Honeywell CNI2 - Pulse-Counting Input Parameters; Configuration of a Pulse Counting Input

CNI2
O
perating and Installation
Guide
67
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 charac
te
rs 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 togeth
er 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 F
orm
-
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 record
s. 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.