Status Displays - Siemens SIMATIC IPC677D Operating Instructions Manual

Overview
1.2 Design of the device
1.2.2

Status displays

The status display consists of four two-colored LEDs.
Position
①
②
③
④
For additional information on controlling the LEDs or the SRAM with a Windows operating
system, please refer to the chapter "Buffer memory SRAM (optional) (Page 66)". Example
programs for controlling the LEDs under Windows operating systems is available on the
Internet at the following address: Technical Support
(http://www.siemens.de/automation/csi_en_WW)
16
LED State
PC ON/WD Off
Green
Flashing green/yellow
(1 Hz)
Yellow
Flashing red (1 Hz)
RUN/STOP / Off
L1
Green
Yellow
ERROR / L2 Off
Red
Flashing red
MAINT / Off
L3
Yellow
Red
Description
-
BIOS ready to boot
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, 09/2014, A5E32995420-AC
SIMATIC IPC677D