4-13
SIMATIC PC RI25/45, Technical Description
C79000-G7076-C808-01
The register base a 0Fh defines parameters for interrupts and
watchdog times as well as reactions concerning excess temperature and the
watchdog.
WR base a 0Fh
0 0 0
No interrupt enabled
Interrupt selection
0 0 0
IRQ 5
0 1 0
IRQ 15
0 1 1
IRQ 12
1 0 0
IRQ 11
1 0 1
IRQ 10
0 0
T
WD
= 1 s
0 1
T
WD
= 2 s
1 0
T
WD
= 8 s
1 1
T
WD
= 16 s
0
No IRQ with executed
WD 1
IRQ with executed WD
0
Executed WD does not trigger reset
1
Executed WD triggers reset
0
No IRQ with temperature error
1
IRQ with temperature error
HSB
LSB
Note
If you modify the watchdog time after the watchdog has been activated (that
is during watchdog execution), the watchdog is retriggered.
Writing the
Register Base
A 0Fh
Monitoring Module