Expansion Interface; Connector For Load Voltage - Siemens SIMATIC S5 Manual

IP 265
2.4

Expansion Interface

You can link the IP 265 with a further IP 265 via the expansion interface. This is only possible with
the special connection cable offered by Siemens.
This extension can become necessary if
• the number of digital inputs and outputs of one IP 265 (24 V) or
• the program capacity of one IP 265
are not sufficient in the case of a more complex application.
The 15-pin sub D socket of the module has 8 pins for expansion purposes. The pins of the
expansion interface are optionally available (freely configurable with COM 265) as expansion inputs
or as expansion outputs. The remaining 6 pins of the sub D socket are irrelevant ( Section 2.3.3)
for the expansion.
Note
The expansion inputs/outputs are connected to the same sub D socket as the differential
inputs ( Section 2.3.3). When using the expansion inputs/outputs, simultaneous use of
the differential inputs is not possible.
Unwired ("open") expansion inputs/outputs are handled by the IP 265 as expansion inputs with
signal state "1" (5 V).
Warning
!
Unlike the 24 V outputs, the extension outputs are not reset in the case of STOP of the
IP 265. They maintain their original signal state "0" (0 V) or "1" (5 V).
The extension inputs/outputs are to be used exclusively for expansion purposes. No
sensors or actuators may be connected to the expansion inputs/outputs.
2.5

Connector for Load Voltage

The load circuit of the system control is supplied with 24 V DC via the load voltage connector.
Note
Only if the 24 V DC load voltage is connected to the IP 265 can the module be switched
to RUN.
EWA 4NEB 812 6130-02a
Technical Description
2-5