10 Troubleshooting
(continued)
10-4
C232-302-401/402/403/404-603 / C232/EN M/A23
SFMON: Undef. operat. code
093 010
Undefined operation code, i.e. software error.
1st device reaction / 2nd device reaction: Warm restart / Device blocking
'Warning' output relay: Yes / Yes
'Blocked/faulty' output relay: Yes / Yes
SFMON: Invalid arithm. op.
093 011
Invalid arithmetic operation, i.e. software error.
1st device reaction / 2nd device reaction: Warm restart / Device blocking
'Warning' output relay: Yes / Yes
'Blocked/faulty' output relay: Yes / Yes
SFMON: Undefined interrupt
093 012
Undefined interrupt, i.e. software error.
1st device reaction / 2nd device reaction: Warm restart / Device blocking
'Warning' output relay: Yes / Yes
'Blocked/faulty' output relay: Yes / Yes
SFMON: Exception oper.syst.
093 013
Interrupt of the operating system.
1st device reaction / 2nd device reaction: Warm restart / Device blocking
'Warning' output relay: Yes / Yes
'Blocked/faulty' output relay: Yes / Yes
SFMON: Data acquis. failure
090 021
Watchdog is monitoring the periodic start of protection routines. It has
detected an error.
1st device reaction / 2nd device reaction: Warm restart / Device blocking
'Warning' output relay: Yes / Yes
'Blocked/faulty' output relay: Yes / Yes
SFMON: Checksum error param
090 003
A checksum error involving the parameters in the memory (NOVRAM) has
been detected.
1st device reaction / 2nd device reaction: Warm restart / Device blocking
'Warning' output relay: Yes / Yes
'Blocked/faulty' output relay: Yes / Yes
SFMON: Clock sync. error
093 041
In 10 consecutive clock synchronization telegrams, the difference between
the time of day given in the telegram and that of the hardware clock is
greater than 10 ms.
1st device reaction / 2nd device reaction: – / –
'Warning' output relay: Yes / Yes
'Blocked/faulty' output relay: – / –
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