Sensory Science 7405 User's Manual
Contents
1. 96101686 418 QTOH TT 900 35 z80reOWN UN TIN m yO E s Er you lv L vro Ia V YY SER SHA Pan vv BIA Y 5 ev LONNPHA ed 9 0 E Fan wf 298 0A bey ov ABA Indino INgwand TIVISNI2. Channel connections should be made as illustrated in the following diagram regardless of the selected channel output mode pin load pin gnd Calibration Although the 7405 analog section is factory calibrated at Sensoray you may find that a periodic calibration is in order to compensate for circuit drift over time The board contains nine trimpots in all one offset trim for each channel and one gain trim that is common to all channels The general strategy for board calibration is to first adjust the gain trimpot followed by the individual channel offset adjustments It is important that the final offset adjustments be performed after configuring the channels for their target operating modes Procedure 1 Configure analog channel 0 for voltage output mode by removing programming shunts at AO BO and DO 2 Connect a precision voltmeter to the channel 0 voltage outputs Connect the positive lead to P1 pin 2 and the negative lead to P1 pin 4 3 Set analog channel 0 output to 0 volts by programming the channel data value to 800 hex 4 Adjust the channel 0 offset trimpot until the voltmeter reads 0 volts 5 Set analog channel 0 output to 10 volts by programming the channel data value to 000 hex 6 Adjust the gain trimpot until the voltmeter reads 10 volts 7 Configure the output modes of all eight channels as required by your application 8 For each voltage channel connect the meter to
3. T O Space Two separate I O spaces exist on the STDbus primary and expanded Option jumper E8 selects which I O space the Model 7405 board will reside in E8 is factory set to map the board into primary space T O Address Space I Primary R Expanded T O Port Mapping The Model 7405 occupies two consecutive 8 bit addresses in the selected STDbus I O address space These ports may be mapped to any even address from 0x00 to OxFE Jumpers are factory installed to locate the board at ports 0xB2 and OxB3 The following tables show the jumper configurations for all possible board addresses Use the table on the left for the most significant address nibble and the table on the right for the least significant address nibble E6 E5 4 Val E3 E2 Val 1 2 2 4 RI 3 RY 6 1 5 R 1I RIA I rR JR 1 6 I R R R 7 R R R R r 1 RI9 R R I R D R R R IT E R R R RIF Channel Mode Each channel has three mode control option jumpers used to select either voltage or current output mode A channel s mode control jumpers work as a set For any given channel either all jumpers should be installed o
4. 0 ao a OHO TNE y n 20 9 wx emer r ZAZ fb ay g0 z Iwz IAZ YM OVX ZT zaa Z OL oy g pv zen OT on WED Bl say omy suav y 5 y Zvi ZAL r Ze Ep adooee 199 See ay Em AL 28 Tay sT ZT oy Lx azo A vay sen oy zav i 4 LW ru OO 3 JHM Nat 18V ov jio ou LE ASNET 6 HHS 60 6l za 50 al E E sa JAVIM a ZEMSAS saa OT za 50 sag L INOUVN 50 ai Le rada YT ga MERE ead 0 1s zaa 6 31VISM O SE 0s Tad ASN 2 ab oad T OO gaan g a 0 so Sav an9a an9a vav 0 Le a ast H Ast aN anyo zo Ast 708329 EN ER aE i 05 5 19V zo 5 EVES S LVISM nzi dd ro oO 43 WO 960 910 SED SID YED 660 E19 2d at 93 wo anvo va Et t ae OOOHPL t xarstoma avon fe ISHS d 1 a ed HE 8 ILWIS wo vsen 4 0 Zd 23 x 5 1 3 gt z Id be 13 dNa as ry nme H e e J Jj j jf aqoa FF 53 098 T 90 zo 80 220 960 So 9
5. number Data Format The analog channel data format is a function of the selected output mode Voltage mode employs a format different from that of current mode This table illustrates the relationship between channel data value and signal output Data Value Voltage Mode Current Mode Hexadecimal Output V Output mA 000 10 000 4 0000 001 9995 1 4 0039 002 9 9902 4 0078 0 0049 11 996 800 0 0000 12 000 801 0 0049 12 004 FFE 9 9902 19 996 FFF 9 9951 20 000 Connections All output loads are connected to the Model 7405 through 40 pin flat cable connector P1 Optionally loads may be connected to the Model 7405TB screw termination board which in turn connects to P1 by means of flat ribbon cable Each channel has four dedicated pins on connector P1 Two of the pins are used only in the voltage output mode and the other two only in current output mode In addition ground is supplied on connector P1 pin 38 for use as a cable shield A channel circuit may be wired in one of two ways depending on the selected output mode voltage versus current The following table specifies the proper connector P1 pins to be used Sensoray Model 7405 Instruction Manual Page 4 Voltage Current Chan Mode Pin Mode Pin 0 2 1 3 1 6 8 5 7 2 10 12 9 11 3 14 16 13 15 4 18 20 17 19 5 22 24 21 23 6 26 28 25 27 7 30 32 29 31
6. same I O port address This is possible because the status register is read only while the A register is write only Status Register The status register provides the host with a means for monitoring Model 7405 handshake status When the host reads from the status port a byte with the following form is returned D7 D6 D5 D4 p3 D2 DI DO BUSY BUSY X X X X X X A y Not Used Channel can be written to when these are both zero The status register contains two BUSY bits that are used to handshake data onto the Model 7405 board When both bits are reset to logic 0 the board is ready to accept new data The remaining six bits are not used and should be ignored Prior to writing new data to the board the host must read and test the two BUSY bits The host should write data to the board only when both BUSY bits contain logic 0 Although this handshake rule is simple failure to observe it will most likely result in communication errors Data Registers Analog channel data may be written into the A and B registers after ensuring that the status register handshake bits are both reset to logic 0 B Register A Register D7 D6 D5 D4 D3 D2 DO D7 D6 D5 D4 D3 D2 D1 DO 0 N A DA Channel Analog Output Data First the low data byte is written into the A register Then the B register is loaded with the high data nibble and channel
7. 0 50 IAS 5B ASH in ko bokib bale fo g0 8 eee e e a a a a y y e arr o OOOHPL K zt x dIS X0 aszn gt z act E 4 _4 __4 4 4 4 1 4 1 1 4 OL 90 8 899 099 9S0 ISO 0S9 650 SSO ZSO S9 850 190 4 ASN 7 5 3 7 z zZ Jo zZ aug Z661 Menuer Aepson 8 52900050 a svezav nay JEquinn juswinsoq 679 9 0 006 anda TANNVHO 8 ALS 50 anov uM amy AF000 L 80 AF 00 L ET Lola 88 so a 4 00 ANVdINOD AVHOSNSS anoo a fa ne 0 a 6 P Z yr 431 se 26 1099Sd N 1099Sd N aaa ge 56 80 nzi Ee SSA za ve E foe Z80vE9N 900189 90189 9 iots e sa ee Ag 95 oz a NIV ZR ZHd gz 26 4n10 0 410 0 ve Sd 5603888 98 9603688 OZH 9z 92 zeo 434 58 za a x zo i nr p 9 561 09 t si vid arm s94 960961 96 0 vA Hd 96130301 t Tid ole EA Hd 99 ZA ZHd if H
8. 0 to 15VDC 80mA max 5 0VDC 100mA max Input power excluding output drive Operating temperature 25 C to 85 C D A resolution 12 bits Channel update rate 20KHz min single channel rate Output linearity error 0 03 max Analog output modes Voltage out 10V Current out 4 to 20 mA Sensoray Model 7405 Instruction Manual Page 2 Hardware Configuration The Model 7405 requires the installation of programming shunts to select various options such as I O port addresses and channel operating modes This section describes these configuration options After configuring the option shunts the Model 7405 may be installed in your STDbus backplane and programmed as explained in the Programming section of this manual Both board address and channel output types are established by installing programming shunts at various locations on the board In all of the following discussions of shunt programming I denotes an installed programming shunt and R indicates that no shunt is installed Symbol Meaning I Shunt installed R Shunt removed Defaults All option jumpers are set to a standard default configuration at the factory If the default configuration is consistent with your application you may be able to use the board without having to reconfigure any jumpers Attribute Default T O base address OxB2 T O Space Primary Analog channel mode Voltage out
9. 8 52900050 g Ast nou Jequinn juewnooq azig u b am W94 Lz TANNVHO 8 ALS 50 Ov 9 3 We ED 90 9a LW ALE ken ai ma ST v6 g so sa e zzvi zar Le ory 5290005 GALVHOdHOONI ANVdWOD AVHOSNAS 61 0 Be Me TT _ 5 me i sa 20 za 8a H zo za Le rH IAZ Le za za 49 LY L 3 9 Ly gt anov gy pasa ae sa or ag sat 9 er sad Irola sn H ove PAZ id sa tl ww za 0 ea zaq 2 ZO za 7 Ag ar rq 9 za za zv E EN 10 Le i ane 104110 ZI sa ii a e to y IY dae 2 98 oga ANSY Al SIE INTAUNI 81 9a oen oa 8 ten lod Neb Ei SL 5 0337 ood er gt nod rT 49079 levy za 90 b 1353884 ito Ib 135349 5 3 ____ o fF WN zo zal 5 OEN ST 95 sa 8 8 OULIVM 415101 v PE aN wx sa At oad OHLNI Z 133HS Ww vX ST 55 va et saq WLNI A za Ox S 0 eq by red ousng SL a Le aN za a zag AS tL 7 5 i ag rL 419 by 42 00 oa EEA avol ZL TL P A 3 9 B9EOHbL Hea 1a Le IN 1 3 XININ 5 M oa PE EIN ana 2 ins aao gaey ot 5 OL O98 AVISO 29000
10. INSTRUCTION MANUAL Sensoray Model 7405 STDbus Analog Output Card 01 10 2000 a SENnISORAY Sensoray Co Inc 7313 SW Tech Center Dr Tigard Oregon 97223 voice 503 684 8005 fax 503 684 8164 e mail sales sensoray com www sensoray com M A N 2 6 U A L 4 Limited Warranty Sensoray Company Incorporated Sensoray warrants the model 7405 hardware to be free from defects in material and workmanship and perform to applicable published Sensoray specifications for two years from the date of shipment to purchaser Sensoray will at its option repair or replace equipment that proves to be defective during the warranty period This warranty includes parts and labor The warranty provided herein does not cover equipment subjected to abuse misuse accident alteration neglect or unauthorized repair or installation Sensoray shall have the right of final determination as to the existence and cause of defect As for items repaired or replaced under warranty the warranty shall continue in effect for the remainder of the original warranty period or for ninety days following date of shipment by Sensoray of the repaired or replaced part whichever period is longer A Return Material Authorization RMA number must be obtained from the factory and clearly marked on the outside of the package before any equipment will be accepted for warranty work Sensoray will pay the shipping costs of return
11. d ka TA IHd Neb hg anod Old On Hd YHN eorpnz angy 60 9610006 988 4 9610006 ey A Yl O O0Z vey A aN E Mt 96 b 0 HOO L 56 9613001 668 28 86 an HH 50 310 0 anoo 6 9 88 109084 109984 109084 96130301 10 0 90 82 00 9603189 00 9610189 00 9610189 ery sy bed ezu SH A A 3334 gee anoo ariaa anoo anoo OA 169 903688 198 119 560688 61 069 5603688 098 M A a yee 084 96 0981 96 0981 900 9 81 Rai atin Lra 518 9 80 dNS a X x F F AQWLIOA Ix 8 8 80 8 901 0 001 x v i 8 ale 0A Y SY OHO x 9 a HA ggg H Lx 3 bg lt _ Sav 960006 900006 EEH A aan Lor 3 33 aNd Zaa 061 0 A00 L 6 0 A00 L 061 0 A00 L __ 9 Ano 69 bo99SdW z0 oor 9603189 old zzy anoo PPAP 019 0036889 818 Ak 190 39 61 vid 8 Zed 3 00 169 F 00 469 0 SO 00 96103189 bey ESH anoo Kensie 629 03688 6 zt l 0 M9 6 IL 8 F 00 6 LO9ISAN Lo T SY 3 100 419 36089 ig 69 ety Ak 1903961
12. ing to the owner parts which are covered by warranty Sensoray believes that the information in this manual is accurate The document has been carefully reviewed for technical accuracy In the event that technical or typographical errors exist Sensoray reserves the right to make changes to subsequent editions of this document without prior notice to holders of this edition The reader should consult Sensoray if errors are suspected In no event shall Sensoray be liable for any damages arising out of or related to this document or the information contained in it EXCEPT AS SPECIFIED HEREIN SENSORAY MAKES NO WARRANTIES EXPRESS OR IMPLIED AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE CUSTOMER S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF SENSORAY SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER SENSORAY WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA PROFITS USE OF PRODUCTS OR INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF ADVISED OF THE POSSIBILITY THEREOF Special Handling Instructions The Model 7405 board contains CMOS circuitry that is sensitive to Electrostatic Discharge ESD Special care should be taken in handling transporting and installing the 7405 to prevent ESD damage to the board In particular 1 Do not remove the 7405 from its protective antistatic bag until you are ready to install it in your computer 2 Hand
13. le the 7405 only at grounded ESD protected stations 3 Always turn off the computer before installing or removing the 7405 board All brand product and company names are trademarks or registered trademarks of their respective owners Introduction The Model 7405 board interfaces eight analog output channels directly to the STDbus Each channel may be independently configured for either voltage or current output The voltage or current output from each channel is a linear function of that channel s applied digital value When programmed for voltage output a channel will generate a voltage between 10 and 10 volts Careful attention to circuit design on the Model 7405 makes this voltage range possible even when powering the STDbus from 12 volt power supplies Upon board reset all channels are automatically initialized to their appropriate zero output conditions Voltage mode channels default to zero volts out and current mode channels reset to four milliamps out A 40 pin flat cable connector is provided for making connections to the analog output channels The connector may be wired to an optional Sensoray Model 7409TB or 7409TC screw termination board or to a termination system customized for the target application Two STDbus I O addresses are occupied by the Model 7405 These two consecutive addresses may be mapped anywhere in the STDbus eight bit I O address space Specifications Specification Value 12
14. lts lt 10 0 10 0 volts Convert voltage value to binary value suitable for DAC short value short 2048 voltage 204 8 Wait until Model 7405 board is ready to accept data do while InByte baseport amp BUSY Write binary value to Model 7405 board OutByte baseport value amp OxFF OutByte baseport 1 channel lt lt 4 amp 0x70 value gt gt 8 amp OxOF Sensoray Model 7405 Instruction Manual Page 6 a 5 5 7 7 T z aug 9661 91 Jaquissaq oed
15. r should be removed A jumper set should be installed to configure the associated channel for current output Conversely the jumper set should be removed to configure the channel for voltage output Channel Jumper Set 0 AO BO DO 1 Al Bl D1 2 A2 B2 D2 3 A3 B3 D3 4 A4 B4 D4 5 A5 B5 D5 6 A6 B6 D6 7 A7 B7 D7 For example jumpers A3 B3 and D3 must all be installed to configure channel 3 for the 4 20mA current output mode Jumpers A7 B7 and D7 must all be removed to configure channel 7 for the 10 volt output mode Programming Programming of the Model 7405 is accomplished by means of three STDbus interface registers One register is used to let the host processor know when new data may be sent to the board The other two registers receive a combination of channel number and analog channel data from the host Sensoray Model 7405 Instruction Manual Page 3 Programming Model The Model 7405 board occupies two contiguous I O ports in the STDbus I O space Both ports may be written to and the base port has a read function as well 1 Function Address Read Write Base Address 0 Status Register A Register Base Address 1 not used B Register Analog output data and channel number is written to the A and B registers while the status register is used by the host processor for handshake control Note that the status register and A register share the
16. the channel voltage output pins on connector P1 Set the output to 0 volts by programming the channel data value to 800 hex Adjust the channel offset trimpot until the meter displays 0 volts 9 For each current channel connect a precision milliammeter across the channel s current output pins on connector P1 Set the output to 4 mA by programming the channel data value to 000 hex Adjust the channel offset trimpot until the meter displays 4 mA Board Layout D76543210 E81234567 Sensoray Model 7405 Instruction Manual Page 5 Sample Drivers These sample driver functions written in C C assume that all channels are configured for the voltage output mode With minor modification these drivers can be made to work with channels that are set up for current output mode operation define BUSY 0xC0 Handshake status bit mask typedef unsigned char UCHAR UCHAR InByte UCHAR address INSERT CODE HERE THAT WILL RETURN A VALUE FROM AN 8 BIT I O PORT void OutByte UCHAR address UCHAR value INSERT CODE HERE THAT WILL WRITE A VALUE TO AN 8 BIT I O PORT void WriteVoltage UCHAR baseport UCHAR channel double volts Limit voltage to legal values double voltage volts gt 9 995 9 995 vo
Download Pdf Manuals
Related Search