Some signals are available from the INTERRSIG function block. The signals from
this function block are sent as events to the station level of the control system. The
signals from the INTERRSIG function block can also be connected to binary outputs
for signalization via output relays or they can be used as conditions for other functions
if required/desired.
Individual error signals from I/O modules can be obtained from respective module in
the Signal Matrix tool. Error signals from time synchronization can be obtained from
the time synchronization block TIME.
20.5.5.1 Internal signals
Self supervision provides several status signals that give information about the
internal status of the IED. For this reason they are also called internal signals. These
internal signals , available on local HMI under Main menu/Diagnostics/IED status/
General, can be divided into two groups.
• Standard signals are always presented in the IED, see table
833.
• Hardware dependent internal signals are collected depending on the hardware
configuration, see table 834.
Table 833: Self-supervision's standard internal signals
Name of signal
Description Displayed on
local HMI as
Reasons for activation
FAIL Internal
Fail status
Internal fail This signal will be active if one or more of the
following internal signals are active;
LMDERROR, WATCHDOG, APPERROR,
RTEERROR, or any of the HW dependent
signals
WARNING
Internal
Warning
status
Internal
warning
This signal will be active if one or more of the
following internal signals are active;
RTCERROR, IEC61850ERROR,
TIMESYNCHERROR
RTCERROR
Real Time
Clock
status
Real time
clock
This signal will be active when there is a hardware
error with the real time clock.
TIMESYNCHERROR Time
Synchroni
zation
status
Time synch
This signal will be active when the source of the
time synchronization is lost, or when the time
system has to make a time reset.
RTEERROR
Runtime
Execution
Error
status
Runtime
execution
This signal will be active if the Runtime Engine
failed to do some actions with the application
threads. The actions can be loading of settings or
parameters for components, changing of setting
groups, loading or unloading of application
threads.
IEC61850ERROR
IEC
61850
Error
status
IEC61850
This signal will be active if the IEC 61850 stack
did not succeed in some actions like reading IEC
61850 configuration, startup, for example
DNP3
DNP3
error
status
DNP3
This signal will be active when DNP3 detects any
configuration error during startup.
Table continues on next page
Section 20 1MRK502052-UEN B
Basic IED functions
1100
Technical manual
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