Siemens SIMATIC IPC PX-39A PRO - Page 120

Hardware description
A.4 System resources
SIMATIC IPC PX-39A PRO
120 Operating Instructions, 11/2022, A5E51699950-AA
Meaning of the bits
WDT control register (read/write, address 285h)
Bits
Meaning of the bits
7
6
5
4
3
2
1
0
x
Reserved
x
Reserved
x
Reserved
0
WDT count mode: in seconds
1
WDT count mode: in minutes
x
Reserved
x
Reserved
x
Reserved
x
Reserved
WDT counter register (read/write, address 286h)
Bits
Meaning of the bits
7
6
5
4
3
2
1
0
00h-FFh
Countdown time
WDT status register (read/write, address 287h)
Bits
Meaning of the bits
7
6
5
4
3
2
1
0
x
Reserved
x
Reserved
x
Reserved
x
Reserved
0
WDT status: Active
1
WDT status: Expired
x
Reserved
x
Reserved
x
Reserved