9 Appendix
9.1 Item Code Types
There are two basic item code types used in the CNI4 — Direct-read and Configuration. Direct-read items
are mainly used to store information or to accumulate readings. Except during the initial installation,
these items are normally just read periodically to obtain the accumulated information. However, if
needed, these values may be changed by directly typing in new information from the keyboard.
Configuration items are used to configure the CNI4 device.
9.1.1 Volume Items
Ch Item #
Item Name
Description
002
910
Ch1 Accumulated Volume
Ch2 Accumulated Volume
Totalized Accumulated Volume based on the
volume signal connected to its input. The totalized
value is scaled to the volume unit selected at item
092 for Ch1 and item 458 for Ch2. The number of
digits is defined by item 097 for both.
226
911
Ch1 Inc Accumulated Volume
Ch2 Inc Accumulated Volume
The Incremental Accumulated Volumes are the
same as Accumulated Volume (items 002 and
910) but is initialized (re zeroed) at the beginning
of every Log Interval, (Hourly or Daily) as defined
by item 202. If the CNI4 is accessed via a serial
connection, this item will display the current value
for that point in time.
098
912
Ch1 Input Pulse Value
Ch2 Input Pulse Value
Select:
0 - 1 CF
1 - 5 CF
2 - 10 CF (Default)
3 - 100 CF
4 - 1000 CF
5 - .1m3
6 - 1 m3
7 - 10 m3
8 - 100 m3
9 - 1000 m3
10 - 10000 CF
12 - 50 CF
13 - 500 CF
Use codes (0-13) to select the value for each
pulse received at Ch1 or Ch2 inputs. This selection
must agree with the gas meter drive rate or meter
pulse value when connected to a meter. When
connected to a volume corrector, the value must
agree with the value assigned to the corrector’s
output pulse.
114
913
Ch1 Input Pulse Scaling
Ch2 Input Pulse Scaling
Default = 1.0000
Additional scaling for item 098 and 912 (Input
Pulse Value), if required. Usually needed when the
volume input is a value other than 0.1, 1, 5, 10,
100, or 1000.
000
908
000 - Ch1 FixedFactor Volume
098 - Ch2 FixedFactor Volume
Totalized Accumulated Volume for Ch1 and Ch2,
multiplied by a user-assigned scaling factor
provided by item 044 for Ch1 and item 440 for
Ch2. The totalized value is then scaled to the
volume unit selected at item 090 for Ch1 and item
457 for Ch2. The number of digits is defined by
9 Appendix
Honeywell
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