Beckhoff BC7300 Manual page 17

Modbus bus terminal controller
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Blink code
Error code
Error
argument
Persistent,
continuous
blinking
1 pulse
0
1
2
2 pulses
0
n (n > 0)
3 pulses
0
4 pulses
0
n
5 pulses
n
9 pulses
0
n (n>0)
14 pulses
n
15 pulses
n
16 pulses
n
BC7300
The error is encoded in the blinks as follows:
Fast blinking
First slow sequence
Second slow sequence
Start of the error code
Description
EMC problems
EEPROM checksum error
Inline code buffer overflow
Unknown data type
Programmed configuration
Incorrect table entry / Bus Coupler
Incorrect
table
comparison
Terminal n)
K-Bus command error
K-Bus data error
Break behind Bus Terminal n (0:
coupler)
K-Bus
error
with
communication with Bus Terminal n
Checksum error in program flash
memory
Bus Terminal n is not consistent with
the configuration that existed at boot
image entry
Bus Terminal n has the wrong format
Number of Bus Terminals is no longer
correct
Length of the K-Bus data is no longer
correct
The number of pulses (n) indicates the position of the last Bus Terminal
before the fault. Passive Bus Terminals, such as a power feed terminal, are
not included in the count.
In the case of some errors, rectification does not cause the Bus Coupler to
leave the blink sequence. The Bus Coupler stays in the "Stop" state. The
Bus Coupler can only be re-started either by switching the power supply off
and on again, or by a software reset.
Insertion and removal of Bus Terminals is only permitted when switched
Start of the error code
Error code
Error code argument
Error type
Remedy
- Check power supply for overvoltage or
undervoltage peaks
- Implement EMC measures
- If a K-Bus error is present, it can be
localised by a restart of the coupler (by
switching it off and then on again)
- Set manufacturer's setting with the KS2000
- Connect fewer Bus Terminals; too many
entries in the table for the programmed
configuration
- Software update required for the coupler
-
Check
programmed
correctness
(Bus
- Incorrect table entry / Bus Coupler
- No Bus Terminal connected; attach Bus
Terminals.
- 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.
- Check whether the n+1 Bus Terminal is
correctly connected; replace if necessary.
– Check whether the Bus End Terminal 9010
is connected.
register
Exchange Bus Terminals
Transmit program to the BC7300 again
th
Check the n
Bus Terminal. If a new Bus
Terminal is to be inserted, delete the boot
project (manufacturer's setting)
- Start the coupler again, and if the error
occurs again then exchange the Bus Terminal
- Start the coupler again, and if the error
occurs again after this, use the KS2000
software to set manufacturer's settings
- Start the coupler again, and if the error
occurs again after this, use the KS2000
software to set manufacturer's settings
Basic Principles
Error location
configuration
for
17

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