4 status displays – Siemens Simatic Industrial PC IPC427C User Manual

Page 20

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Description

3.5 Design

SIMATIC IPC427C

20

Operating Instructions, 04/2009, A5E02414743-01

3.5.4

Status displays

Status displays

LED

Meaning

LED

Description

PWR

Power supply

OFF

GREEN

Standby mode

Supply voltage available

WD

Watchdog status display OFF

GREEN

RED

Watchdog disabled Watchdog

enabled, monitoring time not

expired

Watchdog enabled, monitoring

time expired

User LED L1

OFF

YELLOW

RED

Can be controlled by user

programs

1

L1


SF

Group errors

RED

Can be controlled by controller

program (e.g. WinAC)

1

User LED L2

OFF

YELLOW

GREEN

Can be controlled by user

programs

1

L2


RUN/STOP

RUN

STOP

GREEN

YELLOW

Can be controlled by controller

program (e.g. WinAC)

1

1

You can find additional information about addressing the LEDs or the SRAM under a

Windows operating system in the section "Output register LED L1/L2". Example programs

for addressing the LEDs under Windows XP and under RMOS are available under the FAQ

at the Customer Support site Industry Automation and Drive Technologies - Homepage

(

http://www.siemens.com/automation/service&support

).

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