MSI-NC930-V2 User Manual (Adobe Acrobat Format)
Contents
1. PC104 Resceceseccceceoosoo O 2 2 Mechanical Information 92 9 9m mg 8 B gs da 2 3 Base Address Switch The NC 930 module occupies 8 consecutive locations in I O address space The first address or base address is selected via a 8 position DIP switch labeled SW1 and SW2 If more than one module are to be installed to the embedded system each module must be given its own distinct I O address or base address No more than one module may use the same base address It would be better if you check with Appendix A for I O port distribution to avoid conflicting with other installed devices In factory the NC 930 base address is set for 220Hex or 544 Dec To set to appropriate base address switch the individual switches into the ON or OFF position The following figure shows DIP switch default setting 220 Hex where switches 1 and 5 are moved to the OFF position while leaving all other switches in the ON position A table for DIP switch setting is given in the following page BASE ADDRESS SWITCH SETTING Sw2 SWI 8 16 32 64 128 256 512 Weighting NOTE X Not used Each switch represents one address weight The desired base address is determined by adding the weight of the switches flipped at OFF position The base address calculation is as follow Base Address 512 32 544 Decimal 222. 17 CHAPTER 4 PROGRAMMING Su usss 18 4 1 Digital Input and Output1 18 4 2 Interrupt c 19 CHAPTER 5 APPLICA 24 5 1 Event Trigger J 24 APPENDIX VO PORT 27 APPENDIX B BLOCK DIAGRAM 28 APPENDIX C TECHNICAL REFERENCE 29 General Usage of Digital Input and Outputl 29 Port A B and C Basic Definition 31 APPENDIX D PC 104 MECHANICAL SPECIFICATION 32 PC 104 General Description 32 Module Dimensions 32 CHAPTER 1 INTRODUCTION 1 1 General Description The NC 930 is a PC 104 module which is primary intended to PC embedded application in industrial environment containing Isolated 24 bit digital 16 input and Soutput It can used with TTL low level input output circuitry or with solid state relay module such as NC 416 or NC 424 and p
3. Primary parallel printer port LPT1 SDLC communication port Monochrome adapter printer EGA reserved Color graphics adapter Floppy disk controller Primary serial port COM1 24 APPENDIX B BLOCK DIAGRAM 00q cOd rod od SIG STIA JIDO I IOXLLNOO Ld LNI JIDO I dood SSAAAdAAY 25 APPENDIX C TECHNICAL REFERENCE General Usage of Digital Input and Output Digital signals are usually used for detecting logical status or controlling devices brief description is given below TTL level signals are developed by most DAS systems TTL or LSTTL Level I O Connections TTL LEVEL CONNECTION TTL ES Connection with CMOS Device Use a pull up resistor if you wish to interface to CMOS devices This will raise the logic high output level from its minimum TTL level of 2 4V to 5V suitable for CMOS interface 26 Digital Input for Open Short Switch Detection A pull up resistor must be connected especially at long distance wiring to ensure logic high input level Digital Output for relay Driving The D1 diode is added to protect the IC driver against the inductive kickback from the relay coil D1 il 27 Port A and B Basic Definition 1 Equivalent ckt for Port A and VCC 4 i Pull High Resistor Internal Data Bus 34 Pin Connector for input 16 Pin Connector for output Data 00 DI7 Write Pulse 018 DI15 74LS273
4. Pc3_high 1 outp 0x20 0x20 void close_int void disable setvect 0x0d old int outp 0x21 inp 0x21 0x20 enable j main clrscr initiate outp BASE 3 0x9B while kbhit Default base address setting IRQ5 interrupt number Get old interrupt vector and save it Install the new handler Unmask IRQS Read status If interrupt occur set pc3 high to 1 Interrupt completed Restore original interrupt vector Mask IRQS Assign Group 1 as input 22 if DO3_high 1 DI amp 0x01 0 printf DIO pressed 7 if DI amp 0x02 0 printf pressed 7 if DI amp 0x04 0 printf DI2 pressed 7 if DI amp 0x08 0 printf pressed 7 if DI amp 0x10 0 printf 014 pressed 7 if DI amp 0x20 0 printf DI5 pressed 7 if DI amp 0x40 0 printf DI6 pressed 7 if DI amp 0x80 0 printf DI7 pressed 7 delay 250 pc3 highz0 j j close int 23 APPENDIX A PC I O PORT MAPPING PORT ADDRESS RANGE 000 1FF 200 20F 278 27F 2E1 2 8 2FF 320 32F 378 37 380 38F 3BF 3CF 300 3DF 3F0 3F7 3F8 3FF FUNCTION PC reserved Game controller Joystick Second parallel printer port LPT2 GPIB controller Second serial port COM2 Fixed disk XT
5. PC 104 bus I O mapped with 10 bit addressing A9 10 8 consecutive addresses 8 bits Power Requirements 5V Physical Environmental Dimensions Weight Operating Temperature Rang Storage Temperature Rang Relative Humidity 0 4A typ 95mm 90mm 200g 0 to 60 C 25 to85 C To 90 non condensing 1 4 Accessories Guide 4 NC951 Screw terminal board for all digital I O connections Shipped with 3 3 feet 1 meter cable and 50 pin connector NC 954 24 channel opto isolated D I panel for signal connection and conditioning with the NC 930 Shipped with 3 3 feet 1 meter cable and 50 pin connector NC955 8 channel electromechanical single pole double throw SPDT and 16 opto isolated digital I P panel which is compatible with the NC 930 Shipped with 3 3 feet Imeter cable and 50 pin connector NC956 24 channel electromechanical single pole double throw SPDT which can be driven by the NC 930 Shipped with 3 3 feet 1 meter cable and 50 pin connector CHAPTER 2 MODULE CONFIGURATION AND INSTALLATION 2 1 Component Locator Diagram The following figure shows the location of NC 930 s components All switch and jumper settings in this figure are factory default setting nini M 0 00000000000000000000 jw Lem 01686 sima gt 5 ee em SWI ut
6. 8254 which consist of three independently programmable 16 bit counters for its timing function Each counter can be programmed to be divided by number within the range of 2 65535 The 8254 is suitable for Event counter Delay time generator Programmable one shot Square wave generator e For detailed information user should refer to the 8254 Programmable Interval Timer data sheet Counter Read Write and Control Register There are 4 registers need to program 8254 Time Counter including there Read Write and one Control register as follows Base 0 through Base 3 Base 0 Counter 0 Read Write register Base 1 Counter 1 Read Write register Base 2 Counter 2 Read Write register Base 3 Control word register Read Write register is used to load divisor to select counter or Read count from selected counter Control register is used to determine counter s operation 30
7. DO0 DO7 Control Port Control Port Write Pulse Line Receiver 74LS273 74LS244 Read pulse NOTE gt Optional Resistor Pack x i Not Installed Factory 2 Any port is programmable to input or output 3 Outputs are driven by 74LS244 and latched by 74LS273 4 Inputs are received by 74LS244 but not latched 5 Interrupt handing capability at DO3 and DO7 6 All inputs and outputs are buffered by standard line drivers and line receivers 7 The initial state and default setting of port A and B are tri state 28 APPENDIX D PC 104 MECHANICAL SPECIFICATION PC 104 General Description While the PC and PC AT architectures have become extremely popular in both general purpose desktop and dedicated non desktop applications its use in embedded microcomputer applications has been limited due to the large size of standard PC and PC AT motherboards and expansion cards This document supplies the mechanical and electrical specifications for a compact version of the PC AT bus optimized for the unique requirements of embedded systems applications The specification is herein referred to as 104 based on the 104 signal contacts on the two bus connectors 64 pin on P1 plus 40 pin on P2 Module Dimensions PC 104 modules can be of two bus types 8 bit and 16 bit These correspond to the PC and PC AT buses respectively 29 APPENDIX D PROGRAMMING 8254 COUNTER TIMER Introduction s NC 910 module uses INTEL
8. IF INTOISR 1 THEN BEGIN WRITELN Interrupt INTOISR 0 END READ RKB END UNTIL readkey 27 SETINTVEC INTP OLDISR PORT 21 PORT 21 8 END Generate a pulse to trigger interrupt Free interrupt 0b Disable IRQ9 20 CHAPTER 5 APPLICATION In this chapter two simple application examples are provided 5 1 Event Trigger Group 1 m _ O 4 1 DI7 m _ O ae 2 DI6 O pam 3 015 y 4 014 _ 8 DO3 O ur 5 O DI3 6 74LS30 DI2 i 11 073 12 DIO Configured Group 1 as input port and set jumpers as described in figure below Install the corresponding RP s If any of the push button is pressed an interrupt is acknowledged via DO3 Reading back the data value on Port A will tell us which one of the DIO through ID7 is low pressed down A demo program in Turbo C is provided in the following page JP2 IRQ9 IRQS IRQ10 E D P IRQ11 JP1 IRQ12 IRQ15 21 DEMO PROGRAM IN TURBO C FOR EVENT TRIGGER include lt dos h gt include lt conio h gt include lt static h gt define BASE 0 220 static int pc3_high 0 static short int_num static int PA void interrupt far isr static void interrup old int void initiate void disable int num 0xod old int getvect int num setvect int num isr outp 0x21 inportb 0x21 amp 0xdf enable j void interrupt far isr void enable if pc3 0 PA inp BASE
9. Port B eight digital Input16 lines 2 7 Hardware Description PC 104 module can be of two bus types 8 bit and 16 bit These correspond to the PC and PC AT buses respectively The detailed mechanical dimensions of these two PC 104 bus types are provided in Appendix D Basically the NC 930 belongs to 16 bit bus option which is designed only to by pass PC AT bus signal in order to compatible to PC AT type PC 104 module The NC 930 uses only IRQ lines on P2 40 pin connector If this module is going to plug onto PC type PC 104 bus do not use IRQ line above 10 Beside bus option there are stack through and non stack through difference The stack through version provides a self stacking PC bus It can be placed any where in a multi module stack The non stack through version offers minimum thickness by omitting bus stack through pins It must be positioned at one end of a stack For convenience the NC 930 is equipped with stack through version only NOTE For safety you are suggested to cut bus stack through pins of the last module on condition that you are sure you won t add plug any module to the module stack in the future 2 8 Module Installation The NC 930 board is shipped witch protective electrostatic cover When unpacking touching the board electrostatically shielded packaging with the metal frame of your computer to discharge the accumulated static electricity prior to touching the board Following description summarize the proce
10. 0 Hexadecimal PORT DIP SWITCH POSITION RANGE HEXADECIMAL 0 200 207 0 0 208 20F 210 217 218 21F 220 227 300 307 3F0 3F7 3F8 3FF 0 ON 1 OFF X don t care Factory Default Setting 2 4 IRQ Level Jumper Jumper labeled JP2 is used for selecting IRQ level 9 2 5 10 11 12 15 Below figure gives the jumper configuration and default setting of JP2 Place jumper cap at position if no interrupt is required JP2 1 _ IRQ9 IRQS 1010 gt 18012 IRQI5 13 X NO connect 2 5 ISOLATED DI Port DIO IN DI0 DI15 34 Os Pin Assignment Pin Pin Pin Assignment 010 1 DI0 DI8 3 4 DI8 DI1 5 DI1 DI9 7 8 DI9 DI2 9 10 DI2 DI10 11 12 DI10 DI3 13 14 DI3 DI11 15 16 DI11 014 17 18 014 0112 19 20 DI12 DI5 21 22 DI5 DI13 23 24 DI13 DI6 25 26 DI6 DI14 27 28 DI14 DI7 29 30 DI7 DI15 31 32 DI15 NC 33 34 NC 2 6 ISOLATED DO Port DIO OUT DO0 DO7 15 Pin Assignment Pin Pin Pin Assignment DOA0 1 2 DOB0 DOA1 3 4 DOB1 DOA2 5 6 DOB2 DOA3 7 8 DOB3 DOA4 9 10 DOB4 DOA5 11 12 DOB5 DOA6 13 14 DOB6 DOA7 15 16 DOB7 PINNAME DESCRIPTION 5V 5V PC power supply DIO DI7 Port A eight digital Input16 lines DIS DI15
11. NC 930 v2 Isolated 24 Bit DIO Module 930 2 GP MADE IN TAIWAN 4 a a 9 5 E Li 3 a a mI a Release date 2013 07 25 Copyright Copyright 2002 by NETCOM Co Ltd All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior written permission of NETCOM Co Ltd NETCOM Co Ltd believes to contribute accurate and conscientious information in this manual Nevertheless no responsibility is assumed by NETCOM Co Ltd for its use nor for any infringements of patents or other right of third parties which may result from its use NETCOM Co Ltd reserves the right to change this document or make improvements in the products described within at any time without notice IBM is a trademark of International Business Machines Corporation MS DOS MICROSOFT C and Quick BASIC are trademarks of Microsoft Corporation TURBO C is a trademark of Borland Inc BASIC is a trademark of Dartmouth College Intel is a trademark of Intel Corporation May 2002 NETCOM Co Ltd Printed in Taiwan Edition Lili CHECK LIST Before getting started check if your 930 Isolated 24 Bit DIO Module package includes the following items NC 930 board Screw 3mm x 4 Bronze stick 6mm x 4 NC 930 user s manual If anything is m
12. dures for installing the NC 930 WARNING TURN OFF PC and all accessories connected to the PC whenever installing or removing any peripheral board including the NC 930 module Installation procedures DUE Dr MIU I 8 9 Turn off the system power Unplug all power cords Remove the case cover if necessary Remove the top module if it a non stackthrough module Put the NC 930 module in line with the present module as described in Appendix D Install four spacers and fasten them if necessary Crush between the module until inside distance is SPACER s height 0 6 Restore all the screws Repeat step 6 until all module are set into position Replace the case cover and connect all the necessary cables 10 Turn on the system power CHAPTER 3 REGISTER STRUCTURE AND FORMAT The NC 930 occupies 8 consecutive I O addresses of PC IO address space During installation the first address or base address is determined by setting onboard DIP switch SW2 amp SW1 This chapter describes each NC 930 register in terms of function address bit structure and bit function Each register is easy to read and write to by using direct I O instruction of whatever application languages 3 1 Address MAP The Isolated 24 digital I O lines of NC 930 are arranged into two separated groups Each group supports 8255 PPI chip mode 0 The NC 930 is programmable through configuration registers By writing to control register the typ
13. e of each group may be specified If a group is configured as a write port the data drivers will drive the data value to the corresponding port If a group is configured as a read port the data value on corresponding port will be sent to the digital I O lines The following table lists and describes the register and their locations R Read W Write Base Base address Location Function Type Base 0 Group 1 Port A R W 1 Group 1 Port B R W 3 Group 1 Port C R W 4 Group 1 Control Register W 3 2 Register Description Group 1 Data and Control Registers Base 0 to 3 Port A Data Register Base 0 R W INPUT base 7 6 5 4 3 2 1 0 0 Port Data Register Base 1 R W INPUT base 7 6 5 4 3 2 1 0 1 015 0014 DII2 910 DI9 DIS Port C Data Register Base 2 R W OUTPUT base 7 6 5 4 3 2 1 0 2 DO7 pos DOS 04 DO2 DO1 DOO Counter Register Base 3 W base 7 6 5 4 3 2 1 0 3 1 0 0 03 0 D Port A Port C upper Port B Port C lower NOTE DI0 DI7 DIS bits are associated to pins at DIOIN1 connector DOAO0 DOAT DOBO DOB7 bits are associated to pins at DIOOUT connector For D0 D1 D4 1 Input 0 Output CHAPTER 4 PROGRAMMING 4 1 Digital Input and Output NC 930 provides Isolated 24 bit digital I O lines arranged into two groups Each group contains three 8 bit ports Port A B and C Port C is di
14. issing please contact your dealer Table of Contents CHAPTER 1 INTRODUCTION i au qu ima sai In sassaasashussastasaskasss 5 1 1 General Description 5 1 2 Applicati ns c 5 1 3 SpecificatIiomns Ju uu 6 1 4 Accessories Guide 4 9 CHAPTER2 MODULE CONFIGURATION AND INSTALLATION 9 2 1 Component Locator Diagram 9 2 2 Mechanical Information 10 2 3 Base Address Switch 11 TRO Level Jumper 12 2 5 Isolated DI Port c 13 2 6 Isolated DO Port 14 2 7 Hardware Description 15 2 8 Module Installation 15 CHAPTER 3 REGISTER STRUCTURE AND FORMAT A 16 3 1 Address Map 16 3 2 Registers Description
15. rovides 2500V isolation for interfacing with high level AC and DC signals The 24 TTL DTL COMS compatible digital I O lines are arranged into two separated groups Each group supports 8255 PPI Programmable Peripheral Interface chip mode 0 but with stronger driving capability and consists of two 8 bit ports Port A Port B These ports can be functionally programmed as either digital inputs or digital outputs 1 2 Applications Sense and control high level signals through I O module Sense low level TTL switches or signals Drive indicator light or control recorders e Parallel data transfer to PC 1 3 Specifications INPUT AND OUTPUT Input Output Lines Operation Mode Input Output Mode Interrupt Options Improved Noise Margins Input Output Level Added Pull up Resistor Electrical Characteristics Vm Im In Vou Vor lon INTERFACE CHARACTERCTIC I O Cable Ribbon Twisted Pair Cable Ribbon Stripline Cable Compatible Bus Interface Type Number of Locations occupied Data Path Isolated Input16 Output 8 Isolation up to 1000 Vrms 8255 Mode 0 Pair Jumper selectable to level 9 2 5 10 11 12 or 15 Hysteresis Vrt Vr 4typ TTL DTL compatible CMOS dry contact compatible 2V min 0 8V max 20uA max at 22 7 0 2mA max at 0 4 2 4 min at 0 4V max at 12mA 15mA max 24mA max Zo 50 Qto 100R typ Zo 30 to 80R typ
16. t The NC 930 s built in interrupt control circuitry allows either Port C DO3 bit or DO7 bit of each group to cause an interrupt request The group where interrupt comes from can be discovered by polling data from each group s Port C bit 3 and bit 7 Interrupt can be caused by external input to Port C or by direct output to Port C This feature can be used to detect external critical signal or to generate an interrupt from program The following is another demo program written in Turbo Pascal It is similar to the preceeding program in Turbo C except here we select Group 1 and IRQ9 The jumpers settings are thus differ as follows JP2 IRQ9 IRQS IRQ10 E D P IRQ11 JP1 IRQ12 IRQ15 DEMO PROGRAM IN PASCAL M 1024 0 0 PROGRAM NC920_IRQ9_INT USES DOS CRT CONST INTP 0A IRQ9 MIMR FB Enable peripheral interrupt controller for IRQ9 BASE 220 Default base setting CTR_R 89 VAR INTOISR INTEGER OLDISR POINTER RKB CHAR PROCEDURE NEW_ISR INTERRUPT BEGIN INTOISR 1 PORTI 20 20 END BEGIN GETINTVEC INTP OLDISR SETINTVEC INTP NEW_ISR Get old interrupt vector and save it Install the new handler PORT 21 MIMR AND PORT 21 Enable IRQ9 PORT BASE 3 CTR_R Set Port A as output Port C as input WRITELN ENTER key to continue ENTER ESC to end INTOISR 0 READ RKB REPEAT BEGIN PORT BASE 0 00 PORT BASE 0 08 PORT BASE 0 00
17. vided into two 4 bit nibbles Port C upper Port C lower The I O direction of the ports Port A B C upper and C lower can be determined by programming to the control register Programming Examples The following BASIC program configures Group 1 Port A and B as input port install corresponding RP s Port C as output port An increasing pattern is sent to Port C It is expected that user will connect both Port A and Port B to Port C before running this program 10 CLS 20 PORT amp H220 REM Base address 30 3 amp 92 REM Port B input Port C output 40 FOR J 0 TO 255 REM Decimal value from 00 to FF 50 OUT PORT 2 J REM Output data to Port C 60 B INP PORT REM Read data on Port A 70 C INP PORT 1 Read data Port 80 PRINT B C J REM Check data versus Port A and B 90 NEXT J 100 END The following program configures Group 1 Port A B and C as output ports Data value of 00 to FF Hex are sent to all ports and read back from output latch to ensure that the transfer is successful 10 Port amp H220 REM Base address 20 Out Port 3 amp H80 REM Port A are all output 30 For J Port to Port 2 REM Decimal value for Port A to C 40 For X 0 TO 255 REM Decimal value for 00 to FF Hex 50 Out J X REM Output value X to port J 60 B INP J REM Read back from latch 70 PRINT X B J REM Print input output value port 80 NEXTX 9 NEXT J 100 END 4 2 Interrup
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