104-II32-4RO
Contents
1. COON TODCOr CO e e CN Figure 3 1 OPTION SELECTION MAP A2 not used 10 Manual 104 132 4 ADDRESS SELECTION This board occupies eight consecutive addresses in I O space The base or starting address can be selected anywhere within the I O address range of 100 3FF provided that it does not cause an overlap with other functions If the addresses of two installed functions overlap you will experience unpredictable computer behavior The FINDBASE program supplied by ACCES will assist you in selecting a base address that will avoid this conflict Table 3 1 ADDRESS ASSIGNMENTS FOR COMPUTERS HEX RANGE USAGE 000 00 8237 DMA Controller 1 020 021 8259 Interrupt 040 043 8253 Timer 060 06F 8042 Keyboard Controller 070 07F CMOS RAM NMI Mask Reg RT Clock 080 09F DMA Page Register 0 8259 Slave Interrupt Controller 0 0 0 8237 DMA Controller 2 OFO 0F 1 Math Coprocessor OF8 OFF Math Coprocessor 170 177 Fixed Disk Controller 2 1 0 1 8 Fixed Disk Controller 1 200 207 Game Port 238 23B Bus Mouse 23C 23F Alt Bus Mouse 278 27F Parallel Printer 2B0 2BF EGA 2 0 2 200 20 2 0 2 7 2 8 2 2F8 2FF Serial Port 300 30F reserved 310 31F reserved 320 32F Hard Disk XT 370 377 Floppy Controller 2 378 37F Parallel Printer 380 38F SDLC 3A0 3AF SDLC 3B0 3BB MDA 3BC 3BF Parallel Printer 3C0 3CF VGA EGA2. high for 250nS This event can be read back by a software read and cleared by a software write OUTPUTS The electromechanical relay outputs are comprised of four FORM C SPDT outputs The relays are all de energized at power on Data to the relays is latched by a software write A fused 5V source is available on the 50 pin I O connector for general purpose use There are two 2 pins with this source as well as two 2 Ground pins A polyfuse will open the circuit if 0 5A is drawn for more than a moment acting as a slow blow type fuse This fuse is resettable however and once the source of excessive current is corrected the fuse will reset If no action is taken by the user the fuse will open until it s element cools off then the fuse will reset and if the current is still at 0 5A the fuse will open again 5 Manual 104 132 4 34 PIN INPUT CONNECTOR AND 50 PIN I O CONNECTOR SIGNALS JUMPER SELECTED FILTERS Figure 1 1 BLOCK DIAGRAM SCHMITT TRIGGER BUFFER 4 SPDT BUFFERS RELAY OUTPUTS IN CIRCUIT PROGRAMMABLE DETECTION LOGIC 50 CONNECTOR IRQ JUMPER SELECTION ADDR amp CONTROL LINES DATA LINES cu PC 104 8 BIT BUS m Figure 1 2 EXAMPLE OF ONE INPUT CIRCUIT 1 8K Vcc FILTER JUMPER 4 7K 6 Manual 104 132 4 Chapter 2 INSTALLATION A printed Quick Start Guide QSG is
3. 3D0 3DF CGA 3E8 3EF Serial Port 3 0 7 Floppy Controller 1 3F8 3FF Serial Port The board s base address is set up by JUMPERS Those jumpers control address bits through 9 Lines 2 A1 and AO are used on the board to control individual registers How these three lines are used is described in the Programming section of this manual To determine how to set these JUMPERS for a desired hex code address refer to the SETUP program provided with the board If you prefer to determine proper jumper settings yourself first convert the hex code address to binary form Then for each 0 install corresponding jumpers and for each 1 remove the corresponding jumper 11 Manual 104 132 4 The following example illustrates jumper selection corresponding to hex 300 or binary 11 0000 Oxxx The xxx represents address lines A2 A1 and AO used on the board to select individual registers as described in the Programming section of this manual Base Address in Hex Code Binary Representation Line Controlled Jumper Selection Carefully review the address selection reference table on the preceding page before selecting the board address If the addresses of two installed functions overlap you will experience unpredictable computer behavior Eo be 12 Manual 104 132 4 Chapter 4 PROGRAMMING The board occupies eight consecutive addresses in PC I O s
4. Figure 3 1 OPTION SELECTION 10 ADDRESS SELECTION ter nene red te Hl edel pe e epe a Te ER ea end 11 Table 3 1 ADDRESS ASSIGNMENTS FOR 11 Chapter 4 13 Chapter 5 SOFTWARE ps 16 Chapter 6 CONNECTOR PIN 5 6 17 Table 6 1 Connector Pin Assignments 1 nennen enne 17 Table 6 2 Connector Pin Assignments 2 18 4 Manual 104 132 4 Chapter 1 FUNCTIONAL DESCRIPTION The board provides isolated digital inputs with Change of State Detection and electromechanical relay output interfaced for PC 104 compatible computers The board provides thirty two optically isolated inputs for AC or DC control signals and four electromechanical relay outputs The board occupies eight consecutive addresses in I O space Read and write operations are done on an 8 bit byte oriented basis INPUTS The isolated inputs can be driven by either AC or DC signals and are not polarity sensitive Input signals are rectified by photocoupler diodes A 1 8K ohm resistor in series dissipates unused power Standard 12 24 AC control transformer outputs can be accepted
5. 1 Relay Common 31 IIN24 A Isolated Input 24 A 7 OUT2 NO Bit 2 Relay Normally Open Contact 32 IIN24 B Isolated Input 24 B 8 OUT2 NC Bit 2 Relay Normally Closed Contact 33 9 OUT2 C Bit 2 Relay Common 34 10 OUT3 NO Bit 3 Relay Normally Open Contact 35 IIN23 A Isolated Input 23 A 11 OUT3 NC Bit 3 Relay Normally Closed Contact 36 IIN23 B Isolated Input 23 12 OUT3 C Bit 3 Relay Common 37 IIN22 A Isolated Input 22 A 13 GND Ground 38 IIN22 Isolated Input 22 B 14 Vcc 5 volts fused 39 IIN21 A Isolated Input 21 A 15 Vcc 5 volts fused 40 IIN21 B Isolated Input 21 B 16 GND Ground 41 IIN20 A Isolated Input 20 A 17 Isolated Input 31 A 42 IIN20 B Isolated Input 20 18 IIN31B Isolated Input 31 B 43 IIN19 A Isolated Input 19 A 19 Isolated Input 30 A 44 IIN19 B Isolated Input 19 B 20 IIN30 B Isolated Input 30 B 45 IIN18 A Isolated Input 18 A 21 IIN29 A Isolated Input 29 A 46 IIN18 B Isolated Input 18 B 22 IIN29B Isolated Input 29 B 47 lsolated Input 17 A 23 IIN28A Isolated Input 28 A 48 IIN17 B Isolated Input 17 B 24 IIN28 B Isolated Input 28 B 49 Isolated Input 16 A 25 27 Isolated Input 27 A 50 IIN16 B Isolated Input 16 B Table 6 2 Connector Pin Assignments P2 18 Manual 104 1132 4RO Chapter 7 SPECIFICATIONS ISOLATED INPUTS Number of inputs Type Voltage Range Isolation Input Re
6. as well as DC voltages The input voltage range is 3 to 31 volts rms for a hi or 1 reading External resistors connected in series may be used to extend the input voltage range however this will raise the input threshold Consult with factory for available modified input ranges Each input circuit contains a switchable filter that has a 4 7 mS time constant Without filtering the response is 10 uS The filter must be selected for AC inputs in order to eliminate the on off response to AC The filter is also valuable for use with slow DC input signals in a noisy environment The filter may be switched out for DC inputs in order to obtain faster response Filters are individually selected by jumpers The filters are switched into the circuit when the jumpers are installed in position FLTO to FLT31 INTERRUPTS When enabled by a software write the board asserts an interrupt whenever any of the inputs changes state from high to low or low to high This is called Change of State COS detection Once an interrupt has been generated and serviced it must be cleared by a software write The 32 inputs are enabled in 8 groups of 4 inputs each Interrupts are directed to IRQ levels 3 through 7 9 through 12 14 and 15 by jumper installation This board has been designed to allow for IRQ sharing When a COS event happens the selected IRQ level comes out of tri state for 1 uS during which the IRQ signal is low for 750 nS then transitions to
7. block the holes on the component side of the board Pin 1 Figure 2 1 PC 104 Key Information 8 Manual 104 132 4 Chapter 3 OPTION SELECTION FILTER RESPONSE SWITCH Jumpers are used to select input filtering on a channel by channel basis When jumper FLTO is installed filtering is introduced for input bit O FLT1 for bit 1 etc JUMPER SELECTION Bit Filtered JUMPER SELECTION Bit Filtered IN16 IN17 IN18 IN19 IN20 IN21 IN22 IN23 IN24 IN25 IN26 IN27 IN28 IN29 IN30 IN31 This filtering provides a slower response for DC signals as described previously and must be used when AC inputs are applied If you believe an input may be electrically noisy install the jumper to avoid false readings INTERRUPTS Select the desired interrupt level by installing a jumper at one of the locations marked IRQxx An interrupt is asserted by the board when an Isolated Digital Input bit changes state if enabled in software A full description of how to enable disable and clear IRQs is described in the Programming section of this manual 9 Manual 104 132 4 0 20 3 775 ADDRESS 0x300 io 52 5 Ov N OO O 1001 05 3 55 0 20 gt gt gt gt gt gt gt FILTER SELECT JUMPERS JUMPERED Z ARE FILTERED SHEBBEHBHBEBEBBBE JUMPER
8. connected to the board via a 34 pin HEADER type connector named P1 The mating connector is an IDC type with 0 1 inch centers or equivalent The wiring may be directly from the signal sources or may be on ribbon cable from screw terminal accessory boards Pin assignments are as follows IDC 34 Pin Header Male 33 4 5 7 10 11 12 13 14 15 16 pu rep 1 19 20 2 22 23 24 25 26 27 28 29 30 5 32 33 IIN15 B Isolated Input 15 Table 6 1 Connector Pin Assignments P1 17 Manual 104 1132 4RO Relay outputs are connected to the board via a 50 pin HEADER type connector named P2 The mating connector is an IDC type with 0 1 inch centers or equivalent IDG 50 Pin Header Male 2 a B 8 EM E HH 50 11055 4 44 4 49 FUNCTION PIN NAME FUNCTION 1 OUTO NO Bit 0 Relay Normally Open Contact 26 IIN27 Isolated Input 27 B 2 OUTO NC Bit 0 Relay Normally Closed Contact 27 IIN26 A Isolated Input 26 3 OUTO C Bit 0 Relay Common 28 IIN26 B Isolated Input 26 4 OUT1 NO Bit 1 Relay Normally Open Contact 29 IIN25 A Isolated Input 25 A 5 OUT1 NC Bit 1 Relay Normally Closed Contact 30 IIN25 B Isolated Input 25 6 OUT1 C Bit
9. specific relay the last four bits do not control anything A 0 energizes the corresponding relay and a 1 turns it off 14 Manual 104 1132 4RO Write to Base 0 Relay Controlled OUT3 OUT2 OUT1 OUTO For example if bit D2 is turned on by writing hex DF to the base address then the relay that is controlled by OUT2 is energized closing the associated normally open contacts All other relays would be de energized and their normally closed contacts would be closed 15 Manual 104 132 4 Chapter 5 SOFTWARE Utility software provided on CD with the board include the base address locator an illustrated setup program and a sample program The sample program sequentially turns on and off each relay walking bit After each relay is turned on the opto isolated inputs are read and the data is displayed FINDBASE DOS Program locates active and available port addresses SETUP Windows Board Setup Program for jumpers on the board The sample programs are in forms suitable for use with QuickBASIC C and Pascal CSAMPLES 5 This sample program sequentially turns on all relay control bits and sequentially turns them off walking bit Each time it sets a new bit both the relay status and the isolated input are read and the data displayed This demonstrates how to read and write to a port PSAMPLES SAMPLE1 Same sample in Pascal 16 Manual 104 132 4 Chapter 6 CONNECTOR PIN ASSIGNMENTS Isolated Inputs are
10. ACCES 1 0 PRODUCTS INC 10623 Roselle Street cs n Diego CA 92121 858 550 9559 e Fax 858 550 7322 ontactus accesio com www accesio com ISOLATED DIGITAL INPUT RELAY OUTPUT BOARD MODEL 104 II32 4RO USER MANUAL File M104 1132 4RO B1i Notice The information in this document is provided for reference only ACCES does not assume any liability arising out of the application or use of the information or products described herein This document may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of ACCES nor the rights of others IBM PC PC XT and PC AT are registered trademarks of the International Business Machines Corporation Printed USA Copyright 2005 by ACCES I O Products Inc 10623 Roselle Street San Diego 92121 All rights reserved WARNING ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH THE COMPUTER POWER OFF ALWAYS TURN COMPUTER POWER OFF BEFORE INSTALLING A BOARD CONNECTING AND DISCONNECTING CABLES OR INSTALLING BOARDS INTO A SYSTEM WITH THE COMPUTER OR FIELD POWER ON MAY CAUSE DAMAGE TO THE I O BOARD AND WILL VOID ALL WARRANTIES IMPLIED OR EXPRESSED 2 Manual 104 132 4 Warranty Prior to shipment ACCES equipment is thoroughly inspected and tested to applicable specifications However should equipment failure occur ACCES assures its customers that prompt service and support will be
11. P Program can be used to assist in configuring jumpers on the board Be especially careful with Address Selection If the addresses of two installed functions overlap you will experience unpredictable computer behavior To help avoid this problem refer to the FINDBASE EXE program installed from the CD The setup program does not set the options on the board these must be set by jumpers To Install the Board 1 Install jumpers for selected options and base address according to your application requirements as mentioned above 2 Remove power from the PC 104 stack 3 Assemble standoff hardware for stacking and securing the boards 4 Carefully plug the board onto the PC 104 connector on the CPU or onto the stack ensuring proper alignment of the pins before completely seating the connectors together 5 Install I O cables onto the board s I O connectors and proceed to secure the stack together or repeat steps 3 5 until all boards are installed using the selected mounting hardware 6 Check that all connections in your PC 104 stack are correct and secure then power up the system 7 Run one of the provided sample programs appropriate for your operating system that was installed from the CD to test and validate your installation 1 you are installing this board into a PC 104 Pin 0 stack that has the holes for Pin C19 and pce B10 blocked please cut these two pins as shown from the solder side of this board It is not necessary to
12. available All equipment originally manufactured by ACCES which is found to be defective will be repaired or replaced subject to the following considerations Terms and Conditions If a unit is suspected of failure contact ACCES Customer Service department Be prepared to give the unit model number serial number and a description of the failure symptom s We may suggest some simple tests to confirm the failure We will assign a Return Material Authorization RMA number which must appear on the outer label of the return package All units components should be properly packed for handling and returned with freight prepaid to the ACCES designated Service Center and will be returned to the customer s user s site freight prepaid and invoiced Coverage First Three Years Returned unit part will be repaired and or replaced at ACCES option with no charge for labor or parts not excluded by warranty Warranty commences with equipment shipment Following Years Throughout your equipment s lifetime ACCES stands ready to provide on site or in plant service at reasonable rates similar to those of other manufacturers in the industry Equipment Not Manufactured by ACCES Equipment provided but not manufactured by ACCES is warranted and will be repaired according to the terms and conditions of the respective equipment manufacturer s warranty General Under this Warranty liability of ACCES is limited to replacing repairing or issuing credit at ACCES discr
13. etion for any products which are proved to be defective during the warranty period In no case is ACCES liable for consequential or special damage arriving from use or misuse of our product The customer is responsible for all charges caused by modifications or additions to ACCES equipment not approved in writing by ACCES or if in ACCES opinion the equipment has been subjected to abnormal use Abnormal use for purposes of this warranty is defined as any use to which the equipment is exposed other than that use specified or intended as evidenced by purchase or sales representation Other than the above no other warranty expressed or implied shall apply to any and all such equipment furnished or sold by ACCES 3 Manual 104 1132 4RO TABLE OF CONTENTS Chapter 1 FUNCTIONAL DESCRIPTION 2 1 5 Figure 1 1 BLOCK DIAGRAM et De CE Fea a e an a 6 Figure 1 2 EXAMPLE OF ONE INPUT CIRCUIT rennen rennen 6 Chapter 2 INSTALLATION 2 05 pipi otia oeste ib b pod tesa oT p dete la stove tnt etek aves ts 7 Fig re 2 1 PC 104 Key Informatio merreni tt ted eei HT nee UE IU n EO ER AREE slice 8 Chapter 3 OPTION 00 9 FILTER RESPONSE SWITCH ce pite ee ice ed ede ide e e EE A ede RE de 9
14. intention was to eliminate the influence of common mode Use proper wiring techniques to minimize voltage between channels and to ground For example when working with AC voltages do not connect the hot side of the line to an input Tolerance of higher isolation voltage can be obtained on request by applying a conformal coating to the board 19 Manual 104 132 4 Customer Comments If you experience any problems with this manual or just want to give us some feedback please email us at manuals accesio com Please detail any errors you find and include your mailing address so that we can send you any manual updates ACCES 1 0 PRODUCTS INC 10623 Roselle Street San Diego CA 92121 Tel 858 550 9559 FAX 858 550 7322 www accesio com 20 Manual 104 132 4
15. pace The base or starting address is selected during installation and will fall on an eight byte boundary The boards read and write functions as follows Base 0 Read Isolated Inputs 00 07 Write Relay Outputs 0 3 Base 1 Read Isolated Inputs 08 15 unused Base 2 Read Isolated Inputs 16 23 unused Base 3 Read Isolated Inputs 24 31 unused Base 4 unused Dis Enable IRQ 00 0F Base 5 Read COS Status Register Clear Interrupt Base 6 unused unused Base 7 unused unused ISOLATED DIGITAL INPUTS Isolated digital input states are read as a single byte from the port Each of the eight bits within the byte corresponds to a particular digital input A 1 signifies that the input is energized on high and a 0 signifies that the input is de energized off low Read at Base 0 wma or Iso Digital Input IINO7 IINO6 IINOS IINO4 IINO3 IINO2 IINO1 IINOO Read at Base 1 or o Iso Digital Input 1 15 IIN14 IIN13 IIN12 IIN11 IIN10 IINO9 IINO8 amp Read at Base 2 mme or o oo Iso Digital Input IIN23 IIN22 IIN21 IIN20 IIN19 IIN18 IIN17 IIN16 Read at Base 3 or lo Iso Digital Input IIN31 IIN30 IIN29 IIN28 1327 1326 11325 11324 The board response to inputs is rated at 10 uS Sometimes it is necessary to slow down that response to accommodate AC inputs or in noi
16. packed with the board for your convenience If you ve already performed the steps from the QSG you may find this chapter to be redundant and may skip forward to begin developing your application The software provided with this PC 104 Board is on CD and must be installed onto your hard disk prior to use To do this perform the following steps as appropriate for your operating system Substitute the appropriate drive letter for your CD ROM where you see d in the examples below CD Installation The following instructions assume the CD ROM drive is drive D Please substitute the appropriate drive letter for your system as necessary DOS 1 Place the CD into your CD ROM drive 2 Type 21 14 to change the active drive to the CD ROM drive 3 Type UNI SI to run the install program 4 Follow the on screen prompts to install the software for this board WINDOWS 1 Place the CD into your CD ROM drive 2 The system should automatically run the install program If the install program does not run promptly click START RUN and type 2 click OK or press Ed 3 Follow the on screen prompts to install the software for this board LINUX 1 Please refer to linux htm on the CD ROM for information on installing under linux 7 Manual 104 132 4 Installing the Hardware Before installing the board carefully read Chapter 3 and Chapter 4 of this manual and configure the board according to your requirements The SETU
17. sistance Response Time Interrupts RELAY OUTPUTS Number of outputs Contact Type Rated Load AC Rated Load DC Max Switching Voltage Max Switching Current Contact Resistance Contact Life mechanical Operating Time Release Time INTERRUPTS POWER REQUIRED ENVIRONMENTAL Operating Temp Weight Thirty two Non polarized optically isolated from each other and from the computer CMOS compatible 3 to 31 DC or AC Rms 40 to 10000 Hz 500V see note 1 8K ohms in series with opto coupler two LEDs 4 7 mSec w filter 10 uSec w o filter typical Software controlled with jumper IRQ selection Four SPDT form C Single crossbar Ag with Au clad 0 5A at 125VAC 62 5 VA max 1A max at 24VDC 60 W max 125 VAC 60 VDC 1A 100 mO maximum 5 million operations minimum 5 milliseconds maximum 5 milliseconds maximum Interrupts are generated when isolated inputs change state if enabled by software 5VDC 150 mA all relays ON 0 to 70 C Approximately 3 02 oz Notes on Isolation Opto lsolators and connectors are rated for at least 500V channel to channel and channel to ground Isolation voltage breakdowns will vary and are affected by factors like cabling spacing of pins spacing between traces on the PCB humidity dust and other environmental factors This is a safety issue so a careful approach is required For CE certification isolation was specified at 40V AC and 60V DC The design
18. sy environments Hardware installation of JUMPERS to implement filtering are provided COS change of state The board supports interrupts on change of state of isolated digital inputs Enabling the COS feature is controlled by writing to base address 4 The COS feature is enabled and read back in 8 groups of 4 inputs according to the table below Data is written to all eight COS groups as a single byte Each bit within the byte controls a specific COS group A 1 enables the corresponding group and a 0 disables it 13 Manual 104 1132 4RO Write to Base 4 or o8 ov oo COS GROUP ISOLATED INPUT COS GROUP ISOLATED INPUT IINOO IIN16 IINO1 IIN17 IINO2 IINO4 Reading the COS Status Register is accomplished by a read to base 5 This status register is read as a single byte Each of the eight bits corresponds to a particular COS group in the same manner as the enabling byte A 1 signifies that a COS has occurred on one of the four associating isolated inputs a 0 signifies that a COS has not occurred Clearing IRQs as well as the COS Status Register is accomplished by writing any value to base address 5 This clears all COS groups together RELAY OUTPUTS At power up all relays are initialized in the de energized state The relay outputs are controlled by writing to base address Data is written to all four relays as a single byte Each of the first four bits within the byte controls a
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