Led Display For Profibus-Dp (Im 151-7 Cpu Is An I Slave) - Siemens SIMATIC ET 200S Manual

Commissioning and Diagnostics
Diagnosis of DP functionality using the "BF" and "SF" LEDs
If the "BF" and "SF" LEDs light up or flash, the ET 200S is not configured correctly.
The tables below shows you the possible error indications together with their
meanings and the necessary action.
The table 7-4 shows the LED states for I slave operation. DP functionality is
irrelevant in stand-alone operation (MPI), and a BF LED is not activated (there is
no LED for transmission rate detection).
Table 7-4

LED display for PROFIBUS-DP (IM 151-7 CPU is an I slave)

"BF" "SF"
LED LED
On IM 151-7 CPU
On On No connection to
the DP master
Flashing On Parameter
assignment error;
there is no data
exchange
Off On Error in I slave:
Diagnostics
interrupt
Off Off Data exchange
taking place
7-10
Description
S
IM 151-7 CPU is the active
node ⇒ Bus short-circuit
S
IM 151-7 CPU is the
passive node ⇒
Transmission rate detection
No active node at bus, DP
master does not exist or is
switched off, or bus
connection interrupted
SF is on due to station failure
S
I slave not configured or
incorrectly configured
S
Incorrect but permissible
station address configured
S
Configured address areas of
the actual configuration not
identical to the target
configuration
S
Station failure of a
configured sender in direct
data communication
S
DP master does not exist or
is switched off
Master in STOP
The target configuration and
actual configuration of the
ET 200S match.
Cause
S
S
S
S
S
Switch the DP master to
RUN mode.
ET 200S IM 151-7 CPU Interface Module
Error handling
Check that the connector
for the PROFIBUS-DP is
inserted correctly
Check whether the bus
cable to the DP master is
defective
Check the hardware of
the ET 200S
Check the configuration
and parameterization of
the ET 200S
Check the setting for the
configured address areas
for the master
A5E00058783-04