Overview
1.2 Structure of the devices
SIMATIC IPC227E
16 Operating Instructions, 11/2016, A5E35782395-AB
PC ON/WD
Flashing green/yellow (1 Hz)
BIOS in POST, power switch on
Watchdog status display: active
RUN/STOP / L1
Can be controlled by user program / control
program (e.g. WinAC)
ERROR / L2
Can be controlled by user program / control
program (e.g. WinAC)
MAINT /
L3
Can be controlled by user program / control
program (e.g. WinAC)
You can find information on the individual LEDs in the section Output register user
LED L1/L2/L3 (read/write, address 404Eh) (Page 117). Example programs for controlling the
LEDs on Windows operating systems are available on the Customer Support page of
Siemens Industry Automation and Drive Technologies.
(http://www.siemens.com/automation/service&support)
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