Datalogging Option User Manual
Contents
1. dr veiw ds dut an ee 1 Table of 2 1 AAA 3 Lil FO QUUIGS strate ad dt AA da ab n a DE 3 1 2 aaa nn PS dr 3 1 35 FGS MEME rs TE E A AR RE SR TA 4 1 4 Battery backed Real time Clock 4 2 Configuring the LOG 6 2 1 Ch nging Logging Settings ini ae a ia fa aies 6 22 Selecting Logging Frequentes 6 2 3 Sel cting Registers z Srtremin i tie the aaa 6 2 4 Selecting ogging MOde ai 7 3 Downloading the Log 8 4 Modbus 9 4 1 Register ace eat 9 4 2 Downloading the A eet aa ae ies 9 4 3 109 nen oe 10 A A Example Configura iria RER A 10 ELKOR TECHNOLOGIES INC Page 2 WattsOn Mark Il LOGGING GUIDE 1 I NTRODUCTI ON 1 1 Features The WattsOn Mark 11 models containing the logging module models containing the DL or L suffix i e W2 M1 mA DL can record historical data from any of its registers onto built in Flash memory The logging module features Programmable battery backed real time clock for timestamps Freely configurable parameter selection for logging Logging freque2. Stop Bits gt COM12 USB Serial Port If the appropriate serial port is not obvious from its name the Windows Device Manager should be used to determine the correct port Open the WattsOn Mark II Display Page Editor by clicking on Devices Elkor WattsOn Mark 11 Logging Manager see screenshot below ELKOR TECHNOLOGIES INC Page 3 WattsOn Mark Il LOGGING GUIDE a L Modbus Commander EEE Registers Devices Format Setup Window u About ma Elkor ECM Elkori Spy 2 Elkor WattsOn ElkorWattsOn MarkI gt Energy Parameters JE SunSpec Device Real Time Parameters Configuration Relay Configuration Scratchpad Display Page Editor Logging Manager Firmware Update 1 3 Flash Memory The logging module contains two megabytes of flash memory used for storing log entries Flash memory has inherently limited write endurance the memory used in the WattsOn Mark 11 is guaranteed to sustain 100 000 complete writes from beginning to end before failing Each time the log is erased the flash memory is reset to its starting position If frequent logging is expected it is best to allow the log to stay in continuous mode thereby overwriting old entries and writing in a circular fashion to incorporate a simple wear leveling mechanism 1 4 Battery backed Real time Clock The logging module contains a battery backed real time clock The battery is
3. ELOR WattsOm MARK M PRECISION ENERGY METER DATALOGGI NG L DL Option USER MANUAL Installation Considerations Installation and maintenance of the WattsOn device must only be performed by qualified competent personnel who have appropriate training and experience with electrical high voltage and current installations The WattsOn device must be installed in accordance with all Local and National Electrical Safety Codes WARNING Failure to observe the following may result in severe injury or death e During normal operation of this device hazardous voltages are present on the input terminals of the device and throughout the connected power lines including any potential transformers PTs With their primary circuit energized current transformers CTs may generate high voltage when their secondary windings are open Follow standard safety precautions while performing any installation or service work i e remove line fuses short CT secondaries etc e This device is not intended for protection applications e not HIPOT and or dielectric test any of the digital outputs Refer to this manual for the maximum voltage level the meter can withstand e not exceed rated input signals as it may permanently damage the device e The power supply input should be connected via a rated 12 30 VAC VDC power supply and properly isolated from the line voltage Danger Line voltages up to 600 VRMS may be present on the input ter
4. individual byte shown in hexadecimal on the last line First Entry most recent Second Entry Timestamp 1420070460 54 A4 8E 3C Net Total Energy 2 00 00 00 02 Total Active Power 120000 00 01 D4 CO Timestamp 1420070400 54 A4 00 Net Total Energy 0 00 00 00 00 Total Active Power 120000 00 01 D4 CO 0 2 In this example Net Total Energy assumes a defau 4 6 8 10 12 14 16 18 When Net Total Energy shows 2 in this case it represents an accumulation of 200 Wh 12 kW after 1 minute 20 22 t energy divider setting of 100 thereby the integer energy registers have a resolution of 100Wh Total Active Power has a resolution of 0 1W therefore when Total Active Power shows 120 000 it represents a value of 12 000 0 W 24 ELKOR TECHNOLOGIES INC Page 10 WattsOn Mark 11 LOGGING GUIDE Elkor Technologies Inc 6 Bainard Street London Ontario 1A8 Tel 519 652 9959 Fax 519 652 1057 www elkor net O 2015 Elkor Technologies Inc
5. 100 to 41FA The page can be selected by writing to the Log Page register at address 0x4010 The algorithm for reading the entire log is outlined below page 0 entries read 2 Modbus registers at 0x400A size read 1 Modbus register at 0x400C remaining entries x size file open binary file loop while remaining gt 0 write page to Modbus register at 0x4010 count min remaining 125 remaining remaining count data read count Modbus registers at 0x4100 append file with data count min remaining 125 remaining remaining count data read count Modbus registers at 0x417D append file with data page page 1 ELKOR TECHNOLOGIES INC Page 9 WattsOn Mark Il LOGGING GUIDE 4 3 Log Format The log is composed of a sequence of entries with the most recent entry first Each entry is a series of bytes The first four bytes represents the timestamp of the entry and the remaining bytes represent each register that was chosen to be logged in order Each register requires at least 2 bytes though many of the registers available the WattsOn Mark 11 require 4 bytes such as all of the real time and accumulated electrical parameters Show below is an example in which 4 registers have been logged Second Entry Reg 1 Reg 2 First Entry most recent Reg 1 Reg 2 Timestamp 14 Timestamp Reg 3 Reg 4 2 Reg 3 Reg 4 L Pi 6 8 10 12 18 20 22 4 4 Exa
6. bers Comma Separated Values csv Each value in the log entry is separated with a delimiter The first value in each entry is a As hexadecimal numbers timestamp Each entry is separated by a new line This format is useful for importing the Pause logging during download recommended data into a spreadsheet program and can also be easily read in a text editor Erase log when finished downloading Binary bin Each value is represented in binary one after another This format is useful for processing by simple computer programs See section 4 3 Log Format for a description of the binary log Start Download format When using CSV format the register values are converted to text The Operation complete Register Formatting options determine how that process occurs The three options are described below Register Formatting Option Description According to register type The software will format each register value according to what kind of value the register represents For example both floating point values and integer values will be converted appropriately This is recommended As decimal numbers All registers will be converted based on their raw values represented as integers in decimal format As hexadecimal numbers All registers will be converted based on their raw values represented as integers in hexadecimal format When the settings have been configured as desired click the Start Downl
7. etails about using the display editing numbers and setting the time 1 4 2 Setting the clock v a Modbus Commander 1 Open the Logging Manager page as described in section 1 2 Modbus Commander p 3 2 Click the Sync button the use the program the current PC date time into the unit A date time can also be manually entered into the Clock field if a date time different from the PC s date time is desired 1 4 3 Setting the clock v a Modbus The clock can be accessed as an unsigned 32 bit register at offset Ox4008 containing a standard UNIX timestamp that is it records the number of seconds that have elapsed since January 1 1970 at midnight 32 bit registers are accessed as two 16 bit Modbus registers in this case Ox4008 containing the most significant two bytes and 0x4009 containing the least significant two bytes ELKOR TECHNOLOGIES INC Page 4 WattsOn Mark Il LOGGING GUIDE It is recommended that both registers be written with the same command using Modbus Function 0x16 Write Multiple Registers otherwise the most significant register should be written first followed by the least significant register to avoid any anomalies ELKOR TECHNOLOGIES INC Page 5 WattsOn Mark Il LOGGING GUIDE 2 CONFI GURI NG THE LOG The WattsOn Mark Il can be configured to save any number of its registers at configurable intervals into a downloadable log file The device can be configured to log until the Flash memory is fu
8. ge lt None gt v 0 ELKOR TECHNOLOGIES INC Page 6 Open Configuration Save Configuration 5 Save Conf Logging Configuration Logg Readfrom Device C3 Wiiteto Device Logo hana Log data every 10 Start Address n WattsOn Mark 11 LOGGING GUIDE average line to line voltage average current average system power factor and frequency All of these registers are in the same block and contiguous Enter the lowest address of all of the registers in the block which is Ox200 for total active power and enter 16 for the register count There are 8 registers in the list and they are all 32 bit registers so a count of 16 is required Example 3 Suppose logging both real power and net energy consumption is required These registers are in different register blocks For the first block enter Ox200 and 2 as in example 1 For the second block enter Ox1100 for the starting address and 2 for the register count Register addresses can be entered manually or selected from the drop down list for convenience The more registers selected for logging the faster the space available will be consumed Once all of the desired register blocks are configured click on the Write to Device button to send the log configuration to the WattsOn Mark II device 2 4 Selecting Logging Mode To begin logging a logging mode must be selected The logging mode determines what to do when the log s
9. ll or to log continuously deleting the oldest entries as new ones are added The procedure is described below 2 1 Changing Logging Settings The majority of logging settings can only be changed while logging is disabled and there is no log saved on the device If logging has not been used before the settings can be changed immediately proceed to section 2 1 Changing Logging Settings If logging is currently enabled it must first be disabled before proceeding Set the Logging Mode drop down box to Logging Disabled The logging frequency can be changed whenever the log is disabled regardless of whether there is a pre existing log file saved on the device or not If a log has been saved on the device i e the Log Size field reports something other than No log on device it must be erased before the list of logged registers can be changed If necessary download the log first see section 3 Downloading the Log and then click the Erase button to remove the log from the device The other settings can now be edited as desired 2 2 Selecting Logging Frequency Choose the frequency at which to add entries to the log The Mn frequency can be set between once every second up to once every 18 hours 64800 seconds For a single register block these times are accurate to 1 second Ex Open Configuration E Save Configuration Save C Logging Configuration L To choose the logging frequency enter a number i
10. minals of the device and throughout the connected line circuits during normal operation These voltages may cause severe injury or death Installation and servicing must be performed only by qualified properly trained personnel Elkor Technologies Inc Elkor reserves the right to make changes to its products and or their specifications without notice Elkor strongly recommends obtaining the latest version of the device specifications to assure the most current information is available to the customer Specifications and manual are available at http www elkor net Elkor assumes no liability for applications assistance customer s system design or infringement of patents or copyrights of third parties by or arising from the use of Elkor s devices ELKOR TECHNOLOGIES INC SHALL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES SUSTAINED IN CONNECTION WITH ELKOR PRODUCTS EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW FURTHERMORE ELKOR NEITHER ALLOWS NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY SUCH OBLIGATION OR LIABILITY Although the information contained in this document is believed to be accurate Elkor assumes no responsibility for any errors which may exist in this publication ELKOR TECHNOLOGIES INC Page 1 WattsOn Mark Il LOGGING GUIDE TABLE OF CONTENTS Installation Considerations sise I WARNING a 1 Limitation OF Liability sects rire
11. mple Configuration For example suppose the device is configured to log two parameters the Net Total Energy register Ox1000 and the Total Active Power register Ox100 every 1 minute To do this the following registers are set to the values indicated in the table below For this example the 32 bit integer versions of the registers are used Register Offset Value Notes Logging Frequency Ox400E 60 Represented in seconds 15 Block Offset 0x4020 0x1000 Address of the first and only register in the block Net Total Energy 15 Block Length 0x4021 2 Length of the block Because Net Total Energy is 32 bits long 2 registers are required 2 Block Offset 0x4022 0x100 Address of the first and only register in the block Total Active Power This register is not continuous with the previous register 0x1000 so two separate blocks are required 2 Block Offset 0x4023 2 Length of the block Because Net Total Energy is 32 bits long 2 registers are required Suppose that logging is started at January 1 2015 at midnight At this time the total active power is a constant 12 kW and no energy been accumulated previously The log is started by writing a 1 to the Logg ng Mode register at address 0x4013 After one minute has passed and the log is downloaded it will be in the format illustrated below For each parameter its name is given followed by the decimal value of the parameter on the next line followed by the value of each
12. ncy from 1 second to 18 hours Log downloadable via Modbus 2MB of storage space available for storing log entries 1 2 Modbus Commander Logging features of the WattsOn Mark II may be configured with a Windows PC connected to the WattsOn Mark II either via a USB to RS485 cable or an Ethernet gateway device Logging configuration can be done using the free version of the Modbus Commander application available from Elkor s website at http www elkor net To connect to the WattsOn Mark via Modbus Commander follow the procedure outlined below The procedure assumes that the WattsOn Mark 11 is connected to a PC a USB to RS485 converter using default settings but it is possible to connect using serial or Ethernet with a variety of settings Download Modbus Commander from Elkor s website http www elkor net Run the installer for Modbus Commander to install the program onto your computer Run the application from the desktop shortcut created by the installer Select the serial port on which the WattsOn is connected by selecting Setup Serial Settings Port and clicking on the appropriate port see screenshot below LE Modbus Commander Registers Devices Format Setup Window About Modbus Address 4 Serial Ethernet Serial Settings Protocol Ethernet Settings Port None Baud Rate gt COM2 High Speed PCI Serial Port Parity COM6 High Speed PCI Serial Port
13. nto the field Readfrom Device 2 Wrteto Device labeled Log data every and select the appropriate units Log data every L seconds minutes hours from the drop down box to the right In the example on the right the logging frequency is set to once None a every 30 seconds The more frequently data is logged the faster the space available to will be consumed 2 3 Selecting Registers Any register the WattsOn Mark 11 can be logged For WattsOn Mark I Logging Manager complete list of registers see the Register Map section of the WattsOn Mark II manual Registers are grouped together into blocks for efficient reading Up to sixteen blocks of registers may be configured for logging Each register block may contain up to 125 registers each A register block consists of a starting address and a number of registers in that block Note that many of the WattsOn Mark 11 parameters are 32 bits meaning they occupy two registers in the register map Example 1 Suppose logging only the total active power is required Total active power is a 32 bit register at offset Ox200 lt None gt Y 0 Enter the starting address as 0 200 and the register count as 2 Nymber of Registers The count is 2 because the register is a 32 bit register sci lt None gt y 0 Example 2 Suppose logging all of the following parameters is required Total active reactive and apparent power volta
14. oad button to begin downloading Modbus Commander will ask for a directory to save the resulting file into and then the log will be downloaded This can take some time if the log is large ELKOR TECHNOLOGIES INC Page 8 WattsOn Mark Il LOGGING GUIDE 4 MODBUS I NTERFACE The features of the logging module can also be accessed over the Modbus protocol using the device s RS 485 port See the WattsOn Mark 11 s manual for details on communicating using the Modbus protocol 4 1 Register Map WattsOn Mark II models with the logging module add the following additional registers to the device register map De elute a Module ID 0x4000 128 S R IDLM A string indicating the name of this module the integrated display and logging module Clock 0x4008 32 U RW The battery backed real time clock value expressed as the number of seconds since January 1 1970 at midnight a standard UNIX timestamp Entry Count Ox400A 32 U R The number of entries in the log Entry Length 0 400 16 U R The number of registers occupied by a single entry in the log Log Space Used 0x400D 32 U R A percentage indicating how much space in the log is used A value of 10000 represents 100 00 full Logging Frequency Ox400E 32 U RW How often to create a new log entry expressed in seconds Log Page 0x4010 16 U RW 0 The page of the log currently available at register 0x4100 L
15. og Page Count 0 4011 16 R The number of pages in the log Approximate Entries 0x4012 16 U R An approximate count of the number of entries per page If 250 is not a multiple of the per Page entry length a page may also contain a partial entry Logging Mode 0x4013 16 U RW 0 0 for Disabled 1 for Log Continuously and 2 for Log Until Full Log Full 0x4014 16 B R Indicates whether the log is completely full Wipe Log 0x4015 16 When 0xA5A5 42 405 is written to this register the log is completely erased SES SCC 5 Reserved for future use These registers output 0 when read To ensure compatibility with future versions these registers should not be written to Reserved Ox401F R Ist Block Offset 0x4020 16 U RW 0 Register offset of the first register in the first block to be logged 1st Block Length 0x4021 16 U RW 0 Length of the first block to be logged 2nd Block Offset 0x4022 16 U RW 0 Register offset of the first register in the second block to be logged 2nd Block Length 0x4023 16 U RW 0 Length of the second block to be logged 16th Block Offset 0x403E 16 U RW 0 Register offset of the first register in the last block to be logged 16th Block Length 0x403F 16 U RW 0 Length of the last block to be logged 4 2 Downloading the Log The log is broken up into pages of 250 registers each The raw binary data in the currently selected page is available in registers 0x4
16. pace is full The two available modes are described in the table below Mode Description Overwrite Old Entries Logging continues indefinitely Once the flash memory used to store the log is full old entries are overwritten Until Full Logging stops when flash memory is full Select the desired Logging Mode drop down box on the top ba a a right hand side of the window Once selected logging begins A Save Configuration As If Logging unit log is full was selected the drop down Logging Status box will automatically revert to Logging Disabled once the Logging Mode space has been completely filled At that point the log can be downloaded erased the mode can be changed to Log Size Overwrite Old Entries 20 Clock Logging Disabled ET a Logging until log is full Z0TFUZUI TODO syne 26 ELKOR TECHNOLOGIES INC Page 7 WattsOn Mark Il LOGGING GUIDE 3 DOWNLOADI NG THE LOG Once data has been logged it can be easily downloaded to a PC using Modbus Commander see screenshot on the right Download Log o Time Entre Log J The Time field allows the log to be partially downloaded based on the timestamps of the log entires and the current system time File Type CSV for spreadsheets etc csv x Register Formatting The log can be saved in two formats described below According to register type recommended As decimal num
17. rechargeable and should not need replacement The clock must be set by the user before starting logging to obtain accurate timestamps It can be set with the LCD display if present over Modbus or using the free version of Modbus Commander The clock contains a battery to allow the time to be retained despite power failures The WattsOn Mark 11 will retain the current time during a power failure of at least one month in duration If the device is unpowered for longer than one month check the device s clock to see if it requires setting before starting a log Note the WattsOn Mark 11 may require up to 48 hours to fully charge the battery if it has not been charged for a long time 1 4 1 Setting the clock using the built in display if present If the WattsOn Mark II model includes a display it can be used to quickly set the time From the main screen press the Back Menu button to enter the main menu Use the Down button to select Configuration with the cursor and press the Forward Select button to confirm Press the Forward Select button again to enter the Date and Time Settings screen Press the Forward Select button to enter the date editor Use the Up and Down buttons to increase or decrease a digit and use the Back Menu and Forward Select buttons to move left and right between digits 5 When finished editing the date press the Forward Select button until the cursor leaves the field SINO See the WattsOn Mark II Display Guide for d
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