Contec CNT24-2GY Manual de usuario

PC-HELPER

Isolated 24-bit Up/Down Counter Module

for USB

CNT24-2(USB)GY

User’s Guide

CONTEC CO.,LTD.

CNT24-2(USB)GY i

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 or for results obtained by the user as a result

of using this product.

Trademarks

All company and product names that are referred to in this manual are generally

trademarks or registered trade.

ii CNT24-2(USB)GY

Product Configuration

-Module (one of the following products)

[CNT24-2(USB)GY]…1

-First step guide…1

-Disk *1 [API-USBP(WDM)]…1

-Interface connector (plugs) FK-MC0,5/9-ST-2.5…2

-AC adapter (1.5m)…1

-AC cable (1.5m)…1

-USB cable (1.8m)…1

-Rubber feet…4

-Magnet…2

-Warranty Certificate …1

-Serial Number Label …1

*1 The bundled disk contains the driver software and User’s Guide (this guide)

Check the contents to make sure that you have everything listed below. If you do

not have all the items or have any damage, contact your distributor or CONTEC

group office where you purchased.

System unit

Disk

[API-USBP(WDM)]

USB cable

Interface connector plugs

Protective Rubber

First step guide

AC adapter

AC cable

Magnet Warranty

Certificate

Serial Number

Label

CNT24-2(USB)GY iii

Table of Contents

Trademarks........................................................................ i

Product Configuration......................................................ii

Table of Contents.............................................................iii

Trademarks........................................................................ i

Product Configuration......................................................ii

Table of Contents.............................................................iii

1. Introduction .................................................................... 1

Summary........................................................................... 1

Features ........................................................................ 2

Support Software.......................................................... 5

Accessories (Option) ..................................................... 5

Customer Support ............................................................ 6

Web Site ........................................................................ 6

Limited One-Year Warranty ............................................ 6

How to Obtain Service...................................................... 7

Liability............................................................................. 7

Safety Precautions............................................................ 7

Safety Information ....................................................... 7

Handling Precautions .................................................. 8

Environment................................................................. 9

Inspection.................................................................... 10

Storage ........................................................................ 10

Disposal....................................................................... 10

2. Module Nomenclature....................................................11

Module Nomenclature .................................................... 11

3. Setup ............................................................................. 13

Connection-Overall Diagram ......................................... 13

Setting a Module ID ....................................................... 13

Setup Flow ...................................................................... 14

Software Installation...................................................... 14

Illustration of Menu Screen....................................... 14

Installation of API-USBP(WDM) Development

iv CNT24-2(USB)GY

Environment............................................................... 15

Installing the Utility.................................................. 16

Connecting to a PC......................................................... 16

Setting Properties Using Device Manager.................... 18

Connecting to an External Device................................. 19

Signal Layout ............................................................. 19

Connection Method .................................................... 20

Counting Function ......................................................... 22

Counter Operating Modes ......................................... 22

Clearing Count Value................................................. 26

Digital Filter............................................................... 28

Count-match Output.................................................. 29

Connecting an External Power Supply Such as the AC

Adapter in Self-powered Mode ...................................... 30

Installing the Module..................................................... 33

Installation Orientation............................................. 33

Mounting with magnets............................................. 34

Mounting on a DIN Rail ............................................ 35

Using Several Products of the same Model .................. 38

Setting a Module ID................................................... 38

4. Application Development ..............................................39

Reference to Online Help............................................... 39

Printing Function Reference.......................................... 39

Sample Program............................................................. 40

Distributing Developed Application .............................. 40

Utility.......................................................................... 40

5. Troubleshooting.............................................................41

Troubleshooting .............................................................. 41

Q & A............................................................................... 42

Diagnostic Program........................................................ 44

Version Upgrade ............................................................. 45

How to Upgrade the Firmware.................................. 45

Returning to Initial State .............................................. 47

6. Connecting with Expansion Accessories .......................49

Setting a Device ID ........................................................ 50

Connection between Modules ........................................ 51

CNT24-2(USB)GY v

Stack Connection Locking Devices............................ 51

How the Stack Connection Locking Device Works... 52

Connecting the Module .............................................. 53

Removing the Module................................................. 54

7. Product Specification .................................................... 55

Hardware Specification .................................................. 55

Software Specification.................................................... 58

Circuit Block Diagram.................................................... 59

Physical Dimensions ...................................................... 60

External Input and Output Circuit ........................... 61

Protection Circuit Introduction ..................................... 63

Surge Voltage Countermeasures ............................... 63

8. Appendix ....................................................................... 65

Glossary........................................................................... 65

vi CNT24-2(USB)GY

1. Introduction

CNT24-2(USB)GY 1

1. Introduction

Summary

Before, the measurement and control was realized by way of inserting PCI interface

boards into expansion slots of a desktop computer in case of configuring system using

computers. However, because of the limit on number of expansion slots, it is difficult

to configure system sometimes, or it is difficult to perform the same measure and

control as PCI interface boards for a note PC. The USB module can be used to resolve

that kind of problems.

CNT24-2(USB)GY is compact isolated up-down counter module which is applied to

USB and can be used easily.

It not only counts high-speed pulses but also can be used for position alignment

control in combination with an encoder. In addition, external electric do not have

direct effect on the host computer because of the isolation between control external

signals and the CPU of the controller module by Optocoupler.

Now serviceable with USB-compatible PCs, this module is best suited for use with

notebook PCs with no PCI bus expansion slot.

When using it on a desktop computer, you can perform simple connection without the

need for opening the host cover.

Corresponding to USB

Desktop Computer

Note PC

Easy to setup

Simple on utilization

1. Introduction

2 CNT24-2(USB)GY

Being connected with USB port, the module can be setup simply. In addition, it can

be used immediately owing to the supplied Windows development environment and

Utility.

The communication in Full Speed (12Mbps) is added to this USB module, and which

is compatible with High Speed (480Mbps). High Speed is namely High-Speed data

communication which is additional definition in the specification of USB2.0. The

host controller performs communication in 480Mbps when corresponding to High

Speed of USB2.0. Comparing with communication in Full Speed, the response for

module access as communication in High Speed improves.

Features

Support various kinks of counter modes

The count method supports single-

phase input, 2-phase input and single-

phase input with gate control.

Because it can be connected with a

rotary encoder, using it can easily

perform the position detection and

revolution speed measurement.

- Single-phase input

It can be used to keep track of the number of good products and inferior products on a product

examination line.

- 2-phase input

It can be used to measure moving distance and to detect position. Detailed control can be

effected by setting the count input multiplier to 2 or 4.

- Single-phase input with gate control

Because the pulse count time can be controlled via external signal, it is very convenient to use the

module to measure the revolution speed.

Digital filter

The digital filter which is designed to cut the chattering of input pulse signal has been installed.

The allowable range of the sampling cycle is 0.1 - 1056.1µsec.

1. Introduction

CNT24-2(USB)GY 3

Count-match output

Once the count comparison value has been set, the module will output a signal to external when there

is a match between a count value and a count comparison value. The allowable setting range of the

output signal width is 0 - 104.5ms.

Isolated from external device

Because the isolation between the CPU and the external device is made by Optocoupler, the change

of external circuit will not affect the computer by USB port.

(There is not external electric effect on the host computer by way of USB ports because of the

isolation between the CPU of the module and external device by Optocoupler.)

Easy to wire

The system incorporates a screwless connector

plug that allows you to easily attach and detach

wires without using any special tools.

Easy-to-install design

The system, in the module itself, incorporates a

35mm DIN rail mounting mechanism as a standard

item, so it can be attached and detached easily.

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