Watchdog Enable Register / 066H Select Register (Read/Write, Address 062H); Watchdog Trigger Register (Read Only, Address 066H) - Siemens SIMATIC IPC427E Operating Instructions Manual

8.6.4.2

Watchdog enable register / 066h select register (read/write, address 062h)

Meaning of the bits
Watchdog enable register / 066h select register (r/w address 062h)
Bit
7
0
1
8.6.4.3

Watchdog trigger register (read only, address 066h)

Watchdog trigger register
The watchdog is triggered by a read action (address 066h) by this register. The result of the
read access can be disregarded (i.e., dummy read).
SIMATIC IPC427E
Operating Instructions, 02/2021, A5E37454814-AE
6 5 4 3 2 1
0
1
0
1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0
1
Meaning of the bits
0
0 Watchdog circuit disabled
1 Watchdog circuit enabled
Standard
Macro
Reserved
94 ms / 2 s (default)
210 ms / 4 s
340 ms / 6 s
460 ms / 8 s
590 ms / 16 s
710 ms / 32 s
840 ms / 48 s
960 ms / 64 s
Red LED (WD) off
Red LED (WD) on
WD inactive
WD triggered
Reset LED after watchdog alarm
(Bit 7 = write 1)
Technical specifications
8.6 Hardware descriptions
Watchdog enable bit (WDE)
Watchdog Mode
066h select register selection
Scaler watchdog time (Normal/Macro)
Trigger red Watchdog LED
Watchdog error / Display and reset
103