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Web Energy Logger (WEL) User Guide: Rev 4.0.2

1. s just not convenient to have one single long bus for all the sensors In these cases one incoming pair might need to branch out to several sensors throughout the house eg at thermostat locations Here the various pairs are connected in parallel to form a Star network You MUST limit the number of stars in your system by deciding on a central hub location and only fanning out from there Technical note If you don t want to use my sensors you can roll your own using raw temperature sensors from Maxim Dallas Currently the WEL supports 5 different temperature sensor types These are the older DS1820 and the newer DS18S20 DS18S20 PAR DS18B20 and DS18B20 PAR precision temperature sensor families The most minimal configuration for a 1 Wire device is the parasitic power mode where the device steals power from the data line In this mode the device s VDD pin must be tied to the GND line for noise immunity Special versions on the DS18S20 and DS18B20 devices are sold where this connection is made inside the device thus eliminating any need for external wiring The PAR suffix is added to the part number to indicate this feature Here are some sample device pin outs COT DUNI VIE AW TO 92 DS18B20 3 2 _ Current Switch The Current Switch CS from CR Magnetics is another popular sensor for the WEL As it s name implies the CS is a switch that turns on when it senses current This is
2. 0 000000 E n M 20 TEDSOOC 0 241 Poss eet oo0000 All that remains to be done is to give a Name to the TED5000 0 device In this case it has been named House because it represents the whole house power consumption The name can be anything that conforms to normal Device naming rules See that the current value is 5902 waits Notice also that the Treatment Letter has been set to P which is reserved for IP based Power measurement devices For the TED5000 daily and monthly power is read directly from the device It s important to set up the TED Gateway s Meter Reading day of the month to be 1 if you want the reading to be reset at the beginning of each month Upper case P will cause the accumulated power usage to be displayed in Watt Hours If you d like this to be done in Kilowatt Hours change the P to bl mI a p For more information about the TED5000 unit visit http www TheEnergyDetective com 4 9 2 eGauge The eGuage power meter supports up to 12 circuits per meter but multiple meters can be cascaded to gain additional circuits In eGauge terminology each circuit is called a Register and these registers are given names by the user The WEL is set up
3. Each WEL is shipped with a standard Network configuration default IP address is 0 0 0 0 Network Mask 255 255 254 0 Gateway 192 168 1 1 Name Server 192 168 1 1 The 0 0 0 0 IP address causes the WEL to obtain a dynamic IP assignment from the network Host The LocatelP exe program can be run from a networked computer to determine the IP address assigned to the WEL A predefined Fixed IP can be configured using the LocatelP program See section 2 2 for more details Page 30 of 36 6 3 I Button Link A robust 1 wire interface from www ibuttonlink com is used to drive the 1 wire sensor network This interface supports mixed network topologies bus star branch and the Strong Pull Up function required for parasitically powered devices Its considered an Advanced 1 Wire Interface The 1 Wire signals are available on J3 Although only 2 signals are required for 1 Wire operation 1W Gnd and 1W Bus two additional power options are provided 5V Reg and V Raw See section 6 1 for more details on the two power signals If all the sensors run in parasite mode neither of the power lines is required The software is able to detect a broken or shorted 1 Wire bus and these conditions are displayed on the BUS status bubble which will flash an error code IN RED if there is a problem 6 4 Pulse Counter Flow Watt Meter interface The WEL 4 0 has six pulse inputs accessible from connector J5 These are typically used for wattmeters
4. Each counter input consumes a single Device slot within the WEL and these devices are identified by their addresses Pulse1 to Pulse6 The raw values displayed for these devices is pulses per minute but the WEL s calibration page can be used to convert these to any desired engineering units In addition by using the appropriate treatment letter see section 4 2 you can ALSO generate total counts over time or even hourly accumulations Page 8 of 36 4 0 WEL Configuration pages Section 2 3 introduced the WEL s built in home page You access this page by entering the WEL s IP on you home web browser followed by 5150 At the bottom of this page are a series of hyper links to specialized configuration pages Each of these pages is described below 4 1 Display Live Data WEL View NAMED Devices 0 Errors Dev Address TypeNameFV Raw Scaled Day D Month M O Runt 1 Pump 50 000000 lo oooooo ae 8 Pulse 4 GPM x5 902 000000 po00001 172600 2318 1726002319 755370 16 2812CE2902000007 40 Cold 5 20 937498 69 687492 47 2eF3B1290200001B 40 Hot 5133 812496 92 862495 M8 lai7t aie 240 Deltatly s 22 549339 22 549339 49 d18L daL 240 BTUH v5 26 441355 13220 676700 1469 2625706692 262200 This page is used to show the live and accumulated values for all of the WEL s devices that have assigned names Unnamed devices are hidden Each row in the table is a Device Slot Each slot h
5. Encapsulated sensors sold by OurCoolHouse are designed to be robust and reliable Since the sensors have been sealed against moisture intrusion it s impossible to place the sensor chip in direct contact with the surface to be measured but an opening on one side has been provided to permit better heat transfer The first step in getting a good reading is to provide a SOLID thermal path from the item to the sensor In many cases the item to be measured is a copper water pipe In this situation it s desirable to locate the sensor as close to the heat source as possible For example if you were measuring the output temperature of a solar collector you d want the sensor right at the output of the panel Ideally you want the sensor located on a section of pipe that has turbulent flow The best place is just AFTER a bend in the pipe You want to ensure good thermal conduction with the pipe so you should clean off any surface corrosion or gunk There are several options for producing a solid thermal contact A simple way is to use a hose clamp to strap the sensor to the pipe If you added some heat sink compound under the sensor it would be even better Cable ties would also work but it s hard to get them really tight so the contact might not be as effective Another option would be to use thermal epoxy to glue the sensor to the pipe Try to get as much of the sensor in contact with the pipe as possible Once the sensor is attache
6. On Of GPM Pumping Status Live Data Set Live Data Name XA R G B Format Date eee 40 255 0 0 text Time 20 55 0 255 0 BO oe os 20 100 0 0 255 20 100 0 0 255 Tenp 3 1 F 3 1 F 5 2 Local and remote IPs One cool thing on the Setup page is a display of the WEL s local and Remote IP addresses Click on the local IP to access the WEL from within its Local Area Network Click on the Remote IP to access the WEL from the Internet Note Remote access only works if you configure the Port Forwarding on your router to forward all incoming port 5150 packets to the WEL s IP address This will also require that you assign a Fixed IP to the WEL Page 26 of 36 5 3 Viewing the Last Post The first box at the top of the screen shows the last data that was posted by the WEL This is useful during debugging to ensure that you are getting data check the date amp time sections and to verify the names of posted sensors 5 4 Setting the LogOrder The first thing you need to do is define which sensors will be logged and in what order This is a good time to sit down and give names to all the sensors you intend to have attached to the WEL Start a document or spreadsheet to keep track of the names and functions These names MUST match the names you define on the WEL but don t worry if you haven t installed them yet Just give them a name and add them to the LogOrder Each time the WEL posts data the values of t
7. Treatments This page is used to set the Name and Treatment mode for each device slot For explanation of the ID Type Address and Found columns refer to the descriptions found in section 4 1 Each slot can be given a name of up to 16 characters Spaces cannot be used in a name and if they are the Tee system will replace them with an underscore _ character This page has a Scan Bus button which can be used to force the WEL to rescan the 1 wire bus to look for new or missing devices When first wiring an installation use this screen to quickly identify and name new devices as you connect them up for the first time The process is as follows 1 Add a sensor to the bus 2 Click Scan Bus to get the sensor s address 3 Enter a name for the new device that appears at the end of the list Repeat 1 3 for all sensors Treatments Each device can also be assigned a single Treatment letter This letter defines if and how the scaled device values should be processed to provide some form of long term analysis Review the image below to see several Treatment letters H N C Page 10 of 36 WEL Assign 1 Wire Device Names Assign a name to all devices that are to be posted to the logging Website oet the desired Treatment Mode letter to indicate if how the device value should be further processed see WEL User Guide more information about Treatments ae ame Treatment Letter a a dare than 16
8. a great way to detect when a device like a pump or heater element is on The beauty of this kind of sensor is that there is no electrical connection with the actual device being monitored so it s very safe One of the power conductors of the device being monitored is passed through the hole in the CS When more than 350ma of AC current is detected in this wire the CS closes an optical output which can be detected any of the 8 run monitor inputs on the WEL Each CS has two output wires The EG black wire is a common ground ha BS that is connected to either of the a run monitor COM inputs on either end of the terminal strip on the WEL The red wire is the actual signal wire and each of these is TT connected to a separate run monitor input 1 8 This photo shows 3 CS s connected to the WEL as Run inputs 6 7 amp 8 If it s not convenient to wire a CS directly to the WEL or if you need to monitor more than 8 devices have developed a 1 wire interface for the Current Switch This interface is wired to the CS and provides the standard Black Yellow wire pair that can then be connected anywhere on the 1 wire bus This configuration can provide the ultimate in wiring convenience and flexibility call this my 1 wire Current Switch p n WEL CS 3 3 Power Watt meters The WEL has six inputs that can count pulses indicating power consumption Although the WEL can work with most pulse output meters only one bra
9. chars Mies NE ae j ons below O Runt a x 0 000000 No 4 Runz l 9 000000 n if Rung i a U UOOOOU 8 Pulsel A mm 0 000000 HOOOO0 m 4 d F las fete 13 mA2 5 Y G 000000 16 2812cE290200000740 cold Y 69 657492 687492 gt mo 17 28F3512902000015 40 a0 Ho Y 92 749992 o 18 18 d17L d16L 2 240 DetaT Lee y fea 515144 n 19 d18L deL 240 Brun Btu y o oo f All possible treatment letters are defined below but here is a quick summary of this screen Pump is a Run Monitor input that signal when a solar circulator pump is on So this has a value of 1 or 0 depending on if the pump is running or not This device has a treatment of H Hourly Accumulation which indicates that the system should accumulate daily and monthly run times in Hours GPM is a pulse input but from a flow meter This device generates one pulse per gallon of water flow So since counters are only read once a minute the scaled device value will represent Gallons per Minute This device as a treatment of C counter which means that the system will simply add the value to a running total each minute and calculate daily and monthly total gallons BTUH is an expression which calculates energy being collected by a solar panel Its is scaled to read BTU per Hour BTUH This slot has a treatment of H Hourly Accu
10. create a backup of the UserBlock dat file but it will attempt to upload it to the WELserver com website for off site storage This function does work but there is currently no way for users to access the offsite storage to use the backup file However this access will be added in the future so it s probably a good idea to back up your settings there as well 4 12 Set Date and Time HOME Live Data Devices Calibrate Expressions The WEL has a real time clock that is used to timestamp data posted to the web and through the serial port This WEL Set Date amp Time clock should be set when you receive the WEL but it may Parameter value be set to the wrong time zone This page canbe used to Wear fos set the date and time Simply enter the appropriate Month f2 information and click Submit Day f Hour fis Min 4 Sec o Submit Reset 4 13 Soft Boot the WEL If you ever need to reset the WEL but don t have access to the physical hardware during a remote connection then you can use this page to force a software re boot This will have the same effect as a hardware reset It will cause the WEL to reload its program from flash and start with a clean slate Since this is not something you want to happen by accident the page requires a second button click to confirm the reboot HOME Live Data Devices Calibrate Expressions OCH WEL Reboot WEL Reboot the WEL Once a reb
11. input signal through a precision 150 Ohm resistor and measuring the voltage drop across the resistor A 20mA input current will generate a 3 0 V voltage which is within the WEL s 3 3 V voltage range The raw device value will be displayed as mA but the WEL s normal calibration page can be used to scale the sensor value to any desired engineering units lf a user desires to measure a voltage rather than a current they are free to add a suitable external series resistance to convert their voltage into a current less than 20 mA Caution must be taken to ensure that the sensor being measured is capable of driving a 20mA load Page 31 of 36 6 7 Serial communications For the purpose of local data logging the WEL has a serial output that sends live sensor data to an external device Previous WEL s could send a RS 232 signal to a logging PC but this was not compatible with low cost FLASH based data logger like the Logomatic from SparkFun com The WEL 4 0 now sends TTL serial data on connector J4 which can be wired directly to a 5V powered device The serial output is only provided for use with earth isolated devices Warning Any device that connects the 0V common to earth potential like most desktop PCs with a grounded chassis should NOT be used with the WEL This earth connection will make the 1 Wire bus prone to attract lightning strikes ie the 1 wire bus will become an effective lightning rod Although the wiring fo
12. may be added at the start of every transmission Tail Any 7 printable characters may be added at the end of every transmission This will be before any final EOL characters Delimiter ASCII This is the ASCII value decimal for the character you want to use to separate the device values Suggestions are 44 comma or 9 tab EOL Char1 ASCII This is the ASCII value decimal for the first End Of Line character to be put at the end of the transmission A typical value would be 13 CR EOL Char2 ASCII This is the ASCII value decimal for the second End Of Line character to be put at the end of the transmission A typical value would be 10 LF All the available devices are then listed on the page Place a Y in the box next to a device if you want it included in the serial stream Al devices named and un named are shown in the list because there is no requirement for a device to have a name in the serial log If a device has accumulated values associated with it these will also be output Page 22 of 36 4 11 Backup Restore System Settings UserBlock dat software Rev 4 02 added the ability to save and restore the WEL s configuration file to disk This file called UserBlock dat holds all the system settings Device name assignments Calibration data Expressions and Treatment values It permits a FULL restoration of the WEL at the time the backup was made Click on the Backup Restore System Settings link to bring up the following
13. start adding values to the image Any sensor value being posted by your WEL can be added to the image including the post date and time Page 28 of 36 WEL9999 Image Text Return to main page Posted Name X Y Pos Color Format leg Ti 100 150 255 0 0 Bedroom 3 1 F Dae fon foo tem Fe os po tem tem foo ozs emeen Pe o ao oeo Pre ora po pozon ee es es ee C es ff es es ee E Save Changes 5 7 _ __Watching your data Remember that there is a public web page that includes your system image and all your charts address is based on your Site ID The URL format is http www W ELServer com WELXXXX Where XXXX is your Site ID While making changes to your setup you may want to keep this page open in a new window to see the results of your settings Send this URL to your friends and colleagues to show off your data Since this is a public page images from this page can also be included in your own custom website Date and Time are always the best to start with and the default Owner Setup page has these already Just change the position to suite your graphic Remember the System diagram is only updated once a minute so allow enough time between changes to see your results Watch the time on your image change to tell if the image should have been updated Posted Posted Name Value AirTemp 70 0 Date 14 12 2007 oo Net Out_D Net_Out_D 0 00 Net_ Out Mio 00 Time 42 32 29 Zon
14. to the current one if one exists now _Gg Number of minutes since the last error will wrap at 32768 Bb Number of minutes since the last WEL reboot will wrap at 32768 Appendix E Treatment letters vs Accumulation letters Starting at Software version 4 0 the nomenclature for the additional long term processing that the WEL can perform has changed What used to be called Accumulation has been renamed to Treatment This change was made because the long term processing has expanded way beyond the original concept of accumulation run times and power usage The table below shows the new treatment letters and what accumulation letters they replace Treatment f No Change y No Change Y y No Change o No Change No Change Page 36 of 36
15. to verify incoming pulses from Watt or flow meters A Analog input over limit indicator Red indicator lights when the input current voltage exceeds full scale range Fault condition MUST be removed as soon as possible to avoid damage 3 0 Connecting WEL sensors 3 1 1 Wire sensors The WEL utilizes the innovative 1 Wire network developed by Dallas Maxim This network enables a large number of sensors to be attached to a single twisted pair cable The term 1 Wire is somewhat erroneous since the network actually utilizes 2 wires but since one of these is a simple ground wire the other 1 wire supplies both power and communications All 1 Wire devices have a unique 64 bit address that is used to differentiate the various sensors on the bus Since this address is cumbersome to use the WEL provides a means for assigning more meaningful names up to 15 characters to each sensor eg T1 T2 Zone2 Since all the sensors are physically identical names are assigned by adding sensors to the net one at a time As each sensor is added it shows up as an un named device that can then be named Address Name pairs are stored on the WEL in Flash memory so once a name is assigned it sticks to that device The most reliable way to hook up your 1 Wire sensor array is to take one long twisted cable and run it from the WEL past all the sensors This is what provide in the basic WEL Starter Kit In this case the 1 Wire bus is a 40
16. use to test for the Less Than condition Filters The WEL can remove the noise from a device value by applying a simple filter to it Each six second poll the filter looks at the difference between the sensor value and the filter output and applies a fraction of that change to the filter value The specific fraction that is applied is set by the filter s Time Constant When setting up a filter expression Input1 is the value to be filtered and Input2 is the Time Constant Use F as the operator The resulting expression is the filtered value The next filtered value can be defined as FilterNext FilterLast SensorValue FilterLast TimeConstant Or FilterNext FilterLast Input1Value FilterLast Input2Value In the extremes a filter with a TimeConstant of 1 0 will react instantly but a filter with a TimeConstant of 0 0 will never change So all valid TimeConstant values fall between 0 0 and 1 0 Sample and Hold In many systems the value of a sensor is only valid when something else is running eg a solar panel circulator pump When the pump is not running the temperature being measured will slowly fall to ambient This may cause charts to be hard to interpret One way to deal with this problem is to use an expression to multiply the sensor values with the pump s RunMonitor This will cause the resultant value to jump between Zero when the pump is not running and the live temperature
17. value may be zero Likewise if you are zeroing out an expression if a certain pump is not running you don t want to misuse that zero as the sensor minimum The easy way out is that the WEL ignores a sensor value of zero when it comes to testing minimums Never fear if your centigrade temperature sensor passes through zero you will probably see 0 1C and 0 1C so missing 0 0 won t be a huge problem Sample S_ When using the Filter and Min Max treatments it s sometimes useful to be able to seed the filter value with the current sensor value eg so that the monthly temperature filter starts at the current temperature rather than 0 To do this set the device treatment to S for at least one full minute Sometime during that minute the WEL will sample the current sensor value and load it into both the Daily and Monthly stored values Now set the device back to whatever treatment you d like to use This is similar to setting the treatment to N for None for at least one minute which will reset the treatment back to zero Wind W Although don t go as far as recommending the AGG 1 Wire Weather Instrument because the interface seems a bit unpredictable if you already have one and would like to hook it up to the WEL then it s possible to turn the 4 channels of wind direction information into a wind sector and heading Find the 1 Wire device with a Device Type of 32 and set the Treatment to W The WEL will now p
18. 31 6 7 Ser Lenn e ONS a E E EE EE T EE EEEE E TEE EEEE 32 Appendix A Devic TYPE COGGS sirsniairrir arete ER EE SNOER EETA 33 Appendix B Compatible Third Party 1 Wire devices ccccccccceecsecnecseeceeceeceeceectensessessesseeseeeeeesenes 34 Appendix C Temperature Measurement tips cccccccecceccncceeceececsecseeseeceeceensensensessessesseeeeeeeeseenes 35 Appendix D Diagnostic Data included in WEB pOSt cccccecsecseceececceccecseeeeceeceeceesecsesensesseseeaeeees 36 Appendix E Treatment letters vs Accumulation I tt IS cccccc ccc ecnececceceececeececeeceeeeeeneneresnenetes 36 Page of 36 1 0 Overview The Web Energy Logger WEL from OurCoolHouse com is designed to monitor and log the energy characteristics of a building The basic WEL unit can read a large number of networked sensors temperature amp contact closure 6 pulse output devices watt meter or flow meter 8 local contact closures and two 4 20mA current loop inputs Filtered data is presented on a series of web pages hosted directly on the WEL as well as posted to the WELServer com Website via a standard 10 baseT Ethernet connection WELServer com combines the live data with graphic images to generate system snapshots that can be displayed on any user s website Live data is also stored in monthly log files and used to generate trend graphs Logs can be downloaded by users and imported into data processing packages like Excel This ma
19. I ll do it there rather than in this document So don t say didn t tell you Page 25 of 36 Web Energy Logger Tech Support WEL Logging WEL Display What ts the WEL Setup Ovenmmew Set Live Data How does it work set Log Order Set Trend Graphs Purchase Online Set Email Alert Set Site Profile User Map Info OurCoolHouse Download Logs WEL9999 Setup Overview gt My Public Page lt lt Click to see your live data This page is a snapshot of your WEL data and settings For more help download the latest User Manual from the Support Files page Ways to access the WEL Local WEL Admin 192 168 1 31 5150 You need to be connected to the same networks as the WEL Remote WEL Admin 74 125 219 233 5150 Requires Port Forwarding on your router Last Post Check here to see all the data being sent from the WEL Uu WEL9999 amp Pp apassword amp li 192 168 1 31 amp Vv 2 16 amp Ee 08 Cc 0 amp LI 14 amp Gg 673 amp Bb 7314 amp Date 01 27 20098 Time 00 11 22 amp S9 57 3 amp S5 57 0 amp A1 55 4 amp T1 53 6 amp DeltaT 2 0 amp LBTUH 1 2 amp Pump 1 0 amp GPM 3 1 Email Alert Set Clear No Pending Alert Email Alert Alert when AirTemp gt 70 Log Order Set Log Order Date Time 9 55 Pump A1 Trend Graphs Set Trend Graphs Name W H Time Span Lines Units Caption OutsideAir 900 400 7 Hours A1 Green F Air Temp Green Pump 900 400 hours Pump Black GPM Green
20. In addition there are two LAN status indicators that are not identified on the front panel but are located next to the LAN connector The LAN indicators are Network on LED on the RMC3700 module next to the cable jack Lights solid Green when an active network cable is attached Network talk LED on the RMC3700 module next to the cable jack Flashes Red when data is being sent received by WEL The Status Bubbles are PWR WEL Power Green means the WEL has power and should be running BUS 1 Wire Bus Activity Green flash every 6 seconds when 1 Wire bus is being polled Red flashes indicate the current error code number 0 No errors 1 1 Wire interface failed 2 No 1 wire devices found 3 Short circuit on 1 wire bus 4 Timeout talking to 1 Wire interface LOG Serial Log Activity Green flash when serial data is sent out J3 Normally not active P A Pulse Analog data activity Green flash indicates that WEL is reading pulse counters and Analog inputs Should flash approximately once a second Does not indicate actual pulses WEB Web Post Indicator Green flash while WEL is sending data to WEB Red flashes indicate error code number 0 No errors 1 Generic network error 2 DNS Server not found 3 Web Post timed out Page 5 of 36 4 Failed to synch to external time 5 socket Not Connected Internet or Server error P Input Pulse Indicator Green indicator toggles on off each incoming pulse on Pulse1 Pulse6 Use this indicator
21. Status Bubble on the WEL will start blinking rapidly This is a visual reminder that you are no longer posting data and that you should re enable scanning as quickly as possible Now the WEL will display a new screen that has an Enable Scan button as well as Delete buttons for each of the available devices Physical sensors that contain more than one device must be deleted as a group so next to each Delete button is text indicating how many device slots that button will delete Each time you click a Delete button the screen will refresh to show the new delete list WARNING Make sure you Enable Scanning once you are done deleting devices Note In most cases there is no point in deleting a 1 wire device that is still present on the bus since the next time the WEL Is reset it will just add it back to the list 4 7 _ System Configuration The System Configuration page is used to set general properties for this WEL installation Page 17 of 36 Each WEL has its own unique Site ID and Password that is used for posting data These values will be set on your WEL before it s shipped The Host Domain and Post page are also set before shipping but these can be changed if you want the WEL to post you your own Web Page Proxy server information can also be added if your ISP does not provide direct access to the internet eg within a school system 4 8 Configure IP Addresses This page enables the
22. Web Energy Logger WEL User Guide Rev 4 0 2 Rev 4 0 boards Rev 4 02 software Revised 5 10 2010 Table Of Contents 7 0 WOOW ee ee E oe EP oC Ce EC TE eee ee ee eee 2 2 0 Getting Started so seteccerstitencisnecinemnnsetnecseinadinnoantaidecapwcsiauesesilotaseecdnecaptiverasneuineestaddescewesdsnestedesenreqtouscos 3 2 1 PVP aa ers eee eer A este vc cee come eats lene 3 2 2 locating the WEL s IP Address i lt asscevecavacesscaeacavteavaceesvasteasneavacesaedbacasteavaceeavattaasnearecesseanawentes 3 2 3 Using your browser to configure the WEL cccccccccccccccccccceeeeeeeeeceeeeeceeeececeeeceeeeeeeeeseeeeeeeeess 4 2 4 LE Dincic alors and Pror Code onere eae EE E 5 3 0 COT CE WEC SO SO ea E E E E E raed 6 3 1 EWI O a EE E E E EE EEE 6 3 2 Cr IC rE E EE E A EE 7 3 3 P wer Watt meters scrseienis enmaren anea aa an eie aa deise ieia 8 4 0 WEL Configuration pages cccccccccccceecsuccuecsuccuesaucceesaueseesaueseesauesesauesensaueseesauennsaueseesauenensaness 9 4 1 1B SESS 9 Fe 3g Bi e Di r een E E ec ee ene ome 9 4 2 Name Devices aiid Set TTC AUN GIS ics ccscccedusazedonccsunoesesssaumestendeeoasasasiattatwoeseassunastendemmuanaszants 10 4 3 Calibrate Devices Scale amd OFSET casaesyaceisnesysceiscosencsedesceusseessnteceseaseaseedensantssgeenisesseserecets 13 dA Add dit pression eirinen oinn E EE ANERE EU GEOR EAEri pi raie i 14 4 5 Edit Treatment Values ccccccccccccccccccccccccccceeseeeccccceeeceaesseeeecceeess
23. _ J0 S 40 DS18B20 Temperature Sensor _ _ J0 S 240 Expression SSS O Page 33 of 36 Appendix B Compatible Third Party 1 Wire devices The following devices are compatible with the WEL 1 wire and the WEL software 1 Devices based on Maxim s DS1820 DS18S20 PAR or DS18B20 PAR temperature sensors eg Ruggedized temperature probe from www embeddeddatasystems com 2 Devices based on Maxim s DS2438 Battery monitor eg Hobby Boards com humidity solar sensor http www hobby boards com catalog product_info php products id 57 Note this sensor will show up as two devices The first device is type 38 and corresponds to the measured Voltage The second device is type 15 and is the measured current 3 Devices based on Maxim s DS2423 Dual counter eg Hobby Boards com Dual Counter Board http www hobby boards com catalog product_info php products_ id 42 Note This sensor will show up as two devices Counters A and B will show up as types 29 amp 6 respectively 4 Digital Input devices based on Maxim s DS2406 I O port Note The WEL only interrogates the A channel of this device The optional B channel is ignored Page 34 of 36 Appendix C Temperature Measurement tips With economical temperature sensors like the ones used by the WEL it is difficult to obtain highly accurate temperature readings However if due care is taken when attaching sensors it s possible to get very respectable readings The
24. aily and monthly averages But to do these properly would take more memory than the WEL has to spare As a compromise I ve added custom filters set up with very long time constants that can be used to approximate daily and monthly averages If the treatment letter is set to F then D and _M will correspond to a daily and monthly filter A treatment of f will result in _D and _M correspond to a 2 hour and 8 hour filter The advantage of using treatments to do filtering instead of expressions is that the filter value is maintained in flash memory so the filter is NOT reset by a power outage or reboot Min Max The WEL can maintain the Min or Max value of a device over a day or month Maximums are simplest so I ll cover them first If you set the treatment to Y think squiggly greater than then D and _M will hold the maximum sensor value for the day and month At the beginning of each period the Max is set to the current sensor value since it is the Maximum so far OK that was easy but Minimums are a bit trickier If you set the treatment to think squiggly less than then D and _M will hold the minimum sensor value for the day and month The problem is that there are several times when the value of a sensor may show up as zero for some unrelated reason and we don t want to set the minimum to zero incorrectly Examples of this are when the WEL first powers up if the sensor has not yet been polled successfully its
25. as several attributes as indicated by the column headers These are defined as follows Dev Device ID As each device is added to the system it is allocated a sequential device Id Once assigned a particular device will keep its ID even when powered of unless the user manually deletes the device from the system see section 4 9 for details of deleting devices Address A Device Address will either be the 64bit unique number assigned to a 1 wire device or it will be a special code assigned to a virtual device by the WEL program itself In the example above addresses like Run1 and Pulse1 are virtual devices whereas the 16 character Hexadecimal numbers are actual 1 Wire devices If two or more device slots have the same address it means that there is more than one sensor in a physical package Each sensor has it s own slot but they share a common 1 wire address Type There are many types of Device Slots This number is a code to indicate the slot s function Appendix A has a list of different device types Name For a device value to be posted to the Web it must be assigned a logical name This name can be up to 16 characters and should indicate the function of that device Eg Pump for a zone pump run sensor or Hot for a solar panel temperature sensor Names ARE case sensitive so come up with a system and make sure you enter them the same way on the various configuration screens F Found When the WEL powers u
26. be a Boolean and or operation or it could be a lt gt comparison The result of the operation is saved out as the value of the Virtual Device This value can also be accumulated like other devices Expressions are created using a two step process First you do an Add New Expression and then you Edit the new expression it to set its behavior The following screen shows the process of editing an expression The Web form presents two gray areas OCH WEL Expression page Assign Simple Operator to ID Assign ConstanttoID 50 Expression Name Virtual Device DeltaTraw Constant Name Virtual device DeltaTraw Equals Data Source Equals q L ive D ay M onth Constant Value a MUST be set to a number before saving Input Device 1 s Name HighTemp UD M L Save Constant Operator amp Note use and in place of lt and gt Input Device 2 s Name LowTemp L D M IL Add New Expression Dev Expression Name Edit f 50 d23L d21L DeltaTraw Edit 51 a50L d15L DeltaT Edit E 1 i You choose simple operator or constant by filling in the required fields and then clicking the appropriate Save button Simple Operators In the example above the expression s name is DeltaTraw and the goal is for the expression to calculate the temperature differential across a heat exchanger The first text box is the Expression Name This name must be uniqu
27. ck dat and then click Restore Once the file is installed the WEL will re boot automatically to put the settings into effect Wait one minute for the reboot to complete and then return to the WEL s home page Browse then Restore WEL will Reboot Automatically Don t Forget Sensor Bus scanning is currently disabled I m Done Re enable Scanning Here you can see several options The two options that are fully functional as this writing are 1 and 3 Option 1 If you click Local Backup the WEL will send the current UserBlock dat file to your browser Your Browser should then prompt for you to save the file Select a folder where you want to place the backup and click OK You now have a full backup of all your WEL settings and configuration data This can be used to restore your current state on any WEL 4 0 unit Option 3 If at any time your WEL settings get lost or corrupted you can restore all your data from a UserBlock dat backup file Simply click the Browse button and point to the latest UserBlock dat file Page 23 of 36 on your hard drive then click Restore The WEL will upload the file and load it into FLASH The WEL will then reboot itself This will cause the browser connection to be broken so you may need to click the browser s STOP button lf you don t do a Restore operation remember to re enable sebsor bus scanning by clicking the I m Done Re enable Scanning button Note Option 2 will also
28. d it s a good idea to wrap several turns of the sensor wire around the pipe before connecting it to the bus This insures that the sensor wire is at about the same temperature as the pipe so the wire doesn t pull heat away form the sensor and affect the readings Finally the whole assembly should be insulated from the ambient air with some good pipe insulation Given these precautions and typical water temperate rate changes the readings from your sensors should all be consistent within a degree or so Page 35 of 36 Appendix D Diagnostic Data included in WEB post Several pieces of diagnostic data are included along with your device data in the packet that gets posted to the WELserver com website You can see these magic items on your online web admin screens and you may be wondering what they are They are typically a pair of matching upper lower case characters They were added primarily to help me and you to diagnose any odd behaviors that may occur from time to time It may be helpful to include some of these values in your log if you want to keep track of them Their meanings are as follows Uu Your WEL user ID used for authentication Pp Your WEL password used for authentication li Your local IP address Vv Your current Software version Ee Number of Found devices that are currently not reporting correctly Cc The current WEL error code as displayed on the Red Error LED _LI The last WEL error code prior
29. d then add it to your browser Favorites You ll be back here often The Setup Overview page provides a quick snapshot of your current configuration It shows the last post that was received from your WEL how you want your data logged what you want displayed on your System Image and what graphs you want to be generated It also contains nested links to the other setup pages where you actually edit your settings A sample Setup Overview page is shown below WEL9999 Setup Overview gt My Public Page lt Click to see your live data The blue header bar that extends across the entire page will display your WEL ID once you have logged in and also contains a link in yellow that can be used to pop up your public data page This is where your live image and trend charts are displayed Use this link to verify any changes you make on the various setup pages Further down the page notice that each section has a link called Set that matches a menu item at the top right of the page Either link will take you to the same setup page Note This next sentence is probably totally wasted on people just like me but I ll try it anyway If you have a question about what to enter on any particular page scroll down and READ the Tips at the bottom of the page hate typing so if I ve gone to the trouble of including a tip then there must be a really good reason Trust me can read your mind Plus if need to add more help info
30. e Scale Offset F Raw Raw _ Scaled Scaled 0 n fi pany 1 000000 fo o00000 FD 000000 jo goood 8 Pulse ja GPM CER Jo o00000 1 000000 jy a 000000 OOOO oooo00 16 16 2812082902000007 40 Cold 1 800000 2000000 2000000 20 937498 337498 Eaa 69 687492 al 417 28F3B1290200001B 40 Hot fisooo00 32000000 y 29 937498 937498 65 587504 18 48 ai7L di6L REGE 240 Deltat 1000000 000000 0 000000 Y 17 461479 461479 17 461479 461479 ho d16L d8L 240 arm BTUH 500 000000 000000 o 000000 000000 0 000000 o0o000 Submit Devices 0 49 Reset Due to WEL s memory limitations the calibration Web page is split into sets of 50 devices When a change is made simply submit that set of values Note that this page also has a Scan Bus button to aid in initial system installation Page 13 of 36 4 4 Add Edit Expressions This page enables users to create special Virtual devices called expressions which can be used to perform simple mathematical calculations on sensor data The results of these expressions can then be posted to the Web just like real device data Expressions are VERY rudimentary and they come as two basic building blocks One building block lets you create a Constant number that can be used in other expressions The other building block lets you perform a Simple Operation on two device values This operation could be add subtract multiply or divide or it could
31. e and it will appear on the Device List The next text box is the name of Input 1 the first term of the expression in this case HighTemp This name must be the name of an existing device In addition there is also a box to indicate if you want to use the Live value of this input or either of the Accumulated values Next comes the operator to be used for this expression In this case the minus sign has been entered Finally the name of Input2 the second term of the expression is entered LlowTemp along with its source letter L So reading this expression from top to bottom DeltaTraw HighTemp live LowTemp live After entering the fields or making changes the Save Expression button must be clicked In addition to the basic four math operator there are some special operators Page 14 of 36 Boolean The WEL is able to interpret a sensor or expression as a boolean logic level If the current value is less than 0 5 it is assumed to be FALSE otherwise its assumed to be TRUE Expressions can be used to combine device values using AND OR logic To detect when two devices are BOTH TRUE use the amp character as the operator Use the operator to detect when EITHER one is TRUE Comparison The WEL can compare two device values and generate a TRUE FALSE condition indicated by setting the expression to 1 or 0 Use the Y operator to test if InputDevice is Greater Than InputDevice2 Likewise
32. e bat making it too big or too complicated Start out with a size that s easily viewable on most computers I d recommend making it less than 800 pixels wide and less than 600 pixels tall In fact 640x480 is a great size Then decide how you want to depict your system so that you can easily add numeric sensor values Here s some example links of images WITH their sensor values http AWELServer com WEL1000 system png lt lt 640 x 480 http AWELServer com WEL0043 system png lt lt 1024 x 1024 pretty big Your goal is to create an image without the sensor values upload it to your Owner Setup page and then tell the page where you want the sensor values put You ll need to create an image using the PNG format like gif and then upload it using the Realtime System Image Upload button on the Setup page The other factor is that it s REALLY important that the final image has a palette of only 255 colors Reduce the png down to 255 Web Safe colors NOTE I ve found that if your image has more than 256 colors then the live text does not get drawn in the correct color So if your text is a funny color its probably because your image is not using a 256 color or less pallet Once you ve uploaded the image it will appear at the bottom of the Setup Overview page in its raw form The annotated image will appear after the raw one once your WEL has posted new data After uploading the image use the Set Live Data link to
33. et 0 0 Zone1_ D o0 IZ fonel M 0 5 Data is added to the image automatically by the WELServer website so you need to tell the system what device names to add what location and color to use and how to format the text This is done using a simple web form where each item is defined by one row of a table on the form See the sample edit page below Note The Tips on this edit page are EXTREMELY important so make sure you read them to get the most out of your image Here is a sample Live Image Text Edit page Its Just copy the URL from the name above an image and use it to define the image location in your own web design tool Page 29 of 36 6 0 Hardware The WEL comprises several hardware elements This section provides a more technical look at the inner workings of the WEL You don t need to understand the hardware to fully use the WEL but like to provide this information for the tinkerers out there 6 1 Power Supply The WEL uses a simple analog voltage regulator to generate the required 5V Unregulated raw voltage is applied to the board though the J1 terminals This is the ONLY two terminal connector so it makes identification easy The raw input voltage can be AC or DC and should be in the 9V to 12V range A higher voltage can be used up to 18V as long as any external loads do not cause the regulator to overheat A full wave bridge rectifier is used on the PWR Inputs so input polarity doesn t matter ie the two powe
34. etup a browser bookmark to return to your WEL setup page However it does require a manual step and a bit of extra Net know how If you re a net weenie you ll probably want to assign your WEL a fixed IP but if you re a net novice you ll probably want your WEL to get it s own IP thereby eliminating the need for you to assign one Unless you request a specific IP when you order your WEL it will come set up to obtain a dynamic IP So once it s up and running it will implicitly know how to talk out on the net but YOU won t know its IP You will need to search it out and determine its IP address so you can talk to it You will use a program called LocatelP exe to do this You can download this program from the WEL Support Files page of the WEL support website http Awww WELServer com support htm Load the program onto your PC and run it It will immediately search for the WEL and once it finds it will display its network parameters including its IP address See below Page 3 of 36 In the example you can see that the program got a ni Rabbit Board IP Locate Configure x Response from 192 168 1 50 This is the WEL s IP address You ll also not that the Gateway address is Hit Search to locate boards Configure to change settings 192 168 1 1 this is typical for many network routers like _ Search Configure Hep Linksys If need be these addresses can be changed by Using address 0 0 0 0 port 4854 to find remo
35. he sensors in the LogOrder are added to your downloadable Log File They are stored in tabbed columns that can be imported into Excel Choose a log order that will make it easy to view and analyze your data Missing sensors are logged as Question marks to keep the columns intact Click the Set Log Order link above the LogOrder Box to make changes to the Log Order Note The LogOrder Edit page also contains a link to your actual Log files so go there to download them Here is a sample LogOrder screen WEL9999 Log Order More Tips pra oe LogOrder Enter each sensor name you want logged into the box below AirTemp 70 0 r Date Time Zonel fonez Zones fone4d AirTemp Net ae 12 2007 Net D Net M SSHP 2 GSHP D 0 00 GSHP_M 1 25 Net 0 0 Netin 0 0 z Neno 0 00 Save Changes Netin M 0 o0 Net_ Out 0 0 Log Files Right click to Download Net_ Out D ooo 00 WEL log 2007_11 xIs lt lt DELETE LOG gt gt C I m Sure Net_OutM 0 00 Time 12 32 29 Iz fone lo 0 5 5 Defining Trend Graphs or Charts The second best thing you can do with WEL data is build graphs You can have up to 12 graphs each with up to 8 sensors on them Graphs are great for plotting Zone Air or Water temperatures or GSHP power usage or whatever If you really want to see how something is working then graph it Graphs can show short or long trends from hours to weeks You get to set the size a
36. in the See a top left corner that can be used to return to the home page e Add Edit Expressions e Edit Treatment Values In addition at the top of all pages are simple hyperlinks to the 3 RiGee creed Ce commonly used pages The last link is always for the User e System Configuration Guide a pdf doc on WELserver com lt Configure IP Network e Configure IP Power Monitor e Configure Serial Logging The WEL s software version and network information are the A Backup Restore System Settings UserBlock dat next things displayed on the home page If your WEL shows See oe a software version less than 4 02 then you need to use a Soft Boot the WEL previous version of this User Manual Below the network information is Web Posting and Bus Scanning status information Scanning amp Posting must be shown as active for the WEL to read the 1 wire bus and post data to the central server The ONLY time scanning is disabled is when you the user disable it in order to delete some unwanted devices If scanning has been disabled there will be a red warning and a button that can be used to re enable it The snapshot above shows a typical set of status information The last Web post shows a 200 OK message and the 1 Wire status is No Devices Found Unlike the prior WEL3 x hardware the WEL 4 0 hardware does not have any 1 wire devices onboard so if you don t have the 1 wire bus connected then this status will show N
37. mulation which indicates that the system should accumulate daily and monthly energy consumption BTUs When posting Treatments to the Web the WEL adds a _D or _M suffix to the end of the base device name In this example the WEL will also post a value for GPM_D gallons today and GPM_M gallons this month Treatment Letter Descriptions Counter C c Any Pulse input can Counted this includes the 6 onboard counter inputs and any 1 Wire counter devices that use the DS2423 The normal live value for these devices is the number of counts per minute scaled according to the calibration page If the C treatment is used the scaled count will be added to the daily and monthly totals every minute Use the lower case version of the letter to have the result divided by 1000 Page 11 of 36 Hourly Accumulation H h Any device that is measuring Somethings Hour can be accumulated The result is how many Somethings have been used this Day and this Month Likely candidates are Watts to give WattHours BTU H to give BTU s Yearly Accumulation Y y Yearly accumulation is really just an extension of Hourly accumulation The accumulated value is only reset on the first day of the new year As with H and h a lower case y accumulates at 1 000 the rate If you turn on Yearly accumulation the _M value still accumulates Monthly but the _D value will hold the Yearly accumulation Filters F f Many users have asked for sliding d
38. nd duration of the chart just by entering some simple information Click on the Set Trend graphs link above the Page 27 of 36 Graphs box to start defining graphs Read the instructions on that page for detailed information on how to define graphs Here is a sample Graphs Edit page WEL9999 Graphs See the Tips section below for configuration help Posted Posted Name Value Return to main page Graph Name Graph Name size W H Time Span Lines Units Caption AirTemp 79 0 i i Airlemps 400 200 24 Hours T1 Red T2 Blue PF Zones Red Bedroom Blue Office Date 11712 2007 Ee 0 Artemp AirTemp e00400 900 400 PHours J Hours AirtempiGreen m Eir Temp Green Air Temp Green GSHP oo 0 Zones Zones Zones 900400 _ 900 400 po0400 7 Hous 7 Hours ZoneT Red Zone2 Green _ on ZonetRed Zone2Green Zonel Red Zone2 Green GSHP_ D 0 00 a G5HP M 125 _ _ i_ wt it Net oa Net_ In 0 0 Net_In_D D o 00 Save Changes Net In M 0 00 Net_Qut o 0 Net_Out_D 0 00 5 6 Defining your Live System Diagram OK this is the BEST thing you can do with WEL data This is where you get to pull all the WEL data together on one cool system diagram that automatically gets updated with sensor values It all starts with you creating a Template image Take your favorite image creation program paintshop photoshop visio whatever and draw a diagram of the system you are monitoring Don t go crazy right off th
39. nd provides the high frequency outputs that enable me to calculate an accurate instantaneous load These units come from Continental Control Systems www CControlSys com and they are called Advanced Pulse Output WattNodes Note The WEL requires a high frequency output WattNode model WNB 3Y 208 P 300Hz The 300HZz suffix is essential to get the high frequency version of the unit Without this you will not be able to accurately measure load in watts 150Hz is also suitable for the WEL Continental Control Systems LLC WaTTNODE WNE 3 208 P 120 SSDH FW Cantinental Conii Specter chi pa LE Like the current switches the WattNode also has optically isolated outputs that can be wired directly to the WEL s inputs The COM output is wired to the common GND input on the WEL and the P outputs are wired to one of the PULSE input terminals on the WEL J5 The WNB is able to measure power flow in two directions so it s an ideal meter for use on a Net Metered PV or Wind powered home In this situation the meter generates two separate pulse streams Output P1 indicates the conventional demand load and sends contact closures when the net flow is into the home Output P2 indicates the excess home generated power PV or wind and it sends contact closures when the net flow is into the grid Both of these outputs are wired to the WEL which can then display them individually or subtract P2 from P1 to form a single Net load
40. nual describes WEL units that use the Rev 4 x circuit board and Rev 4 02 WEL software For earlier versions of the board or software go to the legacy section of the WELSever com support files page and download the appropriate User Manual The picture shows a WEL 4 0 Unit in its preferred orientation When the board is mounted to a wall in an enclosure the four LED groups should be located at the top of the board and the Ethernet connector at the bottom This orientation leaves the top surface of the enclosure free from openings The clear cover has a wiring legend plus several status bubbles oval areas that are illuminated from below Green bubbles indicate activity Red bubbles indicate some error condition Page 2 of 36 2 0 Getting Started The easiest way to get started is to connect the WEL to an active Local Area Network and apply power You can do this by plugging the WEL into a hub or router in your home or office and then connecting a WEL power supply Note It may be possible to plug the WEL directly into your computer s network card but you may need a special Crossover cable to do this You ll also need your PC set up to generate an IP address for the WEL via DHCP 2 1 Powering up The WEL is powered via the two screw terminals on J1 9 12V AC or DC may be used on this input No particular polarity is required When power is applied the WEL will boot up and load it s operating program from FLASH mem
41. o Devices Found with an error status of 2 The Error Status field will display the current and previous error code A code of 0 means that there is no error present This number is a combination of the 1 Wire and Ethernet Network errors The Ethernet error is multiplied by 10 and added to the 1 Wire error So in the sample image the Page 4 of 36 Live Data Devices Calibrate Expressions User Guide Web Energy Logger WEL 4 02 5 9 2010 error of 52 means a network error of 5 and a bus error of 2 See section 2 4 for a full list of error codes The last item on the Error Status line is an indication of the maximum number of devices or device slots that this WEL supports Prior to Software version 4 0 the WEL supported 128 of fewer devices This has now been expanded to 150 This increased device capability does not mean that the WEL can now support 150 physical 1 Wire devices The limit was increased to support additional expressions which also take up a device slot The remainder of the screen is links to specialized configuration pages The links start with the most commonly used pages and progress down to pages that are only used infrequently These pages are described in detail in section 4 2 4 LED indicators and Error Codes The WEL has several Status Bubbles text inside round or oval shapes on its clear front panel These use Green back lighting to indicate good activity and Red to indicate an error condition
42. offset which can be applied to the raw sensor value For example the scale and offset for a temperature sensor defaults to 1 8 and 32 to convert Celsius to Fahrenheit See section 4 3 for more details on Scales and Offsets Day _D This is the daily Treated value for this device Device values can be treated a number different of ways ranging from a simple counter to more elaborate hourly rate accumulations or filters There will only be a number in this column if a treatment has been selected for this device See section 4 2 Treatments are useful for sensors like WattMeters or Run monitors Each minute the current scaled value of the device is processed and the treated value is updated This value is often reset at midnight at the end of every day Month M Just like the daily Treated values this number is the Monthly treated value This value is often reset at midnight at the end of the last day of the month Note Treatments is the new name for what used to be called Accumulations The name has been changed because accumulation is just one thing that treatments can be used for See section 4 2 for a full description of other uses for these treatments Use Appendix E to see how the new Treatment letters relate to the old Accumulation letters This page also contains a link at the top to Edit Treatments Use this link to reset or change current treatment values 4 2 Name Devices and Set
43. oot has been requested the program won t restart for 10 12 seconds until the boot sequence is complete At that time you may need to use LocatelP exe again if the WEL is assigned a new IP address Page 24 of 36 5 0 Owner Website Setup In section 4 we dealt with web pages that exist on the WEL board itself However all of the Web Pages described in section 5 relate to the online Owner Setup pages that exist out on the World Wide Web This is where your WEL posts its data and this is where the cool graphics are generated and where the sensor data logs reside 5 1 Getting access There are six main Owner Setup activities and they are managed from WEL Logging WEL Display password protected pages reached from setup Oveniew set Live Data Set Log Order set rend Graphs Set Email Alert set Site Profile www WELServer com Download Logs Once at this website you can click the links in the top right portion of the page he to access specific setup functions Map Color Key To access any of your setup pages you will be asked for a User Name and Password You must enter your WEL s Site ID and password These are the same items that appear on your WEL s Configure Site page You will also receive these from Phil when he ships your WEL unit If you don t have this information call or email Phil Phone 301 387 2331 Phil Malone Mr Phil com Start with the Setup Overview page Click the link log in an
44. or flow meters but they can be used to count a variety of events The WEL software can be configured to accumulate raw counts or apply hourly scaling to convert rate information into usage totals eg WH or BTU For best electrical power monitoring results we recommend the WNB 3Y 208 P 300Hz WattNode from Continental Control Systems www CControlSys com however any wattmeter with optically isolated or dry contact outputs will work A 1K Ohm pull up is used to sense contact closure on each input To signal a pulse the device being monitored must short one of the WEL pulse inputs Pulse 1 2 3 4 5 6 to either of the common ground GND terminals on connector block J5 The WNB 3Y 208 P 300Hz can generate up to 3 pulse streams based on the selected option so J5 has been configured as two sets of three inputs each with their own GND terminal to make wiring simpler 6 5 Contact closure inputs The WEL is able to sense up to 8 contact closures and report these as unique sensor inputs These inputs are typically used to detect pump run or motor run conditions Run inputs are accessible on the J2 terminals To signal a run condition an input Run 1 Run 8 must be shorted to either of the Run Gnd inputs 6 6 _ Analog 4 20 mA inputs The WEL 4 0 adds the new capability to measure analog inputs To be compatible with industrial style analog devices the WEL is configured to read two 4 20mA current inputs It does this by passing the
45. ory The 4 Status Bubbles will display a very characteristic scroll display to signal the start of booting The Bubbles pulse green in sequence from left to right and then go off The two outer bubbles then glow red This takes about a second The red LEDs stay on for about fifteen seconds while the boot program is decompressed At the end of boot loading the red LEDs will go off At this point the WEL is running and will begin bus scanning The Green LED near the Network Connector should go on and stay on This indicates that the WEL has successfully activated the TCPIP network You remembered to plug the cable in right To view and update the internal workings of the WEL you must now configure a PC on the same LAN to be able to access the WEL s local web server 2 2 Locating the WEL s IP Address The WEL is an Internet appliance To communicate with other devices it needs an Internet Protocol Address or IP Address You need to know the WEL s IP address so that you can configure it using your PC s Internet browser IP Addresses are represented by a series of 4 numbers separated by periods Each number is between 0 and 255 The WEL will typically request an IP from your broadband cable or DLS router This type of IP is called a Dynamic IP as it may change from time to time Devices like the WEL can also be manually assigned a Fixed IP Fixed IPs are more convenient because they never change so it s easy to s
46. ost _D as wind direction in degrees and _M will report a wind sector from 0 to 15 0 being North and turning clockwise 22 5 degrees per sector Page 12 of 36 4 3 Calibrate Devices Scale and Offset This page is used to set the scale and offset for any named device in order to convert from a raw sensor value to a more desirable Real World value Unnamed devices are hidden Some devices appear with a default scale and offset like temperature sensors but usually the scale defaults to 1 0 and the offset defaults to 0 0 The scaled value is calculated as follows Scaled Raw Scale Offset Some devices appear with a default scale and offset like the temperature sensor in the example below but usually the scale defaults to 1 0 and the offset defaults to 0 0 The Web page shows the most recent raw and scaled value to help verify that the calibration is reasonable In some temperature sensor applications where an accurate delta T reading is required it may be necessary to perform an accurate calibration on the sensors One way to do this is to log the values from the two sensors when they are attached to the same metal object Then average the values to determine the difference between the two sensors This difference can be added to the offset to the low sensors to bring their two values in line WEL Calibrate NAMED Devices See bottom of page tips on scale and offset values Dev Address Type Nam
47. p or is reset or the user requests a Bus Scan the software scans the 1 Wire bus looking for all connected 1 wire devices Any devices that it finds are marked as Found and a Y is placed in the found column If a 1 wire device was previously found but is no longer present it is marked as Not Found with a N character When new 1 wire sensors are added to the bus you must trigger a Bus Scan to have it appear on the sensor list as Found Only devices marked as Found are then polled and reported to the Web V Valid Since the WEL knows what sensors were found when it last scanned the bus is expects those devices to be there each time it polls the bus for data Whenever a device is polled and returns good data the Valid count is set to 5 So a 5 in the V column means that the sensor is fully functional However if a device does not respond or if the returned CRC from that device is invalid Page 9 of 36 its Valid count is decremented This will happen each 6 second poll cycle Soa 0 in the V column means that 5 attempts in arrow to read that device have failed so the device is considered bad and no data will be posted for it Raw This is the raw unscaled value of the sensor For example this will be the temperature in degrees Celsius for the 1 wire temperature probes Scaled This will be the scaled value of the sensor Every device slot has its own scale and
48. page WEL Backup Restore System Configuration UserBlock dat Bus scanning is currently active Scanning must be disabled to backup or restore the System Config file The UserBlock dat file cannot be accessed while any of the automated WEL functions are running Click the button below to disable Bus scanning and Web posting Once backup restore is complete don t forget to re enable scanning Disable Scanning to proceed When saving or restoring the system configuration file its necessary to stop the WEL from performing active polling which may attempt to read or write to the UserBlock dat file Simply click the Disable Scanning to Proceed button At which point the following screen will be displayed WEL Backup Restore System Configuration UserBlock dat Options 1 Local Backup Click Local Backup to save a copy of your current system configuration file UserBlock dat directly to your Hard Drive You can then use it later if you ever need to Restore your settings Local Backup 2 Remote Backup Click Remote Backup to send a copy of your current system configuration file UserBlock dat to the Logging Server Once it s been authenticated it will appear as a link on your Setup Overview page From there you can can download it and use it to restore your settings Remote Backup Backup status Idle 3 Restore To restore a previously saved configuration click Browse to locate a saved system configuration file UserBlo
49. r this connector is straight forward it should not be performed without significant care as both the OV and 5V supply lines are present on the connector so reversing the polarity to an external device may be fatal to that device or the WEL A suitable cable for J4 is a standard three wire Servo Extension Cable or robotics PWM cable The typical Black Red White color code is a good match for the connector The signals for the connector are indicated clearly on the PCB adjacent to the connector O OV Common 5 5V Supply Regulated T Transmit data Embedded devices like the Logomatic V2 can use these levels directly as seen in the photo below using custom wired cable but if RS 232 is required then a TTL to RS 232 converter will be required Page 32 of 36 Appendix A Device Type codes When a physical device is added to the 1 wire bus it will show up as one or more logical devices on the sensor list Each device has an address and type The following list shows the meaning of each device type Type Function 2 CSCSCSC d Additional channels 01 Local Run monitor input SSS 0 04 Local Pulse counter input o T0 S 05 Local 4 20 mA analog input S 0 06 DS2423 Dual counter Channel B J0 S 14 Additional Unfiltered channel __ SS O 15 Additional Filtered channel __ o S 0 16 DS18S20TemperatureSensor _ _ J0 S 18 DS2406 Digital Input _ SS 0 29 DS2423 Dual counter Channel A
50. r wires can be connected either way around As soon as power is applied the LED in the lower left corner will light indicating the presence of 5V This LED illuminates the PWR bubble on the clear cover An inline reset able poly fuse is used to limit input current draw in the event of a component failure This fuse trips at about 1A The WEL provides two different voltages to the 1W bus to power custom circuits These voltages come from two points on the WEL s own power supply The Raw DC supply comes from the input side of the 5V regulator and the 5V is from the output side Either or both of these voltages can be sent along with the 1 Wire bus since both voltages are made available on J3 Each supply line has an inline reset able fuse to limit excessive current that might prevent the WEL from running WARNING External sensors powered by the WEL should not draw more than 200mA combined 6 2 Rabbit CPU A compact CPU core from Rabbit Semiconductor is used to perform all the WEL s software functions This RMC3700 module contains CPU RTC RAM FLASH and Ethernet Interface The Ethernet Interface is a RJ 45 connector identified at the bottom of the enclosure On power up the RCM3700 boots from the flash file system The program starts and initializes all the onboard systems The program then scans all the system sensors and posts data as required The program also starts the local Web Server that is used to perform WEL configuration
51. sented based on the characteristics of the device you selected Each of these are discussed below 4 9 1 TED 5000 The TED5000 can have up to 4 MTUs Measurement transmitter Units attached so the WEL setup screen provides a means for you to indicate which ones you want to monitor The TED5000 also provided a MTU O Total sum of all 4 MTU s so the WEL also provides this data For each MTU you want to include in the WEL s data place a Y in the appropriate Monitor Y N box Page 19 of 36 WEL Assign Network Power Monitoring properties Networked Power Gateway Status Power read OK Type of network Power Montoring TEDS000 Ewes the Local IF address of your ONEI Monitor Local IP Address i 192 li 68 I eo j Indicate which TED MTU s es want to monitor Function N Day WH Month WH MTUO Total Power m 30601 261 969 5902 MTU T z 5902 30601 261969 251969 MTU2 N 0 0 0 T MTU3 IN o 0 IMTU4 N 0 0 In the above example only MTUO has been selected Now when the Submit amp Reconnect button is clicked the WEL will add a new entry to its Device List for each required MTU This can be seen on the Devices page below Notice that the Address for the TED s MTU 0 is TED5000 0 mei eee SSS a ae tne isle 240 DeltaT e os Oba Be ea 19 d18L aBL 240 run m
52. sion does The mnemonic indicates the IDs for the two input devices as well as the operator eg d8L d9L If an invalid device name was entered the Device ID will be shown as 255 If you ever delete the device that an expression refers to the formula will fail to operate and if you view its mnemonic you will see an invalid device ID of 255 4 5 Edit Treatment Values For any number of reasons you may want to change the current value of a daily or monthly treatment One example might be that you start recording power consumption in the middle of a month and you want to pre load a treatment with the current power usage for that month Another reason might be that you simply want to clear out some bad data If you click on the Edit treatment Values link you will be present with a page that shows all of the named devices that have treatments assigned not N Unnamed devices are hidden See a sample page below WEL Edit Treatment Value page This page is used to edit the current treated values for Named Devices Treated values represent different concepts ranging from Run Hours to Filtered measurements Two values exist for most Treatments The Minor value is usually for the shorter daily time interval and the Major is for the longer monthly period Examples of the the Minor amp Major Treatment might by Daily and Monthly accumulated runtimes Click the Edit button next to the device treatment you want to modify Make the req
53. te boards a 5 Response from 192 166 1 50 OCH Web Energy Logger clicking the Configure button and entering the desired Mac addr O0 90 c2 ce bB 4a Mask 255 255 254 0 addresses Gateway 192 168 1 1 Search Complete If you run LocatelP and it doesn t find your WEL it s probably because your PC s firewall is preventing the WEL s response from getting back to your PC Try turning off your Firewall temporarily Then turn it back on again once you have the WEL s IP Also try resetting the WEL to let it request an IP address again 2 3 Using your browser to configure the WEL Once you know your WEL s IP Address you can use any Web Browser to configure it Local IP 192 168 1 100 Start your Web Browser on the same computer that you ran sol So LocatelP exe Enter the WEL s IP address in the location ee a ae that you would normally type a Web page name At the end P of the IP enter the WEL s port number as 5150 colon ee an eee followed by the number 5150 For example if the WEL s IP Last Web Post 11 23 08 on 05 10 2010 f Last Web Reply Domain lookup complete Goto WEB setup was 192 168 1 100 then enter the following page address eae ian a http 1 92 168 1 100 5150 One Wire status No Devices Found 0 Device Errors Error Status current last 2 1 Max Devices 150 The Web browser should now display the WEL s Home Display Live Data page shown at right All WEL pages have a button
54. the WEL is not running for any period these numbers will not accumulate For more information about the eGauge visit http www egauge net Page 21 of 36 4 10 Configure Serial Logging The WEL is able to transmit a TTL serial string with select AUER d ee ee device data Data is sent at 9600 Baud with 8 Data bits 1 WEL Serial Configuration Stop Bit No Parity This page configures the string format and L the data content Log Status Off The following Serial String attributes can be set on this page Parameter Value Log Interval Pecos lo Seconds Log Interval The interval between serial packets can be set Gee T for sro or tremely ong Itenale Seconds to days Ifthe a iod i l i ing i m Tail SO Delimit Mode Four transmission modes are available These are a ASCI e combination of two options Include Date time and Include E Char1 o Names Using the settings shown on the example image ee above samples of the four formats are shown below ASCII Date Time Names The most verbose format _Submit Reset Dev Name Y es N o N o WEL Date 11 12 2007 Time 09 53 58 Zone1 0 0 Zonel D 0 GSHP1_run mm 0 0 Zonel M 0 5 AirTemp 68 9 _ 1_DSH N w Date Time No Names WE belie i272007 092 5422970207 0a 0r Usar 00I Names WEL Zonel 0 0 Z20nel D 0 0 Z0nel M 0 5 AlrTemp 60 005 No Names The most brief format WEL 0 0 0 0 0 5 68 98 Header Any 7 printable characters
55. to monitor a maximum of 24 Registers on a single eGuage Once the number of desired Registers is set then it s up to the user to name the Page 20 of 36 WEL devices the same as the eGauge registers to enable the WEL to map between the two The screen below shows a sample eGauge setup Here we see that the number of registers has been set to 2 This tells the WEL to establish two device slots that can be used for power measurement Then these slots must be given names that correspond to eGauge resisters Note that the WEL has much stricter rules for naming devices so the names used on the eGauge must conform to the same rules The one exception is that if an eGauge name has a space in it the same name can be used on the WEL but with an underscore replacing the space Eg of the eGuage register was House Power the WEL name would have to be House _ Power Here is a sample of the Device List showing the two eGauge registers Notice that the addresses for the two devices are eGuage 1 and 2 These are set automatically by the WEL Also note that Solar and Subpanel are the register names used on the eGauge As with all Oy IP Power Meter device slots the Treatment letters default to P Change this to p to accumulate power an kilowatt Hours Unlike the TED5000 the eGuage does not maintain values for daily and monthly power usage so the WEL calculates these by monitoring the change in total energy consumption so if
56. twisted triad three wires with the default WEL color code Black Ground Yellow Signal Red V The third wire Red is provided to power more elaborate 1 wire sensors These sensors require typically require more current than can be supplied by the normal 1 wire bus The WEL is able to provide either regulated 5V or unregulated 9V on this third wire Here you see the 1 Wire Bus cable connected to the WEL using the standard color code Here the red wire is connected to the RAW DC supply not the regulated 5V supply _ To attach a temperature sensor you just need to wire it to the bus at the desired location like to use an attachment device called a Tap Splice This gadget lets me crimp the sensor wires to the bus without any cutting stripping or soldering A Tap Splice is clipped onto one bus wire and the corresponding Sensor wire is inserted into the splice The assembly is then squeezed using a large pair of pliers and the connection is made The operation is repeated for the other wire Here is a picture of a finished splice pair The bus is running along the top of the image and the attached sensor wires are leaving at the lower right Notice that nothing is happening to the red wire this is because a temperature sensor can obtain its own power from the signal bus Each of my temperature sensors come with two Tap Splices like the ones the phone company uses Page 6 of 36 for its wires In some situations it
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58. uired changes and then hit Submit Dev Name Acc Minor Acc _D Major Acc Major Acc _M Edit la 4 4 8 GPM C 2318 172600 231a oga Edi oi ih 19 BTU H 1469 262570 6632 262200 Edit 2 soter 2 3918 25029270 Se rit is Aa ec aD E ej 22 Subpanel o zoe 2111 646480 Edi Edit To modify a treatment click the Edit button next to that device eg for Solar A new form will be displayed with text entry boxes for the Minor and Major values for that treatment Make any desired changes and then click Submit a Fie eres oar ve D Major Value M e a sp Foo xeon sma 4 6 Delete unused devices Once you ve been using your WEL for a while or after doing some experimentation with expressions or different sensors you may have some devices on the main Device List that you no longer need Page 16 of 36 But the WEL is designed to never forget a device so you need to go out of your way to force the WEL to remove these devices Since the system is constantly referring to the Device List for polling and posting data you first need to disable scanning The system knows this and when you first go to this page it will present the following screen If you are ready to delete devices click the Disable Scanning button The WEL will be immediately put in idle mode and shortly thereafter the BUS
59. user to change the current IP addresses for the WEL This page can be used as an alternative to the LocatelP program for making these changes The factory default setting for the WEL is to have an IP address of 0 0 0 0 which forces it to request a dynamic IP via DHCP If you want the WEL to use a Fixed IP set it here Remember that if you change the IP address you will need to enter that new IP into your browser once you hit Submit To get access to the Internet you also need to set the Gateway IP This could be your Cable modem Network Router or Internet Sharing PC The default for this is 192 168 1 1 which is a common router setting Finally you may need to enter the IP of your ISP s Domain Name Server DNS If you change any of these settings and hit submit the WEL will reset itself to load the new settings Page 18 of 36 Currently two IP power monitors are supported TED5000 and the eGauge As more are added they will all be configured here Clicking the Configure IP Power Monitor link brings up the following page Here you must select the type of device you wish to access and enter its IP address These devices often support DHCP dynamic IP addresses but to work with the WEL they need to be assigned Fixed IPs Consult your device s manual to determine how to achieve this Once you ve selected your device and entered its IP click Submit and Connect A new page will be pre
60. when the pump is running A different way to deal with this issue is to use the Sample and Hold expression operator to maintain the last valid sensor value when the pump turns off This can be done by using the S operator Input1 is the device to be sampled and Input2 controls when the value sampled and when it is held If Input2 is TRUE then the value of Input1 flows through to the output of the expression However if Input2 goes FALSE then the expression output does not change so it effectively holds the last good value of Input Constants To create a device to hold a constant number for calculation purposes the number would be entered in the Constant Value box on the right hand gray area and Save Constant would be clicked Constants are useful for conversion factors eg BTUH to KWH or to hold values used in calculations like 7 days in the week or 0 10 dollars per KWH Limits Any number of expressions may be created up to the maximum limit of 150 devices Multiple simple operators may be combined in series to form more complex expressions and each expression may utilize the device s Scale and Offset calibration values The key issue to remember is that each expression must have a different name Once an expression is saved the Address field for that device is used to display a mnemonic for the expression This acts as a reminder to you for what Page 15 of 36 that expres

Web Energy Logger (WEL) User Guide: Rev 4.0.2

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