Contec CNT24-2(FIT)GY Owner's 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

Warranty

Certificate

Serial Number

Label

ii

CNT24-2(FIT)GY

Copyright

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

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)

ο

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.

Introduction

6

CNT24-2(FIT)GY

FCC PART 15Class A Notice

About the Manual

This manual consists of the following chapters:

Chapter 1 Introduction

Chapter 2 Module Nomenclature and Settings

Explains the nomenclature of the components of the Module and their

switch settings.

Chapter 3 Connecting to an External Device

Explains interface connectors and external I/O circuits.

Chapter 4 Using the I/O Address Map

Explains I/O port bit assignments and the definitions of the bits when

the Module is used as a CPU-SBxx(FIT)GY module.

Chapter 5 Using the Memory Address Map

Explains the module settings area, the information area, and the I/O

data area when the Module is used as a CPU-CAxx(FIT)GY module.

Chapter 6 System Reference

Explains module specifications and circuit block diagrams.

This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and

used in accordance with the instruction manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is likely to cause harmful

interference in which case the user will be required to correct the interference at his own expense.

NOTE

FCC WARNING

Changes or modifications not expressly approved by the party responsible for compliance could void

the user's authority to operate the equipment.

Module Nomenclature and Settings

CNT24-2(FIT)GY

7

Module Nomenclature and Settings

Nomenclature of Module Components

Figure 2.1. shows the names of module components. In the figure, the indicated

switch settings represent factory settings.

Figure 2.1. Names of Module Components

LED

Indicator

Device ID

I

nter

fac

e c

onne

cto

r

CNT2

4-2

D

evic

e

ID

A

B Z D1

C

H0

PC

OM

PA

PB

PZ

PD1

EQ.P

EQ

E

Q.N

0

4

0

4

6

2

5

1

3

7

PCO

M

PA

PB

PZ

PD1

EQ.P

EQ

EQ.N

C

H0

CH1

C

H1

Module Nomenclature and Settings

8

CNT24-2(FIT)GY

Setting a Device ID

The controller module distinguishes and keeps track of the modules that are connected

to it by assigning device IDs to them.

Each module, therefore, should be assigned a unique ID.

A Device ID can be assigned in a 0 - 7 range, so that a maximum of eight modules can

be distinguished.

To connect the CNT24-2(FIT)GY to the CNT24-2(USB)GY, assign a device ID

between 1 and 3.

The factory setting for the Device ID is [0].

Setup Method

A Device ID can be set by turning the rotary switch that is located on the module face.

A Device ID can be assigned by turning the switch.

Figure 2.2. Setting a Device ID (SW1)

LED Indicator

A: Turns on when a current flows from pin PA

(low level, negative logic). (green)

B: Turns on when a current flows from pin PB

(low level, negative logic. (green)

Z: Depends on the logic setting on the Z phase.

Z phase set to positive logic: turns on when pin PZ is open (high level, positive

logic). (green)

Z phase set to negative logic: turns on when a current flows from pin PZ. (low

level, negative logic).(green)

DI: turns on when a current flows from pin PD.

(low level, negative logic).(green)

Device

I

D

0

4

0

4

6

2

5

1

3

7

Default:

(Device ID = 0)

Connecting to an External Device

CNT24-2(FIT)GY

9

Connecting to an External Device

Interface Connector

How to Connect an Interface Connector

When connecting the Module to an external device, you can use the supplied

connector plug. When wiring the Module, strip off approximately 7 - 8 mm of the

covering for the cable, and insert the bare wire by pressing the orange button on the

connector plug. Releasing the orange button after the wire is inserted to fix the cable.

Compatible wires are AWG 28 - 20.

Figure 3.1. Connecting an Interface Connector and Connectors That Can

Be Used

Note!

Removing the connector plug by grasping the cable can break the wire.

Pre

ss

thi

s se

ction to insert

the

wi

re material.

7

- 8

mm

C

NT2

4-2

De

vic

e

ID

A B

Z D1

C H

P

COM

PA

PB

PZ

P

D1

E

Q.P

EQ

EQ.N

0

4

0

4

6

2

5

1

3

7

PCO

M

PA

PB

PZ

PD1

EQ.P

EQ

EQ.N

CH

C H

- Connector used:

2.5mm pitch, 9-pin type, 4.0A

no

min

al current

MC0,5/9-G-2,5 connector (ma

de by Phoenix Contact Corp.)

- A

pplicable plug:

Front-

ope

rab

le

spri

ng

gau

ge type

F

K-M

C0,

5/9-

ST-

2,5

pl

ug (

made by Phoenix Contact Crop.)

Applicable wire: AWG 28 -

20

Connecting to an External Device

10

CNT24-2(FIT)GY

Signal Layout on the Interface Connector

The Module can be connected to an external device using a 9-pin

(1 group) connector that is provided on the Module face.

Figure 3.2. Signal Layout on the Interface Connector

9

8

7

6

5

4

3

2

1

C

H0

PC

O

M

(

0

)

P

A

(0

)

P

B

(

0

)

PZ

(

0)

PD

I(

0

)

EQ

.P(

0)

E

Q(

0)

E

Q

.N

(

0

)

N.C.

P

l

u

s

co

m

o

n

f

o

r

c

ha

n

e

l

0

in

p

ut

si

gn

a

ls

Ch

an

n

el

0

ph

as

e

A

i

n

p

u

t

C

h

a

n

el

0

p

h

a

s

e

B

i

n

p

u

t

Ch

a

nn

el

0

p

h

as

e

Z

i

n

p

u

t

C

h

an

ne

l

0

g

e

ne

r

al

-p

u

rp

os

e d

igi

tal

inp

u

t

Pl

u

s

c

om

mo

n

f

or

ch

an

n

el

0

out

put

si

gnal

s

Ch

a

nn

el

0

c

ou

nt

-

ma

tc

h

o

utp

ut

M

i

n

u

s

c

o

m

mo

n

f

o

r

c

h

a

nn

e

l

0

o

u

tp

u

t

si

g

na

ls

Not

co

nnec

ted

9

8

7

6

5

4

3

2

1

C

H1

PC

OM(

1)

P

A(1)

P

B

(

1

)

P

Z(1

)

P

D

I

(

1

)

EQ

.P(

1)

EQ

(1)

E

Q.N

(1)

N.C.

Pl

u

s

co

mmon for channel 1 input signals

Channel 1 phase A input

Channel 1 phase B input

Channel 1 phase Z input

Channel 1 general-purpose digital input

Plus common for channel 1 output signals

Channel 1 count-match output

Minus common for channel 1 output signals

Not connected

Connecting to an External Device

CNT24-2(FIT)GY

11

Connecting an External Signal

Connecting to a Opto-Isolated Input Circuit

Figure 3.3. Isolated input Circuit and an Example of a Connection

Notes!

-The general-purpose input signal also has a similar circuit configuration.

-When an external power supply other than 5V is used, insert a current-limiting

resistor at position R. If PV denotes an external power supply, the current-limiting

resistor R can be calculated as follows:

For example, P = 12V will require the following resistance:

350

Ω

< R < 470

Ω

.

220Ω

Opto-coupler

Module

External circuit

Input

+5V

Plus common

External device

signal output

220Ω

Opto-coupler

Input

+12V

External device

signal output

400Ω

R

Plus common

P -

5

20

< RkΩ<

P - 5

15

Connecting to an External Device

12

CNT24-2(FIT)GY

Output Circuit and an Example Connection

When there is a match between a channel count and a specified value, a one-shot (one

pulse) match signal is output to the outside. The signal output section has an open

collector configuration based on opto-isolation. Driving the output of this module

requires an external power supply.

Figure 3.4. Connecting to an Output Circuit

Note!

A surge voltage protection circuit is not provided on the output transistors for this

Module. Therefore, when driving relays, lamps, and other induction loads using this

Module, a surge voltage countermeasure should be provided on the load side.

For a description of how to deal with surge voltages, see "Surge Voltage

Countermeasures".

Connecting to a Rotary Encoder

Figure 3.5. Connecting to a Rotary Encoder

Output

Opto-coupler

Plus

common

Minus

common

Load

External

power

supply

5V - 12VDC

Vcc

Module External circuit

CNT24-2

De

vice

ID

A B Z D1

CH

0

P

COM

PA

PB

P

Z

PD1

EQ.

P

EQ

EQ.N

6

PCOM

PA

PB

PZ

PD1

EQ.P

EQ

EQ.N

CH

0

C

H1

CH1

* A 400Ω

resistor is requi

red at position R

when used at 12

V, but not at 5V

.

Pow

er supp

ly

0V

Shield

Encoder

Phase

A

Phase B

Phase

Z

Plus c

ommo

n

R

Pin PA

Pin PB

Pin PZ

Connecting to an External Device

CNT24-2(FIT)GY

13

Surge Voltage Countermeasures

When connecting a load that generates surge voltages and inrush currents, such as an

induction load (relay coil) or an incandescent light bulb, to the one-shot pulse output,

appropriate protection must be provided in order to prevent damage to the output stage

or a malfunction due to noise. The rapid shutoff of a coil, such as a relay, generates a

sudden high-voltage pulse. If this voltage exceeds the voltage tolerance level of the

output transistor, it can cause the transistor to gradually deteriorate, or even completely

damage the transistor. Therefore, when driving an induction load, such as a relay coil,

you should always connect a surge-absorbing device. The following illustrates a surge

voltage countermeasure that can be employed:

Figure 3.6. Surge Voltage Countermeasure

Note!

In order for a protection circuit to operate effectively, it must be connected within 50

cm of a load and a contact point.

Using a relay coil

Diode

Relay coil

Using a lamp

Inrush current

prevention resistance

Dark point-lighting

bypass resistance

Zener diode

Relay coil

External supply voltage < Zener diode voltage

Connecting to an External Device

14

CNT24-2(FIT)GY

Using the I/O Address Map

CNT24-2(FIT)GY

15

Using the I/O Address Map

Starting I/O Address

When connected to the Box computer [BX-320 Series etc], the CNT24-2(FIT)GY can

directly receive I/O commands from the controller module. Depending on how the

Device ID is set, the I/O addresses indicated below will be used exclusively by the

CNT24-2(FIT)GY.

Because the address bus on which the I/O address space is specified is not fully

decoded in continued 16 bits, four starting I/O addresses exist in each Device ID.

If the Device ID is set to 0h, one of the four addresses (0800h, 0840h, 0880h, or

08C0h) will be used as a starting I/O address.

Table 4.1. List of Starting I/O Addresses

For detailed specifications on the I/O space that is controlled by the controller module,

see the controller module manual.

ID No.

0 0800h - 081Fh(recommend) 0840h - 085Fh 0880h - 089Fh 08C0h - 08DFh

1 1800h - 181Fh(recommend) 1840h - 185Fh 1880h - 189Fh 18C0h - 18DFh

2 2800h - 281Fh(recommend) 2840h - 285Fh 2880h - 289Fh 28C0h - 28DFh

3 3800h - 381Fh(recommend) 3840h - 385Fh 3880h - 389Fh 38C0h - 38DFh

4 4800h - 481Fh(recommend) 4840h - 485Fh 4880h - 489Fh 48C0h - 48DFh

5 5800h - 581Fh(recommend) 5840h - 585Fh 5880h - 589Fh 58C0h - 58DFh

6 6800h - 681Fh(recommend) 6840h - 685Fh 6880h - 689Fh 68C0h - 68DFh

7 7800h - 781Fh(recommend ) 7840h - 785Fh 7880h - 789Fh 78C0h - 78DFh

Occupied I/O address

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Contec CNT24-2(FIT)GY Owner's manual

Contec CNT24-2(FIT)GY Owner's manual

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