Elnet TXT
Contents
1. lt m ala mee coe lt Pa l a A l lt m Mm P oho Z l x Pul 19 So A a x Ho he KAZ 1 c x Zs w Figure 2 3 Schematic Wiring Diagram ElNet TEXT Energy amp Power Multimeter Page 15 lt CONTROL APPLICATIONS Ltd CHAPTER 2 Installation A future planned option the E Net Energy amp Power Multimeter will be the ability to measure electrical 2 4 Connections properties for two separate electrical systems The only restrictions envisaged will be physical and geographical constraints To connect the E Net Energy amp Power Multimeter All Connections except those to the CT core of the E Net Energy amp Power Multimeter are made via terminal connector plugs Voltage input Power Supply earth ground etc Recommended max tightening torque for the connector screws is 0 5 Nm The CT cores of the ElNet Energy amp Power Multimeter are located externally on the front of the instrument and the lead from the leg of the external Current Transformer must pass through in the correct direction NOTE Ensure all the connections to the leads of the current transformer wiring is secure and there is no mechanical strain on the wire Page 16 EINet TEXT Energy amp Power Multimeter E tonno APPLICATIONS Ltd CHAPTER 2 Installation Insert the lead from side L of the Current Tra2. 76 CHAPTER 7 Specifications 78 Appendix A Installation amp Configuration Check List 79 Appendix B List of Illustrations amp Tables 80 INDEX iste S ene ae asa 82 ElNet TEXT Energy amp Power Multimeter Page 3 lt CONTROL APPLICATIONS Ltd CHAPTER 1 Introduction CHAPTER 1 INTRODUCTION 1 1 About the Fi Net Energy amp Power Multimeter All large consumers of electricity e g Factories Hotels Hospitals Municipalities need to know the history of their consumption and the quality of the power supply Details such as Voltage Current Power Factor Hertz Neutral Current Harmonics Energy Demands and all electricity related events are recorded in the E Net Energy amp Power Multimeter These are all recorded on a continual basis and can be recalled and shown on the front panel TEXT display of the instrument with a few simple key strokes any time the user wishes The ElNet Energy amp Power Multimeter is a compact unit installs onto a standard DIN Rail and is especially designed to integrate into Building Management Systems The Configuration and Setup is menu driven Communication with external devices is simple and based on standard known technology The ElNet Energy amp Power Multimeter boasts a new innovative built in Flash Memory which pioneers a new frontier
3. 54 5 12 1 Voltage Total Harmonic Distortion THD 55 5 12 2 Current Total Harmonic Distortion THD 56 5 12 3 Voltage Harmonics 57 5 12 4 Current Harmonics 58 CHAPTER 6 Communications 60 MODBUS Protocol 60 Page 2 ElNet TEXT Energy amp Power Multimeter CONTROL APPLICATIONS Ltd 6 1 MODBUS Framins 60 6 1 1 RTU Transmission Mode 60 6 1 2 The RTU Frame Format 61 6 1 3 Address Eield 62 6 1 4 Function Field 62 6 1 5 Data Field 63 6 1 6 Check Eield 63 6 2 Registers for E Net Energy amp Power Multimeter 63 6 3 Communication Connections 69 6 4 Communication Settinss 70 04 1 Address u sai ia ha qaq ssSssassssssqessssssas 70 6 4 2 Baud Rate 72 6 4 3 Parity2 u s I I U T a 74 6 4 4 Stop Bit
4. 27 4 2 Phase Order Check 29 EINet TEXT Energy amp Power Multimeter Page 1 ONTROL APPLICATIONS Ltd O 4 3 Clock Settings 32 4 4 Date Settinss 34 4 5 Filter Settings 35 4 6 Reset Energy Valuces 37 CHAPTER 5 Text Panel Displays 39 S Cuppentuu ere 39 5 2 Current in Neurtal Line 41 5 3 Volfa8 uu uu uu tari nies herent cies 41 5 4 Active Power P 43 5 5 Reactive Power Q 45 5 6 Apparent Power S 46 5 7 Overall Power Factor and PF for each Phase 47 5 8 Frequency 48 5 9 Active Enersy 50 5 10 Reactive Enersy 51 5 11 Apparent Enerosy 53 5 12 Harmonics
5. lt CONTROL APPLICATIONS Ltd CHAPTER 1 ntroduction CHAPTER 3 Using the ElNet Energy amp Power Multimeter describes in detail the front Panel functions of the control buttons CHAPTER 4 PARAMETER CONFIGURATION amp SETTINGS explains in detail the minimum parameters settings needed by the Senior Electrical Engineer to set up and configure the ElNet Energy amp Power Multimeter CHAPTER 5 Front Panel Displays is an easy to follow step by step guide to obtain readings and histories for the User CHAPTER 6 Communications gives details about the Communication capabilities of the E Net Energy amp Power Multimeter and how to Set Up CHAPTER 7 Specifications is a detailed list of specifications of the E Net Energy amp Power Multimeter APPENDIX A Installation amp Configuration Check List provides a Check List to insure no important steps will be missed during the initial set up APPENDIX B List of Illustrations amp Tables shows a list of the illustrations and Tables INDEX An INDEX is provided to help find a word or a topic easily Page 6 ElNet TEXT Energy amp Power Multimeter E tonno APPLICATIONS Ltd CHAPTER 1 Introduction 1 3 Safety Information The purpose of this manual is to help you Please read the instructions carefully before performing any installation and note any precautions WARNING Ensure that all incoming AC power and other power sources are turned off
6. Figure 6 4 Set Parity Screen 6 4 4 Stop Bit The choice of parity is either 1 or 2 Hierarchy Tree of Stop Bit Setup Top Level Configuration 2 Level Communication 3 Level Stop Bit To set Stop Bit 1 From the Main Menu roll to Configuration 2 Click 3 Roll to Communication Communication lt Information Page 76 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications Click Roll to Stop Bit Click The Set Stop Bit Screen appears Figure 6 5 Set Stop Bit Screen EINet TEXT Energy amp Power Multimeter Page 77 lt CONTROL APPLICATIONS Ltd CHAPTER 7 Specifications CHAPTER 7 Specifications Item Description Power requirements 110 230VAC 60 50 Hz 30VA Dimensions HxWxD 96x159x57 mm Shipping Weight 450 gr Voltage limits 1000VAC Current limits 50A Enclosure material ABS Antiflame Display Liquid Crystal 2 X 16 Operating temperature 20 60 C Storage temperature 20 80 C Humidity 0 90 RH Voltage input terminals VL E10 1708 Communication port RS485 Mounting Standard DIN Rail Overload Protection 1 Amp Fuse All technical specifications are subject to change without notice Page 78 ElNet TEXT Energy amp Power Multimeter CONTROL APPLICATIONS Ltd D Check List Appendix A Installation amp Configuration Check List INSTALLATION CHEC
7. lt CONTROL APPLICATIONS Ltd Table Of Content CHAPTER 1 INTRODUCTIQON 4 1 1 About the E Net Energy amp Power Multimeter 4 1 2 How to use this manual 5 1 3 Safety Information 7 1 4 Warranty issssssisssiiesisesiiessisssiorsiossse isesiseessassiossiossionsiosisasi 8 1 5 Your comments are welcomes 9 1 6 Disclaimer 10 CHAPTER 2 INSTALLATIQN 12 2 1 Contents of packagins 12 2 2 Mechanical mountins 14 2 3 Wiring Schematics 15 2 4 Connections 16 CHAPTER 3 USING THE EINet Energy amp Power Multimeter 19 3 1 Front Panel a na aiaassasassatesssqaschuscqaa 19 3 2 Control Buttons 24 CHAPTER 4 PARAMETER CONFIGURATION amp S ETUPILNGS aaa aqaasssssasssssshasasssSSsssasqdssssesqsssssesssssssssss 26 4 1 Settings for Current Transformer
8. APPLICATIONS Ltd CHAPTER 3 Using the ElNet Energy amp Power Multimeter CHAPTER 3 USING THE EINet Energy amp Power Multimeter In this chapter you will find descriptions and functions of the front panel and the control buttons and how to use them 3 1 Front Panel To operate the front panel The Front Panel has a two line TEXT screen and 3 operating buttons located below the screen All readings are shown on the 2 X 16 text screen How to obtain the readings is explained in detail in Chapter 5 The Control Buttons and their functions are fully explained in Section 3 2 DDDD DDD HA 12A 134 ViV2 V3N N TEXT Screen SSP EINet tnergy amp Power Multimeter SYS COM OUTI OUT2_ SYS A 1 21 73 47 5 67 B DD DD OS C OUT3 4 IN r 8 91 pio 11 Figure 3 1 Front Panel Control Buttons ElNet TEXT Energy amp Power Multimeter Page 19 CONTROL APPLICATIONS Ltd CHAPTER 3 Using the ElNet Energy amp Power Multimeter To obtain Readings All information contained in the Powermeter is viewed by navigating through a logical Hierarchy Menu To arrive at each reading follow a logical step by step procedure starting from Top Level and progress down to 2 Level 3 Level etc To do this look in the lowest level for the specific reading required then go back up and start from the top Level for that reading Page 20 ElNet TEXT Energy amp Power Multi
9. Baud Rates for the E Net Energy amp Power Multimeter 300 bps 600 bps 1200 bps 2400 bps Page 72 EINet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications 4800 bps 9600 bps 19200 bps 38400 bps Hierarchy Tree of Baud Rate Setup Top Level Configuration 2 Level Communication 3 Level Baud Rate To set Baud Rate 1 From the Main Menu roll to Configuration Configuration lt Energy j 2 Click 3 Roll to Communication Communication lt Information EINet TEXT Energy amp Power Multimeter Page 73 lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications 4 Click 5 Roll to Baud 6 Click The Set Baud Screen appears Baud XXXXX Press lt To Set Figure 6 3 Set Baud Rate Screen 7 Click to change Baud Rate 6 4 3 Parity The choices of parity are either EVEN or NONE Page 74 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications Hierarchy Tree of Parity Setup Top Level Configuration 2 4 Level Communication 3 Level Parity To set Parity 1 From the Main Menu roll to Configuration 2 Click 3 Roll to Communication 4 Click 5 Roll to Parity EINet TEXT Energy amp Power Multimeter Page 75 lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications The Set Parity Screen appears Parity XXXX Press lt To Set
10. Energy amp Power Multimeter CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings 4 1 Settings for Current Transformer Hierarchy Tree of Current Transformer Settings Top Level Configuration 2 Level CT Configure 3 Level Set CT Screen 1 4 Level Set CT Screen 2 To set or change settings for Current Transformer The most important setting necessary for the proper functioning of the ElNet Energy amp Power Multimeter is the Current Transformer setting 1 From the Main Menu roll to Configuration EINet TEXT Energy amp Power Multimeter Page 27 CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings 2 Click 3 Rollto CT Configure Filter 4 Click The Set Current Transformer Screen 1 appears CT Configure lt CT 0005 gt 5 To Set CT Figure 4 1 Set Current Transformer Screen 1 5 Click The Set Current Transformer Screen 2 appears CT 0005 gt 5 Set CT Value Figure 4 2 Set Current Transformer Screen 2 Page 28 ElNet TEXT Energy amp Power Multimeter CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings 6 Click tJ to change CT Value Each click rolls the value up by 5 units 4 2 Phase Order Check To avoid any problems arising from incorrect Voltage Connections or accidental reversal of Current Transformer Connections it is necessary t
11. Line 1 Read 19 37 38 Reactive Power Line 2 Read 20 39 40 Reactive Power Line 3 Read 21 41 42 Combined Reactive Power Line 1 2 3 Read 22 43 44 Power Factor Line 1 Read 23 45 46 Power Factor Line 2 Read 24 47 48 Power Factor Line 3 Read EINet TEXT Energy amp Power Multimeter Page 65 lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications 25 49 50 Combined Power Factor for Line 1 2 3 Read 26 51 52 Frequency Line 1 Read 27 53 54 Frequency Line 2 Read 28 55 56 Frequency Line 3 Read 29 57 58 Current Neutral Line Read 30 59 60 31 61 62 32 63 64 33 65 66 34 67 68 35 69 70 36 71 72 37 73 74 38 75 76 39 71 18 40 79 80 Active Energy Read 41 81 82 Reactive Energy Read 42 83 84 Apparent Energy Read 43 85 86 Read 44 87 88 Time from 01 01 2000 in seconds Read 45 89 90 ADDRESS Read 46 91 92 BAUD RATE Read 47 93 94 PARITY Read 48 95 96 Current Transformer Ratio Read Write 49 97 98 Timed average Voltage Read Write 50 99 100 Timed average Current Read Write Page 66 EINet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications 51 101 102 Timed average Power Read Write 52 103 104 Timed avaerge Frequqncy Read Write 53 105 106 THD for Volts Line 1 Read 54 107 108 THD f
12. Order Messages Message Voltage OK Correct Phase Order of Voltage Connections OPP Incorrect Phase Order i e Line 2 does not follow Line 1 and or Line does not follow Line3 Table 4 2 Phase Order Messages 4 3 Clock Settings Hierarchy Tree of Clock Settings Top Level Configuration 2 Level Set Time 3 Level Set Time Screen 1 4 Level Set Time Screen 2 To set Time 1 From the Main Menu roll to Configuration 2 Click 3 Roll to Set Time Page 32 ElNet TEXT Energy amp Power Multimeter CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings 4 Click The Set Time Screen 1 appears Time 00 00 00 To Set Time Figure 4 5 Set Time Screen 1 5 Click The Set Time Screen 2 appears ONG 2 Set Time Figure 4 6 Set Time Screen 2 Click to select Hours Minutes Seconds Click to change Hours 24 hour clock Minutes Seconds ElNet TEXT Energy amp Power Multimeter Page 33 CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings 4 4 Date Settings Hierarchy Tree of Date Settings Top Level Configuration 2 4 Level Set Date 3 d Level Set Date Screen 1 4 Level Set Date Screen 2 To set Date 1 From the Main Menu roll to Configuration Click RolltoSet Date WN Set Date CT Configure 4 Click The Set Date Screen 1 appears Date 00 00
13. Panel Displays 5 Click to change to Line 1 Line 2 amp Line 3 6 Click to read Harmonics from 1 to 32 5 12 4 Current Harmonics Hierarchy Tree of Current Harmonics displays Top Level Harmonics 2 d Level Current Harmonics 3rd Level Current Harmonics from 1 to 32 Line 1 2 amp 3 To display Current Harmonics From 1 to 32 1 From the Main Menu roll to Harmonics 2 Click 3 Rollto Current Harmonics 4 Click Page 58 ElNet TEXT Energy amp Power Multimeter E tonno APPLICATIONS Ltd CHAPTER 5 Panel Displays The Current Harmonics Screen Appears Li Cur Har 1 0 000 Figure 5 14 Current Harmonics from 1 to 32 Screen Click to change to Line 1 Line 2 amp Line 3 Click to read Harmonics from Ist to 32 ElNet TEXT Energy amp Power Multimeter Page 59 lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications CHAPTER 6 Communications MODBUS Protocol The ElNet Energy amp Power Multimeter has a serial interface port allowingt direct interface with an external communication network supporting the MODBUS Protocol MODBUS is an Industry Standard widely known and commonly used communications protocol Using MODBUS provides communication between a PC and up to 247 Powermeter slaves on a common line the PC being the master and the Powermeters the slaves The PC initiates the transaction either a query or broadcast and the Powermeter s responds Powermeters respond to
14. and 7 cm high Page 12 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 2 Installation Before opening the package ensure the area is static free clean and dry Without using any sharp instruments carefully open the carton of the El Net Energy amp Power Multimeter Please check the contents of the carton it should contain 1 S a Your new EZNet Energy amp Power Multimeter ElNet TEXT User Manual This book Test Certificate and Certificate of Compliance C O C 4 X two pole connector plugs 2 X three pole connector plugs 1 X Four pole connector plugs ElNet TEXT Energy amp Power Multimeter Page 13 lt CONTROL APPLICATIONS Ltd CHAPTER 2 Installation 2 2 Mechanical mounting Do not mount the ElNet Energy amp Power Multimeter too close to any main electrical conductors Allow sufficient space to carry out maintenance to the ElNet Energy amp Power Multimeter The ElNet Energy amp Power Multimeter is manufactured with a standard DIN rail mounting To mount simply choose a suitable location and click into position Figure 2 1 Mount onto DIN Rail Page 14 EILNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 2 Installation 2 3 Wiring Schematics H N Z CEE f 4 as wo Vi Ve V3 N 3x1x6A IsB 25
15. before performing any work on the EINet Energy amp Power Multimeter Failure to do so may result in serious or even fatal injury and or equipment damage If the EJINet Energy amp Power Multimeter is damaged in any way do NOT connect it to any power source To prevent a potential fire or shock hazard never expose the ElNet Energy amp Power Multimeter to rain or moisture Keep the surrounding area free of dirt and clutter especially metal objects Good housekeeping pays Inspect the cables periodically for cracks kinks or any other signs of wear Keep children away Do not pull the cords Users should stay alert and not approach the rear of the ElNet Energy amp Power Multimeter while tired or under the influence of alcohol medicines or any other ElNet TEXT Energy amp Power Multimeter Page 7 E tonno APPLICATIONS Ltd CHAPTER 1 Introduction chemical substance that would tend to make a person drowsy Do not wear loose clothing or dangling Jewelry Above all use common sense at all times 1 4 Warranty CONTROL APPLICATIONS Ltd provides a 12 Month warranty against faulty workmanship or components from date of dispatch provided that the product was properly installed and used CONTROL APPLICATIONS Ltd does not accept liability for any damage that may be caused by natural disasters such as floods fire earthquake lightening etc CONTROL APPLICATIONS Ltd does not accept liabi
16. e g Current Voltage Power Power Factor Energy and Harmonics 5 1 Current Hierarchy Tree of Current displays Top Level General 2 Level Current 3 Level Current for Line 1 Line 2 amp Line 3 To display Current for all 3 Phases 1 From the Main Menu roll to General 2 Click 3 Roll to Current ElNet TEXT Energy amp Power Multimeter Page 39 lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays Current Voltage 4 Click The Current Screen Appears Current Ll 0 0 Amper Figure 5 1 Current Screen 5 Roll to Current Line 2 and Line 3 Esc 6 Click to return to General Menu Esc 7 Click to return to Main Menu Page 40 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays 5 2 Current in Neurtal Line By using Vector calculations the E Net Energy amp Power Multimeter calculates the Current in the Neutral Line To display Current in Neutral Line Repeat Steps 1 to 5 as found in Section 5 1 6 Rollto Current In Neutral line 5 3 Voltage Hierarchy Tree of Voltage displays Top Level General 2 4 Level Voltage 3 Level Voltage for Line 1 Line 2 amp Line 3 Voltage between Line 1 2 Line 2 3 Line 3 1 To display Voltage for all 3 Phases and across Phases 1 From the Main Menu roll to General ElNet TEXT Energy amp Power Multimeter Page 41 lt CONTROL APPLICATIONS Ltd CHA
17. maintenance 1 5 Your comments are welcome CONTROL APPLICATIONS Ltd Sincerely thank you for choosing our ElNet Energy amp Power Multimeter We are confident that it will provide you with many years of trouble free service and give you all the power and energy information and history that you expected from the instrument when you bought it ElNet TEXT Energy amp Power Multimeter Page 9 lt CONTROL APPLICATIONS Ltd CHAPTER 1 Introduction While every effort was made to keep the information as reliable helpful accurate and up to date as possible all possible contingencies cannot be covered Technical or typographical errors could occur and we would be happy to receive any comments criticisms or notifications of any such errors from you our valued customer Street Address 24A HaBarzel St Tel Aviv 69710 Israel Tel 972 3 647 4998 Fax 972 3 647 4598 Electronic Address cal ddc co il 1 6 Disclaimer Information in this User Manual is subject to change without notice and does not represent a commitment on the part of CONTROL APPLICATIONS Ltd CONTROL APPLICATIONS Ltd supplies this User Manual as is without warranty of any kind either expressed or implied and reserves the right to make improvements and or changes in the manual or the product at any time Page 10 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 1 Introduction While it is the intension of C
18. 00 To Set Date O Figure 4 7 Set Date Screen 1 Page 34 ElNet TEXT Energy amp Power Multimeter CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings 5 Click The Set Date Screen 2 appears Figure 4 8 Set Date Screen 2 Click to select Day Month Year up to 99 Click to change Day Month Year 4 5 Filter Settings All readings in the E Net Energy amp Power Multimeter are read and displayed every second In a noisy system these readings would show wild fluctuations Fluctuations can be smoothed out by applying Time Average Filters Time Average Filters utilizes the Sliding Window method A calculation is made of the sum of a preset number of readings divided by the same number to gives a new continuously moving average This new calculated reading appears as the new reading every second Recommended factory setting 3 seconds ElNet TEXT Energy amp Power Multimeter Page 35 CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings The Time Average Filter does not affect any internal calculations or accumulation of data Hierarchy Tree of Filter Settings Top Level Configuration 2 4 Level Set Filter 3 Level Set Voltage Filter Set Current Filter Set Power Filter Set Frequency Filter To set Voltage Current Power or Frequency Filters All 4 Filter settings procedures are identical 1 F
19. 2 Harmonics for Current Line 1 Read U U U U 427 853 854 31 Harmonics for Current Line 1 Read 428 855 856 32 Harmonics for Current Line 1 Read 429 857 858 1 Harmonics for Current Line 2 Read 430 859 860 2 4 Harmonics for Current Line 2 Read U U U U 459 917 918 31 Harmonics for Current Line 2 Read 460 919 920 32 4 Harmonicsfor Current Line 2 Read 461 921 922 1 Harmonics for Current Line 3 Read 462 923 924 2 d Harmonics for Current Line 3 Read U U U U 491 981 982 31 Harmonics for Current Line 3 Read 492 983 984 32 4 Harmonics for Current Line 3 Read Page 68 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications Table 6 4 Registers 6 3 Communication Connections The ElNet Energy amp Power Multimeter communicates through RS485 The connections can be seen from the front bottom left and are made by means of the connectors provided TEXT Screen gee oe i pi RS485 Communication Figure 6 1 Communication Connections EINet TEXT Energy amp Power Multimeter Page 69 lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications Pin Designation Description COM of RS485 1 COM of RS485 2 Earth Ground Table 6 5 Connections 6 4 Communication Settings To enable the User to connect the Fi Net Energy amp Power Multimeter to a PC master computer for successful communications t
20. 2 4 Level Active Energy 3 Level Active Energy for Line 1 Line 2 amp Line 3 Active Energy for All Lines To display Active Energy for all 3 phases 1 From the Main Menu roll to Energy 2 Click 4 Rollto Active Energy Active Energy lt i Reactive Energy Page 50 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays 5 Click The Active Energy Screen Appears Act Energy L1 0 000 KWh Figure 5 8 Active Energy Screen 6 Rollto Active Energy Line 1 Line 2 Line 3 ALL 5 10 Reactive Energy Hierarchy Tree of Reactive Energy displays Top Level Energy 2 Level Reactive Energy 3 Level Reactive Energy for Line 1 Line 2 amp Line 3 Reactive Energy for All Lines ElNet TEXT Energy amp Power Multimeter Page 51 E tonno APPLICATIONS Ltd CHAPTER 5 Panel Displays To display Reactive Energy for all 3 phases 1 From the Main Menu roll to Energy Click Roll to Reactive Energy Ww N Reactive Energy lt Apparent Energy 4 Click The ReActive Energy Screen Appears Rea Energy Ll 0 000 KVARh Figure 5 9 Active Energy Screen 5 RolltoReactive Energy Line 2 Line 3 ALL Page 52 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays 5 11 Apparent Energy Hierarchy Tree of Apparent Energy displays Top Level Energy 2 4 Level Apparent Ener
21. Apparent Power lt Active Power 4 Click The Apparent Power Screen Appears Figure 5 5 Apparent Power Screen 5 Roll to Apparent Power Line 2 Line 3 ALL 5 7 Overall Power Factor and PF for each Phase Hierarchy Tree of Power Factor displays Top Level General 2 T evel Power Factor 3 Level Power Factor Line 1 Line 2 amp Line 3 ALL To display Power Factor for all 3 phases 1 From the Main Menu roll to General ElNet TEXT Energy amp Power Multimeter Page 47 E tonno APPLICATIONS Ltd CHAPTER 5 Panel Displays 2 Click 3 Roll to Power Factor Power Factor lt Frequency 4 Click The Power Factor Screen Appears Power Factor 0 0 Figure 5 6 Power Factor Screen 5 Roll to Power Factor Line 2 Line 3 ALL 5 8 Frequency Hierarchy Tree of Frequency displays Top Level General 2 4 Level Frequency 3 Level Frequency for Line 1 Line 2 amp Line 3 Page 48 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays To display Frequency for all 3 phases 1 From the Main Menu roll to General 2 Click 3 Rollto Frequency Figure 5 7 Frequency Screen 5 Roll to Frequency linel Line 2 Line 3 EINet TEXT Energy amp Power Multimeter Page 49 lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays 5 9 Active Energy Hierarchy Tree of Active Energy displays Top Level Energy
22. Energy amp Power Multimeter Page 61 lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications 6 1 3 Address Field Each Powermeter Is designated In a network system by a user assigned address The Address can be any number between 1 and 247 The Powermeter will only respond to it s own specificically assigned address 6 1 4 Function Field The function field contains the code that tells the Powermeter what action to perform The EINet Energy amp Power Multimeter uses and responds to four standard Message Format Functions Function 03 Function 04 Function 06 Function 16 Function Meaning in MODBUS Action Function 03 Read holding register Obtain data from Powermeter Read register Function 04 Read input register Obtain data from Powermeter Read register Function 06 Preset single register Transmit data to Powermeter Write single register Function 16 Preset multiple register Transmit data to Powermeter Write multiple registers Table 6 3 Function Codes Page 62 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications 6 1 5 Data Field The Data field contains the body of the message and contains Instructions from the PC master to the Powermeter slave to perform a particuler action or respond to a query The reply message from the Powermeter will be information contained in one or more
23. Field 61 functions 24 H Harmonics 4 54 hazardous voltages 12 Hierarchy Tree 20 illustrations 80 improvements 10 injury 7 integer 63 64 ElNet TEXT Energy amp Power Multimeter CONTROL APPLICATIONS Ltd L liability 8 Liquid Crystal display 5 List of Tables 81 M mechanical mounting 14 minimum settings 26 MODBUS 60 moisture 7 N natural disasters 8 O open circuit 17 P packaging 12 79 Parity 66 74 Phase Order Check 29 Power Factor 47 power failure 25 power source 7 12 precautions 7 ElNet TEXT Energy amp Power Multimeter INDEX R ratio 26 registers 63 65 repair 9 replacement 9 S safety information 7 12 service 9 settings Current Transformer 27 signs of wear 7 Specifications 6 78 static free 13 Stop Bit 61 70 76 T terminal connector 17 test certificate 5 Text Screen 19 Total Harmonics Distortion 54 55 56 V void the warranty 9 Voltage 4 41 W warranty 8 warranty period 9 Page 83
24. K LIST Description Date Signature Check contents of packaging Remove from packaging Mount Multimeter Connect Multimeter power supply Connect 3 Current Transformer Connect 3 Voltage lines Connect Neutral line Set parameter for Current Transformer Connect Communication lines Appendix A Table Installation amp Configuration Check List ElNet TEXT Energy amp Power Multimeter Page 79 CONTROL APPLICATIONS Ltd N a List of Illustrations Appendix B List of Illustrations amp Tables LIST OF ILLUSTRATIONS Figure 2 1 Mount onto DIN Rail Figure 2 3 Schematic Wiring Diagram Figure 3 1 Front Panel Figure 3 2 Control Buttons Figure 4 1 Set Current Transformer Screen 1 Figure 4 2 Set Current Transformer Screen 2 Figure 4 3 Check Volt amp Current Connections Figure 4 4 Check Phase Order Figure 4 5 Set Time Screen 1 Figure 4 6 Set Time Screen 2 Figure 4 7 Set Date Screen 1 Figure 4 8 Set Date Screen 2 Figure 4 9 Set Filter Screen Figure 4 10 Enter Command Code Figure 4 11 Energy Reset Figure 5 1 Current Screen Figure 5 2 Voltage Screen Figure 5 3 Active Power Screen Figure 5 4 Reactive Power Screen Figure 5 5 Apparent Power Screen Figure 5 6 Power Factor Screen Figure 5 7 Frequency Screen Figure 5 8 Active Energy Screen Figure 5 10 Apparent Energy Screen Page 80 ElNet TEXT Energy amp Power Multimeter E to
25. ONTROL APPLICATIONS Ltd to supply the customer with accurate and reliable information in this User Manual CONTROL APPLICATIONS Ltd assumes no responsibility for its use or for any infringement of rights of the fourth parties which may result from its use This User Manual could contain technical or typographical errors and changes are periodically made to the information herein these changes may be incorporated in new editions of the publication ElNet TEXT Energy amp Power Multimeter Page 11 lt CONTROL APPLICATIONS Ltd CHAPTER 2 nstallation CHAPTER 2 INSTALLATION In this Chapter you will find the information and instructions that the Installation Technician needs to mount and connect the ELNet Energy amp Power Multimeter WARNING During operation hazardous voltages are present in connecting cables and terminal blocks Fully qualified personnel must do all work Failure to follow this rule may result in serious or even fatal injury to personnel and or damage to equipment Refer to Section 1 3 Safety information before carrying out any installation Read this manual thoroughly and make sure you understand the contents before connecting the EZNet Energy amp Power Multimeter to any power source 2 1 Contents of packaging To unpack the E Net Energy amp Power Multimeter The ElNet Energy amp Power Multimeter is packed and shipped in a carton approximately 18 5 cm long X 10 5 cm wide
26. PTER 5 Panel Displays 2 Click 3 Roll to Voltage Voltage Power Factor 4 Click The Voltage Screen Appears Voltage Ll 000 0 Volt Figure 5 2 Voltage Screen 5 Roll to Voltage Line 2 Line 3 Voltage between Line 1 2 Line 2 3 Line 3 1 Page 42 ElNet TEXT Energy amp Power Multimeter E tonno APPLICATIONS Ltd CHAPTER 5 Panel Displays Parameter Description Units L1 Voltage from Linel to Neutral Volts L2 Voltage from Line2 to Neutral Volts L3 Voltage from Line3 to Neutral Volts L12 Voltage across Linel and Line2 Volts L23 Voltage across Line2 and Line3 Volts L13 Voltage across Linel and Line3 Volts 5 4 Active Power P Hierarchy Tree of Active Power displays Top Level Power 2 Level Active Power 3 Level Active Power for Line 1 Line 2 amp Line 3 Active Power for All Lines To display Active Power for all 3 phases 1 From the Main Menu roll to Power Power Harmonics 2 Click 3 Rollto Active Power ElNet TEXT Energy amp Power Multimeter Page 43 lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays Active Power lt Reactive Power y 4 Click The Active Power Screen Appears Figure 5 3 Active Power Screen 5 Roll to Active Power Line 2 Line 3 ALL Parameter Description Unit P Active Power for each Line Watts Q Reactive Power for each Line VAR S Appar
27. e L1 0 000 Figure 5 11 Voltage Total Harmonics Distortion Screen 5 Rollto THD Voltage for Line 2 and Line 3 ElNet TEXT Energy amp Power Multimeter Page 55 E tonno APPLICATIONS Ltd CHAPTER 5 Panel Displays 5 12 2 Current Total Harmonic Distortion THD Hierarchy Tree of Current Total Harmonic Distortion displays Top Level Harmonics 2 Level Current THD 3rd Level Current THD for Line 1 Line 2 amp Line 3 To display Current Total Harmonic Distortion THD 1 From the Main Menu roll to Harmonics 2 Click 3 Rollto Current THD Current THD lt I Voltage Harmon 4 Click The THD Current Screen Appears THD Current Ll 0 000 Figure 5 12 Current Total Harmonics Distortion Screen 5 Rollto THD Current for Line 2 and Line 3 Page 56 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays 5 12 3 Voltage Harmonics Hierarchy Tree of Volt Harmonics displays Top Level Harmonics 2 4 Level Voltage Harmonics 3rd Level Volt Harmonics from 1 to 32 for Line 1 2 amp 3 To display Volt Harmonics From 1 to 32 1 From the Main Menu rollto Harmonics 2 Click 3 Rollto Voltage Harmonics 4 Click The Voltage Harmonics Screen Appears Li Volt Hare 1 0 Figure 5 13 Volt Harmonics from 1 to 32 9 Screen ElNet TEXT Energy amp Power Multimeter Page 57 E tonno APPLICATIONS Ltd CHAPTER 5
28. ent Power for each Line VA gt P Total Active Power for all 3 Lines Watts gt Q Total Reactive Power for all 3 Lines VAR gt S Total Apparent Power forall 3 Lines VA PF Power Factor Page 44 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays 5 5 Reactive Power Q Hierarchy Tree of Reactive Power displays Top Level Power 2 Level Reactive Power 3 d Level Reactive Power for Line 1 Line 2 amp Line 3 Reactive Power for All Lines To display Reactive Power for all 3 phases 1 From the Main Menu roll to Power Power Harmonics 2 Click 3 Rollto Reactive Power Reactive Power lt lt Apparent Power 4 Click EINet TEXT Energy amp Power Multimeter Page 45 lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays The ReActive Power Screen Appears Rea Power Ll 0 0 VAR Figure 5 4 Reactive Power Screen 5 Rollto Active Power Line 2 Line 3 ALL 5 6 Apparent Power S Hierarchy Tree of Reactive Power displays Top Level Power 2 Level Apparent Power 3 Level Apparent Power for Line 1 Line 2 amp Line 3 Apparent Power for All Lines To display Apparent Power for all 3 phases 1 From the Main Menu roll to Power Power Harmonics 2 Click 3 Rollto Apparent Power Page 46 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays
29. gy 3 Level Apparent Energy for Line 1 Line 2 amp Line 3 Apparent Energy for All Lines To display Apparent Energy for all 3 phases 1 From the Main Menu roll to Energy Click Rollto Apparent Energy WN Apparent Energy lt Taoz Rates 4 Click ElNet TEXT Energy amp Power Multimeter Page 53 lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays The Apparent Energy Screen Appears Figure 5 10 Apparent Energy Screen 5 Rollto Apparent Energy Line 2 Line 3 ALL 5 12 Harmonics Poor Harmonics could invoke a fine and can be improved by adding capacitors or simply switching a suspect appliance off and noting any improvement The E Net Energy amp Power Multimeter is capable of displaying Volt and Current Harmonics In addition Total Harmonics Distortion THD for Volts and Current can also be displayed on the TEXT Screen Page 54 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 5 Panel Displays 5 12 1 Voltage Total Harmonic Distortion THD Hierarchy Tree of Voltage Total Harmonic Distortion displays Top Level Harmonics 2 Level Voltage THD 3rd Level Voltage THD for Line 1 Line 2 amp Line 3 To display Voltage Total Harmonic Distortion THD 1 From the Main Menu roll to Harmonics 2 Click 3 Roll to Voltage THD Voltage THD Current THD 4 Click The THD Voltage Screen Appears THD Voltag
30. he Communication Setup parameters of both must match i e the port of the PC master and the configuration settings of the Powermeter Address Baud Rate Parity Stop Bit 6 4 1 Address Each Powermeter in a communication system must have it s own unique address Because the FElNet Energy amp Power Multimeter works on MODBUS the available addresses are from 1 to 31 Page 70 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications Hierarchy Tree of Address Setup Top Level Configuration 2 Level Communication 3 Level Address To set up Address 1 From the Main Menu roll to Configuration Configuration lt Energy 2 Click 3 Rollto Communication Communication lt Information 4 Click 5 Rollto Address EINet TEXT Energy amp Power Multimeter Page 71 lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications 6 Click The Set Address Screen 1 appears Address XX Press lt To Set Figure 6 2 Set Address Screen 7 Click to set Address 6 4 2 Baud Rate The Baud Rate is the communication speed in Bits per second BPS that the Z Net Energy amp Power Multimeter communicates with the PC master The better the communication line Quality the faster the communications may be If the communication line is routed through a noisy environment it may be necessary to decrease the Baud Rate Available
31. he one the arrow is pointing to OR selects a field to be set or changed during Set UP Page 24 ElNet TEXT Energy amp Power Multimeter CONTROL APPLICATIONS Ltd CHAPTER 3 Using the EINet Energy amp Power Multimeter Button is a spin control that rolls the text upwards one line per click OR at the lowest level rolls to each reading of that group OR modifies the selected field during Set UP Esc Button returns to the previous step NOTE In the event of a general power failure the E Net Energy amp Power Multimeter returns to the last screen displayed ElNet TEXT Energy amp Power Multimeter Page 25 CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings CHAPTER 4 PARAMETER CONFIGURATION amp SETTINGS In this chapter you will find instructions to set the minimum settings that are necessary to allow the E Net Energy amp Power Multimeter to function properly WARNING The selection installation and settings of the Current Transformer is the most vital and fundamental action required to ensure the accurate functioning of the E Net Energy amp Power Multimeter It is essential to know the ratio of the Current Transformer being installed into the system in order to set the parameter for the Current Transformer correctly All three main current Lines MUST have Current Transformers of the same ratio installed onto them Page 26 ElNet TEXT
32. into electrical measurement It has a 1 MB of ROM with a capacity of recording up to 2 years of unusual events Page 4 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 1 Introduction Readings amp history are shown on a 2 X 16 Text Liquid Crystal display Each EZNet Energy amp Power Multimeter is carefully and meticulously manufactured using quality components and the latest production methods Before leaving the factory each Net Energy amp Power Multimeter is calibrated and sent to the customer accompanied by the test certificate and Certificate Of Compliance C O C 1 2 How to use this manual We at CONTROL APPLICATIONS Ltd envisage this manual to be used by three types of people i e the Installation Technician the Senior Electrical Engineer and the end User For this reason this manual is divided into chapters for ease of reference by each of these different people There could be a situation where two of the abovementioned tasks can be combined or in a rare instance one person could handle all three tasks CHAPTER 1 Introduction describes the ElNet Energy amp Power Multimeter its potential users the readings it can provide and some of its features in brief CHAPTER 2 Installation provides detailed instructions for unpacking mechanical mounting and electrical wiring up instructions for the Installation Technician ElNet TEXT Energy amp Power Multimeter Page 5
33. lity for any damage that may be caused by malfunction of the E Net Energy amp Power Multimeter CONTROL APPLICATIONS Ltd will advise the customer on the proper installation and use of the FElNet Energy amp Power Multimeter but will not accept any responsibility that the instrument is suitable for the application for which it was originally purchased Page 8 ElNet TEXT Energy amp Power Multimeter E tonno APPLICATIONS Ltd CHAPTER 1 Introduction This warranty may become void if the installation parameter configuration amp setting instructions are not carried out according to the instructions set out by CONTROL APPLICATIONS Ltd The ElNet Energy amp Power Multimeter has no user serviceable parts and should be opened and serviced by a duly qualified authorized representative only The sensitive electronics could be damaged if exposed to a static environment This action would void the warranty This warranty is limited to the repair and or replacement at CONTROL APPLICATION Ltd sole discretion of the defective product during the warranty period Repaired or replaced products are warranted for ninety 90 days from the date of repair or replacement or for the remainder of the original product s warranty period whichever is longer CONTROL APPLICATIONS Ltd is always at your service to advise the customer on any problem that may be encountered regarding any installation operation parameter amp configuration settings or
34. meter ONTROL APPLICATIONS Ltd CHAPTER 3 Using the ElNet Energy amp Power Multimeter Hierarchy of Menus Active Energy Top Level Reactive Energy Apparent Energy L1 L2 L3 EINet TEXT Energy amp Power Multimeter Page 21 ONTROL APPLICATIONS Ltd CHAPTER 3 Using the ElNet Energy amp Power Multimeter Hierarchy of Menus Continued Top Level 1 32 for L1 1 32 for L2 1 32 for L3 1 32 for L1 1 32 for L2 1 32 for L3 Page 22 ElNet TEXT Energy amp Power Multimeter ONTROL APPLICATIONS Ltd CHAPTER 3 Using the ElNet Energy amp Power Multimeter Hierarchy of Menus Continued Voltage Current Power Freq Line Status Top Level CT Configure Top Level Communication Technical Phase Order EINet TEXT Energy amp Power Multimeter Page 23 CONTROL APPLICATIONS Ltd CHAPTER 3 Using the EINet Energy amp Power Multimeter 3 2 Control Buttons Function of the Control Buttons The ElNet Energy amp Power Multimeter has three control buttons arranged below the display screen These require slight finger pressure to click The User and Senior Electrical Engineer use these Control Buttons to view readings and perform all the Set Up functions J W amp Figure 3 2 Control Buttons Button moves to the next level down t
35. nno APPLICATIONS Ltd List of Illustrations Figure 5 11 Voltage Total Harmonics Distortion Screen Figure 5 12 Current Total Harmonics Distortion Screen Figure 5 13 Volt Harmonics from Ist to 32nd Screen Figure 5 14 Current Harmonics from 1st to 32nd Screen Figure 6 11 Communication Connections Figure 6 12 Set Address Screen Figure 6 13 Set Baud Rate Screen Figure 6 14 Set Parity Screen Figure 6 15 Set Stop Bit Screen LIST OF TABLES Table 2 1 Connections Table 6 1 RTU Data Format Table 6 2 R T U Message Frame Format Table 6 3 Function Codes Table 6 4 Registers Table 6 5 Connections Appendix A Table Installation amp Configuration Check List ElNet TEXT Energy amp Power Multimeter Page 81 Page 82 CONTROL APPLICATIONS Ltd A AC power 7 address 10 61 62 70 Apparent Energy 53 B Baud Rate 72 73 Building Management Systems 4 C C O C 5 cables 7 12 carton 13 Certificate Of Compliance 5 Check Field 63 Check List 6 79 children 7 Clock Settings 32 comments 9 10 commitment 10 Communications 6 60 conductors 14 Configuration 26 consumption 4 control buttons 19 cracks 7 CT core 16 Current 4 39 Current Transformer 26 27 INDEX INDEX D damage 7 Data Field 63 Date Settings 34 defective 9 DIN Rail 4 14 Disclaimer 10 F Filter Settings 35 fire 7 Flash Memory 4 format 61 Frequency 48 Front Panel 19 Function
36. nsformers of Line 1 through the top of the CT core HA of the EJNet Energy amp Power Multimeter e Ensure the leads from leg L of the Current Transformer on Line 1 passes through the top of CT core HA e Ensure the other end of the lead emerging from the bottom of C T core 1A is looped back and connected to leg K of the Current Transformer on Line 1 WARNING Never allow an open circuit between the two Current Transformers An open circuit will cause damage to equipment Repeat the procedure for Line 2 and Line 3 Connect the rest the connections to the E Net Energy amp Power Multimeter by means of terminal connecto plugs ElNet TEXT Energy amp Power Multimeter Page 17 lt CONTROL APPLICATIONS Ltd CHAPTER 2 Installation Designation Description Remarks V1 Direct from Busbar1 Through a 6Amp fuse V2 Direct from Busbar2 Through a 6Amp fuse V3 Direct from Busbar3 Through a 6Amp fuse N Direct from Neutral Line WA From Current Note the correct direction to Transformer on Linel insert the lead LA From Current Note the correct direction to Transformer on Line2 insert the lead BA From Current Note the correct direction to Transformer on Line3 insert the lead Power 220 V AC Bridged from V3 N Neutral Bridged from the neutral Line Earth Ground Page 18 Table 2 1 Connections ElNet TEXT Energy amp Power Multimeter E tonno
37. o perform a Phase Order Check before continuing Top Level Configuration 2 Level Line Status 3 Level Check Line Status Volts Line 1 2 amp 3 Check Line Status Current Line 1 2 amp 3 Check Phase Order ElNet TEXT Energy amp Power Multimeter Page 29 CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings To perform Line Status Check Connection Check amp Phase Order Check 1 From the Main Menu roll to Configuration Configuration lt l Energy 2 Click 3 Roll to Line Status Set Time 4 Click The Line Status amp Phase Order screen appears Line Status lt Volt Line 1 0K Volt line 2 0K Figure 4 3 Check Volt amp Current Connections 5 Roll to Volts Linel 2 amp 3 Page 30 ElNet TEXT Energy amp Power Multimeter CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings 6 Rollto Curr Linel 2 amp 3 Voltage and Current Messages Table 4 1 Voltage and Current Messages Message Voltage Current OK Voltage present on Lines Current present in Lines and synchronized with Voltage Lines OPP Wired in incorrect direction NO No Voltage No current 7 Roll to Phase Order Curr liane 382525 Phase Order OK Figure 4 4 Check Phase Order ElNet TEXT Energy amp Power Multimeter Page 31 CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings Phase
38. of it s registers 6 1 6 Check Field The error check field contains the result of Cyclical Redundancy Check CRC The start of the message is ignored in calculating the CRC For more detailed information on CRC refer to the MODBUS Protocol Reference Guide 6 2 Registers for E Net Energy amp Power Multimeter The ElNet Energy amp Power Multimeter is capable of supporting either Function 03 or Function 04 Message Format See Table 1 3 In a reply to a query from the PC master for a reading from a particular field the response from the Powermeter can be either in Format 03 or Format 04 but will depend on which Format the qeuery was originally sent The difference is significant because by using Function 03 the ELNet will only send the INTEGER part of the field value requested and the PC master will only display the INTEGER part of the field value ElNet TEXT Energy amp Power Multimeter Page 63 lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications Function 04 on the other hand is capable of sending two separate halves of the full FLOAT requested information each half contained in a separate register Then it is the task of the PC master to merge the two halves into a full FLOAT reply For more detailed information See IEEE Standard 754 Floating Point E G If the user s PC master supports Function 03 then the reply will contain the INTEGER part of the field only The PC master requests the V
39. oltage from Linel and the actual Voltage in that field is 230 5 Volts Function 03 will respond with the INTEGER only i e 230V E G 2 If the user PC master supports Function 04 then the reply will contain the information stored in the two registers asssigned to that field and will contain the full accurate reply The PC master requests the Voltage from Linel and the actual Voltage in that field is 230 5 Volts Function 04 will respond with a composite reply of both register 1 and 2 giving the full FLOAT value in IEEE Format from that field i e 230 5V Page 64 EINet TEXT Energy amp Power Multimeter h lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications MODBUS No Register Field Description Type l 1 2 Voltage Line 1 Read 2 3 4 Voltage Line 2 Read 3 5 6 Voltage Line 3 Read 4 7 8 Voltage between line 1 and Line 2 Read 5 9 10 Voltage between line 2 and Line 3 Read 6 11 12 Voltage between line 3 and Line 1 Read 7 13 14 Current in Line 1 Read 8 15 16 Current in Line 2 Read 9 17 18 Current in Line 3 Read 10 19 20 Active Power Line 1 Read 11 21 22 Active Power Line 2 Read 12 23 24 Active Power Line 3 Read 13 25 26 Combined Active Power Line 1 2 3 Read 14 27 28 Apparent Power Line 1 Read 15 29 30 Apparent Power Line 2 Read 16 31 32 Apparent Power Line 3 Read 17 33 34 Combined Apparent Power Line 1 2 3 Read 18 35 36 Reactive Power
40. or Volts Line 2 Read 55 109 110 THD for Volts Line 3 Read 56 111 112 THD for Current Line 1 Read 57 113 114 THD for Current Line 2 Read 58 115 116 THD for Current Line 3 Read 59 60 119 120 Active Power Line 1 Read 61 121 122 Active Power Line 2 Read 62 123 124 Active Power Line 3 Read 63 125 126 Reactive Power Line 1 Read 64 127 128 Reactive Power Line 2 Read 65 129 130 Reactive Power Line 3 Read 66 131 132 Apparent Power Line 1 Read 67 133 134 Apparent Power Line 2 Read 68 135 136 Apparent Power Line 3 Read 301 601 602 1 Harmonics for Volts Line 1 Read 302 603 604 2 Harmonics for Volts Line 1 Read U U U U 331 661 662 31 Harmonics for Volts Line 1 Read 332 663 664 32 4 Harmonics for Volts Line 1 Read 333 665 666 1 Harmonics for Volts Line 2 Read ElNet TEXT Energy amp Power Multimeter Page 67 lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications 334 667 668 2 Harmonics for Volts Line 2 Read U U U U 363 725 726 31 Harmonics for Volts Line 2 Read 364 727 728 32 Harmonics for Volts Line 2 Read 365 729 730 1 Harmonic for Volts Line 3 Read 366 731 732 2 Harmonics for Volts Line 3 Read U U U U 395 789 790 31 t Harmonics for Vots Line 3 Read 396 791 792 32 Harmonics for Volts Line 3 Read 397 793 794 1 Harmonics for Current Line 1 Read 398 795 796
41. rom the Main Menu roll to Configuration 2 Click 3 Roll toFilter 4 Click 5 Roll to either Voltage Current Power or Frequency Filters Page 36 ElNet TEXT Energy amp Power Multimeter CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings 6 Click The Set Filter screen appears Volt Filter 1 Press lt To Set Figure 4 9 Set Filter Screen 7 Click to set Filter one second per click Filter settings can be set between 1 and 50 seconds 4 6 Reset Energy Values Hierarchy Tree of Reset Energy Values Top Level Configuration 2 4 Level Technical To Reset Energy Values 1 From the Main Menu roll to Configuration 2 Click 3 Rollto Technical ElNet TEXT Energy amp Power Multimeter Page 37 CONTROL APPLICATIONS Ltd CHAPTER 4 Parameter Configuration amp Settings 4 Hold for 4 seconds The Enter Command Code screen appears Enter Cmd Code 000 Figure 4 10 Enter Command Code 5 Roll the code till 642 6 Click If you overrun the code continue to 999 and start again The Energy Reset screen appears for 1 second Energy Reset Done Figure 4 11 Energy Reset Page 38 ElNet TEXT Energy amp Power Multimeter E tonno APPLICATIONS Ltd CHAPTER 5 Panel Displays CHAPTER 5 Text Panel Displays In this chapter you will find instructions on how to obtain the readings that the E Net Energy amp Power Multimeter provides
42. the master Pc s request but will not iniate any transmission on its own The PC sends a single Query transaction and the Powermeter responds in a single response frame and is capable of only one query and one response at a time 6 1 MODBUS Framing 6 1 1 RTU Transmission Mode MODBUS uses the standard Remote Terminal Unit RTU transmission mode RTU mode sends data in 8 bit binary Even parity or 8 bit binary NO parity data format For the E Net Energy amp Power Multimeter to successfully communicate choose one in the communication Set Up Page 60 ElNet TEXT Energy amp Power Multimeter lt CONTROL APPLICATIONS Ltd CHAPTER 6 Communications Field No of bits Start bit 1 Data bits 8 Parity 1 Stop bit 1 Table 6 1 RTU Data Format 6 1 2 The RTU Frame Format Query and response information is sent in frames Each frame contains Address Function See Section 6 1 4 for descriptions of functions Data Check Address Function Data Check 8 bits 8 bits N 8 bits 16 bits Table 6 2 R T U Message Frame Format If the receiving device Powermeter detects a time laps of five characters then it will assume the message is incomplete and will flush the frame The device Powermeter then assumes that the next byte received will be an address The maximum query and response message length is 256 bytes includuing check characters ElNet TEXT
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