90
•
Fieldbus controller 750-842
LED Display
Modular I/O System
ETHERNET TCP/IP
3.2.8.4
Fault message via blink code from the I/O-LED
Fault argument
Fault description
Fault code 1: Hardware and Configuration fault
0
EEPROM check sum fault / check sum fault in the parameter area of the flash memory
1
Overflow of the internal buffer memory for the inline code
2
Unknown data type
3
Module type of the flash program memory could not be determined / is incorrect
4
Fault when writing in the FLASH memory
5
Fault when deleting the FLASH memory
6
Changed I/O module configuration determined after AUTORESET
Fault code 2: Fault in programmed configuration
0
Incorrect table entry
Fault code 3: Internal bus command fault
0
No fault argument is put out.
Fault code 4: Internal bus data fault
0
Data fault on internal bus or
Internal bus interruption on controller
n* (n>0)
Internal bus interrupted after I/O module n
Fault code 5: Fault during register communication
n*
Internal bus fault during register communication after I/O module n
Fault code 6: Fieldbus specific errors
1
No answer from the BootP server
2
ETHERNET controller not recognized
3
Invalid MACID
4
TCP/IP initialization error
Fault code 7: I/O module is not supported
n*
I/O module at position n is not supported
Fault code 8: not used
0
Fault code 8 is not used.
Fault code 9: CPU-TRAP error
1
Illegal Opcode
2
Stack overflow
3
Stack underflow
4
NMI
* The number of blink pulses (n) indicates the position of the I/O module. I/O modules
without data are not counted (i.e. supply modules without diagnostics).
Example for a fault message
Fault: The 13th I/O module has been removed.
4.
The "I/O" LED starts the fault display with the first blink sequence (approx.
10 Hz).
5.
The second blink phase (approx. 1 Hz) follows the first pause. The "I/O"
LED blinks four times and thus signals the fault code 4 (internal bus data
fault).
6.
The third blink sequence follows the second pause. The "I/O ERR" LED
blinks twelve times. The fault argument 12 means that the internal bus is
interrupted after the 12
th
I/O module.