Contec CNT24-4D(PCI) User manual

CNT24-4D(PCI)
24Bit Differencial Up/Down Counter Board
for PCI
User’s Guide

CNT24-4D(PCI) i
Copyright
Copyright 2000 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.

CNT24-4D(PCI)ii
Product Configuration
-CNT24-4D(PCI) Board…1
-CNT24-4D(PCI) SETUP DISK (3.5inch/1.44MB) …1
-User’s Guide (this booklet)…1
Unpacking:
This board 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.

CNT24-4D(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
Handling Precautions...................................................3
About the Manual.........................................................4
2. Component Locations and Setting..............................5
Component Locations........................................................5
Setting the Board ID.........................................................6
Setting Procedure .........................................................6
Setting One-shot Pulse Output Signals...........................7
Setting Terminators..........................................................8
3. Board Setup ............................................................. 9
Use CONTEC Windows Software Products.....................9
When Not Using CONTEC Software for Windows .......10
For Windows 98 Systems............................................10
For Windows 95 Systems............................................14
For other OS systems .................................................19
4. Connection with External Devices............................ 21
Interface Connector.........................................................21
Connecting the Interface Connector..........................21
Interface-Connector Signal Assignment....................22
PCB96WS and CCB-96 Signal Assignment ..............23
Connection of External Signals......................................24
Line Receiver Input Circuit and an Example
Connection...................................................................24

CNT24-4D(PCI)iv
TTL-level Input Circuit
and an Example Connection ......................................25
Output Circuit and an Example Connection.............25
Example Connection with a Rotary Encoder.................27
Measures against Voltage Surges ..................................28
5. I/O Port Bit Assignment .......................................... 29
I/O Port Bit Assignment .................................................29
Setting Data................................................................30
Count Flow......................................................................31
Operation Commands.....................................................32
Description of Output Commands..................................34
Initial Count Value (Command CH0:00H:, CH1:05H:,
CH2:0AH:, CH3:0FH).................................................34
Operation Mode (Command CH0:01H:, CH1:06H:,
CH2:0BH:, CH3:10H) .................................................34
Each Counter Operating Mode ..................................36
Phase Z/CLR Input (Command CH0:02H, CH1:07H,
CH2:0CH, CH3:11H)...................................................40
Compare Register (Command CH0:03H, CH1:08H,
CH2:0DH, CH3:12H)..................................................41
Digital Filter (Command CH0:04H, CH1:09H,
CH2:0EH, CH3:13H) ..................................................42
Count Value Latch (Command 14H)..........................43
Interrupt Mask (Command 15H)...............................44
Sense Reset (Command 16H).....................................44
Programmable Timer (Command timer data:17H,
Timer start:18H).........................................................45
One-shot Pulse (Command 19H)................................46
General-purpose Input Signal Select
(Command 1AH) .........................................................48
Description of Input Commands ....................................49
Count Read (Command CH0:00H, CH1:05H,
CH2:0AH, CH3:0FH)..................................................49
Status Data (Command CH0:01H, CH1:06H,
CH2:0BH, CH3:10H) ..................................................49
Interrupt Mask (Command 15H)...............................51

CNT24-4D(PCI) v
Sense Port (Command 16H).......................................51
General-purse Input Signal Select
(Command 1AH) .........................................................52
Initialization....................................................................53
6. Board Specifications................................................ 55
Block Diagram.................................................................55
Specifications...................................................................56
7. Index ..................................................................... 59

CNT24-4D(PCI)vi
List of Figures
Figure 2.1. Component Locations............................................... 5
Figure 2.2. Board ID Settings (SW1).......................................... 6
Figure 2.3. Switch for setting one-shot-pulse output signals....... 7
Figure 2.4. Terminator setting switches...................................... 8
Figure 4.1. Connecting the interface connector ........................ 21
Figure 4.2. Connectors in use................................................... 21
Figure 4.3. Interface-connector signal assignment.................... 22
Figure 4.4. PCB96WS and CCB-96 signal assignment............. 23
Figure 4.5. Line-receiver input circuit
and an example connection..................................... 24
Figure 4.6. TTL-level input circuit and an example connection 25
Figure 4.7. Open-collector output circuit and an example
connection.............................................................. 26
Figure 4.8. TTL-level output circuit and an example connection26
Figure 4.9. Example connection with a rotary encoder
(Line receiver input)............................................... 27
Figure 4.10. Example connection with a rotary encoder
(TTL input)............................................................ 27
Figure 4.11. Example measures against voltage surges............... 28
Figure 5.1. Output port............................................................. 29
Figure 5.2. Input port ............................................................... 29
Figure 5.3. Count flow.............................................................. 31
Figure 5.4. Example counting during 2-phase input.................. 36
Figure 5.5. Example counting during single-phase input .......... 36
Figure 5.6. Example counting during single-phase input
with gate control attached....................................... 37

CNT24-4D(PCI) vii
Figure 5.7. Example counting during synchronous clear .......... 37
Figure 5.8. Example counting during asynchronous clear......... 38
Figure 5.9. Example counting when count input multiplication
is set....................................................................... 39
Figure 5.10. Phase Z enable frequency ZSEL=0
(Positive logic) ....................................................... 40
Figure 5.11. Digital filter............................................................ 42
Figure 6.1. Block Diagram....................................................... 55

CNT24-4D(PCI)viii
List of Tables
Table 2.1. One-shot-pulse output signal settings.......................... 7
Table 2.2. Terminator settings...................................................... 8
Table 5.1. Output commands..................................................... 32
Table 5.2. Input commands........................................................ 33
Table 5.3. Counter operation modes .......................................... 35
Table 5.4. Switching counting directions................................... 35
Table 5.5. Phase Z input mode................................................... 40
Table 5.6. Digital filter clock settings........................................ 43
Table 5.7. Relationship between programmable timer setting data
and timer interrupt cycles.......................................... 46
Table 5.8. Relationship between specified one-shot-pulse width
data and pulse widths................................................ 47
Table 5.9. Initialized state.......................................................... 53
Table 6.1. Specifications............................................................ 56

Introduction
CNT24-4D(PCI) 1
1. Introduction
Thank you for purchasing the CONTEC CNT24-4D(PCI).
The CNT24-4D(PCI) is a PCI bus-compliant interface that counts
digital signals from an external device. This board should be
inserted into a PC's PCI bus slot or PCI bus unit.
Read this guide thoroughly before you build a system including
creation of application programs and connection with external
devices.
Support software sold separately
-Driver Software Package (Option) API-PAC(W32)
Please follow the setup instructions of the User’s manual shipped
with the software products and/or the help files of the package to
setup our interface board(s) to your system.
For details of CONTEC software products, please contact our sales
agencies.
Features
-The PCI bus-compliant interface board can be used with the PC-
98 series or PC-AT (DOS/V machines) equipped with a PCI bus
expansion slot.
-This single board can count up and down 24 bits for four
channels.
-The board can count two-phase signals of a rotary encoder or
linear gauge, for example.
-The board allows you to select a photocoupler insulated input or
TTL-level input for each channel.
-The board can either generate interrupts or output signals when a
count of each channel matches any specified value.
-The board is equipped with a programmable timer to allow
interrupts to be generated periodically according to a specified
timer value.
-The board is equipped with one general-purpose input signal for
each channel (both photocoupler and TTL).