Transmitter Web - WebTransmitter
Contents
1. C MWhr Three 3 Hours Ahead Forecast WebTransmitter UsersManual v1 2 doc Page 6 of 11 Web Transmitter User Manual Enter the password to enable the Update Values button and the Encode button The default password is 1111 If you are using data from the NGX Web site you will need to obtain an ID password combination from the NGX which then must be encoded Utilize the Encode button to bring up a Encode Tool pop up window from the http www webtransmitter com Web site and enter the an ID password combination as follows in the Raw Value field id password A O O WEBTransmitter WebTransmitter Encode Tool Raw Value Encoded Value o M Encode M Close Window J Figure 2 Encode Page Click on the Re Encode button then copy this text string into the Gas Access field on the configuration page and finally close the pop up window After all of the configuration modifications are complete then click the Update Values button to write these new values to the WebTransmitter A new page will load confirming that the changes were successful which will then forward to the configuration page with the new values shown Note that the LED2 indicator will flash once to confirm that data has been written to the WebTransmitter One can either make further adjustments if required enter calibration mode see Section 9 or click the Exit button Clicking on the Exit button will cause the WebTransmitter to reset and the2. is required in the control system This input must either be active such that it internally supplies the loop with approximate 24Vdc or passive complete with an external 24Vdc power supply The maximum loop voltage is 36Vdc and the minimum loop voltage is 5Vdc but 24Vdc is recommended and should be specified WebTransmitter UsersManual v1 2 doc Page 2 of 11 Web Transmitter User Manual Additionally the following optional features may be utilized Control System A second 4 20mA analog input the same as above may be used A set of dry contacts normally open are included on the WebTransmittter The default function for these dry contacts which are rated for 5A at 30Vdc are to provide a discrete input into the control system so that it can monitor the health of the WebTransmitter Each time the WebTransmitter queries the Internet the contacts close Note that optional functionality can be made available for these dry contacts The control system can utlize a relay to reset the board In the unlikely event that the WebTtransmitter is not responding properly as detected by the dry contacts above the WebTransmitter can be remotely reset Display An optional LCD Display is available to inform on the status of the device External Switches External switches are available that mimic the functionality of on board switches SW3 and SW4 4 Consumable Parts The WebTransmitter has the following consumable parts They can eit
3. 1 B 2 Be A ai Instruction Manual Revision 1 2 May 21 2009 O R Engineering Inc 2009 Web Transmitter User Manual 1 Introduction The WebTransmitter has been developed by R Engineering Inc to copy data from the WEB seamlessly into a control system as a 4 20mA signal Once in the control system the data can be either merely displayed on the Human Machine Interface HMI or used in logic as a Process Variable PV The process of coping data from the Internet or WEB is often referred to as scraping Typically data published on the WEB is copyrighted and therefore it is the users responsibility to contact the owner of the data being copied to obtain permission 2 Contact Information Additional information as well as firmware updateds can be obtained from the following Internet http www webtransmitter com Mail R Engineering Inc Attn Rudy Boonstra 95 Cougar Ridge Heights SW Calgary Alberta T3H 4X5 Email rboonstra reng ca 3 System Requirements To properly implement the WebTransmitter the following minimum requirements are required Power 15 30Vdc Network The RJ45 will need to be connected to a network that provides the device with an IP address via DHCP and has direct access to the Internet Firewalls and Proxy Servers that either modify the header or require authentication may prevent the WebTransmitter from functioning properly Control System A minimum of one 4 20mA analog input
4. 5 49 e 192 168 0 102 Version 0 1 P 00 90 C2 D6 72 D8 Registration R Engineering Inc Rudy Boonstra 403 289 5432 rboonstra reng ca Originally this system was developed to provide the Alberta Electric System Operator AESO System Marginal Price SMP to facility operators due to the high volatility of the electricity price Additionally the Natural Gas Exchange NGX AECO price was also provided so that the operator would be able to compare the operating costs of the two common energy sources electricity and gas Note that the end user has to have an account with NGX in order to obtain the gas price The original systems included a pc computer with custom software and an ethernet enabled logic solver Contact at support webtransmitter com Version History Version 0 1 P May 21 2009 e Add capability to read the three hour forecast price for the AESO electricity price Version 0 1 0 May 5 2009 e Update internal WEB server and firmware to provide mechanism to calibrate each of the two 12 bit DACs Version 0 1 N April 27 2009 e Ensure device only polls internet once when both the outputs are selected to the same source Version 0 1 M April 25 2009 e n config mode the IP address can now be displayed via the 4 20mA outputs Version 0 1 L April 25 2009 e Update internal WEB Figure 5 Database Matches Board Data 12 Document Version Informati
5. W4 Pressing the SW4 button causes the IP address to be displayed with the outputs Loop B first toggles to display the digit number followed immediately by Loop A to display the value Both of these outputs need to be scaled 0 to 100 Each time SWA is pressed the next digit is displayed For example 192 168 0 1 is shown as Loop B 1 for the first digit Loop A 1 for the 1 Loop B 2 for the second digit Loop A 9 for the 9 Loop B 3 for the third digit Loop A 2 for the 2 Loop B 4 for the fourth digit Loop A 250mA for the Loop B 5 for the fifth digit Loop A 1 for the 1 Loop B 6 for the sixth digit Loop A 6 for the 6 Loop B 7 for the seventh digit Loop A 8 for the 8 Loop B 8 for the eighth digit Loop A 250mA for the Loop B 9 for the ninth digit Loop A 0 for the 0 Loop B 10 for the tenth digit Loop A 250mA for the Loop B 11 for the eleventh Loop A 1 for the 1 Repeat back with the first digit oO OO O O O Q XQ G O O0 g Update System Database The IP address can optionally be registered on the WebTransmitter com database This feature was added to assist the user in easily recalling the IP addresses and MAC addresses are of the WebTransmitter s purchased When on either the configuration or calibration screen click on the Web Transmitter tab This will take you to the http www webtransmitter com WEB site and also forward the IP address MAC address an
6. d firmware version If the data requires updating an update logo will appear beside the IP address on the left side of the page shown in Figure 4 Clicking this logo updates the database When the database is current there will be a checkmark beside the IP address as shown in Figure 5 WebTransmitter UsersManual v1 2 doc Page 9 of 11 Web Transmitter User Manual S rire d 86 http www webtransmitter com index php return 192 168 0 1 6 sal Version 0 1 P May 21 2009 Version 0 1 0 May 5 2009 Version 0 1 N April 27 2009 Version 0 1 M April 25 2009 ur Version 0 1 L April 25 2009 Figure 4 Database Update Required WebTransmitter UsersManual v1 2 doc Page 10 of 11 Web Transmitter User Manual WEB Transmitter 0 http www webtransmitter com index php return 192 168 0 1 Qr CD 85 Bonjoury Westside BMO IngDirect Genr Rudyr Homev Kidsv Wikipedia FFHM WEB Transmitter WebTransmitter Background Background The WebTransmitter has been developed to copy data from the WEB seamlessly into a control system as a 4 20mA signal Once in the control system the data can be either merely displayed on the Human Machine 1 Interface HMI or used in logic as a Process Variable Device History PV e 192 168 1 101 Version 0 1 0 00 90 C2 D6 73 37 192 168 0 104 Version 0 1 0 00 90 C2 D6 A1 88 e 0 0 0 0 Version 0 1 N 00 90 C2 CE 6
7. her be sourced directly by the user or through R Engineering Inc Battery CR2032 3Vdc Lithium lon Coin Cell Battery When this battery drops below 2 9Vdc and the board is without power via the terminal strip the internal memory settings may be reset to default and need to be reprogrammed Fuses Main Board Power LittelFuse 154 Series 2A 4 20mA Inputs 2x LittelFuse 154 Series 100mA WebTransmitter UsersManual v1 2 doc Page 3 of 11 Web Transmitter User Manual 9 External Connections The external connections are made via the ten position Phoenix Contact connection header J2 as follows Discrete Output Analog Input TTT A 0 Discrete Input mmm Analog Input BB 5 For Loop 8 if you have the optional external switch or LED block installed in SW4 the light will go on when there is loop power available If it is believed that all the connections have been made properly one can verify that the 100mA fuse F1 has not blown open 15 30Vdc For Loop A if you have the optional external switch or LED block installed in SW3 the light will go on when there is loop power available If it is believed that all the connections have been made properly one can verify that the 100mA fuse F2 has not blown open If SW2 is on with 15 30Vdc power applied to terminals 0 and 1 and for PWR the green LED labeled D4 should illuminate If it does not light up then the 2A fuse F3 may ha
8. n operate with the new configuration settings WebTransmitter UsersManual v1 2 doc Page of 11 Web Transmitter User Manual 9 4 20mA Calibration Mode The Web Browser can also be used to calibrate the 4 20mA outputs The default values for the 12 bit DAC are o 2mA 400 Denotes an error signal to the control system o 4 mA 800 0 o 20mA 4000 100 The screen capture in Figure 3 shows the and buttons that can be used to update each of these values Additionally when you update the calibration you can drive the output to a preset value to assist in the calibration These values can be verified by using the 4 20mA Diagnostic Mode as detailed in Section 10 gt gt M nitp 192 168 0 102 cal shtm e F3 Loop Calibration support webtransmitter com A 100 4000 B 400 4000 Jut Do Not Change Update Values Return to Config R Engineering Inc Figure 3 Calibration Page WebTransmitter UsersManual v1 2 doc Page 8 of 11 Web Transmitter User Manual 10 11 4 20mA Diagnostic Mode When the unit is in System Configuration Mode as mentioned above by pressing either the SW5 button or the SW3 and SWA buttons simultaneously the 4 20mA ouputs can be used for further diagnostics using SW3 and SW4 o SW3 Pressing the SW3 button causes the 4 20mA output for both Loop A and Loop B to increment to 0 output 4mA 50 output 12mA 100 output 20mA and then repeating again with 0 o S
9. on Version Comments Updated for calibration 0 4 P mode and updating IP data to the database diagnostic mode Original Version WebTransmitter UsersManual v1 2 doc Firmware Author RJB RJB BF 2009 05 21 2009 04 26 2009 03 14 Page 11 of 11
10. tem Configuration Mode A Web Browser can be used to modify the configuration of the WebTransmitter First the WebTransmiter needs to be put into System Configuration Mode Either pressing SW5 or pressing both SW3 and SW4 simultaneously will stop the perpetual query cycle and place the WebTransmitter in System Configuration Mode If the optional display is installed the IP address will be shown While in System Configuration Mode the LED1 indicator will flash Use an internet browser on the same network as the WebTransmitter and type the IP address into the address bar Note that the WebTransmitter times out after a period of time and resets so that it can not be inadvertently left in config mode If the correct address is entered the WebTransmitter HTTP server will respond with a page similar to Figure 1 WebTransmitter UsersManual v1 2 doc Page 5 of 11 Web Transmitter User Manual is e Ome nszussoioh P Configuration support webtransmitter com time apple com R Engineering Inc Figure 1 Configuration Page Note that this is for firmware version 0 1 P and that future firmware versions may look slightly different and or have additional configuration settings There WebTransmitter can download data from either one or two of the following three sites o SMP AESO System Marginal Price C MWhr o NGX Natural Gas Exchange AECO Gas Price C GJ o E 3 AESO Forecasted Electricity Price
11. ve blown open Network Connection When you have a proper network connection and the WebTransmitter is properly powered up you should see activity on the small green LEDs on located adjacent to the RJ45 connector As soon as the WebTransmitter is powered up it will try to obtain an IP address from the network DHCP server While it is waiting for IP address the LED1 indicator will flash Upon successfully obtaining an IP address the WebTransmitter LED1 will go on solid and then connect to an SMTP server to synchronize the system time If an SMTP servier is reached the LED2 indicator will turn on At this point the WebTransmitter will then start the perpetual loop of WebTransmitter UsersManual v1 2 doc Page 4 of 11 Web Transmitter User Manual obtaining WEB data every X minutes where X is defined in the system configuration typically every five minutes or 300 000msec 7 User Buttons There are five user buttons on the WebTransmitter as follows Label Function External Notes Switch On board system No This feature is also available reset by connecting J2 terminals 2 and 3 together if ae power on Shorting block required there is no switch bud ol SW5 Configuration Mode No O In cases where the WebTransmitter is mounted with optional switches and the on board switches are not accessible configuration mode can be obtained by pressing SW3 and SWA simultaneously 8 Sys
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