Technical data

"High": frames with this priority are given preference during data exchange.
This means that if an L2 station has no more token time available when it
receives the token, it can still transmit a high priority frame.
"Interrupt": these frames are handled just like high priority frames during
data exchange. They also trigger an interrupt in the receiving PLC
(IR-A/B/C/D).
SSAP: Local (Source) Service Access Point. (range of values:
2 .. 33).
Make sure you exclude the possibility of
overlapping with LSAPs for FMS links.
DSAP: Remote (Destination) Service Access Point. (range of
values: 2 .. 33, 56).
Make sure you exclude the possibility of
overlapping with LSAPs for FMS links.
Parameters
sending/receiving:
Parameters for the local station for transmitting and
receiving are entered here.
SSNR: Interface number, corresponds to the number of the
CPU and therefore forms the CPU-CP interface. (range
of values 0..3).
ANR: Job number via which the job is triggered. (range of
values transmitting :1..32, range of values receiving
:101..132).
Make sure you exclude the possibility of
overlapping with job numbers (ANR) for FMS links.
Output fields
Local L2 station
address:
L2 address currently being processed.
B8976060/02 S5-S5 Communication
7 - 13 Volume 1