Onicon System-10 BTU Meter Bedienungsanleitung
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699
System-10 BTU Meter
Johnson Controls Metasys®N2 Network Interface Installation Guide
Johnson Controls
Metasys®N2
0655-6 / 18322
ON
I
CON
Flow and Energy Measurement
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-N2 BTU Meter Installation and Operation Guide 09/15 - 0655-6 / 18322 Page 2
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-N2 BTU Meter Installation and Operation Guide 09/15 - 0655-6 / 18322 Page 3
TABLE OF CONTENTS
1.0 INTRODUCTION ..................................................................................................5
1.1 PURPOSE OF THIS GUIDE .......................................................................5
1.2 TYPICAL SYSTEM-10 NETWORK INTERFACE MODULE.....................5
1.3 SPECIFICATIONS ......................................................................................5
1.4 NETWORK SIGNAL CONNECTIONS.......................................................6
1.4.1 RS485...............................................................................................6
1.4.2 Optional Network Interface with
Isolated Digital Pulse Input (Di3) ...................................................7
1.5 RS485 BIASING AND TERMINATION...................................................10
1.6 NETWORK ADDRESSING.......................................................................10
1.6.1 Changing the Device Address.......................................................10
2.0 POINT FILE (.ddl)...............................................................................................12
2.1 .ddl OR POINT INFORMATION .............................................................12
2.1.1 Single Mode Point Information ....................................................12
2.1.2 Dual or Bi-Directional Mode Point Information ..........................13
2.1.3 Supplementary Tables ..................................................................14
2.1.4 Sample .ddl Files ..........................................................................17
3.0 NETWORK TROUBLESHOOTING TIPS ...........................................................19
3.1 TROUBLESHOOTING .............................................................................19
APPENDIX
A-1 SYSTEM-10 BTU METER COMPUTER BOARD
A-2 SYSTEM-10 BTU METER N2 BOARD
A-3 SYSTEM-10 BTU METER N2 BOARD with Optional Digital Input Pulse (Di3)
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-N2 BTU Meter Installation and Operation Guide 09/15 - 0655-6 / 18322 Page 4
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-N2 BTU Meter Installation and Operation Guide 09/15 - 0655-6 / 18322 Page 5
SECTION 1: INTRODUCTION
1.1 PURPOSE OF THIS GUIDE
The purpose of this guide is to provide installation and commissioning procedures and basic
installation and operating instructions for the ONICON System-10-N2 serial interface.
1.2 TYPICAL SYSTEM-10 NETWORK INTERFACE MODULE
ONICON’s System-10 is a true heat (Btu) computer which accepts data from several sensors,
performs a series of computations with that data, and displays and/or transmits the results as an
indication of the amount of heat (Btu’s) being transferred per unit time or as a totalized amount.
It can also be provided with an optional Metasys®N2 serial interface to communicate data to the
building control network.
1.3 SPECIFICATIONS
METASYS®N2 NETWORK INTERFACE
N2 RS485
Transceiver: 2-wire, half-duplex
Device address range: 1 – 255 (Default: 017)
Baud rate: 9600
Termination: none
Biasing: none
24 VAC Input
Metasys®N2 Communications
to Johnson Controls System
Heat Exchanger
Return
Supply
SYSTEM-10
BTU METER
Return Temp
Sensor
Supply Temp
Sensor
ONICON insertion
flow meter
(purchased separately)
SCROLL RESET PROGRAM
BTU X 10,000
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-N2 BTU Meter Installation and Operation Guide 09/15 - 0655-6 / 18322 Page 6
1.4 NETWORK SIGNAL CONNECTIONS
1.4.1 RS485
N2 RS485, 2-wire (half-duplex) serial output connections are connected to
terminal as shown. Do not exceed 4.4 in-lb (0.5 Nm) of torque when tightening.
CAUTION
Only qualied service personnel should make connections between the System-10-N2 BTU Meter
and the user’s external equipment. ONICON assumes no responsibility for damage caused to the
external equipment as a result of an improper installation.
!
CAUTION
Incoming and outgoing RS485 cable shield wires should be connected together, but must not be
connected to the System-10.
!
N2 (-)
N2 (+)
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-N2 BTU Meter Installation and Operation Guide 09/15 - 0655-6 / 18322 Page 7
1.4.2 Optional Network Interface With Isolated Digital Pulse Input (Di3)
The System-10 BTU Meter can be provided with an auxiliary pulse input for totalizing
pulse outputs from external devices such as water or gas meters. Pulses are accumulated
in an internal register, and the totalized value is available on the network. This register
can be zeroed via the network. The maximum register total is 9,999,999. The register will
rollover to zero when this value is exceeded.
If the auxiliary pulse input option was ordered at the same time the Btu meter was
ordered, it will arrive fully congured and ready to use. If it was ordered after the Btu
meter was delivered and is being installed as a eld upgrade, it may be necessary to
congure the pulse input. The information required to congure the input is provided
below and on the following pages:
The input pulse must meet the following criteria:
1. Frequency input range, 50 Hz maximum
2. 10 millisecond minimum pulse duration
Input Pulse Denition:
In order to congure the communications card auxiliary pulse input, you must rst
determine which type of pulse your meter produces. The allowable types of input
pulses are described on the following pages. Based on the type of pulse, set the selector
switch (S1) on the communications circuit board (Fig. 1) to the correct setting.
Fig. 1 AUX. PULSE INPUT (Di3)
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-N2 BTU Meter Installation and Operation Guide 09/15 - 0655-6 / 18322 Page 8
Powered Pulse:
This type of output refers to a pulse which has an associated voltage with it (see Fig. 2).
Set the selector switch, S1 to Pwrd Pulse. The allowable voltage range is 5-24 VDC. The
input impedance is set at the factory to be 11 KOHM via the impedance selector jumper
(J1, see Fig. 1). A lower impedance, 3 KOHM can be selected if required by the instrument
providing the pulse output. Consult the instrument manufacturer or ONICON if you are
uncertain as to the proper jumper selection.
Fig. 2
Open Collector (Sourcing):
This type of output refers to an open Collector Switch congured for a sourcing function
(see Fig. 3). Set the selector switch, S1 to SRC. The switch must be rated for at least 20mA
at 20VDC.
Fig. 3
Di3 In (+)
Di3 In (-)
Di3 In (+)
Di3 In (-)
ONICON BTU Meter
ONICON BTU Meter
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-N2 BTU Meter Installation and Operation Guide 09/15 - 0655-6 / 18322 Page 9
Open Collector Sinking or Dry Contact:
This type of output refers to an open collector switch congured in a current sinking
arrangement or a dry contact switch (see Fig. 4 and 5). Set the selector switch, S1 to Sink.
In either case, the switch must be rated for at least 20mA at 20 VDC.
Fig. 4
Fig. 5
Di3 In (+)
Di3 In (-)
Di3 In (+)
Di3 In (-)
ONICON BTU Meter
ONICON BTU Meter
11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax +1 (727) 442-5699 • [email protected]
System-10-N2 BTU Meter Installation and Operation Guide 09/15 - 0655-6 / 18322 Page 10
1.5 RS485 BIASING AND TERMINATION
The ONICON System-10-N2 does not provide biasing voltage or termination to the RS485
network. A 120Wtermination resistor should be used when the meter is installed at the end of
the line.
1.6 NETWORK ADDRESSING
Before the System-10 can communicate on the N2 network, the appropriate device address must
be programmed into the meter. The N2 network address for ONICON System-10 BTU Meters may
be set to any address from 001 to 255. This address is set at the Btu meter. Section 1.6.1 details
the procedure for changing this address.
1.6.1 Changing the Device Address
Every ONICON System-10 is individually programmed at the factory with application
specic data provided by the customer during the ordering process, and this may include
network addressing information. If the device address information was provided, the
meter will be programmed with that number. If no address is provided, ONICON Btu
meters are programmed with a default address of 017. The address may be changed at
the System-10 using the procedure outlined in the table below.
STEP ACTION REACTION COMMENT
0Obtain a device address from the
network administrator.
The device address is
a three digit number
between 001 - 255,
excluding zero.
1
With the meter running, open
the front panel and locate switch
DEV ADD/PROG ENAB. Press
DEV ADD/PROG ENAB and then
release it.
None
The DEV ADD/PROG ENAB
is located on the heat
computer board. (See
appendix page A-1.)
2 Close the front panel.
3
Press the PROGRAM button. (If
you do not press the PROGRAM
button, the meter will revert to the
RUN mode after 5 minutes.)
The System-10 changes
to PROGRAM mode and
the DEVICE ID page will
appear with the rst digit
of the address ashing.
The PROGRAM button is on
the front panel.
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