P
T T T T
d
=
− + −( ) ( )
2 1 5 4
2
GUID-0CB3B365-7081-43D4-90F5-91A8082522FE V2 EN (Equation 160)
S P T T T T
d d
= + − + −( ) ( )
4 3 6 5
GUID-2940B36E-3A6C-44E4-BD39-1B117E168829 V2 EN (Equation 161)
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.
6.4.6 Signals
Table 764: PCS Output signals
Name Type Description
OK BOOLEAN Protection communication ok
WARNING BOOLEAN Protection communication warning
ALARM BOOLEAN Protection communication alarm
COMM BOOLEAN Communication detected
6.4.7 Settings
Table 765: PCS Non group settings (Advanced)
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 1 0 Set new alarm count value
Warning count 0...99999 1 0 Set new warning count value
6.4.8 Monitored data
Table 766: PCS Monitored data
Name
Type Values (Range) Unit Description
Health Enum 1=Ok
2=Warning
3=Alarm
-2=Waiting
Communication link health
Alarm count INT32 0...99999 Number of alarms detected
WARN_CNT INT32 0...99999 Number of warnings detected
Table continues on next page
1MAC059074-MB A Section 6
Supervision functions
615 series ANSI 865
Technical Manual
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