87719 Analog Input Module User`s Manual
Contents
1. Vorne Industries 87 719 Analog Input Module User s Manual 1445 Industrial Drive Itasca IL 60143 1849 630 875 3600 Telefax 630 875 3609 Chapter 1 Introduction 250424000 iia area A ae A AA AA f 1 1 Accessing Wiring Connections And Selection Switches 3 1 2 Setting The DIP Switches For Your Application 0 20c eee 3 Run and Program Modes seriere bedrer nie t TENANE rr 3 DIP Switch Settings tuna A a dh E _4 Anal g Mod sr wets re Sea Beit Sea Sek near A Number of Decimal Digits ocococccccccccnccnccoco corn 5 Analog Input Range ee rA KE RERE EA AARAA ARSAN RRENA RTE PUNE ARERIA 5 Smoothing Factor patiesie a A a e an hase E A AAA tiers 5 Display Format 2220 erit an a aaa A A eee 6 1 3 Analog Input Connectors csocorrrpraccri ri ra bosses 6 Analog PUE coo RA A AROE RETRAT 6 Auxillary Input aca A AA A itte 6 Selection JUmpers 6c ce R E APERTA EAEE RERNA EANES A REARS tenes 7 1 4 Wiring Diagrams ads sea SG see eete ae eee 7 Current Input Li E tad elec it dd its _7 Current Input To More Than One Display 0 0 0 c cece eee eee eee eens _8 Voltage Input voii eke ike heed naar ee bei ke nha kad A EE Eaa 8 Unipolar Mode scott eda 8 Bipolar Mode vaner oase TE er ne META SA ET Ge eten eek 8 Guidelines For Wiring Analog Signals 0ccoooccccccccccncconnn rana _9 1 5 Sealing The Display cisco rare Re 9 1 6 Relay Output lt lt lt aa a bekke2. If the Analog input exceeds the top of range the display can be set to display an over range error Up to 8 characters can be used Under Range Indicator If the Analog input drops below the bottom of range the display can be set to display an under range error Up to 8 characters can be used Display Precision The display value can range from 0001 to 99999999 Setting the Display Precision allows a more accurate reading to be displayed Instead of displaying a reading in Volts a reading in tenths or hundredths of Volts can be used Auxiliary Input The operation of the Auxiliary Input can be set to operate as a reset input or as a reset show Peak input When set to reset show peak the display will latch the highest value on the display Activating the Auxiliary input clears the previous peak value Trailing Zeroes Some applications do not require exact precision of the analog value but rather require a stable display For this type of application the trailing digits of the display can be set to latch at zero 87 719 Analog Input Module Users Manual 13 Appendix A Operating Specifications CMR 95 dB DC Noise Rejection CMR 150 dB 50 60 Hz NMR 98 dB 50 60 Hz A D Converter 16 Bit no missing codes Sigma Delta Nonlinearity 0 0015 of FSR Elin max Accuracy 25 C 0 09 MAX Temperature Coefficient 5 ppm C TC error 0 0125 0 50 C Range Sampling Rate Programmable 50 Hz Pol
3. higher voltage inputs the input consists of a voltage divider 20K ohm for 5V 40K ohm for 10V and 400K ohm for 100V input The analog signal is connected to a differential analog input circuit with a programmable gain front end Auxiliary Input The Auxiliary input has an internal 10K pull up resistor to 5 volts Momentarily sinking this input to ground with a contact closure or open collector NPN transistor activates the Auxiliary function The Auxiliary input is TTL or CMOS compatible with a minimum high of 3 5 VDC and a maximum low of 1 5 VDC The Auxiliary input is active on the negative going edge The Auxiliary input can only be used in Peak Hold applications When the Auxiliary Input is activated the peak or valley value is cleared 6 87 719 Analog Input Module Users Manual Selection Jumpers There are two Selection jumpers that must be set Range and Mode These jumpers are located to the left of the Analog Input terminal strip P4 The Range selection jumper specifies the analog input range that will be used Available Range jumper settings are 10 mV 1 V 5 V 10 V 100 V 1 mA and 20 mA The 100 V and 1 mA settings are non standard and can only be used if custom ordered Note Only one range selection can be selected at a time Note Changing the analog input range in the field requires changing the selection jumper and reprogramming the unit for the new analog input range The unit can be programmed serially using
4. that the R must be upper case and must be followed by one character which determines what relay action will occur The available actions are Action ASCII Character Hex Decimal Representation Turn relay on 1 31 hex 49 decimal Turn relay off 0 30 hex 48 decimal Sequence A 41 hex 65 decimal Relay Sequence A is user definable as either a Delay On Relay or Cycle Relay VDP4 is required to change this parameter The Delay On Relay selection allows adjustment of the delay and duration time These settings are adjustable from 1 to 25 5 seconds The Cycle Relay selection allows specifying the ON time 1 to 25 5 seconds OFF time 1 to 25 5 seconds and number of cycles to perform adjustable from 1 to 255 times The following examples assume that addressing and checksums are not being used and that Terminator has been selected as lt CR gt Also note that the header of the packet lt SOH gt s has the effect of broadcasting to all displays overriding any group or individual address a display might be set to Turn the relay on lt SOH gt s R1 lt CR gt Turn the relay off lt SOH gt s RO lt CR gt Trigger Sequence A lt SOH gt s RA lt CR gt 10 87 719 Analog Input Module Users Manual Chapter 2 Advanced Features Of The 87 719 The 87 719 has been designed in such a way that it can be customized to meet a users specific requirements The unit is shipped from the factory set to the customers specifications Top and bottom of
5. S 9 Relay CONNECtO eiii a iaa 9 Presets hee Saving ees ea Pe ee an Se hae a R oE niai 10 Activate Relay 20m wade ae Betre abre dene uses a Rented 10 Chapter 2 Advanced Features Of The 87 719 cceeee eee eee e ee eeeee 1 2 1 VDP4 OpUons see 11 Analog Input Type 220 icacemecuedie hae edt iedutdecdadadeanmmuandatedens na 11 Analog Input Range miestne ei at eee tees atl Pade ei ed 11 Display Response 0 0 cece eee eee eee eee ET enee 11 TOP SIGE Setngs ufred aioe 11 Bottom Side Settings 0 c ccc ccc een e nee n eee e ene e nen eenneaneeas 11 Preset Modders trade Uae ene ea oe eee ea 11 87 719 Analog Input Module Users Manual Relay Seulps ctevves ative ono vaamen o ra heh ane eee 12 Display Lead In Character 0 cc cece cece een eee eee e tenet eee tenes 13 Display Traller Gh racter aparte es arenaene Oh ANEETA Meme ge bien sa SAT de 13 Over Range Indicator user Maar adas 13 Under Range Indicator ncceccccs0e cd a ieri enk eater braaa e Enae E aE 13 Display Precision ota E 13 Auxiliary Inputs i esan notae r nial evi oti Da O A ia et 13 Trailing Z6r068 vi coria ir id eel 13 Appendix A Operating Specifications 0 cece eee eee eee eee s Notice Of Disclaimer While the information in this manual has been carefully reviewed for accuracy Vorne Industries Inc assumes no liability for any errors or omissions in the information Vorne Industries also reserves the right to make ch
6. anges without further notice to any products described in this manual 2 87 719 Analog Input Module Users Manual Chapter 1 Introduction The 87 719 Analog Module is a plug in module for an 87 232 Series Display The Analog Module incorporates a 16 bit Sigma Delta Charge Balancing Analog to Digital converter The unit features Auto zero a internal precision voltage reference which allows Auto calibration and precision resistors with low 5 ppm temperature coefficient for excellent temperature stability The unit accepts an analog input converts it to digital information scales it in accordance with the top and bottom of range and displays the scaled value The top and bottom of range can be set serially from a computer using VDP4 VDP4 is a Windows based utility that allows customization of the 87 Series Display VDP4 is available from Vorne at no charge 1 1 Accessing Wiring Connections And Selection Switches All external power and communication line connections to the display are made to printed circuit board mounted terminal strips These terminal strips as well as a 10 position DIP switch and COM PORT selection switch can be accessed by removing the back panel user access plate WARNING SHOCK HAZARD Always completely disconnect power from the display before opening the user access plate Do not reapply power to the display until the access plate has been reinstalled and securely closed There are two 7 8 conduit
7. arity Indication Used to display a negative value Over Range Indication Under Range Indication Programmable Default Latch Top of Range Programmable Default Latch Bottom of Range Input Range Maximum Input Resolution Number of steps Input Impedance 0 1maA 1 02 mA 78 ohm 0 03 uA 32 768 0 20mA 20 5 mA 3 9ohm 0 61 pA 32 768 0 10 mV 20 mV 10K ohm 2 44 uV 4 096 0 1V 2 5 V 10K ohm 38 uV 24 576 0 5V 5V 20K ohm 76 uV 65 535 0 10 V 10 V 40K ohm 0 152 mV 65 535 0 100 V 100 V 400K ohm 1 525 mV 65 535 14 87 719 Analog Input Module Users Manual
8. be executed when the Preset Value has been reached in sequential order controlled by the Preset Mode as follows 1 None No presets used 2 One Preset Up Mode Direction Up PresetOn event will be triggered when Preset Value is reached Direction Down Preset Off event will be triggered when Preset Value is reached 3 One Preset Down Mode Direction Up Preset Off event will be triggered when Preset Value is reached Direction Down PresetOn event will be triggered when Preset Value is reached 4 Two Presets Cascade Up Mode Direction Up LowPresetOn event will be triggered when Low Preset Value is reached and then HighPresetOn event will be triggered when High Preset Value is reached Direction Down HighPresetOff event will be triggered when High Preset Value is reached and then LowPresetOff event will be triggered when Low Preset Value is reached 5 Two Presets Cascade Down Mode Direction Up LowPresetOff event will be triggered when Low Preset Value is reached and then HighPresetOff event will be triggered when High Preset Value is reached Direction Down HighPresetOn event will be triggered when High Preset Value is reached and then LowPresetOn event will be triggered when Low Preset Value is reached 6 Two Presets Band Gap Mode Direction Up LowPresetOn event will be triggered when Low Preset Value is reached and then HighPresetOff event will be triggered when High Preset Value is reached Direction Down HighPrese
9. l The top of range corresponds to the highest valid analog signal The display value will range linearly between the bottom and top of range The top and bottom of range can be programmed into the 87 Series display using VDP4 When the unit is shipped from the factory the top and bottom of range are set to the customers specifications Analog inputs that fall below the bottom of range or above the top of range will display the bottom or top of range respectively 1 6 Relay Output WARNING Use the relay for annunciator applications only Do not use it for control Relay Connectors A SPDT Relay is available through the three pins of the relay port terminal strip marked P5 The relay terminal strip is shown below The relay is a single pole double throw SPDT rated 120VAC 1A Normally Closed NC AREA Common Normally Open NO A B C 87 719 Analog Input Module Users Manual 9 Presets An 87 series display can be programmed to activate the relay when a trigger point is reached Preset One or Preset Two The 87 Series Display is shipped from the factory with the Preset function disabled VDP4 can be used to configure the Preset function Once the Preset function is enabled the Presets can be changed using VDP4 or the 87 Terminal Activate Relay The relay can also be activated serially by using the Relay command The Relay command string begins with the ASCII character R 52 hex 82 decimal Note
10. nit displays the analog reading in the format X XXX This setting only applies to Diagnostic mode 7 5 Number of Decimal Digits orrfor 0 Analog Input Range The Input Range setting must be set to match the range of the analog input signal This setting only applies to Diagnostic mode JT Analog input Range Smoothing Factor The smoothing factor averages the analog input signal over several samples Turning the smoothing Factor on results in a more stable display This setting only applies to Diagnostic mode 9 Smoothing Factor 87 719 Analog Input Module Users Manual 5 Display Format The analog to digital converter represents the analog input as a number between 0 and 65535 Selecting Raw mode displays this representation of the analog input Cooked mode scales the Raw mode numbers to the Analog Input Range selection This setting only applies to Diagnostic mode Display Format 1 3 Analog Input Connectors Analog Inputs can be wired to the 87 719 through the four pins of the Analog port terminal strip marked P4 The Analog Input terminal strip is shown below Pins 1 to 4 Analog Input Analog IN 7 Z 2 Z Analog IN GROUND AUX Input 1 2 3 4 Analog Input The analog input consists of a resistor across the In and In terminals for current inputs and low voltage inputs 78 ohm for 0 1 mA 3 9 ohm for 4 20 mA 10K ohm for 10mV and 1V For
11. og signal will range from 0 to a positive voltage or current 0 1mA 0 20mA 0 10mV 0 1V 0 5V 0 10V or 0 100V Bipolar Mode Bipolar measurements are measurements where the analog signal will range from a negative to a positive voltage 10 to 10mV 1 to 1V 5 to 5V 10 to 10V or 100 to 100V Bipolar ranges are with respect to IN The unit is shipped from the factory set for Unipolar mode Applications requiring Bipolar operation should be custom oredered from the factory For optimal results R11 should be changed to a 4 7K ohm resistor 8 87 719 Analog Input Module Users Manual Guidelines For Wiring Analog Signals For best results when wiring analog signals please follow these guidelines 1 Keep cable length to a minimum 2 Use a shielded twisted pair cable with the shield connected to GND pin 3 only at the 87 719 display floating at the voltage or current source Belden 9501 is a recommended cable 3 Carefully check your equipment and cable to ensure that Shield Ground is not connected at both ends of the cable If there is a significant difference in Earth Ground potential between the two ends of the cable it could cause reading errors or even damage to the analog circuitry 4 Do not run the analog cable parallel to any power cables 1 5 Scaling The Display The analog input can be scaled to display a user defined span The Bottom of range corresponds to the lowest valid analog input signa
12. openings on the back panel of the display provided for bringing external wiring into the display enclosure If these conduit openings will not be used for wiring these openings can be filled with plastic plugs Caplugs Part Number BP 7 8 which are provided with the display The left most conduit opening is provided for power wiring the right most for signal wiring It is not recommended to run power wiring and signal wiring in the same conduit 1 2 Setting The DIP Switches For Your Application Note Changes to the DIP switches are only acknowledged at power up Factory default settings are shown in gray Note Installing the 87 719 module overrides the DIP switch settings of the 87 232 Logic board Run and Program Modes 87 719 Analog Input Module Users Manual 3 For normal operation the Run Program switch should be set to Run off Setting the unit to Program mode allows the unit to be customized using VDP4 and to run one of two diagnostic routines If DIP switch 2 is off the display cycles thru the following display diagnostic a Error status Should show EO El or E2 indicates a memory error b Unit Address Default value is 00 c Red segment test The unit will turn on I segment at a time A thru G and DP d Green segment test For a single color display a blank screen will be displayed e All segments ON f Unit type 3 87 719 g This is a separator between the Unit type and the Software version h Software
13. range Input Mode and Input Range are set as specified In addition the unit is set to right justified data leading zeroes blanked and no fixed decimal point Custom applications can be accommodated by using VDP4 to customize the operation of the 87 719 display VDP4 is a Windows based utility that is available from Vorne VDP4 settings are stored in a EEPROM on the displays logic board For additional information on topics discussed in this chapter request the Advanced Applications Guide 2 1 VDP4 Options The following is a list of 87 719 specific options that can be programmed using VDP4 Analog Input Type Available selections are Unipolar and Bipolar Analog Input Range Available selections are 1mA 20mA 10mV 1V 5V 10V 100V Display Response Available selections are O to 128 A setting of O corresponds to a immediate response a setting of 128 selects a update time of approximately 2 seconds Top Side Settings Top side settings include the top of range scale value and the desired top of range analog input value Bottom Side Settings Bottom side settings include the bottom of range scale value and the desired bottom of range analog input value Preset Mode Six Preset Modes are available None One Preset Up One Preset Down Two Presets Cascade Up Two Presets Cascade Down and Two Presets Band Gap 87 719 Analog Input Module Users Manual 11 There are two events PresetOn and PresetOff that can
14. tOn event will be triggered when High Preset Value is reached and then LowPresetOff event will be triggered when Low Preset Value is reached When a Preset event is reached the following features can be set 1 Relay can be turned off perform Relay Sequence A or perform Relay Sequence B 2 The display can be made to stop at the preset 3 The display can be made to not flash flash slow flash fast or turn off 4 For Bi Color Displays the display color can be set to Red Yellow or Green Relay Setup Four Relay actions are available Latch Relay On Latch Relay Off Delay Relay Activation and Cycle Relay Relay Sequence A and Relay Sequence B are user definable as either a Delay On Relay or Cycle Relay The Delay On Relay selection allows adjustment of the delay and duration time These settings are adjustable from 1 to 25 5 seconds The Cycle Relay selection allows specifying the ON time 1 to 25 5 seconds OFF time 1 to 25 5 seconds and number of cycles to perform adjustable from 1 to 255 times 12 87 719 Analog Input Module Users Manual Display Lead In Character Up to 3 characters can be displayed to the left of the normal display value The Lead In character can be used to describe the displayed number Display Trailer Character Up to 3 characters can be displayed to the right of the normal display value The Trailer character can be used to describe the displayed number such as A or V Over Range Indicator
15. the RS 232 port of the 87 Series display VDP4 is a Windows based utility that allows customization of the 87 Series Display VDP4 is available from Vorne at no charge The Mode selection jumper specifies whether a voltage or current will be measured For voltage measurements the Mode jumper should be set to V For current measurements 0 1 mA and 4 20 mA the Mode jumper should be set to I ANALOG L RELAY P5 PTION BOARD 5 COM 1 4 Wiring Diagrams This section provides the information necessary to successfully interface an analog signal to the 87 719 module Current Input P4 OUT GF IN 1 E G OUT ER H IN 2 g lt l Shield Ground 3 al Current Source 87 SERIES DISPLAY 87 719 Analog Input Module Users Manual 7 Current Input To More Than One Display Additional 87 719 units can be added onto a 4 20 mA signal by wiring the devices in series with the current source P4 OUT I IN 1 tas ide 345 Shield 4 Ground 3 Current Source 1ST 87 SERIES DISPLAY P4 L IN 1 Sm Fe IWS Ground 3 2ND 87 SERIES DISPLAY Voltage Input Unipolar Mode P4 OUT N 1 Shield Ground 3 Voltage Source 87 SERIES DISPLAY Unipolar measurements are measurements where the anal
16. version This number is displayed on two consecutive screens Ex 1 2 5 If DIP switch 2 is on the display runs a DIP switch diagnostic This diagnostic displays the HEX value of DIP switches 3 thru 10 switches 3 to 6 MSD switches 7 to 10 LSD If switches 3 thru 10 are all set to the ON position the display turns on all LEDs DIP Switch Settings For normal operation the Settings DIP switch should be set to VDP4 off This allows the unit to scale the display according to the user definable top and bottom of range If the settings DIP switch is off switches 3 thru 10 are ignored The Diagnostic mode is for troubleshooting use Diagnostic mode allows the unit to respond to the analog input the way a volt or current meter would The settings of DIP switches 3 thru 10 define how the analog input value is displayed In program mode Switch 2 selects between Display test off and DIP switch test on Settings Analog Input Diagnostic Analog Mode The Analog Mode setting defines if the analog input signal is Unipolar or Bipolar Unipolar is used for positive measurements Bipolar mode is used for measuring positive and negative signals This setting only applies to Diagnostic mode Analog Mode OFF 4 87 719 Analog Input Module Users Manual Number of Decimal Digits This setting determines the number of decimal digits that will be displayed For a setting of O the display powers up to 0 For a setting of 3 the u
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