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Related Manuals for Kenco KT Series
Summary of Contents for Kenco KT Series
- Page 1 Modbus Interface Manual “KT” Series Magnetostrictive Liquid Level Transmitters Kenco Engineering Company 10001 East 54th Street Tulsa, Oklahoma 74146 Phone: 918-663-4406 Fax: 918-663-4480 Website: www.kenco-eng.com Email: info@kenco-eng.com 79863 (Rev. #) [5-2-19]...
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Page 2: Table Of Contents
Modbus Interface Manual Table of contents 7HUPV DQG 'H QLWLRQV ..............3 2. ,QWURGXFWLRQ .................5 6DIHW\ ,QVWUXFWLRQV ..............5 4. 4XLFN 6WDUW8S *XLGH ..............5 4.1 Before You Begin ..............5 4.2 Quick Start-Up Procedure ............. 5 5. 'LVSOD\ 0HQX ................5 5.1 Operation Modes ..............5 5.1.1 Run Mode .............. -
Page 3: 7Hupv Dqg 'H Qlwlrqv
Modbus Interface Manual )281'$7,21 HOGEXV 7HUPV DQG GH QLWLRQV An all digital, serial, two-way communications system that serves as the base-level network in a plant or factory automation environment. 'HYHORSHG DQG DGPLQLVWHUHG E\ WKH HOGEXV )281'$7,21 $ +HDY\ 2LOV ‘Generalized Crude Oils’, Correction of Volume to 60 °F against API Gravity. - Page 4 Modbus Interface Manual 6WUDS 7DEOH A table of measurement correlating the height of a vessel to the volume 0DVV that is contained at that height. The transmitter can contain up to 100 The property of a body that causes it to have weight in a gravitational points.
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Page 5: Qwurgxfwlrq
DUH KLJKOLJKWHG E\ WKH SUHFHGLQJ SLFWRJUDP ZKLFK LV GH QHG EHORZ All liquid level transmitters are shipped with a Stylus (Kenco Part # 79857) to be used for manipulating the display. For single and dual... -
Page 6: Menu Structure
Modbus Interface Manual 0HQX 6WUXFWXUH 1RWH Whenever program mode is exited from the display the unit will reset • Data From Device itself to insure all changes have been accepted. The reset will take ƒ Display approximately 5 seconds before the level transmitter is able to respond ƒ... -
Page 7: Error Codes (Faults)
Modbus Interface Manual 7. Error Codes (Faults) Fault 'HVFULSWLRQ &RUUHFWLYH $FWLRQ Code Fault 'HVFULSWLRQ &RUUHFWLYH $FWLRQ DAC Fault 3 Cycle power to sensor. If proper operation Code is not restored, Contact Factory. Missing 9HULI\ )ORDW &RQ JXUDWLRQ LV FRUUHFW IRU WKH DAC Fault 4 Cycle power to sensor. -
Page 8: Dashboard
Modbus Interface Manual 8.1.2 Home screen 'DVKERDUG The Modbus implementation for the digital transmitter conforms to the ‘Modicon Modbus Protocol Reference Guide, PIMBUS-300 Rev. G’ available from Modicon, Inc. The information provided below assumes familiarity with the Modbus protocol as outlined in this reference guide. All information provided applies to Modbus RTU protocol only. -
Page 9: Rq Jxudwlrq
Modbus Interface Manual &RQ JXUDWLRQ %DXG 5DWH Allows the end user to select the desired baud rate. Default setting is 4800. 'LVSOD\ 6HWWLQJ $OORZV WKH HQG XVHU WR FRQ JXUH WKH GLVSOD\ $YDLODEOH options are level or volume. Default setting is level. 9ROXPH (QDEOH Allows the end user to turn ON and OFF the volume calculation. -
Page 10: Temperature Settings
Modbus Interface Manual /HYHO VHWWLQJV &RQW 7HPSHUDWXUH VHWWLQJV Factory Set: 0HWKRG (QWHU /HYHO 2IIVHW a calibration method that directly changes the offset of the level measurement. The offset is the zero reference point used in determining the level output. Do not use without Factory guidance. -
Page 11: Volume Settings
Modbus Interface Manual 6SKHUH 2IIVHW an offset value that should be added to the volume 9ROXPH VHWWLQJV calculation of the sphere based on tank geometry. (QWULHV allows the user to select how many strapping tables entry points to use. Maximum is 200. ([SRUW 7DEOH allows the user to export the strapping table from the level transmitter. -
Page 12: Save Settings
Modbus Interface Manual 6DYH VHWWLQJV 8.2 Programming the display The display diagram is shown in section 5.2. The display menu structure is shown in section 5.3. This section explains the details of the programming available under the different sections of the display. The factory password for entering the display is 27513. -
Page 13: Modbus Function Codes
Modbus Interface Manual 8.2.3 Factory (Cont.) 0RGEXV IXQFWLRQ FRGHV Communication parameters: 6$5$ %ODQNLQJ Initial blanking distance from the head of the level transmitter. Do not change. Modbus: 4800 BAUD or 9600 8, N, 1 (Reference) Monitor: Modbus RTU Variable BAUD Rate 8, E, 1 0DJQHW %ODQNLQJ %ODQNLQJ GLVWDQFH EHWZHHQ WZR RDWV 'R QRW FKDQJH... - Page 14 Modbus Interface Manual 0RGEXV IXQFWLRQ FRGHV &RQW Error code 03 (Illegal Data Value) Reported when: Note: » Function 03 or 04 is requested and the number of data points is greater than 800. The communications event log is not supported. The “Query data” field is irrelevant (normally, FF00H would clear the log).
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Page 15: Modbus Register Maps
Modbus Interface Manual 0RGEXV UHJLVWHU PDSV 0RGEXV Data Data 1RWHV 5HJLVWHU Address 'HVFULSWLRQ ‡ denotes duplicate 0RGEXV Data Data 1RWHV register 5HJLVWHU Address 'HVFULSWLRQ ‡ denotes duplicate 30031 0030 Temperature Cor- 11, Page 19 register rection Method High Word 30001 0000 Product Level High... - Page 16 Modbus Interface Manual 0RGEXV UHJLVWHU PDSV FRQWLQXHG 0RGEXV Data Data 1RWHV 5HJLVWHU Address 'HVFULSWLRQ 0RGEXV Data Data 1RWHV ‡ denotes duplicate 5HJLVWHU Address 'HVFULSWLRQ register ‡ denotes duplicate 30212 Temperature 4 High register Word (x10000) 30056 0055 Resets the EEPROM data to factory 30213 Temperature 4 Low...
- Page 17 Modbus Interface Manual 0RGEXV UHJLVWHU PDSV FRQWLQXHG 0RGEXV Data Data 1RWHV 5HJLVWHU Address 'HVFULSWLRQ 0RGEXV Data Data 1RWHV ‡ denotes duplicate 5HJLVWHU Address 'HVFULSWLRQ register ‡ denotes duplicate 30267 Volume Calculation 21, page 20 register Error Status ‡ 30243 MASS Low Word ‡...
- Page 18 Modbus Interface Manual 0RGEXV UHJLVWHU PDSV FRQWLQXHG 0RGEXV Data Data 1RWHV 5HJLVWHU Address 'HVFULSWLRQ ‡ denotes duplicate 0RGEXV Data Data 1RWHV register 5HJLVWHU Address 'HVFULSWLRQ ‡ denotes duplicate 31123 1122 Temperature Average 36, Page 21 register High Alarm High (x100) 30293 Temperature 25 Low...
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Page 19: How Units Are Used
Modbus Interface Manual 10. 1963 = 1HW Standard Volume of Product +RZ XQLWV DUH XVHG Registers that are read or preset are done so using the current unit 11. 7HPSHUDWXUH &RUUHFWLRQ 0HWKRG type’s programmed unit. 7KHUH DUH YH PHWKRGV WR FKRRVH IURP 1 = (6A) Heavy Oils For example: 2 = (6B) Light Oils... - Page 20 Modbus Interface Manual 23. 7HPSHUDWXUH 8QLWV 0RGEXV 5HJLVWHU 0DS 1RWHV FRQW G The value for temperature units can be one of the following codes: 19. $ODUP6WDWXV ELW GH QLWLRQV 0 = Celsius D1 Interface Alarm High 1 = Fahrenheit D2 Interface Alarm Low D3 Product Alarm High 24.
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Page 21: Formulas Used In Volume Calculation
Modbus Interface Manual 30. ,QWHUIDFH +LJK $ODUP 0$66 1693 [ '(16,7< The value for which the Interface cannot be >=. Make sure the The mass of the product (MASS) is equal to the net standard value is programmed in the current Alarm Units type. volume of the product (NSVP) multiplied by the density of the (See Note 29) prod uct (DENSITY) programmed by the user. - Page 22 Modbus Interface Manual 9DOLG WHPSHUDWXUH UDQJH 9DOLG 7(& UDQJHV 0 to +300.0 °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 Table 3: 6B light oils 9DOLG WHPSHUDWXUH UDQJH 9DOLG 7(&...
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