Description
2.4 Digital inputs and outputs
28
PAC3120 and PAC3220
Equipment Manual, 10/2019, L1V30425208F-01
Figure 2-5 Block diagram: Digital outputs
Wiring
Both digital outputs are passive and implemented exclusively as switches.
Figure 2-6 Block diagram: Digital outputs
Implementation of the pulse function corresponds to the IEC 62053-31 standard.
Pulse length, turn-off time
Figure 2-7 Pulse length and turn-off time
● Pulse length:
Time for which the signal at the digital output is "high". The minimum pulse length is
30 ms and the maximum 500 ms.
● Turn-off time:
Time for which the signal at the digital output is "low". The turn-off time depends on the
measured energy, for example, and can be days or months.
● Minimum turn-off time:
The minimum turn-off time corresponds to the programmed pulse length. 30 ms is the
absolute minimum.
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