Omron SYSMAC C200H-CT001-V1, SYSMAC C200H-CT002-V1 Operation Manual

Download

Cat.No. W141–E1–4

SYSMAC C200H-CT001-V1/CT002

High-speed Counter Units

OPERATION MANUAL

C200H-CT001-V1/CT002 High-speed Counter Units

Operation Manual

Revised September 2000

Notice:

OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual.

The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property.

DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or

serious injury.

WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or

serious injury.

Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or

moderate injury, or property damage.

OMRON Product References

All OMRON products are capitalized in this manual. The word “Unit” is also capitalized when it refers to an OMRON product, regardless of whether or not it appears in the proper name of the product.

The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means “word” and is abbreviated “Wd” in documentation in this sense.

The abbreviation “PC” means Programmable Controller and is not used as an abbreviation for anything else.

Visual Aids

The following headings appear in the left column of the manual to help you locate different types of information.

 OMRON, 1990

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of OMRON.

No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication.

Note Indicates information of particular interest for efficient and convenient operation

of the product.

1, 2, 3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.

PRECAUTIONS xi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Intended Audience xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 General Precautions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Safety Precautions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Operating Environment Precautions xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Application Precautions xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 1

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

1-1 Introduction 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2 Nomenclature 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3 System Configuration 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4 Operating Modes 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2

Switch Settings and Wiring 7. . . . . . . . . . . . . . . . . . . . . . . .

2-1 Switch Settings 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2 Wiring 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3 Input Circuit Wiring Examples 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4 Dimensions 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3

Operation 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1 Operational Flow 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 Input Selection 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3 Counter Reset Conditions 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 Data Transfer Timing 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4

Data Allocation and Operating Modes 33. . . . . . . . . . . . . . .

4-1 Data Configuration and Allocation 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2 Linear and Circular Modes 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3 Preset Mode 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4 Gate, Latch, and Sampling Modes 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 5

Error Processing 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-1 Error Indications 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2 Troubleshooting from the PC 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendices

A Error Codes 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B Specifications 85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C IR Area Allocations 89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D DM Area Coding Sheets 91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index 93. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Revision History 97. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vii

About this Manual:

This manual covers specifications and procedures necessary for the installation and operation of the C200H-CT001-V1 and C200H-CT002 High-speed Counter Units. It includes example system configurations to ease the implementation cycle. The C200H-CT001-V1 and C200H-CT002 are Special I/O Units for C200H PCs. The C200H-CT001-V1 is a high-speed, reversible counter capable of counting at a maximum of 50 kcps. The C200H-CT002 is a high-speed, reversible counter capable of counting at a maximum of 75 kcps.

Please read this manual carefully and be sure you understand the information provided before attempting to install and operate the C200H-CT001-V1 and C200H-CT002 High-speed Counter Units.

Section 1 contains a brief description of the Units and how they can be used. The Units are displayed and their indicators are explained. An example system configuration is included to demonstrate Unit application. The operating modes and their associated ranges of operation are also described.

Section 2 shows the Unit settings and connector cable pin specifications. Instructions for the construction of input and output connectors are provided. Electrical schematics and examples are presented to further explain Unit operation.

Section 3 describes the operational flow of the counting system. The input types are identified along with instructions for their use. Data transfer timing is described in relation to the PC cycle time.

Section 4 describes the various operating modes in detail. Each mode is described by data allocation, timing charts, commands, flags, and examples. Data formats are explained.

Section 5 presents possible errors and solutions and describes how to handle errors from the PC. The AR area Error and Restart Flags are described.

The following Appendices are also provided: Error Codes, Specifications, IR Area Allocations, and DM Area Coding Sheets.

WARNING Failure to read and understand the information provided in this manual may result in

personal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.

PRECAUTIONS

This section provides general precautions for using C200H-CT001-V1/CT002 High-speed Counter Units and related devices.

The information contained in this section is important for the safe and reliable application of the C200HCT001-V1/CT002 High-speed Counter Units. You must read this section and understand the information contained before attempting to set up or operate a C200H-CT001-V1/CT002 High-speed Counter Unit.

1 Intended Audience xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 General Precautions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Safety Precautions xii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Operating Environment Precautions xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Application Precautions xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Intended Audience

This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).

• Personnel in charge of installing FA systems.

• Personnel in charge of designing FA systems.

• Personnel in charge of managing FA systems and facilities.

2 General Precautions

The user must operate the product according to the performance specifications described in the relevant manuals.

Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines, and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative.

Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms.

This manual provides information for programming and operating the Unit. Be sure to read this manual before attempting to use the Unit and keep this manual close at hand for reference during operation.

3Safety Precautions

WARNING It is extremely important that a PC and all PC Units be used for the specified

purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a PC system to the above-mentioned applications.

3 Safety Precautions

WARNING Do not attempt to take any Unit apart while the power is being supplied. Doing so

may result in electric shock.

WARNING Do not touch any of the terminals or terminal blocks while the power is being

supplied. Doing so may result in electric shock.

WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so

may result in malfunction, fire, or electric shock.

xii

4 Operating Environment Precautions

Caution Do not operate the control system in the following locations:

• Locations subject to direct sunlight.

• Locations subject to temperatures or humidity outside the range specified in

the specifications.

• Locations subject to condensation as the result of severe changes in temperature.

• Locations subject to corrosive or flammable gases.

• Locations subject to dust (especially iron dust) or salts.

• Locations subject to exposure to water, oil, or chemicals.

• Locations subject to shock or vibration.

Caution Take appropriate and sufficient countermeasures when installing systems in the

following locations:

• Locations subject to static electricity or other forms of noise.

• Locations subject to strong electromagnetic fields.

• Locations subject to possible exposure to radioactivity.

• Locations close to power supplies.

5Application Precautions

Caution The operating environment of the PC system can have a large effect on the lon-

gevity and reliability of the system. Improper operating environments can lead to malfunction, failure, and other unforeseeable problems with the PC system. Be sure that the operating environment is within the specified conditions at installation and remains within the specified conditions during the life of the system.

5 Application Precautions

Observe the following precautions when using the PC system.

WARNING Always heed these precautions. Failure to abide by the following precautions

could lead to serious or possibly fatal injury.

• Always ground the system to 100 Ω or less when installing the Units. Not connecting to a ground of 100 Ω or less may result in electric shock.

• Always turn OFF the power supply to the PC before attempting any of the following. Not turning OFF the power supply may result in malfunction or electric shock.

• Mounting or dismounting Power Supply Units, I/O Units, CPU Units, Memory Units, or any other Units.

• Assembling the Units.

• Setting DIP switches or rotary switches.

• Connecting cables or wiring the system.

• Connecting or disconnecting the connectors.

Caution Failure to abide by the following precautions could lead to faulty operation of the

PC or the system, or could damage the PC or PC Units. Always heed these precautions.

• Fail-safe measures must be taken by the customer to ensure safety in the event of incorrect, missing, or abnormal signals caused by broken signal lines, momentary power interruptions, or other causes.

xiii

• Interlock circuits, limit circuits, and similar safety measures in external circuits (i.e., not in the Programmable Controller) must be provided by the customer.

• Always use the power supply voltages specified in this manual. An incorrect voltage may result in malfunction or burning.

• Take appropriate measures to ensure that the specified power with the rated voltage and frequency is supplied. Be particularly careful in places where the power supply is unstable. An incorrect power supply may result in malfunction.

• Install external breakers and take other safety measures against short-circuiting in external wiring. Insufficient safety measures against short-circuiting may result in burning.

• Do not apply voltages to the Input Units in excess of the rated input voltage. Excess voltages may result in burning.

• Do not apply voltages or connect loads to the Output Units in excess of the maximum switching capacity. Excess voltage or loads may result in burning.

• Disconnect the functional ground terminal when performing withstand voltage tests. Not disconnecting the functional ground terminal may result in burning.

• Be sure that all the mounting screws, terminal screws, and cable connector screws are tightened to the torque specified in this manual. Incorrect tightening torque may result in malfunction.

• Leave the label attached to the Unit when wiring. Removing the label may result in malfunction if foreign matter enters the Unit.

• Remove the label after the completion of wiring to ensure proper heat dissipation. Leaving the label attached may result in malfunction.

• Double-check all wiring and switch settings before turning ON the power supply. Incorrect wiring may result in burning.

• Wire correctly. Incorrect wiring may result in burning.

• Mount Units only after checking terminal blocks and connectors completely.

• Be sure that the terminal blocks, Memory Units, expansion cables, and other

items with locking devices are properly locked into place. Improper locking may result in malfunction.

• Check the user program for proper execution before actually running it on the Unit. Not checking the program may result in an unexpected operation.

• Confirm that no adverse effect will occur in the system before attempting any of the following. Not doing so may result in an unexpected operation.

• Changing the operating mode of the PC.

• Force-setting/force-resetting any bit in memory.

• Changing the present value of any word or any set value in memory.

• Resume operation only after transferring to the new CPU Unit the contents of

the DM Area, HR Area, and other data required for resuming operation. Not doing so may result in an unexpected operation.

• Do not pull on the cables or bend the cables beyond their natural limit. Doing either of these may break the cables.

• Do not place objects on top of the cables or other wiring lines. Doing so may break the cables.

• Use crimp terminals for wiring. Do not connect bare stranded wires directly to terminals. Connection of bare stranded wires may result in burning.

• When replacing parts, be sure to confirm that the rating of a new part is correct. Not doing so may result in malfunction or burning.

• Before touching a Unit, be sure to first touch a grounded metallic object in order to discharge any static built-up. Not doing so may result in malfunction or damage.

5Application Precautions

xiv

SECTION 1

Introduction

This section introduces the High-speed Counter Unit. It starts by describing Unit nomenclature and then describes the type of system the Units are generally incorporated it. This section ends with an introduction to the six operating modes, which are described in more detail in Section 4.

1-1 Introduction 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2 Nomenclature 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3 System Configuration 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4 Operating Modes 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Nomenclature Section 1-2

1-1 Introduction

The C200H-CT001-V1 and C200H-CT002 are Special I/O Units for C200H PCs. The C200H-CT001-V1 can be connected directly to an incremental encoder with an open-collector output or source output to function as a high-speed, reversible counter capable of counting at a maximum of 50 kcps.

The C200H-CT002 can be connected directly to an incremental encoder with an RS-422 line driver output or through an Encoder Adapter to an incremental encoder with a open-collector output to function as a high-speed, reversible counter capable of counting at a maximum of 75 kcps.

The C200H-CT002 is more resistive to noise than the C200H-CT001-V1 and should be used wherever excessive cable length or a noise-prone environment is anticipated. Unless otherwise specified, all information presented applies to both High-Speed Counter Units. Both the High-Speed Counter Units are referred to generically as the Counter Unit.

1-2 Nomenclature

The nomenclature is the same for both the C200H-CT001-V1 and the C200HCT002. The C200H-CT001-V1 is shown below.

Indicators

Unit number switch (“Machine No.”)

Operating mode switch

I/O Connector Connect to the input device(s) and to any outputs used. Attach the enclosed connector to the proper cable(s).

Indicator Function

RUN Lit during normal operation or when waiting for input.

Goes out for errors.

A Lit when input A is ON. B Lit when input B is ON. 1 Lit when control input IN1 is ON. 2 Lit when control input IN2 is ON. ERR Lit when an error has occurred. 0 to 7 Lit when corresponding output is ON.

System Configuration Section 1-3

1-3 System Configuration

Example Configuration The following example system configuration uses the Counter Unit to deter-

mine whether or not product length is acceptable. The length of the products passing by on the conveyor is measured by using the output from a photoelectric switch to initiate and end counting of pulses output from an encoder. Product length is checked against standards and the product is ejected if it is out of the acceptable range.

Electromagnetic solenoid (for ejecting defective products)

C200H-OA221 Output Unit

Photoelectric switch (for detecting products)

Counter Unit

SYSMAC C200H

An encoder adapter is required if the C200H-CT002 is used with an open-collector encoder.

Encoder adapter

Encoder (for detecting conveyor movement

ConveyorMotor

Many other applications are possible by combining other types of inputs and outputs. Refer to Section 4 Data Allocation and Operating Modes for other application examples.

Maximum number of Special I/O Units per PC

A maximum of 10 Special I/O Units, including Position Control Units, Counter Units, etc., can be mounted under the same PC, regardless of whether they are on the CPU Rack, the Expansion I/O Rack, or the rack containing a Remote I/O Slave Unit controlled by the PC. No more than four of these can be mounted onto any one rack containing a Remote I/O Slave Unit.

Mounting Location The Counter Unit can be mounted to any but the 2 rightmost CPU Rack slots.

Mounting the Counter Unit to either of these slots will prevent you from mounting devices directly to the PC’s CPU. The back panel DIP switch must be set before the Counter Unit is mounted. (Refer to 2-1 Switch Settings.)

Operating Modes Section 1-4

1-4 Operating Modes

The Counter Unit can be operated in any one of the six operating modes described below. External outputs are available in only 3 modes: linear, circular, and preset. The function of these outputs depends on the mode. (The mode is selected using the mode selector on the front panel of the Counter Unit, as described in 2-1 Switch Settings.) The following is merely an introduction to the op- erating modes, all of which are covered in detail in Section 4 Data Allocation and Operating Modes.

Linear Mode In linear mode, the counter value is incremented and decremented between

–8,388,608 and 8,388,607 and is continually compared with preset ranges. When the counter value is within a range (or ranges), specified outputs are

turned ON. The same output may be specified for one or more overlapping ranges, in which case the output will be turned ON whenever the counter value i s within one or more of the ranges.

A maximum of 16 ranges may be specified, each with upper and lower limits. These limits must be within the counter range, i.e., between –8,388,608 and

8,388,607. Data can be transferred from the PC to change range limits or to set the present counter value as desired.

Circular Mode In circular mode, the counter value restarts from zero after reaching a preset

maximum value or returns to the preset maximum value when the counter value is decremented past zero. In all other respects, including data transfer, circular mode functions exactly as the linear mode. The preset maximum value must be between 0 and 65,535.

Preset Mode In preset mode, the counter value is normally decremented from a preset

value (between 1 and 8,388,607) to zero, although it can also be incremented. During this decrement phase, a total of 3 outputs may be switched ON and OFF according to ON/OFF counter values. When the counter value reaches zero, a total of 4 outputs may be turned ON, either indefinitely or for a preset time, T. Data can be transferred from the PC to change ON/OFF counter values as desired.

Gate Mode Two types of gate mode operation are available on the C200H-CT002: nor-

mal and cumulative. Only the normal type is available on the C200HCT001-V1. In normal gate mode, pulses are counted while control input IN1 (the count signal) is ON. The counter value is retained when input IN1 goes OFF until input IN1 goes ON again, at which point counting restarts from zero. In the cumulative type, control input IN1 serves as the reset signal and counting continues while control input IN2 (the count signal) is ON. Each time input IN2 is turned ON, counting continues from the current counter value until it is reset to zero by input IN1. In either type of gate mode, the counting range is between –8,388,608 and 8,388,607 and counting may be in either direction. This mode does not support data transfer or external outputs from the Counter Unit.

Latch Mode In latch mode, counting begins from zero when control input IN1 (count sig-

nal) is turned ON and ranges between –8,388,608 and 8,388,607. Pulses are counted continuously (regardless of whether input IN1 is ON or OFF) , but the current counter value is always the counter value latched the last time control input IN2 (the latch signal) was turned ON, i.e., the current counter value remains unchanged while the latch signal (control input IN2) is ON and is updated to the actual count while the latch signal is OFF. Counting may be restarted from zero at any time be activating control input IN1. Control inputs

Operating Modes Section 1-4

IN1 and IN2 may originate either externally or internally. This mode does not support external outputs from the Counter Unit or data transfer.

Sampling Mode In sampling mode, pulses are counted for a preset interval after control input

IN1 (the count signal) is turned ON. Counting may be in either direction. Counting always begins at zero and ranges between –8,388,608 and

8,388,607. The time interval must be between 10 and 9,999 ms. Control input IN1 may originate either externally or internally. This mode does

not support external outputs from the Counter Unit or data transfer.

SECTION 2

Switch Settings and Wiring

This section provides the Unit settings and connector cable pin specifications. Instructions for the construction of input and output connectors are provided. Electrical schematics and examples are presented to further explain Unit operation.

2-1 Switch Settings 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2 Wiring 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3 Input Circuit Wiring Examples 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3-1 C200H-CT001-V1 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3-2 C200H-CT002 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4 Dimensions 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Switch Settings Section 2-1

2-1 Switch Settings

Always turn off the Counter Unit before setting the unit number and mode selectors. Use a regular screwdriver , being careful not to damage the slot in the screw. Be sure not to leave a selector midway between settings.

Front Panel DIP Switch

Switch name Function

Unit no. Used to set the unit number. Unit numbers run from 0 through

9 and are the same for all Special I/O Units, i.e. unit number 0 may be assigned to a Position Control Unit; unit number 1, to a High-speed Counter Unit; etc. Do not set the same number for more than one Special I/O Unit.

Mode Used to set the operating mode. Modes run from 1 through 6,

as follows: 1: Linear 2: Circular 3: Preset 4: Gate 5: Latch 6: Sampling

Switch Settings Section 2-1

Back Panel DIP Switch

12345678

Input Selection

Pins 1 through 3 are used to select the type of inputs for inputs A and B.

1 2 3 Input type

OFF OFF OFF

Offset phases

OFF

Up and down pulses

OFF OFF

OFF

This switch must be set before the Counter Unit is mounted. It is not necessary to set all the pins for all operating modes. Refer to 3-2 Input Selection and Section 4 Data Allocation and Operating Modes for operational details.

Internal Reset Bit

8 Function

Normal

OFF Reset bit inoperative

ON Reset bit effective on rising edge.

This setting is effective only for operating modes 1,2, and 3.

ONON

Pulse and direction

For Operating Mode 1 or 2: Input Z

4 5 Function

OFF Input Z inoperative*

OFFON

For Operating Mode 3: Start Input

4 5 Function

OFF

Input Z effective on falling edge.

ONON

Input Z effective on rising edge.

Start on START command

(IR n, bit 00).

*ON

Start on control input IN2.

Control Input IN1

6 7 Function

OFF Control input IN1 inoperative*

OFFON

This setting is effective only for operating modes 1,2, and 3. In modes 4, 5, and 6, control inputs IN1 and IN2 are always effective on their rising edges

Control input IN1 effective on falling edge.

Control input IN1 effective on

ONON

rising edge.

*Pins marked with asterisks are not used.

Wiring Section 2-2

2-2 Wiring

Connector Pin Arrangement

C200H-CT001-V1

Names of inputs and outputs and the pin arrangement of the connector are shown below (as viewed from the front). The connector is a Fujitsu FCN-361J040 (solder type), and is included with the Counter Unit.

Row B Pin no. Row A

Input A: 24 VDC 20 Input A: 12 VDC Input A: 0 V 19 Input A: 5 VDC Input B: 24 VDC 18 Input B: 12 VDC Input B: 0 V 17 Input B: 5 VDC Input Z: 24 VDC 16 Input Z: 12 VDC Input Z: 0 V 15 Input Z: 5 VDC

14 13 Control input IN1: 12/24 VDC

Control input IN1: 0 V 12 Control input IN1: 5 VDC

11 Control input IN2: 12/24 VDC

Control input IN2: 0 V 10 Control input IN2: 5 VDC

Outputs 0 through 3 Power supply: 5 to 24 VDC

Outputs 0 through 3, COM: 0 V 6 Output 2

Outputs 4 through 7 Power supply: 5 to 24 VDC

Outputs 4 through 7, COM: 0 V 2 Output 6

8 Output 0

7 Output 1

5 Output 3 4 Output 4

3 Output 5

1 Output 7

Wiring Section 2-2

C200H-CT002

Row B Pin no. Row A

Input A: neg. 19 Input A: pos.

Input B: neg. 17 Input B: pos.

Input Z: neg. 15 Input Z: pos.

14 13 Control input IN1: 12/24 VDC

Control input IN1: 0 V 12 Control input IN1: 5 VDC

11 Control input IN2: 12/24 VDC

Control input IN2: 0 V 10 Control input IN2: 5 VDC

Outputs 0 through 3 Power supply: 5 to 24 VDC

Outputs 0 through 3, COM: 0 V 6 Output 2

Outputs 4 through 7 Power supply: 5 to 24 VDC

Outputs 4 through 7, COM: 0 V 2 Output 6

8 Output 0

7 Output 1

5 Output 3 4 Output 4

3 Output 5

1 Output 7

Wiring Connectors Solder-type connectors are included with the Counter Unit.

Use wire with a cross-sectional area of 0.3 mm

or less. When soldering, do not short-circuit an adjacent terminal; cover the soldered section with an insulation tube. When using multicore cable, wire output and input cables separately.

Wire Insulation tube

Connector

Wiring Section 2-2

Differentiating Cables and Connector Pin Numbers

Input and output cables can be differentiated by position, as shown on the right below. Alignment with the connector pin numbers is also as shown on the left below. Please make sure you are wiring to the correct pins.

Shape of connector on the reverse side.

Pin number marks

Connector pins as viewed from the solder side.

Assembling Connectors Assemble connectors as shown below.

Round head screw (8mm M2, two total)

Nut (M2, four total)

Input cables

Output cables

Round head screw (10mm M2, two total)

Case

Connector

Lock screw

Note Any of the following connectors can be used as required by operating condi-

tions. The jack is a Fujitsu model 360.

1, 2, 3... 1. FCN-361J040 (solder-type, included with Counter Unit)

FCN-360C040-B (connector cover)

2. FCN-363J040 (crimp type, housing)

FCN-363J-AU (connector) FCN-360C040 (connector cover)

3. FCN-367J040-A V/F (crimp type)

Wiring Precautions For the C200H-CT001-V1, the terminals that are used depend upon the pow-

er supply of inputs A, B, and Z. For the C200H-CT002, inputs A, B, and Z must be line driver inputs

(Am26LS31-compatible). Positive and negative terminals must be wired correctly. The terminals that are used depend upon the power supply of the control inputs. Be careful to connect to the correct terminals. Supply only one voltage for

Wiring Section 2-2

each input. The terminals for output power supply , 5 t o 2 4 VDC and COM (0 V), are separated into two: those for outputs 0 through 7. These are not interconnected internally. If the 5 to 24 VDC and COM (0 V) terminals for the output power supply are connected incorrectly, an internal fuse will burn out, preventing operation. This fuse is not user serviceable. This fuse will also burn out if the output current exceeds 0.5 A/common, again preventing operation. When wiring inputs A, B, and Z, the following measures must be taken to prevent interference from noise:

1, 2, 3... 1. Use shielded twisted pair cable and ground the shield.

2. Keep wiring as short as possible and do not place lines parallel to pos-

sible sources of noise, such as power lines.

3. Use a stabilized power supply that is independent from other input and

output power supplies.

The external power supply must be greater than or equal to the load power supply. (An error may occur if the external power supply is less than the load power supply .) I n the example on the following page, E1 must be greater than or equal to E2.

5 to 24 VDC

Output 0

D r i v e c i rc u i t

Output 1

Output 2

Output 3

Fuse COM

0.5A (0 V)

Counter Unit

Relay

Variable

resistors

E1 0 V

E2 0 V

Input and Output Circuits Actual pin numbers are arranged in order from the top of the connector start-

ing with A20 and B20. For each input, connect the 0-V terminal and only one of the other terminals, i.e., do not supply more than one voltage for any input. The circuits are shown on the following pages.

Wiring Section 2-2

C200H-CT001-V1 Input Circuits

1.6 kΩ

B20...... Input A: 24 VDC

560 Ω

A20...... Input A: 12 VDC

A19...... Input A: 5 VDC

Rectifier

B19...... Input A: 0 V

1.6 kΩ

B18...... Input B: 24 VDC

560 Ω

A18...... Input B: 12 VDC

A17...... Input B: 5 VDC

Rectifier

B17...... Input B: 0 V

1.6 kΩ

B16...... Input Z: 24 VDC

560 Ω

A16...... Input Z: 12 VDC

A15...... Input Z: 5 VDC

Rectifier

B15...... Input Z: 0 V

Filter

1.3 kΩ

A13......

A12......

B12......

A11......

A10......

B10......

Control input IN1: 12/24 VDC

Control input IN1: 5 VDC

Control input IN1: 0 V

Control input IN1: 12/24 VDC

Control input IN1: 5 VDC

Control input IN1: 0 V

Wiring Section 2-2

C200H-CT001-V1 Output Circuits

B8......Output power

supply: 5 to 24 VDC

A8......Output 0

A7......Output 1

A6......Output 2

Fuse

0.5 A

Fuse

0.5 A

A5......Output 3

B6......Output COM: 0 V

B4......Output power

supply: 5 to 24 VDC

A4......Output 4

A3......Output 5

A2......Output 6

A1......Output 7

B2......Output COM: 0 V

Wiring Section 2-2

C200H-CT002 Input Circuits

A19...... Input A: pos.

B19...... Input A: neg.

A17...... Input B: pos.

B17...... Input B: neg.

A15...... Input Z: pos.

B15...... Input Z: neg.

Filter

1.3 kΩ

A13......

A12......

B15......

A11......

A10......

B10......

Control input IN1: 12/24 VDC

Control input IN1: 5 VDC

Control input IN1: 0 V

Control input IN1: 12/24 VDC

Control input IN1: 5 VDC

Control input IN1: 0 V

Wiring Section 2-2

C200H-CT002 Output Circuits

B8......Output power

supply: 5 to 24 VDC

A8......Output 0

A7......Output 1

A6......Output 2

Fuse

0.5 A

Fuse

0.5A

A5......Output 3

B6......Output COM: 0 V

B4......Output power

supply: 5 to 24 VDC

A4......Output 4

A3......Output 5

A2......Output 6

A1......Output 7

B2......Output COM: 0V

Input Circuit Wiring Examples Section 2-3

2-3 Input Circuit Wiring Examples

2-3-1 C200H-CT001-V1

Examples The following wiring examples show connections between encoders and in-

puts A, B, and Z.

Example 1 12-VDC, Open-collector Encoder

C200H-CT001-V1 Counter Unit

Input A

Rectifier

Input B

Rectifier

This example shows the connections that would be used for a 12-VDC power supply and an incremental encoder with a open-collector output.

12-VDC power supply

24 V 12 V

5 V

0 V

24 V 12 V

5 V

0 V

Shielded twisted pair cable

A IA

IB IB

12 VDC

0 V

Power supply

–

Encoder

Input Z

Filter

24 V 12 V

5 V

IZ IZ

0 V

Input Circuit Wiring Examples Section 2-3

Example 2 12-VDC, Voltage-output, Sync-load Encoder

C200H-CT001-V1 Counter Unit

Input A

Rectifier

Input B

Rectifier

This example shows the connections that would be used for a 12-VDC power supply and a sync-load encoder with a voltage output. When the encoder output is high, the input to the Counter Unit turns OFF. When the encoder output is low, the input to the Counter Unit turns ON.

12-VDC power supply

24 V 12 V

5 V

0 V

24 V 12 V

5 V

0 V

Shielded twisted pair cable

A IA

IB IB

12 VDC

0 V

Power supply

–

Encoder

Input Z

Filter

24 V 12 V

5 V

IZ IZ

0 V

Input Circuit Wiring Examples Section 2-3

Example 3 5 VDC, Voltage-output, Source-load Encoder

CT001-V1 Counter Unit

Input A

Rectifier

Input B

Rectifier

This example shows the connections that would be used for a 5-VDC power supply and a source-load encoder with a voltage output. Here, attention must be paid to the ON voltage.

5 VDC

0 V

–

Encoder

24 V 12 V

5 V

0 V

24 V 12 V

5 V

0 V

5-VDC power supply

Shielded twisted pair cable

Input Z

Filter

24 V 12 V

5 V

0 V

Input Circuit Wiring Examples Section 2-3

2-3-2 C200H-CT002

Example 1 Line-driver Encoder

C200H-CT002 Counter Unit

Input A

Input B

Input Z

The following wiring examples shows connections between a line-driver encoder (Am26LS31-compatible) with outputs A, B, Z and inputs A, B, and Z.

Power supply

Encoder

Shielded twisted pair cable

–

A+

A–

B+

B–

C+

C–

Example 2 Open-collector Encoder and Encoder Adapter

C200H-CT002 Counter Unit

Input A

Input B

Input Z

The following wiring example shows connections between an open-collector encoder and an Encoder Adapter (C500-AE001), and between the Encoder Adapter and inputs A, B, and Z. Connections should be wired so that Counter Unit inputs go ON when encoder outputs go ON. Because the C500-AE001 Encoder Adapter uses an Am26LS31-compatible line driver, high voltage is impressed on the positive terminal and low voltage is impressed on the negative terminal when the output is high.

Shielded twisted pair cable

–

5- to 12-VDC power supply

–

C500-AE001 Encoder Adapter

A– A+

B– B+

Z– Z+

0 V

Voltage regulator

Shielded twisted pair cable

0 V

Encoder

0 V

Input Circuit Wiring Examples Section 2-3

Control Input Wiring Examples

Counter Unit

Control input IN1

Filter

In order to prevent chattering, install the input wiring with as few contacts as possible.

0 V

–

Sensor

Sensor output

Sensor

Sensor output

12/24 V

5 V

0 V

12/24 V

5 V

0 V

12- to 24-VDC power supply

Twisted pair cable

12 to 24 VDC

Input Circuit Wiring Examples Section 2-3

External Output Wiring Example

Drive circuitDrive circuit

5 to 24 VDC

Output 0

Output 1

Output 2

Output 3

The following example shows output wiring with outputs 0 through 3 connected to relays and outputs 4 through 7 connected to TTL devices.

Counter Unit

Relay

5 to 24 VDC

5- to 24-VDC

0 V

power supply

–

Switching capacity depends upon the voltage. Refer to Appendix B Specifications.

Fuse COM

0.5 A (0 V)

5 to 24 VDC

Output 4

Output 5

Output 6

Output 7

Fuse COM

0.5 A (0 V)

Counter Unit

Pull-up resistors (4.7 k

Ω)

Variable resistors

–

5 VDC 0 V

Output 4

Output 5

Output 6

Output 7

Low High

Buffers

Output Voltages for Outputs 0 through 7

Output ON. Output OFF.

5 VDC

Dimensions Section 2-4

2-4 Dimensions

Unit Dimensions (Unit: mm)

130

Mounted Dimensions (Unit: mm)

Connecting cable

100.5

Rack

117

Approx. 200

SECTION 3

Operation

This section describes the operational flow of the counting system. The input types are identified along with instructions for their use. Data transfer timing is described in relation to the PC cycle time.

3-1 Operational Flow 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 Input Selection 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-1 Offset Phases 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-2 Up and Down Pulses 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-3 Pulse and Direction 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3 Counter Reset Conditions 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 Data Transfer Timing 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input Selection Section 3-2

3-1 Operational Flow

Each Special I/O Unit mounted under a C200H PC is assigned a unit number between 0 and 9. The unit number assigned to the Counter Unit determines the 100 DM words and 10 IR words that will be allocated to it. DM words are used for Counter Unit parameters; IR words, for command bits and flags. (Refer to 4-1 Data Configuration and Allocation for details.) The following procedure outlines the steps necessary to operate the Counter Unit.

1, 2, 3... 1. Set the mode selector on the front panel to the desired operating mode,

and then set the DIP switch on the rear panel accordingly. (Refer to 2-1 Switch Settings.)

2. Set the unit number with the selector on the front panel. (Refer to 2-1 Switch Settings.)

3. Using the Programming Console, set data required in the DM area under the unit number.

4. Prepare the user program to operate the Counter Unit using the allocated IR area words and bits.

It is also possible to set parameters and counter values in any data area using the user program or the Programming Console. This data can then be transferred to the Counter Unit by using the TRANSFER DATA command bit. (Refer to page 40 TRANSFER DATA Command.)

3-2 Input Selection

Any one of three types of inputs can be selected: offset phase inputs (i.e., two inputs with offset phases), individual up and down inputs, and pulse and direction inputs. All three types of inputs include a reset input. Any type of any input can be used with any of the operating modes, although not all operating modes support resetting. (Refer to Section 4 Data allocation and Operating Modes for details.) The type of inputs is selected with the back panel DIP switch.

3-2-1 Offset Phases

Offset phase inputs use the difference in phase between two inputs to determine whether the counter value will be incremented or decremented. An input multiplier, either x 2 or x 4, is available with offset phase inputs to increase accuracy. I f the x 2 multiplier is selected, the counter value will be incremented or decremented twice for each input A pulse; if the x 4 multiplier is selected, the counter value will be incremented or decremented four times for each input A pulse. The multiplier is set with the back panel DIP switch. (Refer to 2-1 Switch Settings.)

The counter can be reset in the linear or circular operating modes by using the Z-phase output of the encoder. Refer to 3-3 Reset Conditions for details.

Encoder

Phase A

Phase B

Wire according to the counting direction

Counter Unit

Input A

Input B

Phase Z (reset input)

Counting Speed The maximum pulse frequency possible for offset phase inputs is determined

by the specifications of the incremental encoder connected to the Counter

Input Z

Input Selection Section 3-2

Units. The following example shows calculations E6B-CWZ3C Incremental Encoder when used with the C200H-CT001-V1. Rotational directions are given as viewed from the end of the encoder shaft.

Encoder Specifications

Power supply 4.75 to 13.2 VDC, ripple (p-p): 5% max. Current consumption 50 mA max. Resolution 500 pulses/revolution Outputs Phase A, phase B, phase Z Output type Open collector Output capacity Applied voltage: 30 VDC max.

Sync. current: 80 mA max.

Residual voltage: 1 V max Max. frequency 30 kHz Output phase difference

(between phase A and B) Output fall/rise time

90°±45° (1/4T±1/8T)

1.0 µs max.

CW Rotation Here, input A is advanced by 1/4T±1/8T over input B.

Towards CW

Input A

Input B

OFF

°)

(360

1/4 T±1/8 T (90°±45°)

CCW Rotation Here, input A is delayed by 1/4T±1/8T over input B.

Towards CCW

Input A

Input B

OFF

°)

(360

1/4 T + 1/8 T (90°+ 45°)

Since the output phase difference is 90°±45°, the minimum phase difference produced by this encoder is as follows:

90° – 45° = 45° Because the C200H-CT001-V1 requires a minimum phase difference of 4.5 4.5

must be less than 45°/360°. T must therefore be less than 36 meaning the maximum frequency, 1/T, would be 27.7 kcps (54 rps for 500 pulses per revolution). This would be the maximum frequency at which this encoder could be used with the C200H-CT001-V1. With the C200H-CT002, a minimum phase difference of 3 is required. Computing as above shows a maximum frequency of 41.7 kcps when using the C200H-CT002 with this encoder.

Note The minimum pulse width must be considered when using input Z to reset

the counter. With the C200H-CT001-V1, the pulse width of input Z must be

0.1 ms or greater, and the return frequency must be 5 kcps or less. With the

Input Selection Section 3-2

C200H-CT002, the pulse width of input Z must be 10 or greater, and the return frequency, allowing for software processing time, must be 10 kcps or less.

3-2-2 Up and Down Pulses

With separate up and down pulse inputs, the counter value is incremented or decremented on the rising edge of the appropriate input. Here, sensors could replace the encoders to provide inputs A and B.

In the linear or circular operating modes, the counter can be reset by connecting input Z to a sensor or switch.

Encoder or sensor

Sensor or switch

3-2-3 Pulse and Direction

With pulse and direction inputs, the counter value is incremented or decremented on the rising edge of the pulse input. If the direction input is OFF, the counter value is incremented; if the direction input is ON, the counter value is decremented. The direction input should be switched between ON and OFF only when the pulse input is OFF.

Counter Unit

Increment pulse

Input A

Decrement pulse

Input B

Reset input

Input Z

In the linear or circular operating modes, the counter can be reset by connecting input Z to a sensor or switch.

Encoder or sensor

Sensor or switch

Counter Unit

Pulse Input

Input A

Direction input

Input B

Reset input

Input Z

Counter Reset Conditions Section 3-3

3-3 Counter Reset Conditions

Counter reset conditions vary according to the combination of inputs used and pin settings on the back panel DIP switch. The DIP switch settings required for the input combinations shown in the following table and the operating modes that can be used with each are shown on the next page. (The numbers 1 through 17 above the input patterns correspond to the settings.) Resetting is not possible in the gate, latch, and sampling operating modes. All inputs for each pattern must be in the status shown for setting to be ef fective. The minimum input pulse width for the input Z is 0.1 ms;that for the control input IN1, 1 ms.

In the following table, input Z is indicated by Z; control input IN1, by IN1, and the internal reset bit, by IRB. The point at which the reset actually takes place is indicated by the arrow at the bottom of each pattern. The DIP switch settings for each pattern are described on the following page.

Inputs used Reset conditions and timings

1 2 3 4

Input Z Control input IN1 Internal reset bit

Input Z Control input IN1

Z IN1 IRB

5 6 7 8

Z IN1

IRB

Z IN1

IRB

Z IN1

IRB

Z IN1

Input Z Internal reset bit

Control input IN1 Internal reset bit

Input Z

Control input IN1

Internal reset bit

9 10

Z IRB

11 12

IN1 IRB

13 14

Z Z

15 16

IN1 IN1

IRB

Z IRB

IN1 IRB

Data Transfer Timing Section 3-4

DIP Switch Settings Pins 1 through 3 do not affect resetting

Pattern number on

1 ON ON ON ON ON OK OK OK 2 ON ON ON OFF ON OK OK OK 3 ON OFF ON ON ON OK OK OK 4 ON OFF ON OFF ON OK OK OK 5 ON ON ON ON OFF OK OK OK 6 ON ON ON OFF OFF OK OK OK 7 ON OFF ON ON OFF OK OK OK 8 ON OFF ON OFF OFF OK OK OK

9 ON ON OFF * ON OK OK OK 10 ON OFF OFF * ON OK OK OK 11 OFF * ON ON ON OK OK OK 12 OFF * ON OFF ON OK OK OK 13 ON ON OFF * OFF OK OK OK 14 ON OFF OFF * OFF OK OK OK 15 OFF * ON ON OFF OK OK OK 16 OFF * ON OFF OFF OK OK OK 17 OFF * OFF * ON OK OK OK

Pin Settings Possible operating modes

4 5 6 7 8 Linear Circular Preset

*These pins may be either ON or OFF.

3-4 Data Transfer Timing

Data transfer is available in linear and circular modes to change ranges limit settings or the current counter value and in preset mode to change range limit settings. The data to be transferred must be prepared in the appropriate form in a PC data area. Data transfer specifications and procedures are described under the relevant operating modes. This section describes only data transfer timing in relation to the PC cycle time.

C200H Cycle Time The C200H PC cycle consists of the following operations.

Cycle time Cycle time

Common processing

Host link servicing

Peripheral device servicing

Processing

I/O refresh cycle

Common processing

Host link servicing

Peripheral device servicing

Processing

I/O refresh cycle

Data Transfer Timing Section 3-4

Data Transfer Input and output data is transferred during the I/O refresh cycle. This means

that PC acknowledgement of inputs from the Counter Unit (e.g., status) and Counter Unit acknowledgement of outputs from the PC (e.g., commands) are delayed until the next I/O refresh cycle, as shown below.

Cycle time Cycle time Cycle time Cycle time Cycle time

C200H

Counter Unit

START and other outputs

Counting flag and other inputs

START and other outputs

Counting flag and other inputs

I/O refresh cycle

Data transfer would enter into the cycle time as shown below:

Cycle time Cycle time Cycle time

I/O refresh cycle

Data transfer

C200H

Transfer completed flag

Internal processing

Counter Unit

Transfer completed flag

Data Transfer in Remote I/O Systems

Data transfer acknowledged. Data transfer executed.

Note: The transfer completed flag reverses status (ON to OFF

or OFF to ON) each time a transfer is completed.

When the Counter Unit is mounted on a Rack containing a Remote I/O Slave Unit, a delay will occur due to data transfer between the Remote I/O Master Unit and the Remote I/O Slave Unit. See the C200H Programming Manual for details.

SECTION 4

Data Allocation and Operating Modes

This section describes the various operating modes in detail. Each mode is described by data allocation, timing charts, commands, flags, and examples. Data formats are explained.

4-1 Data Configuration and Allocation 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-1 Data Allocation 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-2 DM Area Settings 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-3 IR Area Settings 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-4 Timing Chart 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-5 Application Examples 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3 Preset Mode 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-1 Data Allocation 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-2 DM Area Settings 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-3 IR Area Settings 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-4 Timing Chart 60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-5 Application Example 61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4 Gate, Latch, and Sampling Modes 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4-1 Data Allocation 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4-2 DM Area Settings 65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4-3 IR Area Settings 65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4-4 Timing Charts 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4-5 Application Examples 70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Data Configuration and Allocation Section 4-1

4-1 Data Configuration and Allocation

IR words 100 through 199 are allocated as I/O refresh areas. Each Counter Unit is allocated 10 consecutive words (although not all modes use all 10 words). The first IR word for each Counter Unit, designated in this manual as n, can be computed from the unit numbers as follows:

n = 100 + 10 x unit number. IR words are refreshed during the PC’s I/O refresh cycle. Note that input and out-

put designations are in reference to the PC, e.g., command bits are outputs, status bits are inputs.

Each Counter Unit is also allocated 100 consecutive words as a parameter area (although not all modes use all 100 words). These words are in the DM area and run from DM 1000 through DM 1999. The first DM word for each Counter Unit, m, can also be computed from the unit number:

m = 1000 + 100 x unit number. All DM area data for the Counter Unit is transferred to it whenever power is

turned ON or the Counter Unit is reset.

Data Configuration and Allocation Section 4-1

These allocations are shown below for all unit numbers. Details of allocations within these words are given under the operating modes to which they apply. A quick overview of word and bit allocations is available in Appendix C IR Area Al- locations and Appendix D DM Area Coding Sheets.

C200H PC Counter Unit

DM area

Unit #0

DM 1000 through 1099

DM 1100 through 1199Unit #1

DM 1200 through 1299Unit #2

DM 1300 through 1399Unit #3

DM 1400 through 1499Unit #4

DM 1500 through 1599Unit #5

DM 1600 through 1699Unit #6

DM 1700 through 1799Unit #7

DM 1800 through 1899Unit #8

DM 1900 through 1999Unit #9

Data is automatically transferred to the Counter Unit when power is turned or when its restart flag in the AR area is turned ON.

Parameter area

Word m

∫

Word m+99

Data is transferred to the Counter Unit when the TRANSFER DATA command bit of the IR area si turned ON after setting the TRANSFER DATA command to the specified data area.

Specified Data Area (DM, fixed DM, I/O, LR, HR, or AR)

IR area

Data transfer

Data is transferred when TRANSFER DATA is set.

100 through 109Unit #0 110 through 119Unit #1 120 through 129Unit #2 130 through 139Unit #3 140 through 149Unit #4 150 through 159Unit #5 160 through 169Unit #6 170 through 179Unit #7 180 through 189Unit #8 190 through 199Unit #9

Data is transferred to the Counter Unit each I/O refresh.

Word n to n+4

Word n+4 to n+9

I/O Area

Output data area

Input data area

Linear and Circular Modes Section 4-2

Data Format Data is allocated by either bit or by word, though it is often input and output

by decimal digit, i.e., four bits (BCD), or by hexadecimal digit. Counter values, upper and lower limits of ranges, and some other data are held in two adjacent words, sometimes with a sign digit, in the following format.

Highest word Lowest word

sign x 106x 105x 104x 103x 102x 101x 10

0 1

–

Note that the rightmost word is always the lowest word, i.e., if the two words were m+10 and m+11, the rightmost word would be m+10; the leftmost, m+11. Furthermore, the rightmost digit in each word begins in the lowest bits, i.e., the digits

and x 100 above would be held in, bits 00 through 03 of their respective

x 10 words. Even when only one word or part of a word is required to hold data, e.g., the error code or error location, the rightmost digit is also always held in the lower bits. Although decimal notation is generally used for data in this manual, data is handled in the system as binary-coded decimal (BCD) unless otherwise noted. Note that this data is generally input as decimal, whereas hexadecimal data is input as hexadecimal. The number of digits given for certain data refers to the decimal digits, e.g., “7 digits with sign” indicates that the lowest word and right- most 12 bits of the highest word are allocated to the 7-digit decimal value; the leftmost four bits are allocated to the sign digit.

4-2 Linear and Circular Modes

In both linear and circular modes counter values are incremented and decremented according to any of the three types of input pulses. All functional aspect and data allocations for these two modes are the same, except that in linear mode, counter values range linearly between –8,388,608 and 8,388,607, while in circular mode, counter values range from 0 to a preset maximum value (used only in circular mode), with the maximum value and 0 being adjacent to each other in sequence. That is, decrementing below 0 results in the current counter value going to the maximum value; incrementing past the maximum value results in the current counter value going to zero.

Both modes provide 16 outputs, all of which can be output internally (i.e., to the PC) and eight of which can be output externally (i.e., without passing through the PC) as well as internally. These outputs are sometimes referred to by number and sometimes as either internal inputs and external inputs. The term internal outputs refers to all outputs sent to the PC; external outputs, to all outputs set to the external connector.

Both modes provide 16 ranges for counter values during which the outputs can be set to turn ON. These ranges can be enabled or disabled during operations. Data transfer from the PC data area is also available in both modes to change either range settings or the current counter value.

Although control input IN1 is supposed by both modes, control input IN2 is not used.

Note Stop counter operation before changing the present value to 0 or resetting

the Counter Unit in the ring mode. If either of these is performed without stopping counter operation, the maximum value preset operation will not be performed correctly.

4-2-1 Data Allocation

The commands, parameters, flags, and other information in the following tables are described in detail in 4-2-2 DM Area Settings and 4-2-3 IR Area Settings.

Linear and Circular Modes Section 4-2

DM Area The DM area contains user parameters that are to be set into the Counter

Unit, including the operating mode and output range limits. The first DM word for each Counter Unit is indicated by m and equals 1,000 plus 100 times the unit number.

Word Bit Function

m 07 through 00 Set to 0.

11 through 08 Operating mode (Here, either 1: linear or 2: circular)

15 through 12 Set to 0. m + 1 15 through 00 Effective range bits (bit numbers correspond to range numbers) m + 2 m + 3 15 through 00 6 digits (Bits 15 to 04 not used.) m + 4

m + 9

m + 10 15 through 00 Lower limit for range #0, 7 digits with sign digit

m + 11 15 through 00 m + 12 15 through 00 Upper limit for range #0, 7 digits with sign digit m + 13 15 through 00 m + 14 15 through 00 Output pattern for range #0 (bit numbers correspond to output numbers) m + 15

m + 19 m + 20

m + 24 m + 25

m + 29 m + 30

m + 34 m + 35

m + 39 m + 40

m + 44 m + 45

m + 49 m + 50

m + 54 m + 55

m + 59 m + 60

m + 64 m + 65

m + 69 m + 70

m + 74 m + 75

m + 79 m + 80

m + 84 m + 85

m + 89 m + 89

m + 99

15 through 00 Maximum counter value (for circular mode only)

Not used.

Lower limit, upper limit, and output pattern for range #1 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #2 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #3 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #4 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #5 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #6 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #7 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #8 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #9 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #10 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #11 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #12 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #13 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #14 (Format same as that for range #0.)

Lower limit, upper limit, and output pattern for range #15 (Format same as that for range #0.)

Not used.

Linear and Circular Modes Section 4-2

IR Area The IR area contains commands and status information. Inputs and outputs

are given in reference to the PC, i.e., output data is sent from the PC to the Counter Unit; input data, from the Counter Unit to the PC. The first IR word for each Counter Unit is indicated by n and equals 100 plus 10 times the unit number.

Outputs

Word Bit Function

START command

TRANSFER DATA command

ENABLE OUTPUT command

Not used.

CHANGE RANGES command

READ ERROR command

RESET COUNTER command

n+1

n+2

n+3

ENABLE FORCED OUTPUT command

Output #0 force bit

Output #1 force bit

Output #2 force bit

Output #3 force bit

Output #4 force bit

Output #5 force bit

Output #6 force bit

Output #7 force bit

Range #0 enable bit

Range #1 enable bit

Range #2 enable bit

Range #3 enable bit

Range #4 enable bit

Range #5 enable bit

Range #6 enable bit

Range #7 enable bit

Range #8 enable bit

Range #9 enable bit

Range #10 enable bit

Range #11 enable bit

Range #12 enable bit

Range #13 enable bit

Range #14 enable bit

Range #15 enable bit TRANSFER DATA beginning word

−00

number, 4 digits TRANSFER DATA data area, 0 to 4

03−00

Not used. (Set to 0.)

−04

Number of transfers, 1 to 3

−08

Inputs

Word Bit Function

Counting flag

Z flag

IN1 flag

IN2 flag

n+4

n+5 n+6

n+7

n+8

n+9

Transfer completed flag

Error flag

Count overflow flag

Reset flag

Not used

Error location

07−00

Error code

−08

Current counter value, 7 digits with sign

−00

(–8,388,608 to +8,388,607)

−00

Range #0 flag

Range #1 flag

Range #2 flag

Range #3 flag

Range #4 flag

Range #5 flag

Range #6 flag

Range #7 flag

Range #8 flag

Range #9 flag

Range #10 flag

Range #11 flag

Range #12 flag

Range #13 flag

Range #14 flag

Range #15 flag

Output #0 flag (external output possible)

Output #1 flag (external output possible)

Output #2 flag (external output possible)

Output #3 flag (external output possible)

Output #4 flag (external output possible)

Output #5 flag (external output possible)

Output #6 flag (external output possible)

Output #7 flag (external output possible)

Output #8 flag (internal output only)

08 09

Output #9 flag (internal output only)

Output #10 flag (internal output only)

Output #11 flag (internal output only)

Output #12 flag (internal output only)

Output #13 flag (internal output only)

Output #14 flag (internal output only)

Output #15 flag (internal output only)

Linear and Circular Modes Section 4-2

4-2-2 DM Area Settings

Operating Mode DM word m, bits 11 through 08

The operating mode is set with the mode selector on the front panel. Refer to 1-4 Operating Modes for an overview of available modes.

Effective Range Bits DM word m+1

Bit numbers correspond to range numbers, i.e., but 0 corresponds to range #0; bit 1, to range #1, etc. Range data is allocated to words m+10 through m+89. Turn ON (set to 1) the bits for all ranges that are to be effective. These bits are effective immediately after the power supply is turned ON or the Counter Unit is restarted. The effective ranges can also be changed using CHANGE RANGES. Refer to 4-3-3 IR Area Settings for details.

Maximum Counter Value (Circular Mode Only)

Range Settings Words m+10 through m+89

Lower Limit Words m+10 and m+11 (Range #0)

Upper Limit Words m+12 and m+13 (Range #0)

DM word m+2 and m+3 Set to between 0 and 65,535.

The counter value will return to zero when incremented past this value and return to this value when decremented below zero.

Each of the 16 ranges is allocated 5 consecutive words for its lower limit, upper limit, and output pattern. Refer to 4-3-1 Data Allocation for the specific words for each range; the following allocations are for range #0. In circular mode, a range will span zero if the lower limit is greater than the upper limit. Ranges may overlap, in which case all outputs specified for each are set. Set all data for unused ranges to zeros.

The lower limit must be within the limits of the counter value, i.e., between 0 and the maximum counter value in circular mode and between –8,388,608 and 8,388,607 in linear mode. Bits 15 through 12 of DM word m+11 (leftmost digit in higher word) is the sign digit (not used in circular mode).

The upper limit must also be within the limits of the counter value, i.e., between 0 and the maximum counter value in circular mode and between –8,388,608 and 8,388,607 in linear mode. Bits 15 through 12 of DM word m+13 (leftmost digit in higher word) is the sign digit (not used in circular mode).

Output Pattern DM word m+14 (Range #0)

Each bit corresponds to the output of the same number . Each output whose bit is ON will be turned ON (set to 1) when the counter value is within range. An output may not be activated, however, if the range is too narrow in comparison to the frequency of the pulse input. All outputs are sent to the IR area word n+9. Outputs #0 through #7 are also sent to outputs 0 through 7 of the external connector when bit 02 of word n is ON.

Linear and Circular Modes Section 4-2

4-2-3 IR Area Settings

The IR area contains commands used to operate the Counter Unit and flags used to monitor its operation. Both of these are used in programming the desired counter operations.

START Command Word n, bit 00

Counting starts on rising edge of the START command bit and stops on the falling edge. The current counter value and output pattern immediately before stopping are retained. An exception to this, however, is when the output force bits are used (see below).

ENABLE OUTPUT Command

ENABLE FORCED OUTPUT Command

Output Force Bits Word n, bits 15 through 08

1, 2, 3... 1. Make sure START is OFF.

Range Enable Bits Word n+1

Word n, bit 02 Set this bit to enable external output of outputs #0 through #7. The status of the

outputs are indicated by LEDs 0 though 7 when the outputs are enabled. Word n+9 status is output regardless of the status of ENABLE OUTPUT.

Word n, bit 07

Setting this command bit enables usage of the output force bits in word n, bits 08 through 15.

Output force bits can be set to turn ON outputs #0 through #7, thereby permitting wiring checks. Both ENABLE OUTPUT and ENABLE FORCED OUTPUT must be ON to use the output force bits. The following procedure is used.

2. Set ENABLE OUTPUT.

3. Make sure all output force bits are OFF.

4. Set ENABLE FORCED OUTPUT.

5. Set the required output force bits. Refer to 4-2-1 Data Allocation for the specific bit allocations.

Range enable bits are turned ON to enable and turned OFF to disable outputs within the specified range. The number of the bit in word n+1 is the same as the number of the range it enables. The ranges that are currently effective are indicated in D M word m+1. The settings of the currently ef fective bits will be changed to those specified by the range enable bits when CHANGE RANGES is set.

CHANGE RANGES Command

RESET COUNTER Command

TRANSFER DATA Command

Word n, bit 04

Set this command bit to change the effective ranges designated in DM word m+1 to correspond to the settings of the range enable bits.

CHANGE RANGES is effective during counter operation. Word n, bit 06

RESET COUNTER is effective when the internal reset bit is designated with back panel DIP switch settings (refer to 2-1 Switch Settings). RESET COUNT- ER can be combined with input Z and control input IN1 or resetting is possible using only input Z and/or control input IN1. Refer to 3-3 Counter Reset Condi- tions for details. Resetting returns the counter value to 0 and turns OFF all outputs.

Word n, bit 01

Linear and Circular Modes Section 4-2

TRANSFER DATA can be set to change output ranges or, if the first word being transferred contains FF, it can be set to preset or change the current counter value. Data in the proper format must be prepared in consecutive words in the PC through the PC program or the Programming Console. The parameters described below are required to transfer data. These are followed by explanations of the data format used to prepare data in the PC data area and application examples of TRANSFER DATA for transferring range parameters and counter value. Data transfer is initiated on the rising edge of TRANSFER DAT A and is completed at the next I/O refresh. Completion can be confirmed with the transfer completed flag, bit 04 of word n+4. Transfer should be executed only when the Counter Unit is not counting. Execution during counting may cause incorrect outputs.

TRANSFER DATA Beginning Word Number

Word n+2 Indicates the first PC word from which data is to be transferred.

TRANSFER DATA Area Word n+3, bits 03 through 00

Set to between 0 and 4. Specifies the PC data area from which data is to be transferred. Specifications are as follows:

Setting Data area

0 1 2 3 4

LR HR AR

Note Use only the following words in the DM and IR areas: DM 0000 to DM 1999

and IR 000 to IR 235. Although the C200HS provides larger areas, if any words not within the specified ranges are used, an error will occur and an error code of 34 will be output.

Number of Transfers Word n+3, bits 15 through 08

Set to between 1 and 3. When changing range parameters, data for up to three ranges can be trans-

ferred at th e same time. When transferring the counter value, only one value can be transferred at a time.

PC Data Format Six consecutive words are used as the source of a data transfer. These

words must all be in the same data area. If data is transferred for more than one range, the six words for each following transfer must continue consecutively on from the last word for the first transfer. Bits 07 through 00 of the first PC word actually designate either the range number for which data is to be transferred or, if the bits contain FF, they specify that a counter value is to be transferred.

If range parameters are being transferred, the remaining five words contain the lower limit, upper limit, and output pattern for the specified range in the same format that this data is contained in the DM area. If, for example, range #0 parameters were being transferred, the second and third PC words would replace parameters in DM words m+10 and m+11, i.e., the lower limit for range #0.

If a counter value is being transferred, the second and third PC words contain the counter value in the same format that it is held in words n+6 and n+7, and the last three words are ignored. More efficient use of PC words is possible, however, when preparing more than one counter value for transfer . To do this, input FF into

Linear and Circular Modes Section 4-2

the first and then every third word and input the counter values into the two words after each word containing FF. The last counter value must be followed by three unused words to satisfy the requirement for six words for the last counter value. This setup is shown on the next page for three counter values, with the first PC word indicated by k. Words k, k+3, and k+6 can then be designated individually to set the counter value as required.

PC Word Contents

k FF k+1 and k+2 Counter value 1 k+3 FF k+4 and k+5 Counter value 2 k+6 FF k+7 and k+8 Counter value 3 k+9 through k+11 Ignored

Application Example 1: Transferring Range Parameters

Procedure

1, 2, 3... 1. The range parameters are input into the DM area in a section not nor-

The following example shows use of TRANSFER DATA to transfer the upper limit, lower limit, and output pattern for three ranges. The system configuration consists of a Counter Unit (unit #0) on a C200H PC and an Input Unit allocated word 00. The Input Unit is connected to two switches: SW1, which is programmed to START (00000), and SW2, which is programmed to TRANSFER DATA (00001).

mally used by Special I/O Units, starting at DM word 1900 and running through DM word 1905. Parameters for a second range are input starting at DM word 1906 and run through DM word 1911. A third range is input into DM words 1912 through 1917.

2. The beginning word for transfer, the data area, and the number of transfers is set through the program, which is written to move the beginning word, 1900, into IR word 102 and the number of words and data area, 03 for bits 15 through 08 and 00 for bits 07 through 00, into IR word 103.

Linear and Circular Modes Section 4-2

Program

25315

MOV (21)

First Cycle Flag

(SW2) 00001

(SW1) 00000

#0000

030

03000 10000

(START/STOP)

10404

(Transfer completed flag)

DIFU (13) 03000

MOV (21)

DIFU (13) 03001

DIFD (14) 03002

#1900

102

#0300

103

10001

TRANSFER DATA SWITCH

Word 102: Beginning word

Word 103: Number of words and data area

TRANSFER DATA

03000

03001 03002 03003

00000 00001 03003

(SW1) (SW2)

Application Example 2: Transferring the Counter Value

03003

10000

10002

10006

START

OUTPUT ENABLE

RESET COUNTER

The following example shows use of TRANSFER DATA to transfer the counter value. The system configuration consists of a Counter Unit (unit #1) on a C200H PC and three Input Units allocated words 00, 03, and 04. One Input Unit is connected to two switches: SW1, which is programmed to START (00000), and SW2, which is programmed to TRANSFER DATA (00001). Each of the other Input Units is connected to a rotary switch: the switch connected to the Input Unit allocated word 03 is used to input the rightmost four

Linear and Circular Modes Section 4-2

digits of the counter value, the switch connected to the Input Unit allocated word 04 is used to input the sign digit and the leftmost four digits of the counter value.

Procedure

1, 2, 3... 1. The desired counter value is input with the rotary switches as I/O words

3 and 4.

2. The beginning word for transfer, the data area, and the number of transfers is set through the program, which is written to move the beginning word, 0002, into IR word 112 and the number of transfers and data area, 01 for bits 15 through 08 and 01 for bits 07 through 00, into IR word 113. The program is also used to input ”FF” into the first word to indicate transfer of a counter value.

Program

25315

MOV (21)

First Cycle Flag

(SW2) 00001

(SW1) 00000

DIFU (13) 03000

#0000

030

TRANSFER DATA SWITCH

03000 10000

(START/STOP)

11404

(Transfer completed flag)

03000

03001 03002 03003

MOV (21)

DIFU (13) 03001

DIFD (14) 03002

#00FF

002

#0002

112

#0101

113

11001

03003

Word 002: Data for beginning transfer word to indicate counter value.

Word 112: Beginning word

Word 113: Number of transfers and data area

TRANSFER DATA

00000 00001 03003

(SW1) (SW2)

Counting Flag Word n+4, bit 00

The counting flag is ON whenever the Counter Unit is counting. The RUN indicator will also be lit.

11000

11002

START

OUTPUT ENABLE

Linear and Circular Modes Section 4-2

Z Flag Word n+4, bit 01

The Z flag indicates the status of input Z. When the flag is ON, the input is high; when the flag is OFF, the input is low. This flag can be accessed during counting.

Note The Z flag may not turn ON if the Z phase pulse width is less than or equal to

the C200H/C200HS cycle time +3 ms.

IN1 Flag Word n+4, bit 02

The IN1 flag indicates the status of control input IN1. When the flag is ON, the input is high; when the flag is OFF, the input is low. This flag can be accessed during counting.

IN2 Flag Word n+4, bit 03

The IN2 flag indicates the status of control input IN2. When the flag is ON, the input is high; when the flag is OFF, the input is low. This flag can be accessed during counting.

Transfer Completed Flag Word n+4, bit 04

The transfer completed flag is inverted following completion of TRANSFER DATA.

Error Flag Word n+4, bit 05

The error flag is turned ON whenever an error has occurred. Information on the type and location of the error is available in IR word n+5 upon execution of READ ERROR.

READ ERROR Command Word n, bit 05

READ ERROR can be set to access information on the error whenever the error flag is ON. Error information is output to IR word n+5. If more then one error has occurred, information on other errors can be output to IR word n+5 by again setting READ ERROR. The next error will be output each time this bit is turned ON.

Error Location Word n+5, bit 07 through 00

The error location gives the rightmost two digits of the DM address, i.e., the word number, where the data causing the error is stored.

Error Code Word n+5, bit 15 through 08

Error codes indicate the nature of the error and are given in Appendix A Error Code List.

Count Overflow Flag Word n+4, bit 06

The count overflow flag is turned ON when the counter value is greater than 8,388,607 or less than –8,388,608. This flag turns OFF when the next operation is started.

Reset Flag Word n+4, bit 07

The reset flag turns ON for one PC cycle time after the Counter Unit is reset.

Current Counter Value Word n+6 and n+7

The current counter value is accessible in words n+6 and n+7 as 6 BCD digits with a sign digit.

Range Flags Word n+8

The number of each bit in IR word n+8 corresponds to a range number. A range flag is ON whenever the current counter value is within the specified range.

Linear and Circular Modes Section 4-2

Output Flags Word n+9

The number of each bit in IR word n+9 corresponds to an output number. An output flag is ON whenever the specified output is ON. Output flags are turned ON regardless of the status of ENABLE OUTPUT.

4-2-4 Timing Chart

The following chart shows timing relationships between the command bits (input bits) and output bits in linear and circular mode.

Start

Word n, bit 00

Counting flag

Word n + 4, bit 00

Internal outputs Word n + 9

External outputs Outputs to connector terminals

ENABLE OUTPUT

Word n, bit 02

ENABLE FORCED OUTPUT

Word n, bit 07

abbab

4 46

babbbaa

a: Normal outputs b: Forced outputs

1, 2, 3... 1. START is effective on the rising edge.

2. External outputs are prohibited when ENABLE OUTPUT is OFF.

3. The Counter Units stops counting on the falling edge of START. Status of internal and external outputs are retained.

4. The status of the output force bits is output when ENABLE FORCED OUTPUT is ON. All outputs are reset when ENABLE FORCED OUTPUT goes OFF.

5. Setting START during counting returns all outputs to normal status, i.e., makes ENABLE FORCED OUTPUT ineffective. The status of output force bits is then restored when STOP goes OFF.

6. ENABLE FORCED OUTPUT is ineffective while START is ON.

Linear and Circular Modes Section 4-2

4-2-5 Application Examples

Linear Operating Mode: Controlling Conveyor Processing System Configuration

An encoder adapter is required if the C200H-CT002 is used with an open-collector encoder.

Encoder adapter

Motor

Process indicators

Transfer hand

Output Unit C200H-OC224

Outputs 0 through 3

Station 2 Station 1

Counter Unit

C200H PC

Control input IN1Inputs A and B

Photoelectric switch

Work piece

Conveyor

Encoder

Operation This example system detects the position of the work piece on the conveyor

by means of the pulse input from the encoder and processes the work piece at the required positions.

1, 2, 3... 1. The photoelectric switch detects that the work piece is loaded on the

conveyor belt from a transfer conveyor, and the counter value is reset.

2. The counter value is used to control processing at each station.

3. The PC controls the motor operation and drives the transfer hand.

Switch Settings In this example, the unit number selector and the mode selector are both set

to 1. Pins 6 and 7 are turned ON on the back panel DIP switch to designate offset phase inputs with no input multiplier and to make control input IN1 effective on its rising edge. All other pins on the DIP switch are turned OFF.

Wiring

1, 2, 3... 1. Connect the output from the photoelectric switch to control input IN1.

2. Connect encoder outputs to the inputs A and B.

3. Connect outputs 0 through 3 to the process indicators.

4. Connect the Output Unit to the motor and the transfer hand.

Linear and Circular Modes Section 4-2

DM Area Settings

DM 1100 DM 1101

DM 1110 DM 1111 DM 1112 DM 1113 DM 1114 DM 1115 DM 1116 DM 1117 DM 1118 DM 1119 DM 1120 DM 1121 DM 1122 DM 1123 DM 1124 DM 1125 DM 1126 DM 1127 DM 1128 DM 1129

000

0000

000 2

00 5 0000 9

00 9

86 0 00

0000 1

0000

8 3

00 0000 2

000

00 0000 4 1

0 0000

Sets the mode to 1 (linear). Enables ranges #0, #1, #2, and #3.

Range #0 (work piece at station 1) Lower limit: 1000; upper limit: 1200 Output pattern specifies that output #0 be turned ON when the counter value is within range #0

Range #1 (work piece at station 2) Lower limit: 2500; upper limit: 2900 Output pattern specifies that outputs #1 and #8 be turned ON when the counter value is within range #1

Range #2 (work piece at transfer point) Lower limit: 5000; upper limit: 9500 Output pattern specifies that outputs #2 and #9 be turned ON when the counter value is within range #2.

Range #3 (work piece passed through transfer point) Lower limit: 9501; upper limit: 8,388,607 Output pattern specifies that outputs #3 and #10 be turned ON when the counter value is within range #3.

Linear and Circular Modes Section 4-2

Program

Start switch

11909 11908

11000

11002

Station 1 processing

Station 2 processing

Controlling the transfer hand

Completion of one cycle

START and ENABLE OUTPUT are ON while the start switch is ON.

Processing is performed at station 1 when the current counter value is within range #0.

Processing is performed at station 2 when the current counter value is within range #1.

Transfer hand is operated when the current counter value is within range #2.

Completion process for one cycle is carried out when the current counter value is within range #3

Internal outputs 11908 and 11909 are used to control position-dependent processing. Process indicators are turned ON and OFF directly through outputs #0 through #3. Internal outputs are turned ON/OFF through ranges #0 through #3. These outputs indicate the position of the work piece, and required processing is carried out accordingly.

Range flags can also be used for programming, as shown below.

Start switch

11000

11002

11800

Range #0 flag

11801

Range #1 flag

11802

Range #2 flag

11803

Range #3 flag

Station 1 processing

Station 2 processing

Controlling the transfer hand

Completion of one cycle

Linear and Circular Modes Section 4-2

Circular Operating Mode: Functioning as Mechanical Cam Switches System Configuration

Counter Unit

Encoder adapter

C200H PC

Outputs #1, #6, and #7

An encoder adapter is required if the C200H-CT002 is used

Inputs A, B, and Z

Encoder

with an open-collector encoder.

Motor

Operation This example system uses the encoder to detect control timing for devices

linked to a shaft driven by a motor. The system controls outputs according to shaft rotation.

Switch Settings In this example, the unit number selector is set to 1 and the mode selector is

set to 2. Pins 2, 4, 6, and 8 are turned ON on the back panel DIP switch to designate offset phase inputs with a x 4 input multiplier and to enable resetting on the rising edge of input Z or RESET COUNTER, whichever is set last (both must be ON to reset the Counter Unit). All other pins are turned OFF.

Wiring

1, 2, 3... 1. Connect encoder outputs to inputs A, B, and Z.

2. Connect outputs #1, #6, and #7 to controllers for devices linked to the shaft.

Linear and Circular Modes Section 4-2

DM Area Settings

DM 1100 DM 1101 DM 1102 DM 1103

DM 1110 DM 1111 DM 1112 DM 1113 DM 1114 DM 1115 DM 1116 DM 1117 DM 1118 DM 1119 DM 1120 DM 1121 DM 1122 DM 1123 DM 1124

000

499

000

0000

008

04 0 0000

0000 00 0000 2

006

00 0000

Sets the mode to 1 (linear). Enables ranges #0, #1, #2, and #3.

Sets the maximum counter value to 4,999. (The counter values change as follows : 0, 1,...4998, 4999, 0, 1,...)

Range #0 (work piece at station 1) Lower limit: 1000; upper limit: 1010 Output pattern specifies that output #7 be turned ON when the counter value is within range #0

Range #1 (work piece at station 2) Lower limit: 4300; upper limit: 200 (0 is spanned) Output pattern specifies that outputs #1 and #6 be turned ON when the counter value is within range #1

Range #2 (work piece at transfer point) Lower limit: 600; upper limit: 3100 Output pattern specifies that outputs #6 and #7 be turned ON when the counter value is within range #2.

Program

Start switch

Reset switch

11006

START and ENABLE OUTPUT

11000

are ON while the start switch is ON.

11002

11401

Input Z

The Counter Unit is reset on the rising edge of the input Z

11006

immediately after the counter reset switch is pressed.

Outputs #1, #6, and #7 are directly output from the Counter Unit.

Preset Mode Section 4-3

4-3 Preset Mode

In preset mode counter values are decremented (or incremented) according to any of the three types of input pulses. When the start signal is set, the counter value begins from a specified, preset value (maximum: 8,388,607). Up to 20 counter values can be preset. These presets can be updated from the PC six at a time by using TRANSFER DATA.

Eight outputs are available that can be output to the PC and/or externally, i.e., directly to an external device. The first output (#0) turns ON when counting is started and turns OFF at a specified counter value. The next two outputs (#1 and #2) turn ON and OFF at specified counter values. The last four outputs (#4 through #7, output #3 is not used in preset mode) turn ON for either a specified length of time or indefinitely following the countdown. The counter values at which outputs turn ON and/or OFF cannot be changed during operation.

Although control input IN1 is supported as a reset input, control input IN2 and input Z are not used.

Note that, because the counter is designed to count down in preset mode, the encoder input should be set accordingly.

The START command (word n, bit 00) is used to start and stop (i.e., as the start signal) the Counter Unit when pin 4 on the back-panel DIP switch is turned OFF. Control input IN2 is used to start and stop the Counter Unit when pin 4 is ON.

4-3-1 Data Allocation

DM Area The DM area contains the user-input parameters that are to be set into the

Counter Unit, including the operating mode and ON/OFF counter value. The first DM word for each Counter Unit is indicated by m and equals 1,000 plus 100 times the unit number.

Word Bit Function

m 07 through 00 Set to 0.

11 through 08 Operating mode (Here, 3: preset)

15 through 12 Set to 0. m+1 15 through 00 OFF counter value for output #0, 7 digits m+2 11 through 00

15 through 12 Set to 0. m+3 15 through 00 ON counter value for output #1, 7 digits m+4 11 through 00

15 through 12 Set to 0. m+5 15 through 00 OFF counter value for output #1, 7 digits m+6 11 through 00

15 through 12 Set to 0. m+7 15 through 00 ON counter value for output #2, 7 digits m+8 11 through 00

15 through 12 Set to 0. m+9 15 through 00 OFF counter value for output #2, 7 digits

m+10 11 through 00

15 through 12 Set to 0.

m+11 15 through 00 ON time for outputs #4 through #7, 4 digits (unit: 0.01 s)

Output will remain on until next the start signal if FFFF is input.

m+12 m+13

m+14 15 through 00 Preset #0, 6 digits

Not used.

Preset Mode Section 4-3

Word FunctionBit

m+15 11 through 00

15 through 12 Output pattern #0 (for preset #0);

Bit 12: output #4 Bit 13: output #5 Bit 14: output #6 Bit 15: output #7

Word Function m+16

m+17

m+18 m+19

m+20 m+21

m+22 m+23

m+24 m+25

m+26 m+27

m+28 m+29

m+30 m+31

m+32 m+33

m+34 m+35

Preset #1 and output pattern #1

Preset #2 and output pattern #2

Preset #3 and output pattern #3

Preset #4 and output pattern #4

Preset #5 and output pattern #5

Preset #6 and output pattern #6

Preset #7 and output pattern #7

Preset #8 and output pattern #8

Preset #9 and output pattern #9

Preset #10 and output pattern #10

Word Function

m+36 m+37

m+38 m+39

m+40 m+41

m+42 m+43

m+44 m+45

m+46 m+47

m+48 m+49

m+50 m+51

m+52 m+53

m+54 to

m+99

Preset #11 and output pattern #11

Preset #12 and output pattern #12

Preset #13 and output pattern #13

Preset #14 and output pattern #14

Preset #15 and output pattern #15

Preset #16 and output pattern #16

Preset #17 and output pattern #17

Preset #18 and output pattern #18

Preset #19 and output pattern #19

Not used.

IR Area The IR area contains commands and status information. Inputs and outputs

Preset Mode Section 4-3

Outputs

Word Bit Function

n 00 START command (The START command is effective only

when pin 4 on the back-panel DIP switch is turned OFF. If pin 4 is ON, control input IN2 is used to start and stop the

Counter Unit.) 01 TRANSFER DATA command 02 ENABLE OUTPUT command 03 Not used. 04 CHANGE PRESET command 05 READ ERROR command 06 RESET COUNTER command 07 ENABLE FORCED OUTPUT command 08 Output #0 force bit 09 Output #1 force bit 10 Output #2 force bit 11 Output #3 force bit 12 Output #4 force bit 13 Output #5 force bit 14 Output #6 force bit 15 Output #7 force bit

n+1

n+2 n+3

07−04 15−08 15−00 03−00 07−04 15−08

Not used.

Preset number, 2 digits, between 00 and 19

TRANSFER DATA beginning word number, 4 digits

TRANSFER DATA data area, 0 through 4

Not used. (Set to 0.)

Number of transfers, 1 through 3

Preset Mode Section 4-3

Inputs

Word Bit Function

n+4 00 Counting flag

01 Not used. 02 IN1 flag 03 Not used. 04 Transfer completed flag. 05 Error flag 06 Count overflow flag 07 Reset flag 08 Output #0 flag (external output possible) 09 Output #1 flag (external output possible) 10 Output #2 flag (external output possible) 11 Output #3 flag (external output possible) 12 Output #4 flag (external output possible) 13 Output #5 flag (external output possible) 14 Output #6 flag (external output possible) 15 Output #7 flag (external output possible)

n+5

n+6

n+7 n+8

n+9 Not used.

07−00 15−08 15−00

15−00 07−00 15−08

Error location

Error code

Current counter value, 6 digits with sign (sign digit always 0,

i.e., “+”)(0 to 8,388,6077)

Not used.

Current present counter number.

4-3-2 DM Area Settings

Operating Mode DM word m, bits 11 through 08

The operating mode is set with the mode selector on the front panel. Refer to 1-4 Operating Modes for an overview of available modes.

Presets DM words m+14 through m+53

Two words are used to hold each preset counter value from #0 though #19. A counter value between 1 and 8,388,607 must be input for each preset used. The number of the currently effective preset is set in the IR area. Clear all unused presets to 0 t o avoid error messages. W ords m+54 through m+99 do not need to be cleared.

Output Patterns Each preset contains an output pattern that designates which outputs are to

be turned ON after countdown. All outputs whose bits are ON are output upon completion of the countdown when the relevant preset counter value is used. The output pattern is held in bits 12 through 15 of the higher of the two words used for each preset. Bits correspond to outputs as follows:

Bit 12: output 4 Bit 13: output 5 Bit 14: output 6 Bit 15: output 7

Preset Mode Section 4-3

ON/OFF Counter Values ON Time

Counter preset value

Counter value

Output #0

Output #1

Output #2

DM words m+1 through m+11 Outputs #0 though #2 turn ON and OFF according to the counter values set in

DM words m+1 through m+10. The only exception is that output #0 turns ON at the beginning of the countdown. The diagram below illustrates this situation. Each of the counter values must be set between 0 and 8,388,607.

The ON time sets the length of time that outputs #4 through #7 remain ON after completion of the countdown when they are designated in the relevant output pattern. The setting value must either be between 0 and 99.99 (decimal not input) or it must be ”FFFF”, in which case the designated outputs will remain ON until the start signal is turned ON again.

ON OFF

ON Counter Value

OFF Counter Value

Output #4

Output #5

Output #6

Output #7

ON OFF

4-3-3 IR Area Settings

The IR area contains commands used to operate the Counter Unit and flags used to monitor its operation. Both of those are used in programming the desired counter operations.

START Command Word n, bit 00

The countdown begins on the rising edge of the START command bit according to parameters from DM area. Note that the countdown will begin with preset #0 unless CHANGE PRESET is ON to designate the number of another preset.

The START command is ef fective only when pin 4 on the back-panel DIP switch is turned OFF. If pin 4 is ON, control input IN2 is used to start and stop the Counter Unit.

ON time

ENABLE OUTPUT Command

Word n, bit 02

Preset Mode Section 4-3

Set this bit to enable external output of outputs #0 though #7. The status of the outputs is shown on indicators 0 though 7 when outputs are enabled. Word n+9 status is output regardless of the condition of ENABLE OUTPUT.

ENABLE FORCED OUTPUT Command

Output Force Bits Word n, bits 15 through 08

1, 2, 3... 1. Make sure the start signal is OFF.

CHANGE PRESET Word n, bit 04

Preset Number Word n+1, bits 15 through 08

Word n, bit 07 Setting this command bit enables usage of the output force bits in word n (bits 08

through 15).

Output force bits can be set to turn ON outputs #0 through #7, thereby permitting wiring checks. Both the ENABLE OUTPUT command bit and the ENABLE FORCED OUTPUT command bit must be ON to use the output force bits. The following procedure is used.

2. Set ENABLE OUTPUT.

3. Make sure all output force bits are OFF.

4. Set ENABLE FORCED OUTPUT.

5. Set the required output force bits. Refer to 4-3-1 Data Allocation for the specific bit allocations.

CHANGE PRESET is set to designate any preset other than #0. If CHANGE PRESET is OFF when the start signal is set, the countdown will begin from the value designated by preset #0, regardless of the contents of the preset designated by the preset number.

The preset number is set to designate a preset counter value other then preset #0. The number set in bits 15 through 08 is effective only when CHANGE PRESET is turned ON before the start signal is turned ON.

PRESET COUNTER Command

TRANSFER DATA Command

TRANSFER DATA Beginning Word Number

TRANSFER DATA Area Word n+3, bits 03 through 00

Word n, bit 06 RESET COUNTER is effective when the internal reset bit is designated with

back panel DIP switch settings (Refer to 2-1 Switch Settings). RESET COUNTER can be combined with control input IN1 or resetting is possible using only control input IN1. Refer to 3-3 Counter Reset Conditions for details. Resetting returns the counter value to 0 and turns OFF all outputs.

Word n, bit 01 TRANSFER DAT A can be set to transfer up to 6 preset counter values to replace

any of presets #0 through #19. The new presets can then be used for countdown. Data in the proper format must be prepared in consecutive words in the PC through the PC program or the Programming Console. The parameters described below are required to transfer data. These are followed by explanations of the data format used to prepare data in the PC data area. Data transfer is initiated on the rising edge of TRANSFER DATA and is completed at the next I/O refresh. Completion can be confirmed with the transfer completed flag, bit 04 of word n+4. Transfer should be executed only when the Counter Unit is not counting. Execution during counting may cause incorrect outputs.

Word n+2 Indicates the first PC word from which data is to be transferred.

Preset Mode Section 4-3

Set to between 0 and 4. Indicates the PC data area from which data is to be transferred. Indications are

as follows:

Setting Data area

0 DM 1 I/O 2 LR 3 HR 4 AR

Note Use only the following words in the DM and IR areas: DM 0000 to DM 1999

and IR 000 to IR 235. Although the C200HS provides larger areas, if any words not within the specified ranges are used, an error will occur and an error code of 34 will be output.

Number of Transfers Word n+3, bits 15–08

Set to between 1 and 6. Counter values can be transferred for up to 6 presets at the same time. To trans-

fer more the 6, TRANSFER DATA must be executed a second time with dif ferent parameters.

PC Data Format Three consecutive words are used as the source of data transfer for each

preset that is being transferred. These words must all be in the same data area. If data is transferred for more than one preset, the three words for each following transfer must continue consecutively on from the last word for the first transfer. The first word designates the number of the preset whose value is contained in the following two words. The last two words contain the preset counter value and output pattern in the same format as that used in DM for the normal presets. The numbers of the presets being transferred need not be consecutive.

Counting Flag Word n+4, bit 00

The counting flag is ON whenever the Counter Unit is counting. This flag will remain ON from when the start signal resets the counter to the preset value until the current counter value reaches 0. Even if external outputs #4 to #7 remain ON after the current counter value reaches 0, the counting flag will be OFF. The RUN indicator will be lit when the counting flag is ON.

IN1 Flag Word n+4, bit 02

The IN1 flag indicates the status of control input IN1. When the flag is ON, the input is high; when the flag is OFF, the input is low. This flag can be accessed during counting.

Transfer Completed Flag Word n+4, bit 04

The transfer completed flag is inverted following completion of TRANSFER DATA.

Error Flag Word n+4, bit 05

The error flag is turned ON whenever an error has occurred. Information on the type and location of the error is available in IR word n+5 upon execution of READ ERROR.

READ ERROR Command Word n, bit 05

READ ERROR can be set to access information on the error whenever the error flag is ON. Error information is output to IR word n+5. If more than one error has

Preset Mode Section 4-3

occurred, information on other errors can be output to IR word n+5 by again setting READ ERROR.

Error Location Word n+5, bit 07 through 00

The error location gives the rightmost two digits of the DM address, i.e., the bit number, where the data causing the error is stored.

Error Code Word n+5, bit 15 through 08

Error codes indicate the nature of the error and are given in Appendix A Error Code List.

Count Overflow Flag Word n+4, bit 06

The count overflow flag is turned ON when the counter value is incremented passed 8,388,607. This flag turns OFF when the next counting operation is started.

Reset Flag Word n+4, bit 07

The reset flag turns ON for one PC cycle time after the Counter Unit is reset.

Current Counter Value Word n+6 and n+7

The current counter value is accessible in words n+6 and n+7 as 6 BCD digits with a sign digit. In preset mode, the sign digit is always 0 (+).

Output Flags Word n+4 bits, 15 through 08

Output flag bits are ON whenever the corresponding output is ON. Output flags turn ON regardless of the status of ENABLE OUTPUT (word n, bit 02). Refer to 4-3-1 Data Allocation for specific flag bits.

Preset Mode Section 4-3

4-3-4 Timing Chart

The following chart shows timing relationships between the command bits (input bits) and output bits in preset mode when the counter is reset during the countdown.

Preset counter value

Counter value

START (word n, bit 00) or Control Input IN2*

Counting flag Word n + 4,

bit 00

RESET COUNTER Word n, bit 06

Internal outputs word n + 9

External outputs

Word n + 9 External outputs

Outputs to connector terminals

ENABLE OUTPUT

Word n, bit 02

a b

bbab

babba

ENABLE FORCED OUTPUT

Word n, bit 07

RUN indicator

Lit

Not lit

a: Normal outputs b: Forced outputs

4 4

*Pin 4 on the back-panel DIP switch determines which start signal is used. ON: IN2; OFF: START,

1, 2, 3... 1. The start signal is effective on its rising edge.

2. External outputs are not possible while ENABLE OUTPUT is OFF. The bit does not affect internal outputs.

3. The counter value and outputs are reset when RESET COUNTER is set.

Preset Mode Section 4-3

4. Forced outputs are possible only when the counting flag is OFF.

5. Normal operation is returned to when the start signal is set during forced output.

6. Forced outputs becomes inoperative during normal operation.

7. When RESET COUNTER is set during a forced output, the external out put is momentarily turned OFF, then restored to the status designated by the relevant force bit.

4-3-5 Application Example

Measuring and Cutting Rod System Configuration

Counter Unit

C200H PC

Encoder adapter

Outputs #0 through #2, and #4

Motor ON High/low

speed Brake

Output #0 Output #1

Output #2

Output #4

Cutter

Bobbin

An encoder adapter is required if the C200H-CT002 is used with an open-collector encoder.

Encoder

Inputs A and B

Motor Controller

Output

Motor

Operation A specific length wire rod is fed in and cut using the following controlling pro-

cedure.

1, 2, 3... 1. The motor is started at a low speed and the brake is turned OFF.

2. The motor speed is increased.

3. The motor speed is decreased just before the designated position.

4. The motor is stopped, taking the distance the motor moves by inertia into consideration.

5. The brake is turned ON immediately before the designated position.

6. The cutter is activated at the designated position.

Preset Mode Section 4-3

Counter preset value

Current counter value

Motor drive (Output #0)

High/Low speed (Output #1)

Brake (Output #2)

Cutter (Output #4)

OFF High

speed Low

speed OFF

ON ON OFF

Switch Settings In this example, the unit number switch is set to 1 and the mode switch is set

to 3. Pins 3 and 8 are turned ON on the back-panel DIP switch to designate offset phase inputs with a x2 input multiplier and to enable RESET COUNTER. All other pins on the DIP switch are turned OFF.

Setting example

Parameter Present counter value A B C D E T

Setting (ms) 10,000 100 150 200 0 50 500

Wiring

DM Area Settings

1, 2, 3... 1. Connect encoder outputs to inputs A and B.

2. Connect outputs #0, #1, and #2 to the motor controller inputs as follows:

#0: motor start switch; #1: high/low speed switch; #2: brake sig-

nal.

3. Connect output #4 to the input terminal of the cutter driver.

DM 1100 DM 1101 DM 1102 DM 1103 DM 1104 DM 1105 DM 1106 DM 1107 DM 1108 DM 1109 DM 1110 DM 1111 DM 1112 DM 1113 DM 1114 DM 1115 1 001

300

0010

0510

000

05 0 0050

–

0000 00 0000 0

000

–– ––––

Sets mode no. 3. A = 100

B = 150

C = 200

D = 0

E = 50

T = 500 ms

Preset = 10000 Output #4 only

Gate, Latch, and Sampling Modes Section 4-4

Program

RESET COUNTER

11006

Counter and outputs reset.

25315

(ON for one cycle)

25313 (usually ON)

START

Output #4

03001

MOV (21)

#0000

111

11004

11002

11000

DIFD (14) 03000

1100003000

03001

Preset number set (here, to

00). Programming within the dotted line can be omitted if the preset number is 00.

ENABLE OUTPUT turned ON.

START

Completion of cutter operation detected (OFF).

Outputs indicates completion of cutting.

4-4 Gate, Latch, and Sampling Modes

In gate, latch, and sampling modes counter values are incremented and decremented while the count signal is ON and according to any of the three types of input pulses. All three modes permit counting between –8,388,608 and 8,388,607. All modes but cumulative gate mode use control input IN1 as the count (start) signal. The cumulative gate mode uses control input IN1 as the reset signal and control input IN2 as the count (start) signal; latch mode uses control input IN2 as the latch signal. None of these modes support external outputs. Control inputs can be designated to originate in IR bits.

Gate, Latch, and Sampling Modes Section 4-4

4-4-1 Data Allocation

DM Area The DM area contains the user-input parameters that are to be set into the

Counter Unit. The first DM word for each Counter Unit is indicated by m and equals 1,000 plus 100 times the unit number.

Word Bit Function

m+1

m+2

through

m+99

07−00

11−08 15−12 03−00

07−04

11−08

15−12

Set to 0. Operating mode (Here, 4: gate; 5: latch; or 6: sampling) Set to 0. Control origin

0000: External (connector input) 0001: Internal (IR area)

Set to 0. Gate mode type (gate mode only)

0000: Normal 0001: Cumulative

Set to 0. Not used.

IR Area The IR area contains commands and status information. Inputs and outputs

Outputs

Inputs

Word Bit Function

n 00 Not used.

01 SET TIME command (sampling mode only) 02 Not used. 03 Internal IN1 04 Internal IN2. 05 READ ERROR command

15–06 Not used.

n+1 15–00 Sampling time, 4 digits in ms (sampling mode only) n+2

n+9

Word Bit Function

n+4 00 Counting flag.

01 Not used. 02 IN1 flag 03 IN2 flag 04 Not used. 05 Error flag 06 Count overflow flag.

15−07

n+5

07−00 15−08

Not used.

Not used. Error location Error code

Gate, Latch, and Sampling Modes Section 4-4

Word FunctionBit

n+6 n+7 n+8

n+9

Note 1. The RUN indicator will be lit whenever the counting flag (word n+4, bit 00)

is ON.

2. The external control inputs IN1 and IN2 must be ON for at least as long as the PC’s cycle time to ensure that they can be accurately read from the PC.

15−00 15−00

Current counter value, 6 digits with sign (–8,388,608 to 8,388,607)

Not used

4-4-2 DM Area Settings

Operating Mode DM word m, bits 11 through 08

The operating mode is set with the mode switch on the front panel. Refer to 1-4 Operating Modes for an overview of available modes.

Control Origin DM word m+1, bits 03 through 10

Control inputs (start, reset, and latch) can be designated as originating from the connector (control inputs IN1 and IN2) or from the IR area (internal IN1 and IN2). Designations are as follows:

0: External (connector input) 1: Internal (IR area)

Gate Mode Type (Gate Mode Only)

DM word m+1, bits 11 through 08

The gate mode type determines the use of control inputs IN1 and IN2. Refer to 1-4 Operating Modes for details. Designations are as follows:

0000: Normal 0001: Cumulative

4-4-3 IR Area Settings

SET TIME Command (Sampling Mode Only)

Sampling Time (Sampling Mode Only)

Control Inputs Internal IN1 or Control Input IN1

Word n, bit 01

SET TIME is turned ON to use the sampling time held in word n+1. The new sampling time is effective on the rising edge of SET TIME, unless the counting flag in ON, in which case the new sampling time is effective after completion of the current counting operation.

Word n+1

Set to between 0010 and 9999 in ms. The sampling time designates the time that pulses will be counted following con-

trol input IN1. Word n, bit 03 or external connector

Internal IN2 or Control Input IN2

Word n, bit 04 or external connector

The setting of the control origin, DM word m+1 bits 03 through 00, determines whether external signals or IR bits are used as the start, latch, and gate signals.

In cumulative gate mode (CT002 only), IN1 is the reset signal and IN2 the count signal. Pulses are counted while IN2 is ON. In normal gate mode, IN1 is the count signal and pulses are counted while it is ON.

Gate, Latch, and Sampling Modes Section 4-4

In sampling mode, IN1 is the count signal. In latch mode, IN1 is the count signal and IN2 the latch signal.

Error Flag Word n+4, bit 05

The error flag is turned ON whenever an error has occurred. Information on the type and location of the error is available in IR word n+5 upon execution of READ ERROR.

READ ERROR Command Word n, bit 05

READ ERROR can be set to access information on the error whenever the error flag is ON. Error information is output to IR word n+5. If more than one error has occurred, information on other errors can be output to IR word n+5 by again setting READ ERROR.

Error Location Word n+5, bit 07 through 00

The error location gives the rightmost two digits of the DM address, i.e., the bit number, where the data causing the error is stored.

Error Code Word n+5, bit 15 through 08

Error codes indicate the nature of the error and are given in Appendix A Error Code List.

Counting Flag Word n+4, bit 00

The counting flag is ON whenever the Counter Unit is counting.

IN1 Flag Word n+4, bit 02

The IN1 flag indicates the status of control input IN1. When the flag is ON, the input is high; when the flag is OFF, the input is low. This flag can be accessed during counting.

IN2 Flag Word n+4, bit 03

The IN2 flag indicates the status of control input IN2. When the flag is ON, the input is high; when the flag is OFF, the input is low. This flag can be accessed during counting.

Count Overflow Flag Word n+4, bit 06

The count overflow flag is turned ON when the counter value is incremented passed 8,388,607. This flag turns OFF when the next operation is started.

Current Counter Value Word n+6 and n+7

Between –8,388,608 and 8,388,607 The current counter value is accessible in words n+6 and n+7 as 6 BCD digits

with a sign digit.

4-4-4 Timing Charts

The following four charts show the relationship between the input and output bits in the two types of gate mode, the latch mode, and the sampling mode.

ÉÉ

Gate, Latch, and Sampling Modes Section 4-4

Normal Gate Mode

Control input IN1 (start/stop) External or internal (word n, bit 03)

Current counter value (words n+7 and n+6)

Counting flag (word n+4, bit 00)

1, 2, 3... 1. Counting starts from 0 on rising edge of IN1.

2. Counting stops on falling edge of IN1. The counter value at that time is

retained until the next IN1 signal. No external outputs are supported by the gate mode.

Cumulative Gate Mode (C200H-CT002 Only)

1212

Control input IN1 (reset) External or internal

(word n, bit 03)

Control input IN2 (count pulse)

External or internal (word n, bit 04)

Current counter value (Words n+7 and n+6)

Counting flag Word n+4, bit 00

1, 2, 3... 1. The current counter value is reset to zero on the leading edge of IN1.

2. Counting continues from the last current counter value on rising edge of

IN2.

3. Counting stops on falling edge of IN2. The counter value at that time is

retained until the next IN1 signal. No outputs are supported by the gate mode.

Gate, Latch, and Sampling Modes Section 4-4

Latch Mode

Control input IN1 (start) External or internal

(word, bit 03)

Control input IN2 (latch signal)

External or internal (word n, bit 04)

Internal (actual) counter value

Current counter value (words n+7 and n+6)

Counting flag (word n + 4, bit 00)

1, 2, 3... 1. Counting starts from 0 on the rising edge of IN1.

2. The current counter value is latched (frozen) on the rising edge of IN2

(latch signal) and latched value is maintained until the next IN2 or IN1 signal.

3. The internal counter value continues to be incremented and decrem-

ented without being affected by the latch signal.

4. Both the internal current counter values are reset to 0 on the next IN1

signal. No outputs are supported by the latch mode.

Gate, Latch, and Sampling Modes Section 4-4

Sampling Mode

Control input IN1 (start) External or internal

(word n, bit 03)

Sampling time (word n+1)

SET TIME (word n, bit 1)

Counting flag (word n+4, bit 00)

Current counter value (words n+7 and n+6)

T1 T2

Sampling time Word n + 1

1, 2, 3... 1. The sampling time is set from word n+1 before starting.

2. Counting starts from 0 on the rising edge of IN1. After expiration of the

sampling time, the count stops and the counter value is retained until the next IN1 signal.

3. When SET DATA is turned ON while the counting flag is ON, the new

sampling time is set after completion of the counting operation and used for the next counting operation. No external outputs are supported by the sampling mode.

Note Set up the system so that control input IN1 turns ON after setting the sam-

pling time has been completed. The following is an example for internal control input 1.

Sampling time

Setting of the sampling time

Internal control input 1

Counting flag

OFF

Scan

Sampling time

Current count value

Gate, Latch, and Sampling Modes Section 4-4

4-4-5 Application Examples

Gate Mode: Measuring Product Length System Configuration

Counter Unit

Photoelectric switch for detecting product

Product

Control Input IN1

Inputs A and B

Encoder adapter

An encoder adapter is required if the C200H-CT002 is used with an opencollector encoder.

Encoder

C200H PC

Operation This example system counts encoder inputs while the photoelectric switch is

ON to measure the lengths of products on a conveyor. The PC uses the resulting length measurements to determine if product lengths are within standards.

Switch Settings In this example, the unit number selector is set to and 1 and the mode selec-

tor is set to 4. All pins are turned OFF on the back panel DIP switch to designate offset phase

inputs with no input multiplier.

Wiring

1, 2, 3... 1. Connect encoder outputs to inputs A and B.

2. Connect the photoelectric switch output to control input IN1.

DM Area Settings

DM 1100 0 4 0 0

Sets the mode to 4 (gate). Designates use of control IN1

0000DM 1101

from the connector (not the internal IN1) and normal gate mode (not cumulative).

Gate, Latch, and Sampling Modes Section 4-4

Program

11400

25313

03000

11400

25313

03000

11400

Counting flag

CY flag 25504

DIFD (14) 03000

Normally ON

CLC (41)

SUBL (55)

DM 0000 DM 0004

KEEP

00000

CLC (41)

SUBL (55)

DM 0002 DM 0004 S

KEEP 00002

116

Compares counter value to minimum value

Output when length is shorter than the standard.

116

Compares counter value to maximum value.

Output when length is longer than the standard.

Comparison Data

DM 0000 DM 0001

DM 0002 DM 0003

DM 0004 DM 0005

Min.

Max.

Results

1140000000 00002

00000 ON

00001 ON

00002 ON

Output when length

00001

is within standards.

Resulting Outputs

Too short

Length acceptable

Too long

Gate, Latch, and Sampling Modes Section 4-4

Latch Mode: Monitoring Quantity at a Processing Station System Configuration

An encoder adapter is required if the C200H-CT002 is used with an open-collector encoder

Control switch (control input IN1)

Latch switch (Control input IN2)

Encoder adapter

Photoelectric switch for detecting discharged workpieces (decrement, input B)

Flow Flow

Photoelectric switch for detecting fed workpieces (increment, input A)

Processing station

Operation This example system monitors the number of work pieces in the processing

station and displays the currently latched number on a seven-segment indicator.

Transistor Output Unit C200H-OD211

C200H PC

Indicator

Output data

Strobe 0

Transistor Output Unit

11–8

Strobe signal

Sign, 10

7–4

3–0

, 104, 102, 100 data

101, 10

Sign 10610510410310210110

01234567

, 103, 101, data

103, 10

105, 10

107, 10

101, 10

Strobe 1

Strobe 2

Strobe 3

PC cycle time

Gate, Latch, and Sampling Modes Section 4-4

Switch Settings In this example, the unit number selector is set to 1 and the mode selector is

set to 5. All pins except number 1 are turned OFF on the back panel DIP switch to designate increment/decrement inputs.

Wiring

1, 2, 3... 1. Connect the photoelectric switch outputs to input A (increment) and the

input B (decrement).

2. Connect the count switch to control input IN1.

3. Connect the latch switch to control input IN2.

DM Area Settings

DM 1100 DM 110100500

Sets the mode to 5 (latch).

Designates use of control input IN1 from the connector (not the internal IN1).

Gate, Latch, and Sampling Modes Section 4-4

Program

25315

03000

03001

03002

03003

(ON for one cycle.)

MOV (21)

#1111

030

ANDW (34)

116

#00FF

001

MOVD (83)

116

#0012

001

ANDW (34)

117

#00FF

001

Initializes strobe data.

Outputs 10

and 100 when strobe 0 = ”1”

and 102 when strobe 1 = ”1”

and 104 when strobe 2 = ”1”

25313

03015

25313

Normally On

MOVD (83)

117

#0012

001

MOVD (83)

030

#0200

001

STC (40)

CLC (41)

ROL (27)

030

Outputs 10

Strobe signal output

Rotating the strobe data counterclockwise

and 106 when strobe 3 = ”1”

Gate, Latch, and Sampling Modes Section 4-4

Sampling Mode Example 1: Weighing Objects System Configuration

Counter Unit

Control input IN1

C200H PC

Encoder

Encoder adapter

Inputs A and B

Proximity switch for count signal

An encoder adapter is required if the C200H-CT002 is used with an open-collector encoder.

Operation In this example system, encoder pulses are counted for a fixed period after

placing an object onto a scale. The weight of the object is measured only after all vibration has stopped.

Switch Settings In this example, the unit number selector is set to 1 and the mode selector is

set to 6. All pins except pins number 2 and 3 are turned OFF on the back panel DIP switch to designate offset phase inputs with a x4 input multiplier.

Wiring

1, 2, 3... 1. 1Connect the incremental encoder outputs to the inputs A and B.

2. Connect the proximity switch output to control input IN1.

DM Area Settings

DM 1100 DM 110100600

Sets the mode to 6 (sampling).

Designates use of control input IN1 from the connector (not the internal IN1).

Gate, Latch, and Sampling Modes Section 4-4

Program

25315 (ON for one cycle.)

11400 Counting flag

03000

MOV (21)

#3000

111

11001

DIFD (14) 03000

MOV (21)

116

DM 0000

MOV (21)

117

DM 0001

Sets the sampling time to 3 s.

SET TIME

Detects the completion of weighing (OFF during counting).

The current counter value is stored in DM 0000 and DM 0001 when the weighing is completed.

Sampling Mode Example 2: Measuring Speed System Configuration

Input A

An encoder adapter is required if the CT002 is used with an open-collector encoder.

Encoder (single) Resolution: 200 pulses/revolution

Motor

Counter Unit

Encoder adapter

C200H PC

Operation This example system counts, for a specific interval, pulses from an incremen-

tal encoder that is directly connected to a rotating shaft. The PC then converts the pulse count into a shaft speed (rpm). Here, the speed in rpm would

Gate, Latch, and Sampling Modes Section 4-4

be the number of pulses per second times 60 divided by the number of pulses per shaft rotation (i.e., 200), or 0.3 times the pulse count per second.

Switch Settings In this examples, the unit number selector is set to 1 and the mode selector

is set to 6. All pins except pins 1 and 2 are turned OFF on the back panel DIP switch to designate pulse and direction inputs.

Wiring

1, 2, 3... 1. Connect the incremental encoder output to the inputs A.

2. Do not connect any output to input B, and set the counter to increment.

DM Area Settings

DM 1100 DM 110100600

Sets the mode to 6 (sampling).

Designates use of internal IN1 from the PC (not control input IN1).

Gate, Latch, and Sampling Modes Section 4-4

Program

25313 Normally ON.

MOV (21)

#1000

111

1101

MOV (21)

#0003

DM 0000

MOV (21)

#0000

DM 0001

Sets the sampling time to 1,000 ms.

Inputs 0000 and 0003 to DM 0000 and DM 0001, respectively.

TIM001

TIM000

11400

MOV (21)

#0010

DM 0002

MOV (21)

#0000

DM 0003

TIM 000

TIM 001

11003

MULL (56)

DM 0000

116

DM 0004

DIVL (57)

DM 0004 DM 0002 DM 0004

Inputs 0000 and 0010 to DM 0002 and DM 0003, respectively.

Turn the internal IN1 signal ON and OFF every 3 seconds.

Multiplies the counter value by 0.3 when the counting flag turns OFF and stores the results in DM 0004 and DM 0005.

SECTION 5

Error Processing

This section presents possible errors and solutions and describes how to handle errors from the PC. The AR area Error and Restart Flags are described.

5-1 Error Indications 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2 Troubleshooting from the PC 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting from the PC Section 5-2

5-1 Error Indications

When an error occurs, the ERROR indicator will light and the error flag will turn ON. Error information is then output to IR word n+5 when READ ERROR is set. READ ERROR can be set as many times as necessary to access further error information. (Information for up to 30 errors will be saved in the system.)

Error information in IR word n+5 consists of the error location, which indicates the last two digits of the DM address where the error originates, and the error code, which classifies the error (Refer to Appendix A Error Code List). The error location is held in bits 07 through 00; the error, in bits 15 through 08.

If the counter value overflows, the ERROR indicator will light and the counter overflow flag will turn ON. The error flag will not turn ON for counter overflows, and error information will not be output to IR word n+5.

If an error occurs, correct the cause of the error and clear all PC error flags. Error information and the Counter Unit error flag will be cleared after all errors are read out with READ ERROR.

5-2 Troubleshooting from the PC

Errors in the Counter Unit can be monitored from the PC. The Counter Unit is monitored as a Special I/O Unit, and as such is treated the same as a Position Control Unit or any other Special I/O Unit.

Error List for Special I/O Units

Error Possible cause and status Correction

Waiting for Special I/O Unit startup.

•Special I/O Unit has a hardware

malfunction.

•PC will not begin operation.

Too many Special I/O Units.

•Same unit number has been

assigned to more than one Special I/O Unit.

•PC will not begin operation.

•SR bit 25415 is ON.

Error in Special I/O Unit.

•Refreshing was not normally

executed between CPU and the Special I/O Unit.

•Only the malfunctioning Unit will

stop operation.

•SR bit 25415 is ON.

•Replace the Special

I/O Unit with a new Unit. (The malfunctioning Unit displays only $s when I/O table is read.)

•Set unit numbers so that each

is used only once (Unit numbers can be accessed by reading I/O table.)

•Obtain the malfunctioning Unit number by

reading AR bits 0000 to 0009, remove the cause of the error, and then restart by turning OFF, ON, then back off the appropriate restart flag (AR bits 0100 to 0109). If the Counter Unit does not recover normal operation after restarting, replace it with a new one.

Troubleshooting from the PC Section 5-2

AR Area Error and Restart Flags for Special I/O Units

Error Flags The following error flags will turn ON when the same unit number is assigned

to more than one Special I/O Unit, or when the refreshing operation between the PC and the Special I/O Unit is not normally executed.

Bit Unit number

AR 000 0 AR 001 1 AR 002 2 AR 003 3 AR 004 4 AR 005 5 AR 006 6 AR 007 7 AR 008 8 AR 009 9

Restart Flags The following restart flags are turned ON and OFF to restart Special I/O

Units. It is not necessary to turn OFF Counter Unit power when its restart flag is used.

Bit Unit number

AR 0100 0 AR 0101 1 AR 0102 2 AR 0103 3 AR 0104 4 AR 0105 5 AR 0106 6 AR 0107 7 AR 0108 8 AR 0109 9

Appendix A

Error Codes

Code Error type Meaning

11 Numeric 12 Counting range

14 Inconsistent data

15 Parameter error

32 Counter preset 33 Transfer range no./transfer preset no.

34 Beginning word no. The beginning word number for TRANSFER DATA is not acceptable. 35 Data area 36 Number of transfers

Data is not BCD or data is 0. Data is less than –8,388,608 or greater than

8,388,607. (Circular mode: data is less than 0 or greater than 65,535.) The mode setting on the front panel and the operating mode set in DM

area are inconsistent, or upper and lower settings for ranges are reversed.

Error in parameters other than those covered under codes 11, 12, and 14, above.

The counter preset number is not between 00 and 19. The range number for TRANSFER DATA is not between 00 and 15

transfer preset no. or the preset number for TRANSFER DATA is not between 00 and 19.

The data area number for TRANSFER DATA is not acceptable. The number of transfers exceeds the specified maximum or is set to 0.

Appendix B

Specifications

Item Specification

Number of axes One per Counter Unit Operating modes Any of the following six:

Linear mode Circular mode Preset mode Gate mode Latch mode Sampling mode

Count input signals Input A

Input B

Counting signal level

Input modes

Counting speed

Other Input signals

External signal level

External outputs 8 total Output level

Internal consumption 300 mA max. at 5 VDC (supplied from rack). Weight 400 g max. (excluding connectors).

CT001-V1: 5, 12, or 24 VDC (Selected when wiring). CT002: Same as RS-422 line driver (Am26LS31-compatible).

Offset phases Separate up and down inputs Pulse and direction inputs

CT001-V1: 50 kcps max. CT002: 75 kcps max. (Depends on encoder when using offset phase inputs. Refer to 3-2-1 Offset phases).

Input multiplier (x2 or x4) available for offset phase inputs. Input Z

Control input IN1 Control input IN2

CT001-V1: 5, 12, or 24 VDC (Selected when wiring). CT002: Same as RS-422 line driver (Am26LS31-compatible).

External output power supply: 5 to 24 VDC Switching capacity: 16 to 80 mA

Maximum Required Response Speed (Pulse Input to Output)

No. of ranges Linear mode Circular mode

1 0.74 ms 0.66 ms 8 1.17 ms 1.02 ms 16 1.40 ms 1.10 ms

Note Add the I/O refresh time (approximately 3 ms) to the values in the above table to

compute the response speed when the I/O refresh timing differs from the output timing.

Specifications Appendix B

I/O Specifications Output Specifications (Outputs 0 through 7)

Item Specification

Switching capacity

Leak current 0.1 mA max. Residual voltage 0.4 V max. ON/OFF response time High-speed counting process time 0.3 ms External power supply 5 to 24 VDC + 10% (50 mA max. at 26.4 VDC) Switching capacity

6 mA at 4.5 VDC to 80 mA at 26.4 VDC (Refer to table below.) Maximum: 320 mA/common

Maximum Switching Capacity: Power Supply Characteristic. The maximum switching capacity is determined by the power supply as shown in the following diagram:

0 4.5 10 20.4 26.4

Switching capacity

External power supply

Omron SYSMAC C200H-CT001-V1, SYSMAC C200H-CT002-V1 Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Notice:

TABLE OF CONTENTS

About this Manual:

PRECAUTIONS

1 Intended Audience

2 General Precautions

3Safety Precautions

4 Operating Environment Precautions

5Application Precautions

1-1 Introduction

1-2 Nomenclature

1-3 System Configuration

1-4 Operating Modes

2-1 Switch Settings

2-2 Wiring

2-3 Input Circuit Wiring Examples

2-3-1 C200H-CT001-V1

2-3-2 C200H-CT002

2-4 Dimensions

3-1 Operational Flow

3-2 Input Selection

3-2-1 Offset Phases

3-2-2 Up and Down Pulses

3-2-3 Pulse and Direction

3-3 Counter Reset Conditions

3-4 Data Transfer Timing

4-1 Data Configuration and Allocation

4-2 Linear and Circular Modes

4-2-1 Data Allocation

4-2-2 DM Area Settings

4-2-3 IR Area Settings

4-2-4 Timing Chart

4-2-5 Application Examples

4-3 Preset Mode

4-3-1 Data Allocation

4-3-2 DM Area Settings

4-3-3 IR Area Settings

4-3-4 Timing Chart

4-3-5 Application Example

4-4 Gate, Latch, and Sampling Modes

4-4-1 Data Allocation

4-4-2 DM Area Settings

4-4-3 IR Area Settings

4-4-4 Timing Charts

4-4-5 Application Examples

5-1 Error Indications

5-2 Troubleshooting from the PC