Siemens SIMATIC S5-90U System Manual page 573

S5-90U/S5-95U
Address RAM in the S5-90U
FC80
H
.
OB
.
FCFF
H
FD00
H
.
FB
.
FEFF
H
FF00
H
.
PB
.
FF7F
H
FF80
H
.
DB
.
FFFF
H
System Data Area of the S5-90U
Address System Data Word
(hex.)
EA0A
: 5 to 7
EA0F
EA42
EA43
EA46
EA47
EA4A
EA4B
EA50
40 to 47
EA5F
EA72
: 57 to 63
EA7F
EA80
: 64 and 65
EA83
EB00
128 to 202
EB95
EB96
203 to 214
EBAC
EWA 4NEB 812 6115-02b
Technical Specifications, DB1 Parameters, RAM Address Assignment
RS
33
35
37
Block address list
Meaning
Error messages
Indicator for how full the internal
program memory is
Start address for the internal RAM
End address for the internal RAM
CPU version / software version
SINEC L1 parameter field
Interrupt control word
Counter comparison value
Block stack
Interrupt stack
B-9