I/O Bus System; Configuration Of The I/O Bus System - Siemens SIMATIC PCS 7 Manual

6.3

I/O bus system

6.3.1

Configuration of the I/O bus system

I/O bus A and B
Connecting TM I/O to PCS 7
C79000-G8076-C710-04
Connection and termination of the 50-pole ribbon cables can vary, depending
on requirements.
Version 1: Bus A with 5 slots
Version 2: Bus A with 3 and bus B with 2 slots
Version 3: Bus A with 2 and Bus B with 3 slots
Version 4: Bus B with 5 slots
Of importance are only versions 1 and 2. These can be realized easily with
suitable ribbon cable connectors.
to version 1:
• Mount the ribbon cable for bus A on the upper mounting point
• Connect the ribbon cable connector to X34 and X12 by using a
C79451-A3496-D1 cable and 4 ribbon cable connectors (also for stand-
alone use) or by crimping two additional ribbon connectors onto an exi-
sting cable (system substitution) (see Figure 4-2)
to version 2:
• Mount the ribbon cable for bus B on the upper mounting point
• Connect the bus B ribbon cable connector to X34 by using the first one of
two C79451-A3496-D2 cables with three ribbon cable connectors (also
for stand-alone use) or crimping an additional ribbon cable connector
onto an existing cable (system substitute to expansion cabinet)
• Mount the ribbon cable for bus A on the upper mounting point
• Connect the bus B ribbon cable connector to X12 by using the second one
of two C79451-A3496-D2 cables with three ribbon cable connectors (also
for stand-alone use) or crimping an additional ribbon cable connector
onto an existing cable (system substitute to basic cabinet)
Note: The ribbon cable must be folded twice.
Note: C79451-A3496-D2 consists of two ribbon cables.
to version 3:
• analog to 2.
to version 4:
• analog to 1.
Note
The specified C79451-A3496-D1 or -D2 ribbon cable sets are not part of the
migration rack.
Migration rack II
6-7