Diagnostic LEDs

Us

off: Bus Coupler has no voltage 24 V_DC

Up

off: No 24 V_DC power supply connected to the power contacts

K-bus RUN

on or flashing: K-bus running

K-bus ERR

flashing: (see error code)

WD ERR

on: Watchdog error

COM

on or flashing: communication with controller

ERROR

flashing: DHCP or BootP active. Waiting for an IP address

RTE

on: hard real-time with TC is switched on. No ADS communication is possible at the same time. All TCP, UPD and ICMP telegrams (e.g. ping) remain unanswered.

LINK/ACT

on: LINK present
flashing: LINK present and communication active

-

flashing continuously

EMC problems

• Check power supply for undervoltage or overvoltage peaks
• Implement EMC measures
• If a K-bus error is present, it can be localized by a restart of the coupler (by switching it off and then on again)

1 

0

EEPROM checksum error

Enter factory settings with the KS2000 configuration software

1

Code buffer overflow

Insert fewer Bus Terminals. Too many entries in the table for the programmed configuration

2

Unknown data type

Software update required for the Bus Coupler

2 

- 

Reserve

- 

3 

0

K-bus command error

• No Bus Terminal inserted
• 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 

0

K-bus data error, break behind the Bus Coupler

Check whether the n+1 Bus Terminal is correctly connected; replace if necessary.

n

Break behind Bus Terminal n

Check whether the Bus End Terminal KL9010 is connected.

5 

n

K-bus error in register communication with Bus Terminal n

Exchange the n^th bus terminal

6 

0

Error at initialization

Exchange Bus Coupler

1

Internal data error

Perform a hardware reset on the Bus Coupler (switch off and on again)

2

IP address already exists

Check the IP address; the coupler has already found its set IP address in the network

4

BootP invalid DIP switch setting

With BootP the DIP switches 1-8 must be all On or all Off

7 

0

Note: cycle time was exceeded

Warning: the set cycle time was exceeded. This indication (flashing LEDs) can only be cleared by booting the Bus Coupler again.
Remedy: increase the cycle time

9 

0

Checksum error in Flash program

Transmit program to the BC again

1

Incorrect or faulty library implemented

Remove the faulty library

10 

n

Bus Terminal n is not consistent with the configuration that existed when the boot project was created

Check the n^th Bus Terminal. The boot project must be deleted if the insertion of an n^th Bus Terminal is intentional

14 

n

n^th Bus Terminal has the wrong format

Start the Bus Coupler again, and if the error occurs again then exchange the Bus Terminal

15 

n

Number of Bus Terminals is no longer correct

Start the Bus Coupler again. If the error occurs again, restore the manufacturers setting using the KS2000 configuration software

16 

n

Length of the K-bus data is no longer correct

Start the Bus Coupler again. If the error occurs again, restore the manufacturers setting using the KS2000 configuration software