Instruction/ maintenance manual of the product PCI-DIO96 Omega Engineering
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PCI-DIO96 DIGITAL INPUT/OUTPUT User’s Manual Revision 2 November, 2000.
TABLE OF CONTENTS 22 7.3 VOLTAGE DIVIDERS ..................................... 21 7.2 TTL TO SOLID STATE RELAYS .......................... 20 7.1 PULL UP & PULL DOWN RESISTORS ................... 20 7 ELECTRONICS AND INTERFACING .................
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1 INTRODUCTION The PCI-DIO96 is a 96-bit lin e digital I/O board. The board provides the 96 bits in four 24- bit groups. Each group provi des an 8-bi t port A and port B, as w ell as an 8-bit p or t C that can b e sp lit into ind epe ndent 4-b it po rt C-HI and a 4 -bit po rt C-LO.
2 INSTALLATION The PCI-DIO96 boards are completely plug-an d-play . There are no switches or jum p ers on the board. All board addresses are set by your com puter’s plu g-and-play software. Insta Cal is the installation, calibration and test softw are supp lied with y o ur data acquisition / IO hardware.
3.2 CONNECTOR DIAGRAM The PCI-DIO96 I/O conn ector is a 100-pin ty pe connector access ible from the rear of the PC at the expansion backplate See Figure 3-1 below for the board pin out.
Figure 3-2. Cable C100FF-xx Configuration 4 SIGNAL CONDI TIONING OR 50-PI N SCREW TERMINAL BOARD SIGNAL COND ITIONI NG o r 50 -PIN SCREW TERMIN AL BOARD .
Figure 3-3. Pin Translation - Pins 51 to 100 DI/O Signals 5 1 Port A7 D Port A6 D 2 3 Port A5 D Port A4 D 4 5 Port A3 D Port A2 D 6 7 Port A1 D Port A0 D 8 9 Port B7 D Port B6 D 10 1 1 Port B5 D Port .
3.3 SIGNAL CONNECTION CONSIDERATIONS All t he digi tal input s on th e PCI-DIO96 are 8255 CMOS TTL. The PCI-DIO96 output signals are 8255 CMOS. OMEGA Engineering Inc.
3.4 CIO-ERB24 & SSR-RACK24 CONNECTIONS PCI-DIO96 boards provide digital I/O in two m ajor groups of 48 bits each (96 total, but each si de of th e C100FF-x x cable provides 48 bits). How ever, man y popular relay and SSR boards prov ide only 24-bit s of I/O.
4 SOFTWARE We highly recomm end that users take adv antage of ou r Univ ersal Library package's easy- to-use program min g interfaces. However, if y ou are an ex perienced program mer, and w ish to read an d w rite directly to the board, w e have provi ded a detailed register map in the next chapter.
5 REGISTER MAPS The PCI Controll er, a PLX-9052, h as four con fig uration, con trol, and statu s registers (Table 5-1). They are described in the following section. Table 5-1. I/O Region Register Operations 8-bit byte Digital I/O registers BADR3 N/A N/A BADR2 32-bit double word PCI I/O-mapped config.
INTE Interrupt enable (local): 0 = disabled, 1 = enabled (default) INTPOL Interrupt polarity: 0 = active low (default), 1 = active high INT Interrupt status: 0 = interrupt not active, 1 = interrupt ac.
5.4 BADR3 BADR3 is an 8-bit data bus for reading, writing and control of the individual 82C55 chips and the 82C54. Refer to Table 5-2 for register offsets.
GROUP 0, PORT B DATA BADR3 + 1 READ/WRITE D0 D1 D2 D3 D4 D5 D6 D7 0 1 2 3 4 5 6 7 GROUP 0, PORT C DATA BADR3 + 2 READ/WRITE CL1 CL2 CL3 CL4 CH1 CH2 CH3 CH4 C1 C2 C3 C4 C5 C6 C7 C8 0 1 2 3 4 5 6 7 GROU.
Table 5-3. DIO Port Configurations/Per Group IN IN IN IN 155 9B 1 1 1 1 OUT IN IN IN 154 9A 0 1 1 1 IN IN OUT IN 153 99 1 0 1 1 OUT IN OUT IN 152 98 0 0 1 1 IN OUT IN IN 147 93 1 1 0 1 OUT OUT IN IN 1.
GROUP 1 CONFIGURE BADR3 + 7 READ/WRITE CL B M1 CH A M2 M3 MS 0 1 2 3 4 5 6 7 5.4.3 Group 2 8255 Configuration & Data GROUP 2, PORT A DATA BADR3 + 8 READ/WRITE D0 D1 D2 D3 D4 D5 D6 D7 0 1 2 3 4 5 6.
GROUP 3, PORT B DATA BADR3 + D hex READ/WRITE D0 D1 D2 D3 D4 D5 D6 D7 0 1 2 3 4 5 6 7 GROUP 3, PORT C DATA BADR3 + E hex READ/WRITE CL1 CL2 CL3 CL4 CH1 CH2 CH3 CH4 C1 C2 C3 C4 C5 C6 C7 C8 0 1 2 3 4 5 6 7 GROUP 3 CONFIGURE BADR3 + F hex READ/WRITE CL B M1 CH A M2 M3 MS 0 1 2 3 4 5 6 7 5.
COUNTER CONFIGURATION BADR3 + 13 hex READ/WRITE D0 D1 D2 D3 D4 D5 D6 D7 0 1 2 3 4 5 6 7 This register is used to set the operating modes of each of the 82C54’s counters. Configure the counters by writing mode information to the Configure register, followed by the count information written to the specific counter (data) registers.
5.4.7 Counter Interrupt Source Configure BADR3 + 15 hex READ/WRITE CTR1 CTRIR INTEN X X X X X 0 1 2 3 4 5 6 7 INTEN Enables or disabled interrupts. 1 = enabled, 0 = disabled CTRIR Enables or disables the counters as an interrupt source. 1 = counters may generate interrupts.
6 SPECIFICATIONS Power Consumption 150 mA max +5V Digital Input / Output User installed. Dual footprint allows pull-up or pull-down configuration Pull-Up/Pull-Down Resistors Input mode (high impedance) Power-up / reset state 0.8 volts max, − 0.5 volts absolute min Input Low 2.
Interrupts The interrupt control registers function with the four 82C55 devices and the 82C54 counter timer to provide interrupt sources. 1. 82C55 in Mode 1 or Mode 2 Interrupt configuration: • Firs.
7 ELECTRONICS AND INTERFACING This brief introduction to the electronics most often needed by digital I/O board users covers a few key concepts. IMPORTANT NOTE WHENEVER AN 82C55 IS POWERED-ON OR RESET , A LL PINS ARE SET TO HIGH-IMPEDANCE INPUT .
If the bo ard is in output mod e, the board has enough po w er to overri de the pull-up/down resistor's high signal and drive the line to 0 volts. If the output circuit asserts a high signal, the pull-up resistor guaranties that the line goes to +5 V.
The most conv enient w ay to u se solid state relays and a PCI-DIO96 board is to use a Solid State Relay Rack. An SSR Rack is a circuit board with input buff er amplifiers that are powerful enough to switch the SSRs. T he buffer am plifier s and SSRs are socketed.
For a given attenuation, pick a hand y resistor and call it R2, then u se this formula to calculate R1. R1=(A-1)*R2 with a f ull scale range of 0 to 5 volts, the Attenuation is 2:1, or just 2.
For Your Notes 24.
For Your Notes 25.
For Your Notes 26.
EC Declaration of Conformity Description Part Number Digital I/O board PCI-DIO96 to which this d eclaration relates, m eets the essential requirements, is in conform ity with , and CE markin g has bee.
OMEGA Engineering Inc. One OMEGA Drive Stamford , CT 0 6801 ( 800 ) 872 - 9436 Fax: ( 203 ) 359 - 7700 E-mail: info@ omega .com www. omega .com.
An important point after buying a device Omega Engineering PCI-DIO96 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
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