Contec CNT24-4 Manuel utilisateur
CNT24-4(PCI)
24Bit Up/Down Counter Board for PCI
User’s Guide
CNT24-4(PCI) i
Copyright
Copyright 1997 CONTEC Co., LTD. ALL RIGHTS RESERVED
No part of this document may be copied or reproduced in any form
by any means without prior written consent of CONTEC Co., LTD.
CONTEC Co., LTD. makes no commitment to update or keep
current the information contained in this document. The
information in this document is subject to change without notice.
All relevant issues have been considered in the preparation of this
document. Should you notice an omission or any questionable
item in this document, please feel free to notify CONTEC Co.,
LTD.
Regardless of the foregoing statement, CONTEC assumes no
responsibility for any errors that may appear in this document nor
for results obtained by the user as a result of using this product.
Trademarks
MS, Microsoft, MS-DOS and Windows are trademarks of Microsoft
Corporation. Other brand and product names are trademarks of
their respective holder.
CNT24-4(PCI)
ii
Product Configuration
-CNT24-4(PCI) Board…1
-CNT24-4(PCI) Setup Disk (3.5inch/1.44MB)…1
-User's Guide (this Booklet)…1
Unpacking:
This card is specially packed in an anti-static bag to prevent damage
in shipping.
Check the contents to make sure that you have everything listed
above. If you do not have all the items, contact your distributor
or CONTEC group office where you purchased.
Note! Do not remove the board from its protective packaging until the
computer case is open and ready for installation. Electrical static
can cause damage to electrical components.
CNT24-4(PCI) iii
Table of Contents
Copyright........................................................................... i
Trademarks........................................................................ i
Product Configuration......................................................ii
1. Introduction............................................................. 1
Features.........................................................................1
Limited Three-Year Warranty......................................2
How to Obtain Service..................................................2
Liability .........................................................................2
About the Manual .........................................................3
2. Setup....................................................................... 5
Component Locations....................................................... 5
Setting the Board ID........................................................ 6
Setting procedure..........................................................6
Setting the Interrupt Use................................................ 7
Setting up the Board
(For Use under MS-DOS or Windows 3.1)...................... 8
Procedure.......................................................................8
Checking resources.......................................................8
Obtaining resource information...................................9
Sample programs for MS-DOS.....................................9
Sample's Specification ................................................10
Setting up the Board (for Use under Windows 95)....... 14
Checking the OS version ............................................14
Procedure for use under Windows 95
version 4.00.950 or 4.00.950a.....................................15
Procedure for use under Windows 95
version 4.00.950B........................................................15
Method of installing two or more CNT24-4(PCI)
boards (for use under Windows 95 version 4.00.950
or 4.00.950a)................................................................16
Method of installing two or more CNT24-4(PCI)
boards
(for use under Windows 95 version 4.00.950B) .........18
Checking resources.....................................................19
CNT24-4(PCI)
iv
Support software.........................................................20
Setting up the Board (for Use under Windows NT) ..... 21
Procedure.....................................................................21
Checking resources.....................................................22
Support software.........................................................22
3. External Connection ................................................23
Connecting the Interface Connector..........................23
Connector........................................................................ 24
Optional Cable DT/B2.................................................26
External Connection ...................................................... 27
Output Circuit and Connecting Example..................29
Connecting Rotary Encoder........................................... 30
Measures Against Voltages............................................ 31
4. I/O Ports and Registers............................................33
I/O Port Bit Assignment................................................. 33
Data Setting ................................................................33
Count Value Flow........................................................34
Operation Command...................................................35
Output Command........................................................... 37
Count initial value
(Commands; CH0:00h, CH1:05h, CH2:0Ah, CH3:0Fh)
......................................................................................37
Operation Mode
(Command CH0:01h, CH1:06h, CH2:0Bh, CH3:10h)
......................................................................................37
Counter Operation Mode ............................................... 40
2-phase input...............................................................40
Single-phase input......................................................40
Single-phase input with gate control.........................41
Synchronization clear.................................................42
Asynchronization clear...............................................42
Count input multiplication.........................................43
Z-phase/CLR input
(Command CH0:02h, CH1:07h, CH2:0Ch, CH3:11h)
......................................................................................44
CNT24-4(PCI) v
Comparison register
(Command CH0:03h, CH1:08h, CH2:0Dh, CH3:12h)
......................................................................................45
Digital filter
(Command CH0:04h, CH1:09h, CH2:0Eh, CH3:13h)
......................................................................................46
Latch Count value (Command 14h)...........................48
Interrupt mask (Command 15h)................................48
Sense Reset (Command 16h)......................................49
Programmable time
(Command timer data:17h, Timer start:18h)............50
Timer interrupt frequency..........................................51
One-shot pulse (Command 19h).................................52
Input Command ............................................................. 53
Read count value
(Command CH0:00h, CH1:05h, CH2:0Ah, CH3:0Fh)
......................................................................................53
Status data
(Command CH0:01h, CH1:06h, CH2:0Bh, CH3:10h)
......................................................................................54
Interrupt mask (Command 15h)................................56
Sense port (Command 16h) ........................................56
Default Setting............................................................57
5. System Reference ....................................................59
Specifications.................................................................. 59
Block Diagram................................................................ 60
6. Troubleshooting.......................................................61
QUESTIONS: ................................................................. 61
Is the pilot light on?....................................................61
Did the system boot up?..............................................61
Does your program work?...........................................61
Does the sample program work?................................61
Is the input data accurate?.........................................62
Still have a problem? ..................................................62
7. Index......................................................................65
CNT24-4(PCI)
vi
List of Figures
Figure 2.1. Component Locations ...............................................5
Figure 2.2. Board ID Settings (SW1) ..........................................6
Figure 2.3. Setting the Interrupt Use ...........................................7
Figure 2.4. Sample Programs on FD............................................9
Figure 2.5. CRT Display (CNTPCI01.C)...................................11
Figure 2.6. Flowchart (CNTPCI01.C) .......................................11
Figure 2.7. CRT Display (CNTPCI02.C)...................................12
Figure 2.8. CRT Display (CNTPCI03.C)...................................12
Figure 2.9. Flowcharts (CNTPCI03.C)......................................13
Figure 3.1. Connecting the Interface Connector........................23
Figure 3.2. CN1 Connector as Viewed from Back of Computer
................................................................................24
Figure 3.3. CN1 Pin Assignments.............................................24
Figure 3.4. CN2 Frontal View...................................................25
Figure 3.5. CN2 Pin Assignments.............................................25
Figure 3.6. Optional Cable DT/B2 ............................................26
Figure 3.7. 37-Pin D-Type Connector Pin Assignments............26
Figure 3.8. Digital Input............................................................27
Figure 3.9. Connecting to Open-collector Output Device..........27
Figure 3.10. TTL-Level Input Circuitry......................................28
Figure 3.11. Output Circuit and Connecting Example.................29
Figure 3.12. Photocoupler Input..................................................30
Figure 3.13. TTL Input ...............................................................30
Figure 3.14. Samples of Surge Voltage Protection.......................31
Figure 4.1. Output port..............................................................33
CNT24-4(PCI) vii
Figure 4.2. Input port................................................................33
Figure 4.3. Count Value Flow....................................................34
Figure 4.4. Counting Example with 2-phase Input ....................40
Figure 4.5. Single-phase Counting Example..............................40
Figure 4.6. Example of Single-phase Input with Gate Control...41
Figure 4.7. Example of Synchronization Clear..........................42
Figure 4.8. Example of Asynchronization Clear........................42
Figure 4.9. Counting Example for Multiplied Count Inputs.......43
Figure 4.10. Number of Z-phase Inputs Available ZSE=0
(Positive Logic).......................................................44
Figure 4.11. Digital Filter............................................................47
Figure 5.1. Block Diagram........................................................60
CNT24-4(PCI)
viii
List of Tables
Table 2.1. Sample's Specification...............................................10
Table 4.1. Output Command ......................................................35
Table 4.2. Input Command.........................................................36
Table 4.3. Counter Operation Mode ...........................................38
Table 4.4. Switching Counting Direction....................................39
Table 4.5. Z-phase Input Mode...................................................44
Table 4.6. Digital Filter Clock Data............................................47
Table 4.7. Relationship between programmable timer interrupt
................................................................................51
Table 4.8. Relationship Between One-shot Pulse Width Data
and Pulse Width......................................................52
Table 4.9. Default Setting...........................................................57
Table 5.1. Specifications ............................................................59
CNT24-4(PCI)
Introduction
1
1. Introduction
Thank you for purchasing the CNT24-4(PCI).
The CNT24-4(PCI) is the PCI bus compatible. This board is
plugged into a PCI bus expansion slot on the motherboard in the
personal computer or into a PCI bus unit. You should read this
manual carefully to construct your system with the board by
creating its application programs and connecting the required
external devices to the board.
Features
-One board enables 24 bit up/down counts for four channels.
-Counts two phase signals from devices like a rotary encoder or a
linear gauge.
-Photocoupler insulated input or TTL level input for each channel.
-Generates interrupts or outputs signals by matching the count
value of each channel with the value set by the user.
-Periodically generates an interrupt using an internal
programmable timer.
-Each channel has a general input signal (including photocoupler
and TTL input).
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