Interconnecting Two Ip 265S; Power Supply For Expanded Ip 265S - Siemens SIMATIC S5 Manual

IP 265
12.2

Interconnecting Two IP 265s

Siemens provides a prefabricated, shielded standard cable for the electrical connection between two
IP 265s (expansion cable).
Insert the two ends of the expansion cable into the 15-pin sub D "Interface" sockets on the two
IPs. This establishes the expansion interface connection( Section 2.4).
Note
The expansion inputs/outputs must be operated only with the special expansion cable
provided for that purpose (Order No.: See Appendix G).
12.3

Power Supply for Expanded IP 265s

The load voltage (24 V DC) is fed in over the two-pin connector on the frontplate of each IP 265.
Figure 12-2 shows how to connect the expanded IPs to the PLC.
Central grounding
point
Connection for
common refe-
rence potential
M
External power
supply
Figure 12-2. Simplified Diagram for Non-Isolated Connection
Note
When using IP 265s, you must join the IP 265 load voltage connector's zero potential
with the CPU's zero potential via an external connection at the central grounding point
( Figure 12-2). Care must be taken that a low-resistance connecting cable be used
(and that it be as short as possible).
EWA 4NEB 812 6130-02a
PS CPU
L+
M
L+
of an Expanded IP 265 to the PLC
IP 265 Expansion
IP IP
Expansion
interface
L+
M
Expansion cable
from Siemens AG
12-5