ADLINK ND-6067 - Manual (Page 120)

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5.10 Overview of NuDAM-6080
ND-6080 is a counter / frequency input module. It has two 32-bit counter input
channels with built in programmable timer for frequency measurement and
supports both photo isolated and non-isolated input mode. The maximum
counting value is 4,294,967,295 for counter input channel and the
frequency-input range is from 1 Hz to 20 kHz. A programmable digital filter can
be enabled for both high and low level minimum signal width to reduce noise
spike. Besides, the programmable threshold for non-isolated input can further
reject noise on the input signal level.
The module provides the counter comparator or the alarm function. The alarm
limit of two counters can be set independently by programming. The alarm status
can be sent to digital output channels if this function is ON. The supervisor of a
factory can ‘see’ or ‘hear’ the alarm if the digital output channel control a real
alarm device. The two digital output channel can be set for general purpose used
if the alarm is disable. For example, connecting relay devices to DO channels,
the NuDAM-6080 can be used to control the high power devices.