Siemens SIMATIC S5 Manual page 52

Addressing
5
Remember
The 1P 265 is provided with
interfaces to the process,
. a port to a further 1P 265 and
a port to the 1/0 bus for communication with the CPU.
Figure 5-I shows the relation between the hardware ports of the 1P 265 and the margin bar objects
of the control system flowchart (IP 265
flowchart are in the margin bars.
CPU-RAM
24 V inputs
t
EWA 4NEB 812 6130-02a
user
program). Possible operands of the control system
Cyclic
Control system flowchsrt
Input
meters
Digital
inputs
(1...)
tars
—
8 local expansion inputs'1
3 local differential inputs
Figure 5-1.
Communications Model
(1/0
output
para-
meters
Digital
outputs
&
(Q...)
(#...)
8 local 8 local
expansion outputs= 24 V OU@WS
Addressing
CPU-RAM
Output parameter
Output parameter
Output parameter
Output parameter
5-1