en04000520_ansi.vsd
Power supply fault
Watchdog
TX overflow
Master resp.
Supply fault
ReBoot I/O
Internal Fail (CPU)
Power supply
module
I/O nodes
CEM
AND
Fault
Fault
Fault
INTERNAL
FAIL
I/O nodes = BIM, BOM, IOM
xxxx = Inverted signal
ANSI04000520 V1 EN
Figure 21: Hardware self-supervision, potential-free alarm contact
TIMESYNCHERROR
e.g. BIM 1 Error
IO fail
IO stopped
IO started
OR
Set
Reset
OR
e.g. IOM2 Error
e.g. IO (n) Error
OR
OR
Internal
FAIL
Set
Reset
LON ERROR
Watchdog
RTE fatal error
RTE Appl-fail
RTE OK
IEC61850 not ready
RTCERROR
FTF fatal error
RTC OK
TIMESYNCHERROR
Time reset
SYNCH OK
Settings changed
NUMFAIL
Set
Reset
OR
Internal
WARN
Set
Reset
OR
NUMWARNING
OR
1 second pulse
SETCHGD
RTCERROR
en04000519-1.vsd
IEC04000519 V2 EN
Figure 22: Software self-supervision, IES (IntErrorSign) function block
1MRK505222-UUS C Section 4
Basic IED functions
79
Technical reference manual