Siemens SIMATIC S5 Manual page 198

SAP Numbers / Job Numbers
The job number indicates the following:
• Which of the communications services is used (see table below)
• With PLC to PLC connections:
- in L2-SEND, which station will receive the data
- in L2-RECEIVE, which station transmitted the received data.
• With layer 2 accesses
- in L2-SEND, which layer 2 access is used for the data to be sent
- in L2-RECEIVE, which layer 2 access is used for the received data
Job Number
0
1 to 31
32
33 to 54, 64
55 to 63, 65 to 132
133 to 154, 164
155 to 163, 165 to 199
200
201
202
203 to 255
B-2
nothing
transmission (transmitting and receiving) via PLC to PLC
connection
nothing
sending the request and fetching the confirmation in the
case of layer 2 accesses
nothing
fetching the indication in the case of layer 2 accesses
nothing
service and diagnostics functions with FMA services
nothing
fetching the ZP slave life list for the ZP master with cyclic
I/O
nothing
S5-95U, SINEC L2
Used for
EWA 4NEB 812 6112-02