Onicon System-10 N2 Manual do Utilizador descarregar pdf (Página 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 les. The tables below contain point

information for each of the operating modes.

The .ddl le contains the information that identies the device to the N2 supervisory controller.

It also species the variables that are available to be transmitted to and from the device on the

network.

The tables below contains .ddl le information

2.1.1 Single Mode Point Information

In single mode operation, only one register accumulates energy and one register

accumulates volume.

NPT

NPA

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)

- Forward ow

- Reverse ow

(Refer to Section 3.3.3 of

System-10 manual for ow

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 Dened Auxiliary Pulse Input Sum (Di3) 0 – 999,999

BO 1

None Reset (Zero)

Energy Total, ADF-1

OVERRIDE

Binary Output,

Object 1 - ON

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 23 24

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