Diagnostics Based On The "Bf" Led - Siemens SIMATIC VS120 Operating Instructions Manual

Alarm, error and system messages

11.3 Diagnostics based on the "BF" LED

11.3 Diagnostics based on the "BF" LED
11.3
"BF" LED with PROFIBUS DP
"BF" LED
ON
Flashing
"BF" LED with PROFINET I/O
"BF" LED
ON
Flashing
11-10
Meaning if an error occurs
SIMATIC VS120 is not in the data
exchange phase but is searching
for the transmission rate
SIMATIC VS120 is neither in the
data exchange phase nor
searching for the transmission rate
Meaning if an error occurs
Bus problem (no physical
•
connection to a subnet/switch)
Wrong transmission rate
•
Full duplex transmission is not
•
enabled
Bus communication via
•
PROFINET IO has been
interrupted.
IP address is incorrect.
•
Bad engineering configuration
•
Incorrect parameter
•
assignment
Incorrect or missing device
•
name
IO controller not
•
available/switched off but
Ethernet connection
established
Remedies
Check that the bus connector is correctly
•
inserted.
Check that there is no break on the
•
bus cable to the DP master.
If you use an S7 DP master: Check the
•
diagnostic buffer of the DP master or the slave
diagnostic information in HW Config.
Check the cable lengths relative to the
•
transmission rate.
Check the settings of the terminating resistors.
•
Check the configuration of the DP master
•
(PROFIBUS address, transmission rate,
configuration, bus profile).
If you use an S7 DP master: Check the
•
diagnostic buffer of the DP master or the slave
diagnostic information in HW Config.
Remedies
Check that the bus connector is correctly inserted.
Check whether the IP address or device name is
duplicated on the network.
Check the settings of the IO controller.
Operating Instructions, Edition 02/2006, A5E00757507-01
Vision Sensor SIMATIC VS120