4.1 RFC1006

echolink S7-Compact behaves similar to a Siemens S7 communication processor. If a Rack/Slot
Configuration is not offered by your OPC tool, it is necessary to configure a MPI
TSAPs directly to create a link between PLC and MPI connector. The first byte of the TSAP describes
the service used over this channel (02 or 03 for Visualization). The second byte contains the MPI
address. TSAP is always presented as Hex Code.
Sample
MPI®/PB Address
0
1
...
31
32
...
126
echolink S7-compact – Getting Started /
Rack
0
0
...
0
1
...
3
OPC Access
Slot
0
1
...
31
0
...
30
OPC Access | 15
®
/PB Address in the
®
/PB
TSAP(Hex)
02 00
02 01
...
02 1F
02 20
...
02 7E
15|