Status Displays - Siemens SIMATIC IPC427E Operating Instructions Manual

Overview
1.2 Design of the device
1.2.2

Status displays

LED
PC ON/WD
RUN/STOP / L1
ERROR / L2
MAINT / L3
For additional information on controlling the LEDs or the NVRAM with a Windows operating
system, please refer to Output register user LED L1/L2/L3 (read/write, address 404Eh)
(Page 122). 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)
14
State
Off
Green
Flashing green/yellow
(1 Hz)
Yellow
Flashing red (1 Hz)
Off
Green
Yellow
Off
Red
Flashing red
Off
Yellow
Red
Description
-
BIOS ready to boot; PC running
BIOS in POST, power switch on
Idle state
Watchdog status display: active
-
Can be controlled by user program
Can be controlled by controller program (e.g.
WinAC)
-
-
Can be controlled by user program or controller
program (e.g. WinAC)
-
-
Can be controlled by controller program (e.g.
WinAC)
Operating Instructions, 09/2017, A5E37454814-AB
SIMATIC IPC427E