B.2 Access Commands For The 944 Cpu - Siemens SIMATIC S5 Manual

Distributed i/o system
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Access commands for the S5-115U, S5-135U and S5-155U programmable controllers

B.2 Access commands for the 944 CPU

Linear addressing
B-4
When you use linear addressing for the 944 CPU, you can access the P area
and – via FB 196/197 – the Q area:
Table B-3
Linear addressing with 944 CPU
Inputs
I/O address
CPU 941 (P area):
0 to 63
CPU 942 to 944
(P area):
0 to 127
CPU 941 to 944:
(P area)
(P area)
128 to 255
0 to 255
(Q area)
Outputs
I/O address
CPU 941 (P area):
0 to 63
CPU 942 to 944
(P area):
0 to 127
CPU 941 to 944:
(P area)
(P area)
128 to 255
0 to 255
(Q area)
Address for direct
Access commands
access
U E x.y / UN E x.y
O E x.y / ON E x.y
F000
to F03F
H
H
L EB x
L EW x
L PY x
L PW x
F000
to F07F
H
H
LIR
L PY x
L PW x
L PW x
LIR
F080
to F0FF
H
H
F100
to F1FF
FB 196/197
H
H
Address for direct
Access commands
access
S A x.y
= A x.y
F000
to F03F
H
H
T AB x
T AB x
T PY x
T PW x
F000
to F07F
TIR
H
H
T PY x
T PW x
T PW x
TIR
F080
to F0FF
H
H
F100
to F1FF
FB 196/197
H
H
ET 200 Distributed I/O System
TNB
TNB
R A x.y
T AW x
T AW x
TNB
TNB
EWA 4NEB 780 6000-02a

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