I/O Terminal /
ERROR HANDLING AND DIAGNOSIS
56
I/O- RUN BF
DIA
Description
Remedy
On
Off
Off
Operating state: RUN, Inputs are
read and outputs are set
Everything is
operating
correctly
Start master
On On
Off,
blinking
1. Bus activity, but slave is already
parameterized
2. Bus error with reaction to
PROFIBUS error:
a.) Standard-Bus outputs become
0
or
b.) Standard-Bus outputs are
retained
Check
parameters,
configuration
(possible error in
DP start-up)
Off
Off
Off
Data exchange with the master is
not started
Starts the PLC
Off On On No
bus
activity
Start the master,
check the bus
cable
Off
On
Off,
blinking
Bus error with reaction to
PROFIBUS error: Standard-Bus
cycle is stopped
Start master,
check
parameters,
configuration
(possible error in
DP start-up)
8.1.1 DIA-LED
Blink
Codes
If an error occurs in the parameterization or configuration during DP start-up, this is indicated
both through the fieldbus LEDs and in the diagnostic data.
Blink Code
Fast Blinking
Start of the Error Code
First slow sequence
Error code
Second slow sequence
Error argument (error location)