Omron C200H-CT021 Operation Manual
C200H-CT021
High-speed Counter Unit
Operation Manual
Revised December 2000
iv
v
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 the product.
!DANGER
Indicates information that, if not heeded, is likely to result in loss of life or serious injury.
!WARNING
Indicates information that, if not heeded, could possibly result in loss of life or serious
injury.
!Caution
Indicates information that, if not heeded, could result in relatively serious or minor injury,
damage to the product, or faulty operation.
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 any-
thing else.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of
information.
Note Indicates information of particular interest for efficient and convenient opera-
tion of the product.
1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
OMRON, 1996
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, o
r
by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o
f
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.
vi
vii
TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xv
SECTION 1
Features and System Configuration . . . . . . . . . . . . . . . . . . . 1
1-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SECTION 2
Specifications and Components. . . . . . . . . . . . . . . . . . . . . . . 5
2-1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-2 High-speed Counter Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SECTION 3
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3-1 External Connector Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3-2 Connector Wiring Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3-3 I/O Circuit Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3-4 Wiring Examples of Encoder Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3-5 Wiring Example of External Control Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3-6 Example of External Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SECTION 4
Functions and Operating Modes. . . . . . . . . . . . . . . . . . . . . . 25
4-1 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4-2 DM and IR Bit Allocation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
4-3 Linear Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4-4 Circular Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4-5 Preset Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4-6 Gate Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4-7 Cumulative Gate Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
4-8 Sampling Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4-9 Input Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4-10 Counter Reset Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
4-11 Data Processing with PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
viii
TABLE OF CONTENTS
SECTION 5
DM Area Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5-1 DM Area Allocation in Simple Counter Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5-2 DM Area Allocation in Linear and Circular Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
5-3 DM Area Allocation in Preset Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
5-4 DM Area Allocation in Gate, Cumulative Gate, and Sampling Modes . . . . . . . . . . . . . . . . 60
SECTION 6
Guidance for Program Development . . . . . . . . . . . . . . . . . . 63
6-1 Operating Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6-2 Unit Number Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
SECTION 7
Program Development with Drum Function . . . . . . . . . . . . 67
7-1 Performance Specifications of Drum Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7-2 DM Area Settings and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7-3 IR Area Settings and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
7-4 I/O Signal Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
7-5 Data Transfer Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
7-6 Program Example for Linear Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
7-7 Program Example for Circular Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
SECTION 8
Program Development with Preset Function . . . . . . . . . . . . 85
8-1 Performance Specifications of Preset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
8-2 DM Area Settings and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
8-3 IR Area Settings and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
8-4 I/O Signal Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
8-5 Data Transfer Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
8-6 Program Example for Preset Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
SECTION 9
Program Development with Counting Function . . . . . . . . . 101
9-1 Performance Specifications of Counting Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
9-2 DM Area Settings and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
9-3 IR Area Settings and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
9-4 I/O Signal Timing Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
9-5 Program Example for Gate Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
9-6 Program Example for Cumulative Gate Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
9-7 Program Example 1 for Sampling Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
9-8 Program Example 2 for Sampling Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
ix
TABLE OF CONTENTS
SECTION 10
Using IORD and IOWR Instructions . . . . . . . . . . . . . . . . . . 115
10-1 IORD and IOWR Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
10-2 Control Codes of IORD and IOWR Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
10-3 Types of Data Written with IOWR Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
10-4 Program Examples with IORD Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
10-5 Program Examples with IOWR Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
10-6 Flags Used for IOWR Instruction and Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
SECTION 11
Error Processing and Troubleshooting . . . . . . . . . . . . . . . . 127
11-1 Error Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
11-2 Errors Monitored with CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Appendices
A Comparison with C200H-CT001-V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
B Data Area Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
C DM Coding Sheet Unit Number
@
: DM
@@
00 to DM @@99 . . . . . . . . . . . . . . . . . . . . . . 145
D Using with CS1-series PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
xi
About this Manual:
This manual describes the installation and operation of the C200H-CT021 High-speed Counter Unit
and includes the sections described below.
Please read this manual carefully and be sure you understand the information provided before
attempting to install and operate the C200H-CT021 High-speed Counter Unit. Be sure to read the
precautions in the next section.
Section 1 provides a list of features and a system configuration example.
Section 2 provides the Unit’s basic specifications and describes its major components.
Section 3 explains how to connect various input and output devices to the High-speed Counter Unit.
Section 4 describes the High-speed Counter Unit functions and their operating modes.
Section 5 provides information on the DM and IR bit allocation in each mode.
Section 6 describes the steps required to operate the High-speed Counter Unit in each mode, the DM
required for unit number settings, and IR bit allocation.
Section 7 describes program development using the drum function in linear and circular modes.
Section 8 describes program development using the preset function.
Section 9 describes program development using the counting function in gate, latch, and sampling
modes.
Section 10 provide information on using the IORD and IOWR instructions.
Section 11 provides information on error processing and troubleshooting procedures.
The Appendices provide a comparison with the C200H-CT001-V1, information on data area allocation, and a DM coding sheet.
!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.
xiii
PRECAUTIONS
This section provides general precautions for using the Programmable Controller (PC) and the High-speed Counter
Unit.
The information contained in this section is important for the safe and reliable application of the PC and the
High-speed Counter Unit. You must read this section and understand the information contained before
attempting to set up or operate a PC system.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
4 Operating Environment Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
xiv
Intended Audience 1
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 operation 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 OMRON
PCs and the High-speed Counter Unit. Be sure to read this manual before
attempting to use the High-speed Counter Unit and keep this manual close at
hand for reference during operation.
!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 abovementioned 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.
!WARNING
Provide safety measures in external circuits (i.e., not in the Programmable
Controller), including the following items, in order to ensure safety in the system if an abnormality occurs due to malfunction of the PC or another external
factor affecting the PC operation. Not doing so may result in serious accidents.
• Emergency stop circuits, interlock circuits, limit circuits, and similar safety
measures must be provided in external control circuits.
xv
Operating Environment Precautions 4
• The PC will turn OFF all outputs when its self-diagnosis function detects
any error or when a severe failure alarm (FALS) instruction is executed.
As a countermeasure for such errors, external safety measures must be
provided to ensure safety in the system.
• The PC outputs may remain ON or OFF due to deposition or burning of
the output relays or destruction of the output transistors. As a countermeasure for such problems, external safety measures must be provided
to ensure safety in the system.
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.
!Caution
The operating environment of the PC system can have a large effect on the
longevity 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 I/O Units, CPU Units, Memory Units, or any
other Units.
• Assembling the Units.
xvi
Application Precautions 5
• 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.
• 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 com-
pletely.
• 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.
xvii
Application Precautions 5
• 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.
1
SECTION 1
Features and System Configuration
This section provides a list of features and a system configuration example.
1-1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Fe at ur es Section 1-1
1-1 Features
The C200H-CT021 High-speed Counter is a Special I/O Unit for the C200H,
C200HS, C200HX, C200HG, and C200HE PCs.
The High-speed Counter Unit has the following features.
Two Built-in Counters The High-speed Counter Unit has two high-speed increment/decrement
counters, each of which can be connected to an incremental encoder with
open collector output to count line driver input pulses at a rate of 75,000 cps
max.
Built-in Line Driver Input
Circuit
An encoder with RS-422 line driver output can be directly connected to the
High-speed Counter Unit. Line driver input resists noise, thus making it possible to connect the encoder to the High-speed Counter Unit through a long
cable or to wire the cable in places where noise may be generated.
An open collector output from an encoder can be connected as a line driver
input to the High-speed Counter Unit through the C500-AE001 Encoder Conversion Adapter.
Counts in BCD or
Hexadecimal
The High-speed Counter Unit can count BCD or hexadecimal values.
The following are the available counting ranges.
BCD: –8,388,608 to 8,388,607
Hexadecimal: 800000 to FFFFFF (–8,388,608 to –1) and 000000 to
7FFFFF (0 to 8,388,607)
Refer to page 10 for the data configuration of the count value in hexadecimal.
Seven Operating Modes The High-speed Counter Unit has the following three functions and seven
operating modes. None of the three functions are available to the High-speed
Counter Unit in simple counter mode, which is the basic operating mode of
the High-speed Counter Unit.
Simple Counter Mode: Counts the number of input pulses.
Drum Function
Linear Mode: Controls outputs when the count value is in a preset range.
The High-speed Counter Unit counts the number of pulses
within the available counting ranges.
Circular Mode: Controls outputs when the count value is within a preset
range. The High-speed Counter Unit counts the number of
pulses from zero to the maximum countable value preset with
the High-speed Counter Unit. The count value is reset to zero
after it reaches the maximum countable value.
Preset Counter Function
Preset Mode: Controls outputs after counting a preset value.
Counting Function
Gate Mode: Counts the number of pulses only while the control
input signal is turned ON.
Cumulative Gate Mode: Accumulates the number of pulses whenever the
control input signal is turned ON.
Sampling Mode: Counts the number of pulses for a preset interval
from the rising edge of the control signal.
Eight Types of External
Outputs
The High-speed Counter Unit has eight external outputs, either NPN or PNP.
Three Types of Pulse
Inputs
The following three types of pulse inputs are available.
• Offset phase inputs
3
System Configuration Section 1-2
• Up and down pulse inputs
• Pulse and direction inputs
The High-speed Counter Unit has a function to multiply offset phase inputs by
two or four. The resolution of the High-speed Counter Unit can be increased in
proportion to the number of pulses input from encoders.
Change Present and Set
Values During High-speed
Counter Unit Operation
The High-speed Counter Unit in normal operation uses settings that are read
when the High-speed Counter Unit is turned ON. The settings, which include
the present counter values of the High-speed Counter Unit, can be changed
anytime.
1-2 System Configuration
Discriminating Product
Sizes
In the following example, the size of each product on the belt conveyor is measured and improper-sized products are removed from the line using the solenoid.
The High-speed Counter Unit counts the number of pulses that is input from
the encoder while each product is passing between the emitter and receiver of
the through-beam photoelectric sensor.
When the count value of a product is not within the range preset with the
High-speed Counter Unit, the solenoid will be activated and the product will be
removed from the line.
C200H-OA221
AC Output Unit
C200H-CT021
High-speed Counter Unit
Solenoid:
Used to remove
improper-sized
products.
Through-beam
Photoelectric Sensor:
Used to sense the
products.
Incremental Encoder:
Used to sense the speed
of the belt conveyor.
Motor
Belt conveyor
C200HX
Incremental
encoder output
Photoelectric
sensor output
Count value
Discrimination
criteria
Reject OK Reject
4
System Configuration Section 1-2
Number of Mounted Units The maximum number of High-speed Counter Units and other Special I/O
Units that can be mounted to the C200HX, C200HG, or C200HE CPU Rack,
Expansion I/O Rack, or Slave Rack is 16 and the maximum number of those
mounted to any other PC is 10.
Note 1. A maximum of four High-speed Counter Units can be mounted to the Slave
Rack.
2. Do not mount the High-speed Counter Unit to the two slots on the right of
the CPU.
3. Do not mount the High-speed Counter Unit to the Slave Rack if the IORD
or IOWR instruction is to be used with the C200HX, C200HG, or C200HE.
5
SECTION 2
Specifications and Components
This section provides the Unit’s basic specifications and describes its major components.
2-1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-1-1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-1-2 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-1-3 I/O Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2-1-4 Counting Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2-1-5 BCD or Hexadecimal Count Values. . . . . . . . . . . . . . . . . . . . . . . . . 10
2-1-6 Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2-1-7 Dimensions with High-speed Counter Unit Mounted . . . . . . . . . . . 11
2-2 High-speed Counter Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2-2-1 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2-2-2 Indicator Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2-2-3 Switch Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2-2-4 Rear Setting Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6
Specifications Section 2-1
2-1 Specifications
2-1-1 General Specifications
The general specifications conform to the C-series specifications.
2-1-2 Characteristics
Item Specification
Number of counters 2
Operating modes Simple counter, linear counter, circular counter, preset
counter, gate counter, cumulative gate counter, and sampling modes.
Count
inputs
Input signals Counter 1 inputs A and B and counter 2 inputs A and B
Signal levels RS-422 line driver signal (equivalent to Am26LSS31), 12
or 24 VDC (selectable)
Ty p e s o f
inputs
Offset phase inputs
Up and down pulse inputs
Pulse+direction inputs
Counting rate Voltage input: 50,000 cps max. at a line driver input rate
of 75,000 cps max.
The counting speed of the number of offset phase input
pulses varies with the encoder. Refer to page 9 for details.
Others The multiple function (x 1, x 2, or x 4) can be selected for
offset phase input
External
inputs
Input signal Counter 1 input Z, Counter 2 input Z
Signal levels RS-422 line driver signal (equivalent to Am26LSS31), 12
or 24 VDC (selectable)
Input signal Counter 1 external control input IN1
Counter 1 external control input IN2
Counter 2 external control input IN1
Counter 2 external control input IN2
Signal levels 12 VDC and 24 VDC
External
outputs
Outputs External outputs 0 to 7, 8 points
NPN or PNP output (selectable)
Switching
capacity
Output power supply: 16 to 80 mA at 5 to 24 VDC
Internal current consumption
400 mA max. at 5 VDC (Supplied from Backplane.)
Dimensions (mm) 130 × 35 × 100.5 (H × W × D)
Weight 305 g (excluding connectors)
7
Specifications Section 2-1
2-1-3 I/O Electrical Specifications
Input Characteristics
Item Counter inputs A, B, and Z External
control inputs
IN1 and IN2
Input voltage 12 VDC ±10% 24 VDC ±10% RS-422 line driver 12 to 24 VDC
±10%
Input current 14 mA (typical) at each voltage (12.9 to
17.1 mA)
Conform to RS-422 line driver
(Am26LS31) specifications.
4 to 11 mA
ON voltage
(min.)
5.6 VDC 15.2 VDC 10.2 VDC
OFF voltage
(max.)
2.4 VDC 4.8 VDC 3.0 VDC
ON/OFF
response
time (max.)
--- --- 0.1 ms
Minimum
response
pulse
Counter Inputs A and B
Waveform
Input rising time/calling time: 3 µs max. at
50 kHz with pulses with a duty factor of
50%
10 µs
min.
3 µs max.3 µs max.
Relationship between A and B phases with
offset phase input
20 µs min.
Phase B
T1, T2, T3, and T4: 4.5 µs min.
The switching time between A and B
phases must be 4.5 µs min.
Counter Input Z
A pulse width of 100 µs min. is required.
100 µs
min.
100 µs
min.
20 µs min.
min.
10 µs
Phase A
Counter Inputs A and B
Waveform
At 75 kHz with pulses with a duty
factor of 50%
13.3 µs min.
6.7 µs
min.
6.7 µs
min.
0 V
Relationship between A and B
phases with offset phase input
Phase A
Phase B 0 V
0 V
T1 and T2: 3.2 µs min.
The switching time between A and B
phases must be 3.2 µs min.
Counter Input Z
A pulse width of 100 µs min. is
required.
100 µs min. 100 µs min.
0 V
When
accessing
these signals
from the PC,
the signals
must be ON
longer than the
PC's c
ycle time.
0.1 ms min.
0.1 ms min.
8
Specifications Section 2-1
Output Characteristics
The maximum switching current depends upon the power supply voltage, as
shown below.
Note The output current must not exceed 0.5 A per common (i.e., eight points), oth-
erwise the built-in fuse will blow out. The built-in fuse cannot be replaced by
the user.
Item External Outputs 0 to 7
Max. switching capacity 16 mA at 4.5 VDC to 80 mA at 26.4 VDC
(See the following graph.)
320 mA max./common
Leakage current 0.1 A max.
Residual voltage 0.8 V max.
ON/OFF response time 0.2 ms max.
External power supply 5 to 24 VDC ±10% (50 mA max. at 26.4 VDC)
(VDC)
80
50
16
External power supply voltage
Maximum switching capacity
9
Specifications Section 2-1
2-1-4 Counting Speed
The maximum response pulse frequency of the High-speed Counter for offset
phase inputs is determined with the type of increment encoder connected to
the High-speed Counter. In this following example, OMRON’s E6B-CWZ3C
Encoder is connected to the High-speed Counter.
Example:E6B-CWZ3C (500 pulses/time)
Ratings
Clockwise (CW) Rotation Phase A is advanced
1
⁄4±1⁄8T phase ahead of phase B.
Counterclockwise (CCW)
Rotation
Phase A is delayed
1
⁄4±1⁄8T phase behind phase B.
Item Specification
Power supply voltage 5 VDC (–5%) to 12 V (+10%) with a peak-to-peak rip-
ple rate of 5% max.
Current consumption 50 mA max.
Resolution (P/R) 500
Output phases Phase A, phase B, phase Z
Output type Open collector output
Output capacity Applied voltage: 30 VDC max.
Sink current: 80 mA max.
Residual voltage:
1 V max (when the sink current is 80 mA)
0.4 V max (when the sink current is 20 mA)
Max. response frequency 30 KHz
Output phase difference
A/B phase difference 90°±45° (
1
⁄4±1⁄8T)
Output rise/fall time 1.0 µs max. (Control output voltage 5 V, load resis-
tance 1 KΩ, cord length 50 cm)
Phase A
Phase B
CW direction
1
⁄4T±1⁄8T (90°±45°)
1
⁄4T±1⁄8T (90°±45°)
(360°)
CCW direction
Phase A
Phase B
10
Specifications Section 2-1
The output offset phase is 90°±45°. Therefore, the greatest offset phase of the
encoder is 45° (i.e., 90° – 45°).
The Unit requires a minimum offset phase of 3.2 µs.
Thus:
Inverting the period yields the maximum frequency of 27.7K cps.
From the above, use the High-speed Counter at a maximum counting speed
of 27,000 cps if the High-speed Counter is connected to an encoder with a
maximum response frequency of 27,000 cps.
Note The pulse width of counter input Z must be 100 µs min. if the counter is reset
with a Z-phase input from the encoder at a repetition frequency of 2000 cps
max.
The repetition frequency of line driver input must be 1,000 cps when considering the software processing time.
2-1-5 BCD or Hexadecimal Count Values
The High-speed Counter Unit can set the present counter value and the upper
and lower limit count values in BCD or hexadecimal.
The High-speed Counter Unit can process hexadecimal values faster than
BCD values because it need not convert the hexadecimal values into BCD
values.
Refer to the following for the data configuration’s BCD and hexadecimal count
values.
BCD Example:Present counter value
The above is the data configuration of the present counter value stored in
words n+2 and n+3 of the data area.
Counting range: –8,388,608 to 8,388,607
Hexadecimal
The sign of the hexadecimal value is determined with 2’s complement of the
leftmost bit.
4.5 µ s
T
--------------
45°
360°
-----------<
(When the rise and fall of the Encoder's
output are equivalent.)
T36µs<
(T is the minimum pulse period that for
responses.)
1
T
---
1
36 µ s
------------- 27.7K cps=<
(78 revolutions/s when there are
500 pulses/revolution)
Sign
Set to 0.
Data within a range of 000000 to
FFFFFF is stored. Refer to the
following for the actual count values.
11
Specifications Section 2-1
Example:
In the following example, the count value is FFFFFF.
– {1000000
– (FFFFFF)} = – 1 = – 1
Hex. Hex. Hex. BCD
In the following example, the count value is 800000.
– {1000000
– (800000)} = – 800000 = – 8,388,608
Hex. Hex. Hex. BCD
Therefore the following counting range can be obtained.
Hexadecimal BCD
800000 (–8,388,608)
to to
FFFFFF (–1)
00
to to
7FFFFF (8,388607)
2-1-6 Dimensions
2-1-7 Dimensions with High-speed Counter Unit Mounted
Connecting
cable
Backplane
Approx. 200
12
High-speed Counter Unit Components Section 2-2
2-2 High-speed Counter Unit Components
2-2-1 Nomenclature
2-2-2 Indicator Functions
Indicator Name Function
RUN Operation Lit when the High-speed Counter is in normal
counting operation. Not lit when the High-speed
Counter stops counting pulses.
ERR Error Lit when an error, counter overflow, or counter
underflow results.
CH1 A Counter 1 input A Lit when counter 1 input A is ON.
B Counter 1 input B Lit when counter 1 input B is ON.
1 Counter 1 external
control input IN1
Lit when external control input IN1 is ON.
2 Counter 1 external
control input IN2
Lit when external control input IN2 is ON.
CH2 A Counter 2 input A Lit when counter 2 input A is ON.
B Counter 2 input B Lit when counter 2 input B is ON.
1 Counter 2 external
control input IN1
Lit when external control input IN1 is ON.
2 Counter 2 external
control input IN2
Lit when external control input IN2 is ON.
01234567 External output These indicators light when the corresponding
external output (0 through 7) is ON.
Indicators
Rotary switches
External connector
Rear setting
switch
Backplane
connector
13
High-speed Counter Unit Components Section 2-2
2-2-3 Switch Settings
There are two rotary switches on the front panel of the High-speed Counter
Unit, which can be used for unit number and operating mode settings.
Note 1. Be sure to turn OFF the High-speed Counter Unit before setting the unit
number and operating mode.
2. Use a flat-blade screwdriver for rotary switch settings.
3. Be sure not to damage the grooves of the rotary switches with the flat-
blade screwdriver. Do not leave either of the rotary switches set midway
between numbers. Otherwise a setting error may occur.
Note The unit number must not be same as the unit number of any other Special I/
O Unit or Position Control Unit in the same system, otherwise a setting error
will result. Each unit number in the system must be unique.
The unit number can be set within a range of 0 to 9 if the C200H, C200HS,
C200HE-CPU11/32/42(-Z), C200HG-CPU33/43(-Z), or C200HX-CPU34/44(Z) is used with the High-speed Counter Unit.
The operating mode must be set within a range of 0 to 6. Do not set the operating mode to 7, 8, or 9, otherwise the High-speed Counter Unit will not operate.
2-2-4 Rear Setting Switch
The rear setting switch of the High-speed Counter Unit is used to select the
output mode.
Switch Setting Function
MACHINE No. Unit number setting Set the switch within a range of 0 to F.
MODE Operating mode set-
ting
Set the switch within a range of 0 to 6.
0: Simple counter mode
1: Linear mode
2: Circular mode
3: Preset mode
4: Gate mode
5: Cumulative gate mode
6: Sampling mode
7 to 9: Not used
Switch Function
NPN Outputs 0 to 7 will be NPN outputs.
PNP Outputs 0 to 7 will be PNP outputs.
15
SECTION 3
Wiring
This section explains how to connect various input and output devices to the High-speed Counter Unit.
!WARNING
Do not touch the terminals while the power is being supplied. Otherwise
an electric shock may occur.
3-1 External Connector Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3-2 Connector Wiring Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3-3 I/O Circuit Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3-4 Wiring Examples of Encoder Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3-5 Wiring Example of External Control Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . 22
3-6 Example of External Output Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
16
External Connector Pins Section 3-1
3-1 External Connector Pins
The following table lists the allocation of the external connector pins on front
side of the High-speed Counter Unit.
Each external connector is attached with a soldering terminal (Fujitsu FCN361J040).
3-2 Connector Wiring Method
The connectors of the High-speed Counter Unit must be soldered.
!Caution
Do not remove the label on top of the High-speed Counter Unit before wiring
the connectors, otherwise wire cuttings may fall into the High-speed Counter
Unit and short-circuit the internal circuitry causing the Unit to malfunction.
!Caution
Be sure to remove the label on top of the High-speed Counter Unit after wiring
the connectors, otherwise the Unit in operation may overheat and malfunction.
!Caution
Make sure that all connectors are correctly connected to the High-speed
Counter Unit, otherwise the Unit may burn.
!Caution
Make sure that all connectors are wired correctly, otherwise the High-speed
Counter Unit may burn.
Note 1. The thickness of each wire connected to the High-speed Counter Unit
must be 0.3 mm
2
max.
Row B Pin no. Row A
Counter 1 external control input IN2:
12 or 24 VDC
20 Counter 2 external control input IN2:
12 or 24 VDC
Counter 1 external control input IN1:
12 or 24 VDC
19 Counter 2 external control input IN1:
12 or 24 VDC
Counter 1 external control input IN1/
IN2: COM
18 Counter 2 external control input IN1/
IN2: COM
Counter 1 input Z: 24 VDC 17 Counter 2 input Z: 24 VDC
Counter 1 input Z: 12 VDC 16 Counter 2 input Z: 12 VDC
Counter 1 input Z: + (Line driver) 15 Counter 2 input Z: + (Line driver)
Counter 1 input Z: – (Line driver) 0 V 14 Counter 2 input Z: – (Line driver) 0 V
Counter 1 input B: 24 VDC 13 Counter 2 input B: 24 VDC
Counter 1 input B: 12 VDC 12 Counter 2 input B: 12 VDC
Counter 1 input B: + (Line driver) 11 Counter 2 input B: + (Line driver)
Counter 1 input B: – (Line driver) 0 V 10 Counter 2 input B: – (Line driver) 0 V
Counter 1 input A: 24 VDC 9 Counter 2 input A: 24 VDC
Counter 1 input A: 12 VDC 8 Counter 2 input A: 12 VDC
Counter 1 input A: + (Line driver) 7 Counter 2 input A: + (Line driver)
Counter 1 input A: – (Line driver) 0 V 6 Counter 2 input A: – (Line driver) 0 V
External output 0 5 External output 4
External output 1 4 External output 5
External output 2 3 External output 6
External output 3 2 External output 7
External output 0 to 7 COM: 0 V 1 Power supply for external outputs 0
to 7: 5 to 24 VDC
17
Connector Wiring Method Section 3-2
2. Do not short-circuit any terminals when wiring. Covering each soldered
portion with an insulating tube is recommended.
3. When using multi-conductor cables, separate the input and output cables.
Wires
Cable Separation
Assembling Connectors
The following Fujitsu 360-series parts are available.
1. FCN-361J040-AU (solder terminal)
FCN-360C040-B (cover)
2. FCN-363J040 (solderless terminal housing)
FCN-363J-AU (contact)
3. FCN-367J040-AU/F (solderless terminal)
Insulating tube
Wire (Thickness: 0.3 mm
2
max.)
Connector
Connector terminal side
Input cable
Output cable
Two, M2 pan-head screws
(8 mm long)
Connector jack
Four, M2 nuts
Two, M2 pan-head screws
(10 mm long)
Case
Screw
18
I/O Circuit Configurations Section 3-3
Wiring Precautions Refer to the following for noise prevention when wiring counter inputs A, B,
and Z.
1,2,3... 1. Use shielded, twisted-pair cable and ground the shield to a resistance of
100 Ω max.
2. Make the wiring as short as possible and do not run the wires parallel to
lines that produce a lot of noise, such as high-power lines.
3. Try to use a separate stabilized power supply for the High-speed Counter
Unit and another power supply for other I/O.
4. Be sure not to reverse the polarity when wiring a line driver input.
5. Be sure to connect wires to a 5- to 24-VDC output power supply terminal
and COM (0 V) terminal correctly. If the wires are connected to these terminals reversely, the built-in fuse will blow out. The built-in fuse cannot be
replaced by the user.
3-3 I/O Circuit Configurations
Input Configuration Terminals numbers in parentheses are used with counter 2.
filterfilterfilter
Rectifier
Rectifier
Terminal number Name
Counter 1 external control IN2: 12 or 24 VDC
Counter 1 external control IN1/IN2: Input common
Counter 1 input Z: 24 VDC
Counter 1 external control IN1: 12 or 24 VDC
Counter 1 input Z: 12 VDC
Counter 1 input Z: 0 V
Counter 1 input B: 24 VDC
Counter 1 input B: 12 VDC
Counter 1 input B: 0 V
Counter 1 input A: 24 VDC
Counter 1 input A: 12 VDC
Counter 1 input A: 0 V
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