Item Code Types; Item Code List - Honeywell CNI4 Operating And Installation Manual

9 Appendix

9.4 Item Code Types

There are two basic types of item codes used in the CNI4, Direct-read and Configuration. The Direct-read
items are mainly used to store information or to accumulate readings. Except during the initial
installation, these types of 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 or customize the CNI4 to pro- vide specific functions or
features. Usually, these items require choosing an option from a list. When using MasterLink (version
3.50 or higher), the available options are presented as text messages. However, if using an older version,
the Raw Item Access feature must be used to send a numeric codes to the items that need changed.

9.4.1 Item Code List

The Items which make up the operating parameters, codes, alarms, voltage levels, and other information
relative to operation or configuration of the CNI4 are listed below. Item code information can be changed
using MasterLink software.
Pulse Accumulator Item Reference
Ch Item #
Volume Items
Ch1 Accumulated
002 Volume
910 Ch2 Accumulated
Volume
Ch1 Inc Accumulated
226 Volume
911 Ch2 Inc Accumulated
Volume
Ch1 Input Pulse Value
Ch2 Input Pulse Value
Select:
098
0 - 1 CF
912
1 - 5 CF
2 - 10 CF (Default)
3 - 100 CF
Item Name
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
The Incremental Accumulated Volumes are the same as
Accumulated Volume (items 002 and 910) but is initialized
(rezeroed) at the beginning of every Log Interval, (Hourly or
Daily) as definded by item 202. If the CNI4 is accessed via a
serial connection, this item will display the current value for
that point in time.
Codes (0-13) to select the value for each pulse received at the
Ch1 or Ch2 inputs. This selection should agree with the gas
meter drive rate or meter pulse value when connected to a
meter. When connected to a volume corrector, the value
should agree to the value assigned to the corrector's output
pulse.
Description
Honeywell
| 32