BECKHOFF BK3xx0 - Manual (Page 65)

Notes on the Documentation
Fieldbus Components 63
K-Bus LEDs (local errors)
Two LEDs, the K-Bus LEDs, indicate the operational state of the Bus Terminals and the connection to these Bus
Terminals. The green LED (I/O RUN) lights up in order to indicate fault-free operation. The red LED (I/O ERR) flashes
with two different frequencies in order to indicate an error. The errors are displayed in the blink code in the following
way:
Error type
Error code
Error code
argument
Description Remedy
Persistent,
continuous
blinking - General K-bus error. Check the Bus Terminal strip
0 EEPROM checksum
error. Set manufacturer’s setting with the KS2000
software
1 Inline code buffer
overflow. Connect fewer Bus Terminals; too many entries
in the table for the programmed configuration
1 pulse
2 Unknown data type. Software update required for the coupler
0 Programmed
configuration incorrect. Check programmed configuration for correctness 2 pulses
n>0 Incorrect table entry Bus
Coupler / incorrect table
comparison (Bus Terminal
n). Correct table entry / Bus Coupler
No Bus Terminal connected; attach Bus
Terminals 3 pulses 0 K-Bus command error.
One of the Bus Terminals is defective; halve the
number of Bus Terminals attached and check
whether the error is still present with the
remaining Bus Terminals. Repeat until the
defective Bus Terminal is located.
4 pulses 0
n K-Bus data error, break
behind Bus Terminal n. Check whether the n+1 Bus Terminal is correctly
connected; replace if necessary.
Check whether the End Terminal 9010 is
connected.
5 pulses n K-Bus error in register
communication with Bus
Terminal n. Replace Bus Terminal n.
7 pulses n BK3x10 or LC3100:
unsupported Bus
Terminal detected at
location n. Only use digital (bit oriented) Bus Terminals, or
use a BK3120 Bus Coupler.
9 pulses 0 Checksum error in
program flash memory. Set manufacturer's setting with the KS2000.
13 pulses 0 Runtime K-Bus command
error. One of the Bus Terminals is defective; halve the
number of Bus Terminals attached and check
whether the error is still present with the
remaining Bus Terminals. Repeat until the
defective Bus Terminal is located.
14 pulses n Bus Terminal n has the
wrong format Start the coupler again, and if the error occurs
again then exchange the Bus Terminal.