D1 Installation - Barnett Engineering ProTalk LINK Operating Manual

D1 INSTALLATION

5. D1 INSTALLATION
STATUS
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The D1 module provides a total of 16 digital inputs that can be
independently programmed to operate as one of five different types:
 Standard digital
 Watchdog timer
 Interval timer
 Totalizer
 Accumulator
Each input can be programmed to accept three different signal level
formats:
 Open / Ground
 Open / +Voltage between +5 and +30 VDC
 Ground /+Voltage between +5 and +30 VDC
Clear inputs are used to reset the value of a totalizer or accumulator and
are always associated with a specific digital input. Clear inputs 1 through
4 work with digital inputs 1 through 4 respectively; totalizers or
accumulators derived from other inputs can be reset using DTMF only.
The signal format for each clear input is the same as its associated digital
input. If the format is configured for Ground/+Voltage, the module can be
programmed to generate an alarm when the input is open instead of in
either of the expected states. This alarm can be selected as either major or
minor and is reported for the module and not for a specific input.
ALARM
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INPUT
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Figure 13 D1 Module Front Panel
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CLEAR
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