Siemens 9810 Series, User Manual, Page: 77 / 218

Inputs / outputs
Digital input signal
State output
ON
OFF
ON
OFF
Trigger output
(
Input Mode = PULSE)
KYZ mode
If you set Input Mode to KYZ, a pulse is generated at the Trigger output for each
change of state transition, i.e. from OFF-to-ON and from ON-to-OFF transitions.
Digital input signal
State output
ON
OFF
ON
OFF
Trigger output
(
Input Mode = KYZ)
A/C mode
If you set Input Mode to A/C, the digital input port is configured to detect the
presence of an A/C waveform. The next illustration shows how a digital input can
be used to monitor the operation of a fan.
IRIG-B time synchronization
You can use a digital input to synchronize the meter time to an IRIG-B time
source.
You can connect an IRIG-B time source to one of meter’s digital inputs for IRIG-B
time synchronization; for improved accuracy use the digital inputs on the meter
base. For IRIG-B time synchronization, you must configure both the meter’s digital
input and the meter’s clock.
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