Pulse-Counting Input Parameters; Configuration Of A Pulse Counting Input - Honeywell CNI2 Operating And Installation Manual

CNI2 Operating and Installation Guide

Pulse-Counting Input Parameters

Configuration of a Pulse Counting Input

Select "Pulse-Counting Input" from the "Line Type" pull-down list.
You can give this input a Description of 15 characters or less. This is for your records only and
is not reported to the data collection system.
If the input is a normally-open switch then select Form-A. If the input is a normally-closed
switch then select Form-B. If you are combining Lines-5 & 6 together to create a KYZ input,
then select Form-C (Y-normally open) or Form-C (Z-normally closed). If you select Form-C for
one line then the next line will automatically be assigned as the other Form-C input and will
inherit the partner's settings. Allowed Form-C pairs are Lines-1&2, 9&10 and 11&12.Line-5
settings.
The "Debounce" setting, in combination with the "Sample Rates" setting on the OPTIONS
screen determines how long the switch needs to be closed or open before being considered a
"real" pulse event. Debouncing and sample rates are discussed in more detail later in this
document.
The "Scaling Factor" is not currently supported.
The CNI2 has the capacity to save a total of 30,000 pulse-counting records before it starts to
overwrite the oldest records. These are divided equally between all active pulse-counting
channels. If only one channel is used for pulse-counting then all 30,000 records will be used for
that channel. If three pulse-counting channels are active then each channel is allocated 1/3 of
the memory, or 10,000 records.
67