88 •
Fieldbus coupler/controller
Review
L
ON
W
ORKS
®
I/O-LED
Meaning
Trouble shooting
green
Data cycle on the internal bus
off
No data cycle on the internal bus
red
Coupler hardware defective
Change the controller
red
blinks
a) When starting: internal bus is initialized
b) During operation: general internal bus fault
Evaluate the fault signal (fault code
and fault argument)
red
blinks cyclically
Fault message during internal bus reset and
internal fault.
Evaluate the fault signal (fault code
and fault argument)
3.2.9.4 Fault message via the blink code of the I/O LED
Fault argument
Fault description
Trouble shooting
Fault code 1: Hardware and configuration fault
0
EEPROM check sum fault / check sum
fault in parameter area of the flash
memory
Change the fieldbus coupler
1
Overflow of the internal buffer memory
for the inline code
Change the fieldbus coupler
2
Unknown data type
Change the fieldbus coupler
3
Module type of the flash program
memory could not be determined / is
incorrect
Change the fieldbus coupler
4
Fault during writing in the flash mem-
ory
Change the fieldbus coupler
5
Fault when deleting the FLASH mem-
ory
Change the fieldbus coupler
6
Changed I/O module configuration
found after AUTORESET
Change the fieldbus coupler
7
Fault when writing in the serial
EEPROM
8 Invalid
firmware
9
Checksum error serial EPROM
10
Initial error serial EPROM
11
Read error serial EPROM
12
Timeout error serial EPROM
Fault code 2: Fault in programmed configuration
n* (n<0, n>65)
Incorrect table entry
Change the entry in the configuration for
I/O module n.
Fehlercode 3: Kommandofehler Klemmenbus
0
I/O module(s) has (have) identified
internal bus command as incorrect.
Determine where the module bus has been
interrupted by removing the fieldbus cable.
Plug the end module in the middle of the
node. Switch the coupler off and on again.
If the I/O LED keeps blinking, displace the
end module anew. If there is only one
module left which is connected to the
coupler and if the I/O LED lights up, either
the module or the coupler is defective.
Change the defective component.
Fault code 4: Internal bus data fault
n* (n<0, n>65)
Interruption after the nth module
Replace the nth module within the node
Fault code 5: Register communication fault
n* (n<0, n>65)
Module bus fault during register com-
munication
Replace the nth module within the node
Fault code 6: Fieldbus specific fault
Fault code 6 is not implemented
Fault code 7: I/O module not supported
n*
I/O module not supported at position n
Fehlercode 8: unbenutzt
0
Fault code 8 is not used.
Fault code 9: CPU TRAP error