Serial Interface (Uss); Connection - Siemens SIMOVERT FC Series Operating Instructions Manual

Connection and Start-up
4.1

Serial interface (USS)

4.1.1

Connection

Übergeordneter -A12
Rechner 6SE70
SCB2 S 1
Master
− +
-X128 1 2 3 4 5 -X129
Higher-level -A12
computer 6SE70
S 1
as the master SCB2
− +
-X128 1 2 3 4 5 -X129
4-2
Slave 1
-A12
6SE70
SCB2
6 7 8 9 1 0 -X128 1 2 3 4 5 -X129
Fig. 4-1 Connecting example 1:
SCB2 as a serial interface based on the USS protocol;
the bus connection is interrupted if one of the X128 connectors is pulled
out.
Slave 1
-A12
6SE70
SCB2
6 7 8 9 1 0 -X128
Fig. 4-2 Connecting example 2:
SCB2 as a serial interface based on the USS protocol;
the bus connection is maintained if one of the X128 connectors is pulled
out.
Terminals Function
X128.1 Cable 1
X128.2 Cable 1
X128.3 Cable 2
X128.4 Cable 2
X128.5
Table 4-1 X128 terminal strip on SCB2 for USS 2-wire
Terminals Function
X129.6 Input
X129.7 Input
X129.8 Output
X129.9 Output
X129.10
Table 4-2 X129 terminal strip on SCB2 USS 4-wire
Slave 2
S 1
6 7 8 9 1 0 -X128
Slave 2
S 1
1 2 3 4 5 -X129 6 7 8 9 1 0
Notes
RS 485 R/T+
RS 485 R/T–
RS 485 R/T+
RS 485 R/T–
Ground
Notes
RS 485 R+
RS 485 R–
RS 485 T+
RS 485 T–
Ground
6SE7087-6CX84-0BD0
Operating Instructions
10.98
-A12 Slave n
6SE70 (letzter
S 1 Slave,
SCB2
n ≤ 31)
1 2 3 4 5 -X129 6 7 8 9 1 0
≤ 31)
Slavesn, last slave, n
Bus termination must be
activated!
For i SCB2: S1closed
− +
Siemens AG
SIMOVERT MASTERDRIVES