I/O Address Areas; Overview Of The Internal Module Registers; Watchdog Enable Register / 066H Select Register (Read/Write, Address 062H) - Siemens SIMATIC IPC427E Operating Instructions Manual

Technical specifications
8.6 Hardware descriptions
8.6.4

I/O Address Areas

8.6.4.1

Overview of the internal module registers

The following addresses are used for the internal registers:
Addresses
I/O 062h
I/O 066h
I/O 404Eh - 404Fh
I/O 404Dh
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
120
Input/output unit
Watchdog enable register / 066h select register (Page 120)
Watchdog trigger register (read only, address 066h) (Page 122)
Output register LED 1/2/3 and SF LED / RUN/STOP LED (Page 122)
Battery status register (read-only) (Page 123)
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
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
Operating Instructions, 09/2017, A5E37454814-AB
Watchdog enable bit (WDE)
Watchdog Mode
066h select register selection
Scaler watchdog time (Normal/Macro)
SIMATIC IPC427E