Product description
2-12 Application Module FM 458-1 DP - User Manual
A5E01078222-02 Edition 03.2009
2.1.6 Status displays
There are eleven LED displays on the front panel of the FM 458-1 DP.
They provide information about its actual operating status and data for
diagnostics. After the voltage runs-up, all LEDs are "DARK".
LED Color Status Significance
INTF Red Bright
Internal fault, user program is not running
EXTF Red Bright
External fault (External Failure)
e.g. bus fault, connection failed
The fault is resolved after troubleshooting outside the module.
IF Red Bright
Initialization error
For errors which occur when initializing the system, the user program
does not start. Initialization errors due to incorrect modules or modules
which are incorrectly inserted with respect to how they were originally
configured
Bright
PROFIBUS DP- bus fault
Bus fault for CPUs with integrated DP interface
BUSF Red
Flashing One or several slaves at the PROFIBUS DP interface do not respond.
UF Yellow Bright
User error
User program runs, can be controlled by the user with the USF
function block
MF Yellow Bright
Monitoring error
The user program runs, error during initialization which permits
standard operation to start, e.g. missing or discharged buffer battery.
CF Yellow Bright
Communications error
The user program runs, incorrectly configured communications or
erroneous connection to SIMATIC S7-CPU or EXM 448
TF Yellow Bright
Task administration error
The user program runs, the following error cases are possible:
Cycle error
a task was not able to be completed within the task sampling time.
Task back-up
if the task is not tagged as a task to run with the highest priority - but it
must be restarted.
No free local buffer
the data buffer is no longer enabled. Task start is bypassed.
Software Watchdog
if the basic sampling time is not processed four times one after the
other. The basic clock cycle timer is re-initialized with the configured
basic sampling time and processing is continued.
RESERVED Yellow Dark Don´t care
RUN Green Bright
RUN condition
The user program runs, the module operates normally also if UF, MF,
CF or TF = "bright"
Flashing Initialization running
To Next Page
Loading...
