Siemens SIMATIC S7-300 Manual page 25

LED
SF 5 VDC FRCE
Off On X (see the
description)
On On X
X On X
X On X
X On X
X On X
On On X
X X On
X X X
X X X
Flashes Flashes Flashes
S7-300 CPU Data: CPU 315T-2 DP
Manual, 12/2005, A5E00427933-02
Meaning
RUN STOP
Off On The CPU is in STOP mode.
Remedy: Start the CPU.
Off On The CPU is in STOP mode as a result of error.
Remedy: refer to the tables below, evaluation of the SF LED
Off Flashes The CPU requests memory reset.
(0.5 Hz)
Off Flashes The CPU executes memory reset.
(2 Hz)
Flashes On The CPU is in startup mode.
(2 Hz)
Flashes On The CPU was halted by a programmed break point.
(0.5 Hz)
For details, refer to the Programming Manual
STEP 7
X X Hardware or software error
Remedy: refer to the tables below, evaluation of the SF LED
X X You enabled the Force function
For details refer to the Programming Manual
STEP 7
On Flashes STOP/shutdown
(2 Hz)
What happens during shutdown?
The control of the Technology CPU is already in STOP mode during
"shutdown". The outputs of the centralized and distributed I/Os are
deactivated.
The integrated inputs/outputs for integrated technology and the
ET 200M on the DP(DRIVE) are still active during shutdown.
The integrated technology of the Technology CPU shuts down the
drives on PROFIBUS DP(DRIVE) in a controlled manner.
The integrated technology of the CPU then also goes into STOP.
The integrated inputs/outputs for integrated technology and the
ET 200M on the DP(DRIVE) are deactivated.
The maximum duration of shutdown depends on your configuration
in S7TConfig.
Flashes Flashes HOLD/shutdown
(0.5 Hz) (2 Hz)
Flashes Flashes Internal errors in Technology CPU.
Contact your local SIEMENS partner.
Setting up an S7-300 with a Technology CPU
4.8 Status and error displays of the Technology CPU
.
.
Programming with
Programming with
4-7