Siemens 6AV3991-1AJ02-0AB0

12-11
TP27, TP37 Equipment Manual
Release 01/00
The IF1B interface can be configured by using the DIL switches, located
beside the 9–pin Sub-D connector. This interchanges the RS422 receive data
and the RTS signal. By default, the RTS signal is not required by the
communication peer.
The table shows the permissible DIL switch settings.
Commun
i
cat
i
on
Sw
i
tch Sett
i
ng
C
ommun
i
ca
ti
on
S
w
it
c
h
S
e
tti
ng
TP
PLC
RS422/RS485
ON
OFF
1234
PLC
PPI/MPI/PROFIBUS
TP
RTS on pin 4 (default)
ON
OFF
1234
RTS on pin 9 (same as PU)
ON
OFF
1234
No RTS on plug
ON
OFF
1234
PLC
PPI/MPI
Standard cable
TP
ON
OFF
1234
Configure interface
IF1B
Installation