UMG 96-PA / UMG 96-PA-MID / UMG 96-PA-MID+
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13.15.2 External synchronization
An external synchronization for the calculation of
the 3 highest average values is performed:
·via digital input 3 (e.g. via a pulse generator) or
·via a Modbus command.
External synchronization scenarios:
"No pulse despite setting"
If there is no pulse via digital input 3 or a Modbus
command, the measured values are stored as
with an internal synchronization – but not only at
each full minute!
"One pulse"
If the device receives a pulse or a Modbus com-
mand once outside the capture time, the mea-
sured values added up to that point are reset for
the calculation of the average value and the time.
The time is redefined as a relative zero point and a
new calculation is performed!
Example:
The power increases with time. The values are
reset to 0 by the pulse (09:06:47) outside the
capture time. A new summation of the intermedi-
ate values begins from this point on. As no further
impulse is received, the average value is calculat-
ed after the set time (time base).
Fig.
Principle of synchronization with
“No pulse despite setting"
Capture time Capture time
Capture time Capture time
Time base
Time base
Time base
Pulse progression of digital input 3
Synchronization principle
Example
Maximum
value
Value Time stamp
Effective current
L1
Drag indicator 1 3.51 A
09:13:07
Effective current
L1
Drag indicator 2 2.52 A
09:08:07
Effective current
L1
Drag indicator 3 1.52 A
09:03:07
Fig.
Example of drag indicator storage with
time stamp (with set time base of 5 min)
Fig.
Principle of synchronization with
“One impulse outside the capture time"
Capture time Capture time Capture time Capture time
Time base
Time base
Time base
Pulse progression of digital input 3
Synchronization principle
Resynchronization
Relative
Zero point
Time base
Time base
Time base
Example
Maximum value
Value
Time stamp
Active power
L1
Drag indicator
Consumption 1 396.73 W
09:18:47
Active power
L1
Drag indicator
Consumption 2 207.34 W
09:13:47
Active power
L1
Drag indicator
Consumption 3 80.59 W
09:08:47
Fig.
Example of drag indicator storage with
time stamp (with set time base of 5 min)
