ONICON System-10 N2 - Manual (Page 12)

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System-10-N2 BTU Meter Installation and Operation Guide 05/14 - 0655-5 / 18322
Page 12
SECTION 2.0: POINT FILE (.ddl)
2.1 ddl OR POINT FILE
The System-10 BTU Meter operates in one of three operating modes: single, dual or bi-directional.
The dual and bi-directional modes utilize the same .ddl files. The tables below contain point
information for each of the operating modes.
The .ddl file contains the information that identifies the device to the N2 supervisory controller.
It also specifies the variables that are available to be transmitted to and from the device on the
network.
The tables below contains .ddl file information
2.1.1 Single Mode Point Information
In single mode operation, only one register accumulates energy and one register
accumulates volume.
NPT
1
NPA
2
UNITS POINT DESCRIPTION RANGE/VALUE
AI 1 Selectable
(See Energy Rate
Table)
Energy Rate 0 - 999,999
AI 2 Selectable
(See Volume Rate
Table)
Volume Rate 0 - 999,999
AI 3 Deg F Supply Temperature 0.0 Deg F - 500.0 Deg F
AI 4 Deg F Return Temperature 0.0 Deg F - 500.0 Deg F
BI 1 None Dual Mode Status Indicator
- Heating (supply > return)
- Cooling (supply < return)
OR
- Forward flow
- Reverse flow
(Refer to Section 3.3.3 of
System-10 manual for flow
direction information.)
0 - Heating
1 - Cooling
0 - Forward
1 - Reverse
ADF 1 Selectable
(See Energy Total
Table)
Mode 1 Energy Total 0 – 999,999
ADF 2 Selectable
(See Volume Total
Table)
Mode 1 Volume Total 0 – 999,999
ADF 5 User Defined Auxiliary Pulse Input Sum (Di3) 0 – 999,999
BO 1 None Reset (Zero)
Energy Total, ADF-1
OVERRIDE
Binary Output,
Object 1 - ON