Omega Vehicle Security TCIC User's Manual
Contents
1. year VEGA WARRANTY i a LI Extended Warranty Program Shop online at omega com OMEGA omega com e mail info omega com For latest product manuals omegamanual info TCIC SERIES High Speed 8 Channel Thermocouple Interface Cards omega com LEOMEGA OMEGAnet Online Service Internet e mail omega com info omega com U S A ISO 9001 Certified Canada Servicing North America One Omega Drive P O Box 4047 Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 Canada TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance U S A and Canada Sales Service 1 800 826 6342 1 800 TC OMEGA Mexico Czech Republic Germany Austria United Kingdom ISO 9002 Certified Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN En Espa ol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx Servicing Europe Frystatska 184 733 01 Karvina Czech Republic TEL 420 0 59 6311899 FAX 420 0 59 6311114 Toll Free 0800 1 66342 e mail info omegashop cz Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de2. 4 Card Filter level 5 CR LF That is the contents of the string is Channel 1 reading tab character Channel 2 reading tab character Channel 3 reading tab character Channel 4 reading tab character Channel 5 reading tab character Channel 6 reading tab character Channel 7 reading tab character Channel 8 reading tab character Cold Junction reading tab character Output status eight characters either O off or 1 on Card Filter level one character either 0 standard or 1 high CR LF As each reading both channel and cold junction is padded to have a fixed length of 8 characters the whole string has a fixed length of 90 characters excluding the CR LF TCIC returns version number information plus CR LF 26 TCIC User s Manual 4 2 Change Output Status The one character a command turns output 1 off The one character A command turns output 1 on Similarly the one character b through h and B through H commands turn the other channels 2 8 off or on respectively 21 TCIC User s Manual 4 3 Setpoint Configuration The switch on amp switch off limits define the points where the output will go on and possibly back off The relation between the switch on limit and the switch off limit defines the direction of the mechanism Switch on limit gt Switch off limit trigger on upwards
3. 0 5 Sec One refresh each 0 5 sec e seconds One refresh each x seconds where x is user defined x should be at least 0 5 and at most 1000 Channel Settings The following are individual settings for each channel Channel Name at The user may assign a name to each channel This name is displayed as Channel Title refer to section 3 5 1 giving the user more control on his system Input Limits The Input Limits Min amp Max define the expected temperature or mV range The low amp high limits on the analog display and on graph s vertical axis temp will be based on Min amp Max usually the range of the analog display will be somewhat wider Min Minimal expected temperature Max Maximal expected temperature 20 TCIC User s Manual 3 2 2 3 Calibration and Defaults Change Calibration The TCIC is factory programmed with the value of the on board reference voltage 1 25V However this default 1 25V value may be re defined in the range 1 2375V to 1 2625V that is 1 25V 1 In order to find out the voltage use a high resolution DVM at least 5 5 digits and measure between GND and COM in the screw terminal CONN1 or CONN2 Click Change Calibration and enter your measured new value Reset to Factory Default Values You may return the card to its initial factory settings e All channels set to voltage reading Input Type mV Temperature Unit C All Output
4. 3 TCIC Monitor The TCIC Monitor utility is an initial setup tool and a smart data logger package for monitoring amp collecting readings in high speed including graphic mode display The TCIC Monitor works with both driver types refer to section 1 Main Features Communication It detects which driver type direct or VCP is installed and communicates with the card s using that driver the type of the driver detected is reported in the title More than one TCIC board may be connected to the PC while using the TCIC Monitor the user should select the required board It is legitimate to run the TCIC Monitor twice or more selecting each time another free board Likewise when no free board is detected the TCIC Monitor lets the user to work in Demo mode Note The TCIC Monitor was developed under WET dot NET so it requires the dotnet framework V1 1 4322 in order to run The setup for this dotnet framework is available free via Microsoft site however to facilitate the process it is included in the attached CD ROM named dotnetfxV1 1 4322 exe TCIC User s Manual The markings in the screenshot below show the section where each part of the display is described 8 TCIC MONITOR V3 00 Card Version V2 06 nn detected Direct USB Driver File Setup Library T TELLES 3 6 Cold Junction Temperature 22 362 C 14 TCIC User s Manual 3 1 Title This main title shows the versions o
5. FTDI Uninstaller Uninstalling VID_0403 amp PID_6010 Deleting registry entries Deleting files Press Finish to exit continue Finish Click Finish 4 2 Connect the TCIC card to your PC TCIC User s Manual 4 3 The Found New Hardware Wizard appears Select the last option like this Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for current and updated software by looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission Read our privacy policy Can Windows connect to Windows Update to search for software O Yes this time only Yes now and every time connect a device No not this time Click Next to continue 4 4 Press Next and select the second option Found New Hardware Wizard This wizard helps you install software for TCIC Thermocouple Interface Card If your hardware came with an installation CD lt 6 or floppy disk insert it now What do you want the wizard to do Install the software automatically Recommended Install from a list or specific location Advanced Click Next to continue 10 TCIC User s Manual 4 5 Press Next and browse to the VCP driver folder Found New Hardware Wizard Please choose your search and installation options Search for the best driver in these locations Use the check boxes below to limit o
6. Modes Manual All Setpoints both switch on and switch off 0 Reference Voltage 1 25V Card Filter Level Standard 3 2 2 4 Card Address This display is meaningful only in case of a multi card system see section 5 The current card address is displayed Likewise the card can be re configured to another address For more details refer to the Configuring a Card Address paragraph in section 5 3 2 2 5 View All Settings Read Only The View All Settings display shows in view only mode the following values e Card Settings section 3 2 2 1 e TCIC Monitor Settings section 3 2 2 2 e Calibration reference voltage section 3 2 2 3 21 TCIC User s Manual 3 2 3 Library There is a settings library on the PC disk in which all settings may be stored both Card Settings section 3 2 2 1 and TCIC Monitor Settings section 3 2 2 2 The library files reside in the subfolder TCIC_Lib under the installation folder for example C Program Files IMS TCIC MONITOR TCIC_Lib 3 2 3 1 Load Loads a setting set from the library Once you want the loaded set to take effect click the Save Settings amp Exit button As long as you dont click that button the previous set remains in effect 3 2 3 2 Save Saves the current setting set into the library 3 2 3 3 Delete Deletes a setting set from the library 3 3 Outputs Box This box both describes the status of the 8 outputs and
7. OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTY DISCLAIMER language and additionally purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product s in such a manner RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the OMEGA Customer Service Department BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OMEGA S CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit
8. Setpoint Configuration 4 4 Sample Program 4 5 Troubleshooting 5 Multi Card System 6 USB RS232 amp RS485 7 Specifications 8 LabVIEW Sample TCIC User s Manual 1 Main Features e Very High Speed amp High Resolution e Supports up to 8 channels differential inputs e Each channel can be set for a thermocouple reading or for a voltage millivolt reading e Internal A D resolution 24 bit not all are used e Sampling rate 400 Hz 50 Hz for each channel e Single opto isolated output per channel which can be used as a Set point alarm etc or as a general purpose output e Conversion tables are on board to enable stand alone operation e Reading is in F C or mV e CJC Cold Junction Compensation built on board e Each channel supports the most popular families of thermocouples E J K R S T or any indefinite voltage source in the range 500mV gt 500mvV e USB as a standard method of communication e USB RS485 and RS232 option e Multiple boards may be connected via USB or the optional RS485 e On board high accuracy reference voltage for easy calibration e No need for external power supply when used with USB e Includes Windows software for initial setup and also a Smart data logger package for monitoring amp collecting readings in high speed with graphic mode display Communication Two types of drivers are available e The direct driver provides access via a DLL supplyin
9. The following thermocouple types and temperature ranges are supported by onboard ITS 90 polynomial conversion functions Thermocouple Type Range C Accuracy C Resolution C based on 1uVrms noise J 210 to 1200 1 5 0 019 K 200 to 1372 1 5 0 024 E 200 to 1000 1 5 0 015 R 50 to 1768 2 0 0 125 S 50 to 1768 t 2 0 0 143 T 200 to 400 t 1 5 0 022 Total accuracy allowing for the effects of millivolt measurement accuracy cold junction compensation and conversion to temperature using the onboard conversion functions 7 5 Switch Outputs Connection is via a 10 way screw terminal connector 3 81 mm pitch 8 optically isolated MOSFET switches each with an indicator LED External I O supply required in range 10 30V Output rating max 0 25A per output WARNING The TCIC inputs are not electrically isolated from the TCIC USB RS232 RS485 or Ethernet ports and hence any attached PC PLC etc Sensor inputs must never be attached to hazardous voltages The channel input voltages relative to TCIC GND must never exceed 10 Volts 38 TCIC User s Manual 8 LabVIEW Sample The LabVIEW sample was created with LabVIEW 6 1 using the VCP Virtual COM Port driver Figure 1 shows the screen that the LabVIEW sample produces that is virtual thermometers of all the eight channels and a graph of one of these channels user selectable Here is an explanation of the LabVIEW samp
10. address is other than a it will be deselected This ensures that a card will not remain in selected mode and then connected to RS485 causing a situation of more than one card selected in the same time In other words user s application should be the only source that selects a card 30 TCIC User s Manual 4 5 Troubleshooting Q I can communicate with the TCIC when it is located in COM1 through COM9 but when it is in COM10 or more my application does not work The TCIC Monitor however works fine A Opening COM port 10 or above is done differently Prefix to its name For example In C CreateFile COM10 In VB Net Creates a COM Port stream handle Dim COM_Name As String COM amp miPort ToString If miPort gt 9 Then COM_Name COM amp miPort ToString End If mhRS CreateFile COM_Name _ GENERIC_READ Or GENERIC_WRITE 0 0 _ OPEN_EXISTING iMode 0 31 TCIC User s Manual 5 Multi Card System This section is relevant only for the TCIC with the RS485 communication option Introduction The TCIC s RS485 communication option supports multi card systems In order to utilize this feature two TCIC operations are required e Card configuration e Card selection Card configuration carried out by the TCIC Monitor utility see section 3 2 2 4 sets a card s address to one of 26 options This address is saved in the card s non volatile memory ensurin
11. change When current reading is larger than switch on limit output goes on If the channel is defined as Latch the output remains on until turned off manually If the channel is defined as Auto the output goes back off when reading is smaller then switch off limit Switch on limit lt Switch off limit trigger on downwards change When current reading is smaller than switch on limit output goes on If the channel is defined as Latch the output remains on until turned off manually e If the channel is defined as Auto the output goes back off when reading is larger then switch off limit Switch On Limit A or B through H Sets switch on limit for the specified channel 1 8 PC must send channel s letter and a string representing a floating point value in the range 2000 0 to 2000 0 followed by CR E g to set switch on limit for channel 3 to 145 2 the PC would send C145 2 with CR Note the C is the channel selection If the string is accepted as valid the TCIC returns OK with CR LF and stores the value in its non volatile memory Else the TCIC returns ERR with CR LF and does not store the value 28 TCIC User s Manual The TCIC returns a string containing actual 8 switch on limits each followed by a tab 0x09 The end of the string is followed by CR LF Each value is padded to hav
12. enables to manually change their status Just click to invert output status Note that an output is sometimes accessible for manual change and sometimes not depending on the selection of Output Mode and the actual value of the output Output Mode Manual Output is accessible for manual change Output Mode SP Auto Output is not accessible for manual change Output Mode SP Latch Output is accessible only in order to turn it off In other words The output can be turned on only by the card and turned off only manually 22 TCIC User s Manual 3 4 Save to File Command Start or Stop The Save to File function enables recording card s readings in a text file Upon clicking Start Save to File the program suggests an automatic file name based on the current time amp date Either accept this suggested name or change it then click Save The recording operation goes on until you press the same button again Stop Save to File or exit the TCIC Monitor The readings files reside in the subfolder TCIC_Readings under the installation folder for example C Program Files IMS TCIC MONITOR TCIC_Readings 3 5 Channel Boxes 3 5 1 Channel Title Displays the Channel Name refer to section 3 2 2 2 3 5 2 Digital Display Displays current channel s reading Reading s unit is C F or mV according to user s setting of Temperature Unit and the specific channel s Input Type s
13. length of 8 characters so the string has a fixed length of 72 characters excluding the CR LF That is the contents of the string is Channel 1 reading tab character Channel 2 reading tab character Channel 3 reading tab character Channel 4 reading tab character Channel 5 reading tab character Channel 6 reading tab character Channel 7 reading tab character Channel 8 reading tab character CR LF gt The channel values may represent C F or millivolts depending on the Card Settings selection gt In case a channel has been defined in the Card Settings as a thermocouple source Input Type is not mV and the card recognises that the channel is disconnected that channel value will be 9999 000 indicating an open condition 25 TCIC User s Manual Returns the board Cold Junction in C or F whatever was selected in Card settings plus CR LF The value is padded to have a fixed length of 8 characters so the string has a fixed length of 8 characters excluding the CR LF upper case letter O The TCIC returns a string of the form 11110000 plus CR LF indicating the actual status of the output switches 1 8 0 off 1 on The TCIC returns a string that includes the following items 1 The response on the gt command excluding the CR LF 2 The response on the T command excluding the CR LF 3 The response on the O command excluding the CR LF
14. 7 Infrared Pyrometers PRESSURE STRAIN AND FORCE iA Transducers amp Strain Gages W Load Cells amp Pressure Gages Displacement Transducers WY Instrumentation amp Accessories FLOW LEVEL A Rotameters Gas Mass Flowmeters amp Flow Computers WY Air Velocity Indicators W Turbine Paddlewheel Systems iA Totalizers amp Batch Controllers pH CONDUCTIVITY i pH Electrodes Testers amp Accessories 1 Benchtop Laboratory Meters W Controllers Calibrators Simulators amp Pumps Industrial pH amp Conductivity Equipment DATA ACQUISITION W Data Acquisition amp Engineering Software W Communications Based Acquisition Systems i Plug in Cards for Apple IBM amp Compatibles IY Datalogeing Systems W Recorders Printers amp Plotters HEATERS W Heating Cable A Cartridge amp Strip Heaters A Immersion amp Band Heaters Flexible Heaters Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL A Metering amp Control Instrumentation A Refractometers A Pumps amp Tubing A Air Soil amp Water Monitors Industrial Water amp Wastewater Treatment W pH Conductivity amp Dissolved Oxygen Instruments M4330 0506
15. Can Windows connect to Windows Update to search for software O Yes this time only Yes now and every time connect a device No not this time Click Next to continue TCIC User s Manual 3 5 Press Next and select the second option Found New Hardware Wizard This wizard helps you install software for TCIC Thermocouple Interface Card C If your hardware came with an installation CD lt 6 or floppy disk insert it now What do you want the wizard to do Install the software automatically Recommended Install from a list or specific location Advanced Click Next to continue 3 6 Press Next and browse to the Direct DLL driver folder Found New Hardware Wizard Please choose your search and installation options Search for the best driver in these locations Use the check boxes below to limit or expand the default search which includes local paths and removable media The best driver found will be installed C Search removable media floppy CD ROM Include this location in the search E TCIC FTDI D2XX Direct DLL Driver A Don t search will choose the driver to install Choose this option to select the device driver from a list Windows does not guarantee that the driver you choose will be the best match for your hardware TCIC User s Manual 3 7 Click Next Hardware Installation The software you are installing for this hardware FTDI FT
16. FOR WARRANTY RETURNS please have the FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE for current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 Purchase Order number under which the product 1 Purchase Order number to cover the COST was PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of the product and warranty and 3 Repair instructions and or specific problems 3 Repair instructions and or specific problems relative to the product relative to the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 2006 OMEGA ENGINEERING INC All rights reserved This document may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of OMEGA ENGINEERING INC Where Do Find Everything I Need for Process Measurement and Control OMEGA Of Course Shop online at omega com TEMPERATURE WA Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies WA Wire Thermocouple RTD amp Thermistor A Calibrators amp Ice Point References A Recorders Controllers amp Process Monitors W
17. One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk It is the policy of OMEGA Engineering Inc to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification The information contained in this document is believed to be correct but OMEGA accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for human applications TCIC User s Manual 1 Main Features 2 Installation 3 TCIC Monitor 3 1 Title 3 2 Menus 3 2 1 File 3 2 1 1 Exit 3 2 2 Setup 3 2 2 1 Card Settings 3 2 2 2 TCIC Monitor Settings 3 2 2 3 Calibration and Defaults 3 2 2 4 Card Address 3 2 2 5 View All Settings Read Only 3 2 3 Library 3 2 3 1 Load 3 2 3 2 Save 3 2 3 3 Delete 3 3 Outputs Box 3 4 Save to File Command Start or Stop 3 5 Channel Boxes 3 5 1 Channel Title 3 5 2 Digital Display 3 5 3 Analog Display 3 5 4 Channel Description 3 5 5 Show Graph Command 3 6 Cold Junction Temperature 4 Command Set 4 1 Requesting Data 4 2 Change Output Status 4 3
18. SUZXx Device has not passed Windows Logo testing to verify its compatibility with Windows xP Tell me why this testing is important Continuing your installation of this software may impair or destabilize the correct operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the hardware vendor for software that has passed Windows Logo testing Continue Anyway STOP Installation 3 8 Press Continue Anyway Found New Hardware Wizard Please wait while the wizard installs the software FTDI FTSU2XX Device Ie o Setting a system restore point and backing up old files in case your system needs to be restored in the future TCIC User s Manual Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finished installing the software for a FTDI FT8U 2 Device Click Finish to close the wizard Back Cancel Click Finish that s it TCIC User s Manual 4 Installing the VCP Virtual COM Port Driver 4 1 If the Direct DLL Driver is installed uninstall it as follows Click Start Control Panel Add or Remove Programs FTDI FTD2XX USB Drivers Change Remove FTDI Uninstaller If your USB device is connected please unplug it now Press Continue to uninstall the drivers or Cancel to quit Disconnect all TCIC boards from the USB port and click Continue
19. cularly section 4 provide a more comprehensive guide to the features and command set of the TCIC that may be accessed by a user s application 39 TCIC User s Manual TCIC_Demonstration_270306 vi Eile Edit Operate Tools Browse Window Help saem Select COM Port COM7 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 Temperature Chart Channel ale Figure 1 output screen of the LabVIEW sample x COM7 Measurement amp Automation Explorer File Edit View Tools Help Confi at ES Properties open VISA Session Q My System Name Value Desc Back EA Data Neighborhood VISA Resource Name ASRL13 INSTR VISA resource identifier for this device Devices and Interfaces VISA Alias COM Unique VISA alias to access this device Serial and Parallel Port PXI PXI System Unidentified Static Device o Tells whether this device was statically added Ports erial amp Parallel Enabled 1 Tells whether this device is enabled Basics com Port Binding COM Port that this device is bound to 4 come Interface Name ASRL13 COM USB Serial Port Human readable text that describes this interf A coma Baud Rate 9600 Rate at which this port will communicate YY coma Data Bits 8 Number of data bits in the data stream How do I use MAX with my serial and J LPT1 Parity None Parity of the data stream peatel pos SY PT2 Stop Bits 1 Number of stop bits in the data stream Abhough yourseiGlie
20. de SP Latch the only meaning of Off 110 is to set the direction as 110 gt 100 Specifying Off 120 will give the same effect 3 2 2 2 TCIC Monitor Settings Adjusts the settings that reside in the PC i e in a file The settings at a glance Common Settings Temperature Unit C F view only Filter Off 2 4 8 16 32 64 128 256 Sampling Rate Max 0 5 Sec seconds Channel Settings Channel Name Input Limits Min Max The settings in detail Common Settings The following are common settings for all the channels Temperature Unit C F view only The user may define system s Temperature Unit This Temperature Unit is actually a part of the Card Settings section 3 2 2 1 it does not reside in the PC Though for convenience s sake the Temperature Unit is shown in the TCIC Monitor Settings display but restricted to view only Filter Off 2 4 8 16 32 64 128 256 The Filter defines the filtering degree of the readings A higher filter leads to more stable readings display but slower response to changes a ower filter will give the opposite faster response to changes but less stable readings display TCIC User s Manual Sampling Rate Max 0 5 Sec seconds The Sampling Rate defines the frequency in which readings are refreshed on the display There are three options e Max Maximal rate that the card can support e
21. e a fixed length of 8 characters so the string has a fixed length of 72 characters excluding the CR LF Switch Off Limit a or b through h Sets the switch off limit for the specified channel 1 8 PC must send channel s letter and a string representing a floating point value in the range 2000 0 to 2000 0 followed by CR E g to set switch off limit for channel 3 to 145 2 the PC would send c145 2 with CR Note the c is the channel selection If the string is accepted as valid the TCIC returns OK with CR LF and stores the value in its non volatile memory Else the TCIC returns ERR with CR LF and does not store the value The TCIC returns a string containing actual 8 switch off limits each followed by a tab 0x09 The end of the string is followed by CR LF Each value is padded to have a fixed length of 8 characters so the string has a fixed length of 72 characters excluding the CR LF gt For more details and examples refer to section 3 2 2 1 Card Settings parameters Output Mode and Set Points Switch 29 TCIC User s Manual 4 4 Sample Program The sample program is an improved version of Microsoft s example Using the Comm Port This is a basic VB Net program that clearly shows how to communicate with the card The sample program works with both driver types refer to section 1 Main Features Communication It detects which driv
22. ee section 3 2 2 1 3 5 3 Analog Display Displays the same reading as in the Digital Display in an analog form The limits of the meter are based on the Input Limits refer to section 3 2 2 2 3 5 4 Channel Description Displays card s Channel Settings section 3 2 2 1 3 5 5 Show Graph Command Displays current channel in a graph Graph s display may be resized dragging its edge or corner as customary in Windows or magnified using the Maximize button 23 TCIC User s Manual 3 6 Cold Junction Temperature Displays the temperature of the cold junction which is essential for the CJC Cold Junction Compensation The value of the cold junction temperature is meaningful only when the Input Type is some thermocouple i e it s irrelevant in case the Input Type is mV or of course None 24 4 Command Set TCIC User s Manual The communication with the TCIC is via USB standard or RS232 or RS485 optional Notes 1 After the TCIC has been powered on user application software should send a single null 0x00 character to the TCIC prior to commencing regular communications 2 There is one more command card selection in a multi card system described in the next section section 5 4 1 Requesting Data ys The TCIC returns a string containing the 8 actual channel values each followed by a tab 0x09 The end of the string is followed by CR LF Each value is padded to have a fixed
23. er type direct or VCP is installed and communicates with the card using that driver the type of the driver detected is reported in the title More than one TCIC board may be connected to the PC while using the sample program however the sample program communicates only with one board the last one detected Upon running the program press the Check for Ports button and then the Check for TCIC button The box below this button should show something like Using TCIC on COM7 or Using TCIC on USBI Now to send a command to the TCIC 1 Type the required command in the User Command Box 2 Select the proper C R mode One or two character commands do not require C R so C R should be unchecked Three or more character commands do require C R so C R should be checked 3 Click the Send User Command button or press lt Enter gt Card s response is shown in the frame on the right side Note The sample program supports also a card that is configured to a non default i e non a address refer to section 5 Its policy is the same as with the TCIC Monitor that is Upon initialization card a is selected a so no matter what is the current card s address it will be selected for communication Note that this implies that while using the sample program only one board may be connected to the same port even though RS485 is used Upon termination if card s
24. f the TCIC Monitor and of the card For example the title in the above screenshot indicates that the version of the TCIC Monitor is 1 03 while card s version is 2 01 3 2 Menus The menus enable various operations as described below 3 2 1 File 3 2 1 1 Exit Leaves the TCIC Monitor program 3 2 2 Setup 3 2 2 1 Card Settings Adjusts the settings that reside in the card on its non volatile memory The settings at a glance Common Setting Temperature Unit oC F Channel Settings Channel Name view only Input Type None TC E TC J TC K TC R TC S TC T mV Output Mode SP Auto SP Latch Manual Set Points Switch On Off TCIC User s Manual The settings in detail Common Setting The following is a common setting for all the channels Temperature Unit Cy F Selects the temperature unit for all channels whose Input Type is defined as a thermocouple i e TC E TC J TC K TC R TC S or TC T In other words this setting has no effect on channels whose Input Type is mV or None Channel Settings The following are individual settings for each channel Channel Name a view only The user may assign a name to each channel This Channel Name is actually a part of the TCIC Monitor Settings section 3 2 2 2 it does not reside in the card Though for convenience s sake the Channel Name is shown in the Card Settings display but restricted to view
25. ftware commands The setpoint indicator definition however is more complicated The main idea is that when output x is defined as a setpoint indicator SP Auto or SP Latch it will go high on when input x crosses the Set Points Switch On limit Now there are still some points to clarify The user may define two characteristics of the setpoint indication How will the indication stop i e output goes off Automatically or manually Selecting SP Auto means automatic stop of the indication The turn off operation will occur when input x crosses the Set Points Switch Off limit That mechanism enables the user to define a hysteresis eliminating undesirable fluctuations in the status of the output Selecting SP Latch means that once there is setpoint indication output is on the output will stay on until manually turned off by the TCIC Monitor The direction of temperature change that will trigger the indication Will the indication be supplied upon crossing the On limit upwards or downwards This characteristic is controlled by the Set Points Switch Off limit as described below TCIC User s Manual Set Points Switch On wie Defines the limit that upon its crossing output x will go high on signaling a setpoint indication Off 1 Defines the direction of temperature change that will trigger the indication Off lt On means indication up
26. g functions to directly control the device e The VCP Virtual COM Port driver would make the TCIC appear as a spare COM port on the PC e g COM3 TCIC User s Manual Setpoints Each channel may be defined as a setpoint which means that the corresponding output will turn on upon crossing some level The setpoint user defined selection also controls the direction of the setpoint indication that is turn the output on upon crossing the limit either upwards or downwards In other words the direction of the trigger is user defined Likewise the user may define a Aysteresis behavior e g the output turns on when the temperature goes above some limit and only goes off again when the temperature falls below another lower limit thus eliminating undesirable fluctuations in the status of the output TCIC User s Manual 2 Installation The following description refers to Windows XP Obviously on another operating system it might be different 1 Make sure that all package files have been copied and unzipped if necessary to your hard disk 2 Two types of drivers are available Install the one that meets best your requirements Note that only one driver may be installed at the same time That is if for some reason you want to switch to the other driver first uninstall the retired one e The direct driver provides access via a DLL supplying functions to directly control the device e The VCP Virtual COM Port d
27. g that once a card has been configured the address is retained even if the card is powered off Card selection carried out by user s application activates the communication with a card that has a specific address and de activates de selects the communication with all other cards in the system Once a card is selected regular communication can take place i e the card will respond to instructions from the main command set A selection lasts until an alternative address selection is applied or power is off The Status LED LED2 reflects whether a card is selected or not LED2 off means card not selected LED2 on means card selected Addresses There are 26 potential card addresses denoted by the letters a z lower case Address a the factory default is unique in the sense that its selection activates the card connected regardless of its address configuration Obviously address a should be used only when a single card is connected Otherwise all connected cards will respond causing an RS485 bus conflict 32 TCIC User s Manual One Card System When a system includes only one card neither configuration nor selection is required as the card is factory defaulted to address a Indeed if a card has been configured to some non a address and later it is required as a single card you may re configure it to address a eliminating the need for the selection function in yo
28. hould be used in single TCIC RS485 applications In applications where multiple TCIC boards reside on one RS485 bus the termination impedance should only be added on the last board on the bus COMMUNICATION PARAMETERS For both the full duplex RS232 and half duplex RS485 interfaces the communications parameters are fixed as follows Baud Rate 115 200 baud Data 8 bits Parity None Stop Bits 1 gt This is generally referred to as 8 N 1 35 TCIC User s Manual POWER SUPPLY Using an external power supply is optional on USB applications but essential for RS232 and RS485 applications e When used the external power supply should be connected to the 5V connector CONN3 e Near this 5V connector there is the LK1 jumper and rightwards there is the LK5 jumper Option 1 5V from the USB port Put the LK1 amp LK5 jumpers in the USB side Option 2 External 5V supply Put the LK1 jumper in the DC JACK side Put the LK5 jumper in the NOT USB side The external supply should be 5V DC 5 only Using USB hubs The TCIC may be connected to a USB hub provided that Either 1 The USB hub is externally powered such that the USB ports of the hub meet the standard USB power specification In this case use option 1 Or 2 A bus powered USB hub with no external supply to the hub is used but the TCIC takes its power from the TCIC DC jack In this case use option 2 36 TCIC Use
29. le amp how it might be used The included sample LabVIEW vi file enables users of LabVIEW to quickly start acquiring data from the TCIC If a LabVIEW application is to be used simply to acquire data from the TCIC then it is recommended that the TCIC Monitor is used to configure the TCIC prior to communication with LabVIEW For the LabVIEW sample the TCIC Monitor should be used to setup the TCIC for 8 thermocouple i e not mV inputs The LabVIEW sample is setup for serial communication with the TCIC This can be either via USB using Virtual COM Port drivers supplied with the TCIC or through direct RS232 or RS485 COM ports If USB communication is being used then the TCIC USB drivers must be installed prior to using LabVIEW also the TCIC must be attached and powered before LabVIEW is started otherwise LabVIEW will not see the USB virtual COM port The sample vi requires that the correct COM port is selected prior to running the application use NI s Measurement and Automation Explorer often abbreviated to MAX to search for attached devices This utility is available when the LabVIEW system is present Figure 2 is a screenshot of MAX where the TCIC appears as COM7 as it does on the LabVIEW sample screen also refer to the top of figure 1 The LabVIEW sample is provided as is and is only intended as a starting point to developing TCIC LabVIEW applications The other parts of the User s Manual parti
30. on crossing the On limit upwards Off gt On means indication upon crossing the On limit downwards 2 When Output Mode SP Auto the Off limit plays one more role It defines the hysteresis i e the limit where the output will go low off again To make the above description more comprehensible some examples follow Example 1 Output Mode SP Auto On 100 Off 90 The output will go high on when the temperature rises from 99 to 100 and back low off upon falling from 91 to 90 Example 2 Output Mode SP Auto On 100 Off 110 The output will go high on when the temperature falls from 101 to 100 and back low off upon rising from 109 to 110 Example 3 Output Mode SP Latch On 100 Off 90 The output will go high on when the temperature rises from 99 to 100 and stay high regardless of any temperature change until manually turned off Note that as Output Mode SP Latch the only meaning of Off 90 is to set the direction as 90 lt 100 Specifying Off 80 will give the same effect TCIC User s Manual Example 4 Output Mode SP Latch On 100 Off 110 The output will go high on when the temperature falls from 101 to 100 and stay high regardless of any temperature change until manually turned off Note that as Output Mo
31. only Input Type None TC E TC J TC K TC R TC S TC T mV Each channel may be referred to as one of three main types Channel not in use None In this case channel s description section 3 5 4 will show Not in Use regardless of the input coming in that channel Channel represents a thermocouple whose type is one of the six supported ones E J K R S or T The card converts the sampled voltage to degrees C or F taking into account the cold junction temperature So the readings passed by the card are in degrees C or F the TCIC Monitor shows these readings in the displays and in the graph in degrees either In case the card detects that no thermocouple is connected it reports it to the PC so the TCIC Monitor displays OPEN in that case Channel represents an indefinite source of voltage to be reported in millivolts mV not in degrees In this case there is no OPEN indication when a channel is disconnected TCIC User s Manual Output Mode SP Auto SP Latch Manual This is actually output x setting rather than channel x setting This setting defines the nature of output x x 1 2 8 Roughly speaking output x may be either a setpoint indicator of channel x or a manual output with no relation to channel x nor any other channel Manual output simply means that the output can be turned on or off directly by the host PC by simple so
32. ound to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGA s control Components in which wear is not warranted include but are not limited to contact points fuses and triacs OMEGA is pleased to offer suggestions on the use of its various products However OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants only that the parts manufactured by the company will be as specified and free of defects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESSED OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclusive and the total liability of
33. r s Manual 7 Specifications 7 1 Power Supply 5 0 VDC 5 from either external supply via DC jack or from USB Bus jumper selectable 7 2 Communication Ports 7 2 1 USB Either USB bus powered or locally powered Compatible with USB 2 0 and USB 1 1 Up to 921 600 baud using either direct or VCP Virtual COM Port driver 7 2 2 RS232 RS485 option Available on a 9 way D connector RS232 allows connection to PC with straight through 9D 9D lead cable RS485 Half duplex 2 wire Jumper option to terminate line with 120 Ohms Up to 25 TCIC boards may be connected to one RS485 bus Factory set baud rate of 115 200 baud 7 3 Analog Inputs 8 fully differential inputs for connection to floating thermocouples or floating millivolt sources Full scale differential input is 500millivolts Open thermocouple detection on each channel Connection is via 2 off 10 way screw terminal connectors 3 81 mm pitch Bias current 120 nA Maximum allowable input voltage 10 Volts relative to the GND terminal Common mode input range 0 25V to 4 0V relative to the TCIC GND terminal ADC Internal Resolution 24 bits ADC Noise free resolution Noise of 1 microvolt rms giving ENOB 20 bits on 500 mV or ENOB 15 9 bits for a type K thermocouple ADC Sampling rate 400 Hz 50 Hz for each channel Millivolt accuracy Uncalibrated 0 05 Gain drift 5ppm C typical 10ppm C maximum 37 TCIC User s Manual 7 4 Thermocouple Types
34. r expand the default search which includes local paths and removable media The best driver found will be installed C Search removable media floppy CD ROM Include this location in the search EATCIC FTDI VCP Virtual COM Port Driver Don t search will choose the driver to install Choose this option to select the device driver from a list Windows does not guarantee that the driver you choose will be the best match for your hardware 4 6 Click Next Found New Hardware Wizard Please wait while the wizard installs the software USB Serial Converter ftdiun2k ini To C WINDOWS system32 Cancel 11 TCIC User s Manual Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finished installing the software for USB Serial Converter Click Finish to close the wizard Finish that s it Notes 1 It might occur that the wizard will return to step 4 3 requiring to repeat the process This is normal just repeat steps 4 3 4 6 2 The package includes also an RS232 terminal found on the Web called Termite through which the TCIC may be communicated when the VCP driver is installed Termite http www compuphase com software_termite htm is freeware yet it is easy to use and easy to configure TCIC communication parameters are Baud Rate 115 200 Data 8 bits Parity None Stop Bits 1 TCIC User s Manual
35. rd paielal pale ave 3 com Flow Control None Type of flow control for communication automatically configured to default settings you can use MAX to custom configure test and ji San cbs dean saie TE MAN EEA Ir tise displays your systems devices and ports Right Software click on your serial or parallel port name in the a Remote Systems configuration tree to configure your port What can do at the serial and parallel port level You can rename and view properties for your ports communicate with devices and remove serial resources What do you want to do Rename my device Communicate with my properties or baud rates for my se ports m Remove a serial resource DY Attributes Figure 2 LabVIEW s MAX Measurement and Automation Explorer 40 WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase OMEGA s WARRANTY adds an additional one 1 month grace period to the normal one 1 year product warranty to cover handling and shipping time This ensures that OMEGA s customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service Department will issue an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is f
36. river would make the TCIC appear as a spare COM port on the PC e g COM3 Consider which driver is best for you and proceed accordingly to step 3 or 4 3 Installing the Direct DLL Driver 3 1 If the VCP Virtual COM Port Driver is installed uninstall it as follows Click Start Control Panel Add or Remove Programs FTDI USB Serial Converter Drivers Change Remove FTDI Uninstaller Version 2 1 If your USB device is connected please unplug it now Press Continue to uninstall the drivers or Cancel to quit Continue Disconnect all TCIC boards from the USB port and click Continue TCIC User s Manual FIDI Uninstaller Version 2 1 Uninstalling ID_0403 amp PID_6001 Deleting registry entries Deleting files Uninstall complete press Finish to exit Click Finish 3 2 Disconnect or disable the internet communication if such exists The reason for that is that there are cases where the installation procedure automatically communicates with manufacturer s site which might lead to wrong operation 3 3 Connect the TCIC card to your PC 3 4 The Found New Hardware Wizard appears Select the last option like this Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for current and updated software by looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission Read our privacy policy
37. the main command set and the STATUS LED LED2 will be illuminated De Selecting the board To DE SELECT a TCIC board simply transmit the command with an alternative address For example suppose there are 3 TCIC boards on the RS485 bus with addresses b c amp d To access board b transmit b this will SELECT board b and DE SELECT boards c amp d To access board c transmit c this will SELECT board c and DE SELECT boards b amp d To access board d transmit d this will SELECT board d and DE SELECT boards b amp c 34 TCIC User s Manual 6 USB RS232 amp RS485 In addition to USB The TCIC has an option for both full duplex RS232 and half duplex RS485 interfaces These are brought out on CONNG6 a 9 way D type connector The pin out is as follows CONN6 PIN FUNCTION RS485 RS232 TX out of TCIC RS232 RX into TCIC NC SIGNAL GROUND RS485 NC NC CO NI O 07 B QU N R NC I e for RS232 use pins 2 3 amp 5 and for RS485 use pins 1 5 amp 6 For RS232 connection a standard direct straight through wired 9D M F cable can be used for direct connection to a standard 9 way D type PC COM port RS485 line termination placing a jumper across the two leftmost pins of LK2 puts a 120 Ohm ac coupled impedance across the RS485 data lines This s
38. ur application This is the only case that a card is configured to address a Configuring a Card Address Configuring a card address is carried out by the TCIC Monitor utility e Connect the card to be configured to the USB port e In the TCIC Monitor utility click Setup Card Address and choose the required address Be sure to choose a free and non a address that is an address that no other card is configured to but not a e Exit the TCIC Monitor utility The card is now ready to be wired into an RS485 network When it is powered on it will not be selected until a selection command with the correct address is sent by the application It is the user s responsibility to make sure that each card is configured to a unique non a address 33 TCIC User s Manual Communication Protocol There are 26 allowable addresses referenced by the lower case letters a z The address a is a special address every board will respond to this address In single board RS485 RS232 and USB applications the board will always be given the address a which is also the factory set default Selecting the board To SELECT a TCIC board the command is used followed by the address character A CR character is not required E g sending e will SELECT the board that has the address e Note the TCIC does not send any answer on a command Once selected a TCIC board will respond to
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