S P T T T T
d d
= + − + −( ) ( )
4 3 6 5
GUID-2940B36E-3A6C-44E4-BD39-1B117E168829 V2 EN (Equation 80)
The sampling latency S
d
is calculated for each telegram on both ends. The
algorithm assumes that the one-way propagation delay P
d
is equal for both directions.
The echo method without GPS can be used in telecommunication transmission
networks as long as delay symmetry exists, that is, the sending and receiving
delays are equal.
6.3.6 Signals
Table 506: PCSRTPC Output signals
Name Type Description
OK BOOLEAN Protection communication ok
WARNING BOOLEAN Protection communication warning
ALARM BOOLEAN Protection communication alarm
COMM BOOLEAN Communication detected, active when data is
received
6.3.7 Settings
Table 507: PCSRTPC Non group settings
Parameter
Values (Range) Unit Step Default Description
Reset delay time 100...300000 ms 10 1000 Reset delay time from alarm and
warning into ok state
Alarm count 0...99999 0 Set new alarm count value
Warning count 0...99999 0 Set new warning count value
6.3.8 Monitored data
Table 508: PCSRTPC Monitored data
Name
Type Values (Range) Unit Description
HEALTH Enum 1=Ok
2=Warning
3=Alarm
-2=Waiting
Communication link
health
ALARM_CNT INT32 0...99999 Number of alarms
detected
WARN_CNT INT32 0...99999 Number of warnings
detected
SMPL_LATENCY FLOAT32 0.000...99.999 ms Measured sample
latency
PROPAGTN_DLY FLOAT32 0.000...99.999 ms Measured propagation
delay
Table continues on next page
Section 6 1YHT530004D05 D
Supervision functions
592 615 series
Technical Manual
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