Contec F&eIT Series User manual

F&eIT Series
Isolated Counter Module
CNT24-2(FIT)GY
User’s Manual
CONTEC CO., LTD.

CNT24-2(FIT)GY i
Check Your Package
Thank you for purchasing the CONTEC product.
The product consists of the items listed below.
Check, with the following list, that your package is complete. If you discover
damaged or missing items, contact your retailer.
Product Configuration List
- Module …1
- First Step Guide …1
- Disk *1 [F&eIT Series Setup Disk] …1
- Interface connector plugs …2
- Warranty Certificate…1
- Serial Number Label …1
*1 The bundled disk contains various software and User’s Manual (this manual)
Interface connector plugs
Module
Disk
First step guide [F&eIT Series Setup Disk]
CN T24- 2
Devic e
ID
ABZ D1
CH0
PCOM
PA
PB
PZ
PD1
EQ.P
EQ
EQ.N
0
4
0
4
6
2
PCOM
PA
PB
PZ
PD1
EQ.P
EQ
EQ.N
CH0
CH1
CH1
Warranty
Certificate
Serial Number
Label

ii CNT24-2(FIT)GY
Copyright
Copyright 2001 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 or for results obtained by the user as a result
of using this product.
Trademarks
F&eIT is a registered trademark or trademark of CONTEC CO., LTD. Other company
and product names that are referred to in this manual are generally trademarks or
registered trade trademark.

CNT24-2(FIT)GY iii
Table of Contents
Copyright ..........................................................................ii
Trademarks.......................................................................ii
Table of Contents.............................................................iii
Introduction ........................................................................1
Features ........................................................................ 1
Functions and control method by controller connected2
Limited One-Year Warranty ........................................ 4
How to Obtain Service ................................................. 4
Liability......................................................................... 4
Handling Precautions .................................................. 5
About the Manual......................................................... 6
Module Nomenclature and Settings ...................................7
Nomenclature of Module Components ............................ 7
Setting a Device ID........................................................... 8
Setup Method................................................................ 8
LED Indicator ................................................................... 8
Connecting to an External Device ......................................9
Interface Connector .......................................................... 9
How to Connect an Interface Connector ..................... 9
Signal Layout on the Interface Connector................ 10
Connecting an External Signal...................................... 11
Connecting to a Opto-Isolated Input Circuit ............ 11
Output Circuit and an Example Connection ............ 12
Connecting to a Rotary Encoder................................ 12
Surge Voltage Countermeasures ................................... 13
Using the I/O Address Map...............................................15
Starting I/O Address....................................................... 15
List of I/O Address Maps................................................ 16
Specifications Common to F&eIT Products .................. 18
Bit Assignments for I/O Ports........................................ 20
Flow of Count Values...................................................... 21
Operation Commands..................................................... 22
Description of Input Commands.................................... 23

iv CNT24-2(FIT)GY
Reading a Count (command CH0: 00h, CH1: 05h)... 23
Status Data (command CH0: 01h, CH1: 06h) .......... 24
Interrupt Mask (command 15h) ................................ 25
Sense Port (command 16h) ........................................ 25
Description of Output Commands................................. 26
Initial Count Value (command CH0: 00h, CH1: 05h)26
Operating Mode (command CH0: 01h, CH1: 06h).... 26
Counter Operating Modes ......................................... 27
Z Phase /CLR Input (command CH0: 02h, CH1: 07h)31
Compare Register (command CH0: 03h, CH1: 08h). 32
Digital Filter (command CH0: 04h, CH1: 09h)......... 33
Count Value Latching (command 14h) ..................... 34
Interrupt Mask (command 15h) ................................ 35
Sense Reset (command 16h) ...................................... 35
Programmable Timer (command timer data: 17h,
timer start: 18h) 36
One-Shot Pulse (command 19h) ................................ 38
Initialization ................................................................... 39
Examples ........................................................................ 40
2-Phase Pulse Count (no interrupts) ........................ 40
2-Phase Pulse Count (with interrupts)..................... 43
Using the Memory Address Map ...................................... 47
Module Settings Area..................................................... 48
Module Information Area............................................... 60
Basic Input Data Area.................................................... 63
Basic Output Data Area................................................. 65
Examples ........................................................................ 66
System Reference ............................................................. 71
Block Diagram ................................................................ 71
Specifications.................................................................. 72
External Dimensions...................................................... 74

Introduction
CNT24-2(FIT)GY 1
Introduction
Congratulations on your recent purchase of an Insulator Counter Module.
The CNT24-2(FIT)GY can be constructed by connecting the stack controller to our
controller, you can connect to CNT24-2(USB)GY and add input channels. The
controllers that you can connect to are shown below.
- Box computer [BX-320 Series etc]
- I/O controller unit [CPU-CAxx Series]
As such, the CNT24-2(FIT)GY can be used for position alignment control in
combination with an encoder. The insulation between external signals and the
Controller Module permits the use of the Controller Module without compromising the
communications features of the latter.
Please read this manual carefully to create application programs and configure the
system, such as setting the switches and connecting it to external devices.
Features
-The CNT24-2(FIT)GY can perform 24-bit up and down counting covering two
channels.
-The CNT24-2(FIT)GY can count two-phase signals, such as rotary encoders and
linear gauges.
-The CNT24-2(FIT)GY is equipped with general-purpose input signals, with one point
per channel.
-A rotary switch allows you to set device IDs to help you keep track of device
numbers.
-The system incorporates a screw less connector plug that allows you to easily attach
and detach wires without using any special tools.
-Similar to other F&eIT series products, the system, in the module itself, incorporates
a 35mm DIN rail mounting mechanism as a standard item. A connection to a
controller module can be effected on a lateral, stack basis in a unique configuration,
which permits a simple, smart system configuration without the need for a
backplane board.

Introduction
2 CNT24-2(FIT)GY
Functions and control method by controller connected
The CNT24-2(FIT)GY can be connected to a variety of controllers.
Box Computer : BX-320 Series
I/O Controller Module : CPU-CAxx Series
Isolated Counter Module for USB : CNT24-2(USB)GY
I/O Controller Module with USB : CPU-CA10(USB)GY
The functions and control of the CNT24-2(FIT)GY vary with the controller to which
the CNT24-2(FIT)GY is connected.
Functions available with each controller connected
BX-320 Series
CPU-CA Series
CNT24-2(USB)GY
CPU-CA10(USB)GY
οο ο ο
ο ο ο ο
ο ο ο ο
ο ο ο ο
Digital filter
ο ο ο ο
Interrupt function
ο
Programmable timer
ο
Count match pulse output
ο ο ο
General-purpose digital input
ο ο ο ο
Device ID setting range 0 - 7 0 - 7 1 - 3 0 - 7
2-phase input; asynchronous clear; multiplication by 1/2/4
2-phase input synchronous clear, multiplication by 1/2/4
Single-phase input, asynchronous clear, multiplication by 1
Single-phase input with gate control, multiplication by 1/2

Introduction
CNT24-2(FIT)GY 3
Control method by controller connected
* The API-SBP(W32) is included in the development kit
DTK-SBxx(FIT)GY; the other drivers are bundled with each controller.
Control using the I/O address map
When connected to the box computer [BX-320 Series etc], the CNT24-2(FIT)GY can
receive I/O instructions directly from the controller module. For details, see Chapter 4
“Using the I/O Address Map”.
Control using the memory address map
When connected to the I/O controller unit [CPU-CAxx Series], the CNT24-2(FIT)GY
can be accessed from the host computer over the network.
The CNT24-2(FIT)GY is assigned with its device ID in the memory managed by the
controller module. The application running on the host computer controls the module
by reading/writing the memory managed by the controller module. For details, see
Chapter 5 “Using the Memory Address Map”.
Control via the Windows driver
For the functions and settings available when using the Windows driver, refer to the
reference manual and online help for each module.
Control over the web
You can monitor collected data and manage the log over the web. You can use your
familiar browser to easily make various settings. For details, refer to the reference
manual for the SVR-MMF2(FIT), SVR-MMF(FIT)GY.
BX-320 Series
CPU-CA Series
CNT24-2(USB)GY
CPU-CA10(USB)GY
Control using the I/O address map
ο
Control using the memory address map
ο
FIT Protocol
ο
API-CAP(W32)
ο
API-SBP(W32)
ο
API-USBP(WDM)
οο
Control over the web
Control via the Windows driver *

Introduction
4 CNT24-2(FIT)GY
Limited One-Year Warranty
CONTEC F&eIT series products are warranted by CONTEC CO., LTD. to be free
from defects in material and workmanship for up to one year from the date of purchase
by the original purchaser.
Repair will be free of charge only when this product is returned freight prepaid with a
copy of the original invoice and a Return Merchandise Authorization to the distributor
or the CONTEC group office, from which it was purchased.
This warranty is not applicable for scratches or normal wear, but only for the
electronic circuitry and original products. The warranty is not applicable if the device
has been tampered with or damaged through abuse, mistreatment, neglect, or
unreasonable use, or if the original invoice is not included, in which case repairs will
be considered beyond the warranty policy.
How to Obtain Service
For replacement or repair, return the device freight prepaid, with a copy of the original
invoice. Please obtain a Return Merchandise Authorization Number (RMA) from the
CONTEC group office where you purchased before returning any product.
* No product will be accepted by CONTEC group without the RMA number.
Liability
The obligation of the warrantor is solely to repair or replace the product. In no event will the
warrantor be liable for any incidental or consequential damages due to such defect or
consequences that arise from inexperienced usage, misuse, or malfunction of this device.

Introduction
CNT24-2(FIT)GY 5
Handling Precautions
Take the following precautions when handling this module.
-Do not modify the module. CONTEC will bear no responsibility for any problems,
etc., resulting from modifying this module.
-Do not use or store the equipment in a hot or cold place, or in a place that is subject to
severe temperature changes. (Operating temperature range: 0 - 50°C)
-Do not use or store the equipment in a place subject to direct sunlight or near a
heating device, such as a stove.
-Do not use or store the equipment in a dusty or humid place. (Operating humidity
range: 10 - 90%RH, No condensation)
-As this product contains precision electronic components, do not use or store in
environments subject to shock or vibration.
-Do not use or store the product near equipment generating a strong magnetic field or
radio waves.
-If you notice any strange odor or overheating, please unplug the power cord
immediately.
-In the event of an abnormal condition or malfunction, please consult the dealer from
whom the equipment was purchased.
-To avoid electric shock, please do not touch the system with a wet hand.
-Do not open the module casing. CONTEC will disclaim any responsibility for
equipment whose casing has been opened.
-To prevent damage, please do not subject the module to impact or bend it.
-To prevent contact malfunction, please do not touch the metallic pins on the external
module connector.
-The module contains switches that need to be properly set. Before using the module,
please check its switch settings.
-To avoid malfunction, please do not change the module switch settings in an
unauthorized manner.
-Do not operate the device module when the power for the Controller Module is on.
To avoid malfunction, please be sure to turn off the power for the Controller
Module.
-Regarding “CE EMC Directive Notice”.
Please see the “Hardware specification” to meet the mentioned standard above.