Technical specifications
8.6 Hardware descriptions
SIMATIC IPC427E
122
Operating Instructions, 09/2017, A5E37454814-AB
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).
8.6.4.4
Output register user LED L1/L2/L3 (read/write, address 404Eh)
Meaning of the bits
The "PC ON/WD" LED flashes yellow to indicate the progress of the BIOS self-test during
device startup. After the BIOS self-test has been completed, the "PC ON/WD" LED lights up
continuously green.
Output register L1/L2/L3 (read/write, address 404Eh)
Bits
15
14
13
12-8 7
6
5
4-0
1
1
LED L1 / Run/Stop dark (default)
1
0
LED L1 / Run/Stop lit yellow
0
x
LED L1 / Run/Stop lit green
1
1
LED L2 / SF dark (default)
0
x
LED L2 / SF lit red
1
0
LED L2 / SF lit yellow
1
1
LED L3 / Maint dark (default)
0
x
LED L3 / Maint lit red
1
0
LED L3 / Maint lit yellow
xxxx
xx
xxxx
xx
Reserved (read/write)
Содержание SIMATIC IPC427E
Страница 16: ...Overview 1 3 Accessories SIMATIC IPC427E 16 Operating Instructions 09 2017 A5E37454814 AB ...
Страница 146: ...Markings and symbols B 5 Interfaces SIMATIC IPC427E 146 Operating Instructions 09 2017 A5E37454814 AB ...
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