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Data Industrial 

Series 340LW  Owner’s 

Manual

10

Communications Status 

Object #4

(Object Type #1)

Mandatory NVs

nvo11CommStatus

SNVT_count

nv1

Summary of Contents for 340LW Series

Page 1: ...tal are available The Series 340LW Transmitter features three LED s to verify input and output signals The LONWORKS communications protocol allows the Series 340LW to be assigned to any one of 255 addresses on a single 2 wire buss Outputs may include raw data such as flow rate and temperature of either thermistor or computed or stored data such as energy rate energy total flow total or temperature...

Page 2: ...d attachment of the programming cable The unit generates very little heat so no consideration need be given to cooling or ventilation Surface Mount Installation The 340LW may be mounted to the surface of any panel using double sided adhesive tape or by attaching fasteners through the holes in the mounting flanges of the unit Din rail Mounting Optional clips snap onto the mounting flanges allowing ...

Page 3: ...40LWs a DC power supply with appropriate output capability should be used to prevent this situation For instance 16 340LWs will require 16 x 70mA 1120mA A 1 5 Amp 12 24 Volt DC power supply would handle such a load When operating a 340LW from AC power one side of the AC voltage source should be grounded to earth ground This grounded AC source side should be connected to the 340LW ACC DC power inpu...

Page 4: ...Sensor Input Power Out terminal supplies nominal 12VDC excitation voltage for 3 wire sensors Connect sensor signal and sensor signal wires to transmitter terminals Temperature Element Wiring The Data Industrial thermistors are not polarity sensitive Connect thermistor closest to the flow sensor to Series 340 terminal block marked TEMP 1 and the other thermistor wires to Series 340 terminal marked ...

Page 5: ...nications cable to the socket labeled COMM PORT taking care to properly align the tab on the plug and socket to maintain polarity Connect the DB9 connector of the Data Industrial A301 communications cable to a PC com port that has the 340 software installed 3 Move the Protocol Switch to the Comm Mode 4 Connect the Series 340 transmitter to a power supply 4 Open the interface software and select th...

Page 6: ...roviding the greatest degree of smoothing See the Dialog Box below 6 Program using diagram below as a reference Step 1 see note 1 Select the flow sensor type sine or pulse and enter the k and offset Step 4 Select the desired flow rate and total units here Step 7 Press send to transmit calibration data to the 340 Step 5 Select the desired energy rate and total units here Step 2 Select the desired t...

Page 7: ...et to ten second updates for each outgoing measurement network variable can be modified via LonMaker Browser 4 internal measurement readings are updated every ten seconds this update rate is not changeable 5 to reset total send the following to nvi00Request in the LonMaker Browser 1 RQ_OVERRIDE 2 RQ_OVERRIDE either of the above will reset both flow total and energy total Object 0 Node Object Objec...

Page 8: ...uthentication to prevent tampering Node Object 0 Object Type 0 nvi00Request SNVT_obj_request nvo00Status SNVT_obj_request Mandatory NVs nv1 nv2 Flow Object 1 Object Type 1 Mandatory NVs nvo01FlowRate SNVT_flow_f nv1 Optional Configuration Properties nc22 nciFlRtMaxSendT SNVT_elapsed_tm nvo02FlowTot_f SNVT_vol_f nv2 nc22 nciFlTotFMaxSendT SNVT_elapsed_tm nvo03FlowTot_k SNVT_vol_kilo nv3 nc22 nciFlT...

Page 9: ...SNVT_elapsed_tm nvo06EnergyTot_k SNVT_btu_kilo nv3 nvo07EnergyTot_M SNVT_btu_mega nv4 nciEnTotKMaxSendT SNVT_elapsed_tm nc22 nciEnTotMMaxSendT SNVT_elapsed_tm nc22 nc22 Temperature Object 3 Object Type 1 Mandatory NVs nvo08Temp1 SNVT_temp_f nv1 Optional Configuration Properties nc22 nciT1MaxSendT SNVT_elapsed_tm nvo10DeltaT SNVT_temp_f nv1 nvo09Temp2 SNVT_temp_f nv3 nv2 nc22 nciT2MaxSendT SNVT_ela...

Page 10: ...Data Industrial Series 340LW Owner s Manual 10 Communications Status Object 4 Object Type 1 Mandatory NVs nvo11CommStatus SNVT_count nv1 ...

Page 11: ... 35V DC or AC peak Frequency 0 10kHz Temperature Sensor Input 2 required 10 kΩ thermistor 2 wire type II 10 kΩ 25 C Operating Temperature 29 C to 70 C 20 F to 158 F Storage Temperature 40 C to 85 C 40 F to 185 F Weight 4 8 oz with headers installed SENSOR CALIBRATION Data Industrial Use K and offset provided in sensor owner s manual Other Sensors Check with factory UNITS OF MEASURE Measurement Out...

Page 12: ...sion n a Temperature Units F Sensor Type Pulse K 1 offset 0 Flow Rate Units gpm Flow Total Units gallons Energy Rate Units kBtu hr Energy Total Units Btu Energy Calculation absolute Flow Filter 0 Energy Filter 0 Scaled Pulse Output Units energy Scaled Pulse Output Units Per Pulse 1 Scaled Pulse Output Pulse Width 100 ...

Page 13: ...ller may at its sole option instruct Buyer to ship subject part postage prepaid to the Seller at above address or authorize a representative to inspect the part on site Seller will at its sole option repair or replace any defective product covered by this warranty If Buyer makes repairs or alterations to any product or part covered by this warranty without Sellers prior written approval this warra...

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