Siemens simatic ipc227e User Manual

Technical specifications
7.5 Hardware descriptions
SIMATIC IPC227E
Operating Instructions, 11/2016, A5E35782395-AB
117
Watchdog enable register / 066h select register (r/w address 062h)
Trigger red Watchdog LED
0 Red LED (WD) off
1
Red LED (WD) on
Watchdog error / Display and reset
0
WD inactive
1 WD triggered
Reset LED after watchdog alarm
(Bit 7 = write 1)
7.5.5.3
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).
7.5.5.4
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)

Siemens simatic ipc227e Specifications

General

Brand	Siemens
Model	simatic ipc227e
Category	Industrial PC
Language	English