SENSORMETRIX Websensor EM01b, Instruction Manual

Page 1: ... 118 976 9020 sales sensormetrix co uk www sensormetrix co uk sales fax email web A member of the Olancha Group Ltd Registered in England No 4004881 VAT Registration No GB164 5653 45 EM01b Websensor Instruction Manual HVAC Monitor EM01b Websensor Ethernet Port Configurable Instruction Manual v6 5 ...

Page 2: ...nts Page Copyrights 3 Warranty 3 Introduction to the EM01b 4 How the EM01b Works 5 Websensor Inventory 8 Websensor Connection 9 Quickstart 11 Programming the IP Address 13 Default Settings 14 Units of Temperature 16 Testing the IP Address 17 Websensors Tail 19 Additional Websensor Functions 20 Contact Closure 21 Thermistor Interface 25 Measure Voltage DC 28 Connector Connections 29 Troubleshooting...

Page 3: ... contained herein Sensormetrix assumes no liability for damages from the use of the information contained in this manual The configuration software described in this manual is furnished under a license and may be used or copied only in accordance with the terms of that license Warranty Warranty Sensormetrix warranties the products to be substantially free of manufacturing defects for a period of 1...

Page 4: ...d to utilize the internet to transmit temperature relative humidity detect contact closure power supply voltage information and illumination data from a remote acquisition point to a host computer or hosted database The EM01b Websensor offers built in signal conditioning and an embedded mini webserver Users are able to access the sensor using http based commands Figure 1 Websensor EM01b returning ...

Page 5: ...rnet based network to which it is attached It is through the IP address that the Websensor is able to take its place on the Internet becoming fully accessible to query by the user The Websensor consists of a base unit with two communication ports Ethernet and ESbus The ESbus combines a networked version of the SPI serial bus and RS232 The ESbus port is used to support a variety of options availabl...

Page 6: ... Internet protocol the communication ports and the sensor and sensor signal conditioning The Websensor has no switches keyboard or display because it functions as a sensor not as a computer Figure 2 How the Websensor works Compatibility with earlier Websensors Compatibility with the earlier models of Websensor has been maintained Any version of the Websensor will always return temperature relative...

Page 7: ...onal temperature sensor and comes supplied with a temp sensor on the end of a 3 metre cable which plugs into the extra port EM01b VLT The EM01b VLT uses the extra port to measure DC voltage from 0 18V This is most often used to monitor UPS batteries This version comes with a bare plug for the extra port for the user to wire up to See websensor inventory page for parts included with each EM01b What...

Page 8: ...es fax email web A member of the Olancha Group Ltd Registered in England No 4004881 VAT Registration No GB164 5653 45 EM01b Websensor Instruction Manual 8 Websensor Inventory Figure 3 EM01b Websensor Figure 4 Wall Power Supply Figure 5 Straight Patch Cable Figure 6 Crossover Cable Figure 7 Contact Closure Figure 8 Additional 3m Thermistor Cable EM01b THM only ...

Page 9: ...r type Ethernet cable has been included with the Websensor It is a solid GREY cable with BLACK connectors Figure 9 Websensor connected directly to the NIC in a PC Connecting to a PC through a hub or directly to a LAN If connecting to a PC through a HUB a straight type Ethernet patch cable must be used between the HUB and the Websensor A straight type Ethernet patch cable is also included with the ...

Page 10: ...figures below depict the locations of the connectors for the Ethernet 12VDC power and Esbus connectors Figure 11 Ethernet RJ 45 Power Connectors Figure 12 Esbus Connector RJ 45 Esbus for connecting up to 7 other accessories ES11 Flood Monitor ES01 Visual Temp Display ES02 Main Power Monitor not yet available EShub hub for connecting more than one accessory to an EM01b Check www sensormetrix co uk ...

Page 11: ...d the green transmit LED going out The Websensor is now ready to communicate with the PC Test communication to the websensor by using the ping command at an MSDOS prompt ping 192 168 254 102 return and the default IP address of the websensor Default IP address 192 168 254 102 If unsuccessful response press reset button on the side of the websensor for 10 seconds until the two LEDs flash twice and ...

Page 12: ...on Manual 12 TC temp HU humidity IL illumination Your Websensor is now fully functioning and is ready for you to programme to your requirements Continued below HELPFUL HINT Prior to assigning the Websensor s IP address it may prove useful to confirm that the IP address chosen for Websensor is not being utilized by another device on the network This is easily checked by pinging the selected address...

Page 13: ...er to issue the following command http 192 168 254 102 index html eipaaabbbcccddd where aaabbbcccddd is the new IP address of the Websensor For example suppose the new address to be assigned to the Websensor is 192 168 10 20 The command to perform this change is http 192 168 254 102 index html eip192168010020 As the new address is entered each octet must have three digits After programming is comp...

Page 14: ...the end of a straightened paper clip to gently press the reset button only until both LEDs on the Websensor start to flash Once the reset is completed the Websensor will be set to a default IP address of 192 168 254 102 From this address the User can configure the IP address of the Websensor to the desired value Figure 15 Location of the RESET button on the Websensor How to recognize a Websensor R...

Page 15: ...forget what IP address is programmed into a Websensor is there anyway to retrieve it A A There is no command that can be issued to a Websensor that will cause the Websensor to reveal its assigned IP address If the assigned IP address is forgotten the only recourse is to press the reset button for ten seconds thus restoring the default IP address of 192 168 254 102 Q Q Why can t I read the Websenso...

Page 16: ...of Temperature Selecting units of temperature to be reported To establish the units in which temperature is reported either Fahrenheit or Celsius perform the following For temperature in Fahrenheit use the browser to send this command http 192 168 254 102 index html etpF For temperature in Celsius use the browser to send this command http 192 168 254 102 index html etpC NOTE The temperature unit s...

Page 17: ...e IP address selected during the configuration process has been properly entered One way to do this is to ping it Connect the Websensor to a PC via an Ethernet cable as shown on Page 9 Open a Window with an MSDOS Command Prompt START ACCESSORIES COMMAND PROMPT In the Command Window type the IP address you entered in configuration Step 1 In this example we are using the websensor default address 19...

Page 18: ... is time to try a http request for some live data To issue a request start your internet browser Internet Explorer Netscape In the URL address field enter the following address http 192 168 254 102 index html em Note For purposes of explanation the IP address 192 168 254 102 is being used However the USER should enter the IP address that was programmed into the Websensor during the configuration s...

Page 19: ...uction Manual 19 Websensor s Tail The EM01b Websensor has a tail Functionally the tail is the sensor which measures temperature and relative humidity The reason for the tail is to move the temperature sensor outboard of the EM01b enclosure so that any heat emitted by the EM01b electronics will not skew the temperature relative humidity measurements Note Websensor was designed to measure air temper...

Page 20: ...offers three 3 new functions to the User however only one of the three can be used or programmed into the Websensor at any one time One of the three functions should be specified at the time of purchase as only one of the functions can be configured because all three functions utilize the same port on the Websensor and each one requires a specific modification to the Websensor hardware The Websens...

Page 21: ...e X 1 0 mm pin supplied with each Websensor which is inserted The Websensor s default is normally closed Magnetic door switches suitable for this application are available from Sensormetrix When the door and switch is opened and the circuit is broken the Websensor will latch on the open condition In the event a door is quickly opened and closed in between Websensor scans polls the open condition s...

Page 22: ... indicates whether the Websensor detects the contact switch as being open or closed W indicates the contact switch is closed see Figure 22 N indicates that the contact switch has been opened see Figure 23 NOTE The initial contact closure information returned is not valid at the time the ENABLE command is sent Any requests sent AFTER the function ENABLE and Contact Closure RESET commands will conta...

Page 23: ...co uk sales fax email web A member of the Olancha Group Ltd Registered in England No 4004881 VAT Registration No GB164 5653 45 EM01b Websensor Instruction Manual 23 Figure 21 Contact Closure RESET command issued Figure 22 Valid Contact Closure status showing switch closed after resetting NOTE Contact Closure status is VALID after the command is issued ...

Page 24: ...bsensor Instruction Manual 24 Figure 23 shows a regular command being issued but this time the N indicates that the switch has opened loop broken even if only momentarily Figure 23 Open switch or open loop indication NOTE Contact closure can only be reset after the switch loop has been restored to a closed condition NOTE Should the Websensor lose power or have its power recycled the Websensor will...

Page 25: ...r is ordered so that the correct hardware options are enabled prior to shipment Prior to using the Websensor Thermistor Interface for the first time the following command should be issued to assure the correct firmware is selected for operation http 192 168 254 102 index html eFR Figure 24 Command used to enable Thermistor function A suitable thermistor is available from Sensormetrix Once this com...

Page 26: ... 4004881 VAT Registration No GB164 5653 45 EM01b Websensor Instruction Manual 26 Figure 25 Using Websensors own temperature for calibration Once the calibration value is known enter it into the Websensor using the following command In this example the value 70 500 degrees Fahrenheit will be entered http 192 168 254 102 index html er70 500 NOTE All temperatures entered must be of the format Figure ...

Page 27: ... member of the Olancha Group Ltd Registered in England No 4004881 VAT Registration No GB164 5653 45 EM01b Websensor Instruction Manual 27 An example of entering a Celsius temperature of 25 5 degrees would be http 192 168 254 102 index html er25 500 NOTE Websensor Temperature Units should be selected prior to temperature cali brations Figure 27 How to obtain a Thermistor reading ...

Page 28: ...that can be measured is 0 0 VDC to 18 VDC This feature can be used to monitor the Websensor s supply voltage in applications where the Websensor is located remotely and is being powered by a battery NOTE The Websensor is normally configured to measure its own supply voltage However the Websensor can be ordered and configured so that an external DC voltage source can be measured Prior to using the ...

Page 29: ... the Websensor order is placed Before accurate DC Voltage readings can be taken it will be necessary to calibrate the Websensor by using a DVM digital volt meter to accurately measure the DC Voltage which the Websensor will be reading Figure 29 Command to calibrate DC Voltage Measurement Once the calibration value is known enter it into the Websensor using the following command In this example the...

Page 30: ... 118 976 9023 44 0 118 976 9020 sales sensormetrix co uk www sensormetrix co uk sales fax email web A member of the Olancha Group Ltd Registered in England No 4004881 VAT Registration No GB164 5653 45 EM01b Websensor Instruction Manual 30 Figure 30 Command to Measure DC Voltage ...

Page 31: ...ex html etpC Change temperature to Celsius http 192 168 254 102 index html eFC Change additional functions to door closed http 192 168 254 102 index html eFR Change addition function to additional thermistor http 192 168 254 102 index html eFV Change additional functions to voltage measure http 192 168 254 102 index html ev Measure voltage command http 192 168 254 102 index html ecXXXXX Calibrate ...

Page 32: ... correct Ethernet patch cable is being used When properly connected the LEDS on the NIC card should light No LEDs lit may indicate some hardware issue like an incorrect or a faulty cable is being used Connecting the Websensor directly to the NIC of a PC requires a crossover type of patch cable The crossover cable included in the Websensor Kit is solid GREY colour with BLACK connectors Connecting t...

Page 33: ... server You can use any web browser to access the Websensor Q Q Will a Websensor initialize any kind of TCP IP communication A A No The Websensor will not initialize any TCP IP communication It only listens on port 80 waiting for other computers to send a HTTP request Q Q How does the Websensor return data to the computer which sends the HTTP request A A Every TCP IP packet will include the destin...

Page 34: ...r Instruction Manual 34 Q Q How do computers know the Websensor s MAC Address A A Websensor has a portion of the ARP protocol built in It will only do ARP responds RFC1180 For further information and details on IP kindly reference RFC791 INTERNET PROTO COL DARPA INTERNET PROGRAM PROTOCOL SPECIFICATION and other related documents Websensor connection over the internet Websensor EM01b HVAC Monitor T...

Page 35: ... B MAC address and then sends the request to Websensor B Websensor B uses the IP of Server A and MAC of Router B to return the TCP IP packet back to Router B Router B knows how to forward these packets back to Router A Server A IP address Router A forwards the Websensor data packet back to Server A Example C Computer B tries to access Websensor C The HTTP request will be forwarded by Router B with...

Page 36: ...tack on the EM01b Websensor Power LED blinks and the devices loses connectivity Solution The small Ethernet stack on the EM01b Websensor cannot service multiple simultaneous requests and work on a 10BaseT You might want to put the EM01b behind a 10 100 Switch to filter the traffic Avoid multiple simultaneous requests to the device Specifications Ranges Temperature 40 C 40 F to 123 8 C 254 9 F Illu...

Page 37: ...lug in s written in both PERL and C languages are provided on our website http www sensormetrix co uk em01b stn_websensor_p_12 php IP Based Facility Management Suite Contact Sensormetrix for more information on IP based remote monitoring of your facility incorporating alarm and reporting functionality Let us demonstrate to you how management of alarms and reports via your existing network can be u...

Page 38: ...reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language in any form or by any means without the written permission of Olancha Group Ltd To improve internal design operational function and or reliability Olancha Group Ltd reserves the right to make changes to the products described in this document without notice Ol...