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MTS Sensors Level Plus LP Series, Interface Manual

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18

Modbus Interface Manual 

LP Series

Modbus

Register

Data

Address

Data

Description

‡

 

denotes duplicate 

register

Notes

Modbus

Register

Data

Address

Data

Description

‡

 

denotes duplicate 

register

Notes

30243

242

MASS Low Word ‡

30244

243

Temperature Cor-

rection Method High 

Word ‡

11, Page 19

30245

244

Temperature Cor-

rection Method Low 

Word ‡

30246

245

API Gravity High 

Word (x100) ‡

30247

246

API Gravity Low Word 

(x100) ‡

30248

247

Working Capacity 

High Word (x10) ‡

30249

248

Working Capacity 

Low Word (x10) ‡

30250

249

TEC High Word 

(x10000000) ‡

12, Page 19

30251

250

TEC Low Word 

(x10000000) ‡

30252

251

Density High Word 

(x100) ‡

13, Page 19

30253

252

Density Low Word 

(x100) ‡

30254

253

Reference Tempe-

rature High Word 

(x10) ‡

14, Page 19

30255

254

Reference Tempe-

rature Low Word 

(x10) ‡

30256

255

Volume Calculation 

Mode High Word ‡

15, Page 19

30257

256

Volume Calculation 

Mode Low Word ‡

30258

257

Sphere Radius High 

Word (x10) ‡

16, Page 19

30259

258

Sphere Radius Low 

Word (x10) ‡

30260

259

Sphere Offset High 

Word (x10) ‡

17, Page 19

30261

260

Sphere Offset Low 

Word (x10) ‡

30262

261

Average Interval High 

Word ‡

18, Page 19

30263

262

Average Interval Low 

Word ‡

30264

263

Alarm/Status High

Word ‡

19, Page 20

30265

264

Alarm/Status Low 

Word ‡

30266

265

VCF Calculation Error

Status ‡

20, Page 20

30267

266

Volume Calculation 

Error Status ‡

21, page 20

30268

267

Temperature 13 High 

Word (x10000)

30269

268

Temperature 13 Low 

Word (x10000)

30270

269

Temperature 14 High 

Word (x10000)

30271

270

Temperature 14 Low 

Word (x10000)

30272

271

Temperature 15 High 

Word (x10000)

30273

272

Temperature 15 Low 

Word (x10000)

30274

273

Temperature 16 High 

Word (x10000)

30275

274

Temperature 16 Low 

Word (x10000)

30276

275

Temperature 17 High 

Word (x10000)

Inactive

30277

276

Temperature 17 Low 

Word (x10000)

Inactive

30278

277

Temperature 18 High 

Word (x10000)

Inactive

30279

278

Temperature 18 Low 

Word (x10000)

Inactive

30280

279

Temperature 19 High 

Word (x10000)

Inactive

30281

280

Temperature 19 Low 

Word (x10000)

Inactive

30282

281

Temperature 20 High 

Word (x10000)

Inactive

30283

282

Temperature 20 Low 

Word (x10000)

Inactive

30284

283

Temperature 21 High 

Word (x10000)

Inactive

30285

284

Temperature 21 Low 

Word (x10000)

Inactive

30286

285

Temperature 22 High 

Word (x10000)

Inactive

30287

286

Temperature 22 Low 

Word (x10000)

Inactive

30288

287

Temperature 23 High 

Word (x10000)

Inactive

30289

288

Temperature 23 Low 

Word (x10000)

Inactive

30290

289

Temperature 24 High 

Word (x10000)

Inactive

30291

290

Temperature 24 Low 

Word (x10000)

Inactive

30292

291

Temperature 25 High 

Word (x10000)

Inactive

9.4 Modbus register maps 

(continued)

Summary of Contents for Level Plus LP Series

Page 1: ...Level Plus Modbus Interface Manual LP Series Magnetostrictive Liquid Level Transmitters with Temposonics Technology ...

Page 2: ...gram 7 6 3 Menu Structure 7 7 Alarms 7 8 Error Codes Faults 8 9 Modbus Interface 8 9 1 LP Dashboard 9 9 1 1 Installing LP Dashboard 9 9 1 2 Home Screen 9 9 1 3 Configuration 10 9 1 4 Signal Settings 10 9 1 5 Level Settings 10 9 1 6 Temperature Settings 11 9 1 7 Volume Settings 12 9 1 8 Flash Settings 12 9 1 9 Save Settings 13 9 2 Programming the Display 12 9 3 Modbus Function Codes 14 9 4 Modbus R...

Page 3: ... 800 633 7609 e mail levelplus mts com Germany General Tel 49 2351 9587 0 Fax 49 2351 56491 e mail info de mtssensors com http www mtssensors com Mailing and shipping address MTS Sensor Technologie GmbH Co KG Auf dem Schüffel 9 D 58513 Lüdenscheid Germany Technical support and applications Tel 49 2351 9587 0 e mail info de mtssensors com http www mtssensors com Japan General Tel 81 42 775 3838 Fax...

Page 4: ...ial two way communications system that serves as the base level network in a plant or factory automation environment Developed and administered by the fieldbus FOUNDATION G GOVI Gross Observed Volume of the Interface The total volume of the tank occupied by the interface liquid The GOVI is only given when mea suring two liquids and is calculated by subtracting the volume of the product from the to...

Page 5: ...ty measurement is given the allow able values are 32 F to 150 F 0 C to 66 C S Specific Gravity The density ratio of a liquid to the density of water at the same condi tions Sphere Radius The internal radius of the sphere that contains the liquid the value is used to calculate the volume along with the Sphere Offset Sphere Offset An offset value that accounts for additional volume in a sphere from ...

Page 6: ...k 7 Verify proper operation of product interface floats and or temperature 8 Turn off power to the transmitter 9 Remove data lines 10 Install the transmitter into the vessel see Operation Manual 11 Reconnect power and data lines 12 Calibrate current tank level using setup software optional 13 Verify communications with the host system 6 Display Menu All LP Series liquid level transmitters are ship...

Page 7: ...e display UNITs Unit of measurement for the MEASURED VARIABLE shown on the display TEMPERATURE Average temperature for the product in the tank Only shown if the level transmitter was purchased with temperature NOTIFICATIONS Four squares with letters Top left square will always be present indicating a D for DDA mode or a M for Modbus mode Top right square A will only show when there is an alarm Tog...

Page 8: ...t restored Contact Factory 118 DAC Fault 1 Cycle power to sensor If proper operation is not restored Contact Factory 119 DAC Fault 2 Cycle power to sensor If proper operation is not restored Contact Factory 8 Error Codes Faults 9 Modbus Interface Note Termination and biasing of RS 485 data lines are as follows Biasing Each LP Series transmitter uses a Fail Safe Slew Rate Limited RS 485 RS 422 Tran...

Page 9: ...me Screen will look as shown If the level transmitter does not include temperature measurement then the Home Screen will not show the middle panel for temperature If the level transmitter does not have volume measurement enabled then the Home Screen will not show the bottom panel The Home Screen can be accessed by pressing the three white bars on the top left The level panel on top shows the level...

Page 10: ...nging to OFF and cycling power User Configurable Reverse Measure Allows the end user to change the direction in which the MTS level transmitter counts The default setting is OFF and the level transmitter will reference the tip of the pipe hose and count up from the tip The ON setting will reference the head of the level transmitter and count up as it moves towards the tip Device Address The end us...

Page 11: ... value in the box then the alarm will become active Product Low Alarm Soft alarm that can be disabled or enabled by clicking the X and next to the box If the product level is less than the value in the box then the alarm will become active Interface High Alarm Soft alarm that can be disabled or enabled by clicking the X and next to the box If the interface level exceeds the value in the box then t...

Page 12: ... Mod correction method Density allows the user to input the measured density for mass calculations Calculation Mode allows the end user to select between using a strapping table and a sphere Default setting is Sphere Working Capacity allows the end user to enter the working capacity of the tank so ullage can be calculated Sphere Radius the radius of the sphere to be used for volume calculations Sp...

Page 13: ...entering the display is 27513 9 2 1 Data from Device Display Allows the user to select if the display shows Length Units or Volume Units Units Allows the user to change the selected Length Units Volume Units and or Temperature Units Address Allows the user to change the address of the level transmitter Default address is 247 Signal Strength Allows the user to view the strength of the return signal...

Page 14: ...ers Modbus 4800 BAUD or 9600 8 N 1 Reference Monitor Modbus RTU Variable BAUD Rate 8 E 1 The following Modbus function codes are supported Function 03 Read Holding Registers Function 04 Read Input Registers Function 06 Preset Single Register Function 08 Diagnostics Subfunction 00 Return Query Data Function 08 Diagnostics Subfunction 01 Restart Communications Option Function 08 Diagnostics Subfunct...

Page 15: ...tion 17 Report Slave ID The device responds to this request with the following data Slave address echoed Function 11H Byte count 05H Slave ID FFH Run indicator status FFH ON Additional data DMS Error check 16 bit CRC 8 bit LRC Modbus Exception Codes The following standard Modbus exceptions are implemented Error code 01 Illegal Function Reported when A function other than 03 04 06 08 16 or 17 is re...

Page 16: ...e 19 30028 0027 NSVP Low Word 30029 0028 MASS High Word 30030 0029 MASS Low Word Modbus Register Data Address Data Description denotes duplicate register Notes Modbus Register Data Address Data Description denotes duplicate register Notes 30031 0030 Temperature Cor rection Method High Word 11 Page 19 30032 0031 Temperature Cor rection Method Low Word 30033 0032 API Gravity High Word x 100 30034 00...

Page 17: ...Page 19 30207 206 Temperature 1 Low Word x10000 30208 207 Temperature 2 High Word x10000 30209 208 Temperature 2 Low Word x10000 30210 209 Temperature 3 High Word x10000 30211 210 Temperature 3 Low Word x10000 30212 211 Temperature 4 High Word x10000 30213 212 Temperature 4 Low Word x10000 30214 213 Temperature 5 High Word x10000 30215 214 Temperature 5 Low Word x10000 30216 215 Temperature 6 High...

Page 18: ... Alarm Status Low Word 30266 265 VCF Calculation Error Status 20 Page 20 30267 266 Volume Calculation Error Status 21 page 20 30268 267 Temperature 13 High Word x10000 30269 268 Temperature 13 Low Word x10000 30270 269 Temperature 14 High Word x10000 30271 270 Temperature 14 Low Word x10000 30272 271 Temperature 15 High Word x10000 30273 272 Temperature 15 Low Word x10000 30274 273 Temperature 16 ...

Page 19: ...08 310 1107 Reserved 22 Page 20 31109 1108 Alarm Units High 29 Page 20 31110 1109 Alarm Units Low 31111 1110 Interface High Alarm High x 100 30 Page 21 31112 1111 Interface High Alarm Low x 100 31113 1112 Interface Low Alarm High x 100 31 Page 21 31114 1113 Interface Low Alarm Low x 100 31115 1114 Product High Alarm High x 100 32 Page 21 31116 1115 Product High Alarm Low x 100 31117 1116 Product L...

Page 20: ...mal 147340 Divide by 1000 actual value 147 340 4 Individual digital temperature 5 Average submerged temperature 6 GOVP Gross Observed Volume Product 7 GOVI Gross Observed Volume Interface 8 GOVT Gross Observed Volume Total 9 GOVU Gross Observed Volume Ullage 10 NVSP Net Standard Volume of Product 11 Temperature Correction Method There are five methods to choose from 1 6A Heavy Oils 2 6B Light Oils...

Page 21: ...ng the volume calculations then the value is zero otherwise the value Is a non zero code and one of the following 1 Negative table entries are not allowed 2 Interpolation error level value not found in the table 3 Sphere Calculation error level exceeds sphere radius x 2 4 Calculated a negative volume value 22 Undefined or reserved registers within the register map will return a maximum negative va...

Page 22: ... along with the strap table to calculate the corresponding gross observed volumes 2 NSVP GOVP x VCF The net standard volume of the product NSVP is equal to the gross observed volume of the product GOVP multiplied by the volume correction factor VCF The VCF is calculated from thermal expansion properties of the product programmed by the user and the temperature information from the gauge see 4 VOLU...

Page 23: ...00 0 F 0 to 40 0 API 0 to 250 0 F 40 1 to 50 0 API 0 to 200 0 F 50 1 to 85 0 API Valid temperature range Valid TEC ranges 0 to 300 0 F 270 0 to 510 0 10E 6 F 0 to 250 0 F 510 5 to 530 0 10E 6 F 0 to 200 0 F 530 5 to 930 0 10E 6 F Valid temperature range Valid TEC ranges 0 to 300 0 F 100 0 to 999 0 10E 6 F Table 3 6B light oils Table 4 6C chemicals Table 5 6C MOD For the transition group A T K1 K0 ...

Page 24: ...jp mtssensors com www mtssensors com MTS Temposonics and Level Plus are registered trademarks of MTS Systems Corporation in the United States MTS SENSORS and the MTS SENSORS logo are trademarks of MTS Systems Corporation within the United States These trademarks may be protected in other countries All other trademarks are the property of their respective owners Copyright 2019 MTS Systems Corporati...

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