Omron SYSMAC C200H-AD003, SYSMAC C200H-DA003, SYSMAC C200H-DA004, SYSMAC C200H-MAD01 Operation Manual

Cat. No. W325-E1-04

SYSMAC
C200H-AD003/DA003/DA004/MAD01

Analog I/O Units

C200H-AD003/DA003/DA004/MAD01
Analog I/O Units

Operation Manual

Revised June 2003

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 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.

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.

 OMRON, 1997

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.

vi

TABLE OF CONTENTS

vii

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

System Design 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1 Features and Functions 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2 Basic Configuration 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3 Setting the Unit Number 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4 Operating Procedure 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2

C200H-AD003 Analog Input Unit 9. . . . . . . . . . . . . . . . . .

2-1 Specifications 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2 Nomenclature and Functions 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3 Wiring 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4 IR and DM Areas 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5 Using the Functions 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6 Offset and Gain Adjustment 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7 Error Processing 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3
C200H-DA003 and C200H-DA004 Analog Output Units 37

3-1 Specifications 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 Nomenclature and Functions 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3 Wiring 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 IR and DM Areas 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5 Using the Functions 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6 Offset and Gain Adjustment 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7 Error Processing 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4

C200H-MAD01 Analog I/O Unit 65. . . . . . . . . . . . . . . . . . .

4-1 Specifications 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2 Nomenclature and Functions 70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3 Wiring 72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4 IR and DM Areas 76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5 Analog Input Functions 81. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-6 Analog Output Functions 86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-7 Ratio Conversion Function 89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-8 Offset and Gain Adjustment 92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-9 Error Processing 105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendices

A Dimensions 111. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B Changes From Earlier Models 113. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C Sample Programs 115. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D Data Memory Coding Sheet 124. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index 131. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Revision History 135. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ix

About this Manual:

This manual describes the installation and operation of the C200H-AD003 Analog Input Unit, the
C200H-DA003/DA004 Analog Output Unit, and the C200H-MAD01 Analog I/O Unit and includes the sec­tions described below.

The C200H-AD003 Analog Input Unit converts analog sensor output to digital format and transmits it to
C200H, C200HS and C200HX/HG/HE PCs.

The C200H-DA003 and C200H-DA004 Analog Output Units convert C200H, C200HS, and C200HX/HG/
HE digital data to analog format for output.

The C200H-MAD01 Analog I/O Unit provides both input and output functions.

Please read this manual carefully and be sure you understand the information provided before attempting
to install and operate the C200H-AD003, C200H-DA003, C200H-DA004, or C200H-MAD01.

Section 1 describes the features and system configuration of the C200H-AD003 Analog Input Unit, the
C200H-DA003 and C200H-DA004 Analog Output Units, and the C200H-MAD01 Analog I/O Unit, and
explains the operations that they have in common.

Section 2 provides the information required to install and operate a C200H-AD003 Analog Input Unit.

Section 3 provides the information required to install and operate a C200H-DA003 or C200H-DA004

Analog Output Unit.

Section 4 provides the information required to install and operate a C200H-MAD01 Analog I/O Unit.

The Appendices provide dimensions, model change differences, sample programs, and data memory
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.

!

xi

PRECAUTIONS

This section provides general precautions for using the Programmable Controller (PC) and Analog I/O Units.

The information contained in this section is important for the safe and reliable application of the Analog I/O Unit. You
must read this section and understand the information contained before attempting to set up or operate a PC system
and Analog I/O Unit.

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

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

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

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

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

!

!

!

!

xii

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 Ana­log I/O Units. Be sure to read this manual before attempting to use the software
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 above-mentioned
applications.

3 Safety Precautions

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

may result in electric shock.

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

supplied. Doing so may result in electric shock.

WARNING Provide safety measures in external circuits, i.e., not in the Programmable

Controller (CPU Unit including associated Units; referred to as “PC”), 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.

• 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

Safety Precautions

3

!

!

!

!

!

!

xiii

such problems, external safety measures must be provided to ensure safety in
the system.

• When the 24-VDC output (service power supply to the PC) is overloaded or
short-circuited, the voltage may drop and result in the outputs being turned
OFF. As a countermeasure for such problems, external safety measures must
be provided to ensure safety in the system.

Caution Tighten the screws on the terminal block of the AC Power Supply Unit to the

torque specified in the operation manual. The loose screws may result in burning
or malfunction.

Caution Execute online edit only after confirming that no adverse effects will be caused

by extending the cycle time. Otherwise, the input signals may not be readable.

4 Operating Environment Precautions

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

• 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 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.

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

could lead to serious or possibly fatal injury.

• Always connect to a ground of 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.

Application Precautions

5

!

xiv

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

• Assembling the Units.

• Setting DIP switch or rotary switches.

• Connecting or wiring the cables.

• 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.

• 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 voltage 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 the relevant manuals. Incorrect
tightening torque may result in malfunction.

• Do not attempt to disassemble, repair, or modify any Units.

• Be sure to confirm that the DIP switch and the data memory (DM) are properly

set.

• Leave the label attached to the Unit when wiring. Removing the label may re­sult in malfunction.

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

• Mount the Unit only after checking the terminal block 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.

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

• Double-check all the wiring before turning on the power supply. Incorrect wir­ing may result in burning.

• 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.

Application Precautions

5

xv

• 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.

• Before touching the 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.

• 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.

Application Precautions

5

1

SECTION 1

System Design

This section describes the features and system configuration of the C200H-AD003 Analog Input Unit, the C200H-DA003 and
C200H-DA004 Analog Output Units, and the C200H-MAD01 Analog I/O Unit, and explains the operations that they have in
common.

1-1 Features and Functions 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2 Basic Configuration 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3 Setting the Unit Number 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4 Operating Procedure 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2SectionFeatures and Functions

2

1-1 Features and Functions

C200H-AD003 C200H-DA003

C200H-DA004 C200H-MAD01

Analog Input Unit

Analog Output Units

Analog I/O Unit

These special-purpose Units enable highly accurate analog input and output at
a resolution of 4,000, for C200H, C200HS, and C200HX/HG/HE PC systems.
The C200H-AD003 Analog Input Unit converts analog sensor output to digital
format and transmits it to C200H, C200HS and C200HX/HG/HE PCs. The
C200H-DA003 and C200H-DA004 Analog Output Units convert C200H,
C200HS, and C200HX/HG/HE digital data to analog format for output. The
C200H-MAD01 Analog I/O Unit provides both input and output functions.

Item C200H-AD003 C200H-DA003 C200H-DA004 C200H-MAD01

Analog input

Maximum input points 8 --- --- 2

gp

Input signal range
(See note.)

–10 to 10 V
0 to 10 V
1 to 5 V
4 to 20 mA

--- --- –10 to 10 V
0 to 10 V
1 to 5 V
4 to 20 mA

Analog output

Minimum input points --- 8 8 2

gp

Output signal range
(See note.)

--- –10 to 10 V
0 to 10 V
1 to 5 V

4 to 20 mA –10 to 10 V

0 to 10 V
1 to 5 V
4 to 20 mA

Note The input and output signal ranges can be set individually for each input.

The Analog Input and Output Units provide high-speed data conversion at 1 ms
per I/O point. The sampling period can be further shortened by setting unused
inputs and outputs so their use is prohibited.

The input disconnection detection function can be used for analog inputs within
an input signal range of 1 to 5 V (4 to 20 mA). When this function is set for use,
any input under 0.3 V will be regarded as a disconnection. For details, refer to

2-5-5 Input Disconnection Detection Function and 4-5-5 Input Disconnection
Detection Function.

Units for C200H, C200HS,
and C200HX/HG/HE PCs

High-speed Conversion

Input Disconnection
Detection Function

1-1SectionFeatures and Functions

3

The peak value function holds the maximum digital conversion value for every
input (including mean value processing). This function can be used with analog
input. The following diagram shows how digital conversion values are affected
when the peak value function is used. For details, refer to 2-5-4 Peak Value
Function.

Peak value hold

Digital conversion value

t (Time)

The output hold function can be used to hold the analog output value at any pre­set value when there is an error at the PC’s CPU Unit. When conversion is
stopped, CLR, HOLD, or MAX can be selected for output. For details, refer to
3-5-2 Output Hold Function.

The mean value function can be used to remove erroneous values that occur
due to factors such as noise that is included in analog inputs. The operating
mean is taken without affecting the data refresh cycle. For details, refer to 2-5-3
Mean Value Processing and 4-5-3 Mean Value Processing.

The A/D and D/A converter offset deviation and gain deviation can be adjusted
for each input and output. The offset and gain adjustments are made with the
Unit set for the adjustment mode, and the adjustment values are stored in the
Unit’s built-in EEPROM. For details, refer to 2-6 Offset Gain Adjustment, 3-6 Off-
set Gain Adjustment, and 4-8 Offset Gain Adjustment.

Analog Input Unit

(Input signal range: 0 to 10 V)

Analog Output Unit

(Output signal range: 0 to 10 V)

Gain
adjustment

Gain
adjustment

Adjustable range

Adjustable range

Analog input

10 V

Offset adjustment

Offset adjustment

Analog
output

10 V

The C200H-MAD01 Analog I/O Unit can output in analog format the results of
analog inputs calculated for ratio and bias. For details, refer to 4-7 Ratio Conver-
sion Function.

Input 1

Input 2

Output 1

Output 2

Ratio and bias
calculation

Ratio and bias
calculation

Peak Value Function

Output Hold Function

Mean Value Function

Offset and Gain
Adjustment Function

Ratio Conversion
Function

1-2SectionBasic Configuration

4

1-2 Basic Configuration

The basic system configuration is shown in the following diagram, using the
C200H-AD003 Analog Input Unit and the C200H-DA003 Analog Output Unit as
examples.

Analog Output UnitAnalog Input Unit CPU Unit

Preamp

Transducer

Variable speed
controller

Servo­controller

Temperature
Pressure
Speed
Flow rate

Voltage
Current
Power
Power factor

Regulator

(Temperature control)

(Speed control)

(Position control)

Chart recorder

Sensor

Sensor

Analog I/O Units are classified as C200H, C200HS, and C200HX/HG/HE Spe­cial I/O Units. The maximum totals of Special I/O Units (including PC Link Units)
that can be mounted to a single CPU Unit are shown in the following table.

Item C200H, C200HS, C200HE

C200HX/HG-CPU3j-E/4j-E

C200HX/HG-CPU5j-E/6j-E

Number of Units 10 max. 16 max.

Number of Units

1-2SectionBasic Configuration

5

The Units that belong to the various Special I/O Unit groups are shown in the
following table. Their usage is limited according to the maximum current pro­vided for the Rack and the amount of current consumed by each Unit. For de­tails, refer to the C200H, C200HS, or C200HX/HG/HE Installation Guide.

There are restrictions on the number of Analog I/O Units that can be mounted on
a single CPU Rack, I/O Expansion Rack, or Remote I/O Slave Rack. Ensure that
the number of Units does not exceed the corresponding total given in the follow­ing table and that the total current consumption of the Analog I/O Units and the
Units mounted to the same Rack does not exceed the maximum current pro­vided for the Rack.

Limitations Due to Unit Current Consumption

Rack type Rack model

Number of Analog I/O Units that can be mounted on the

same Rack

AD003 DA003 DA004 MAD01 Combinations of the

models on the left

C200HX/HG/HE CPU

C200HW-PA204

6 3 2 3 Total current

Rack or I/O Expansion

C200HW-PA204S

consumption for all Units

Rack

C200HW-PA204R

x

C200HW-PD024

Supply capability of the

C200HS CPU Rack, I/O

C200HS-CPU01-C

Rack

,

Expansion Rack, or

C200HS-CPU21-C

R

emote

I/O Sl

ave Rac

k

C200H-PS221-C

C200H-RT201-C

There are usage limitations for Remote I/O Slave Racks. Refer to Slave Racks
below for details.

Certain limitations apply to the number of Special I/O Units that can be mounted
on Slave Racks. The following table shows the maximum number of Group A, B,
C, and D Special I/O Units that can be mounted on a single Slave Rack when
only Units of that group are used.

Item A B C D

Type of Unit High-speed Counters

Position Control Units

(NC111/112)
ASCII Units
Analog I/O Units
ID Sensor Units
Fuzzy Logic Units

High-density I/O Units
Temperature Control
Units
PID Control Units
Cam Positioner Units

Temperature Sensor
Units
Voice Units

Position Control Units

(NC211)

Mountable number 4 Units 8 Units 6 Units 2 Units

If Units from any of the four groups are to be combined, then both of the following
two equations must be satisfied.

3A + B + 2C + 6D x 12
A + B + C + D x 8

When considering the limitations on the numbers of different types of Special I/O
Units that can be used, refer also to Number of Units previously described.

Special I/O Units are allocated IR area addresses according to the unit number
switch settings on their front panels, and not according to the slots in which they
are mounted.

With the C200H, do not mount an Analog I/O Unit in the two slots adjacent to the
CPU Unit. Doing so would prevent peripheral devices such as the Programming
Console from being connected.

Special I/O Units cannot be used on a C200H Remote I/O Slave Rack if the
Slave Rack is connected to different PC (i.e., C500, C1000H, or C2000H).

Slave Racks

System Configuration
Considerations

1-2SectionBasic Configuration

6

Mounting Analog I/O Units Use the following procedure to mount an Analog I/O Unit to the Backplane.

1, 2, 3... 1. Lock the top of the Analog I/O Unit into the slot on the Backplane and rotate

the Unit downwards as shown in the following diagram.

Hook

Backplane

Lock lever

2. While making sure to align the Unit properly with the connectors, press
down on the lock lever at the bottom of the slot, press the Unit firmly into po­sition, and then release the lock lever.

(To remove a Unit, hold down the lock lever with an implement such as a
screwdriver.)

Lock lever

Leave enough space below each Rack, as shown in the following diagram for
mounting and removing the Units.

20 mm min.

20 mm min.

Backplane

Flat-blade screwdriver

Precautions Be sure to turn off the power supply to the PC before installing or disconnecting

Units or connecting lines.
To reduce the risk of malfunctioning due to electrical noise, wire input and output

lines in separate ducts from high-voltage and power lines.

1-3SectionSetting the Unit Number

7

When wiring a Unit, place a cover over the top of the Unit to prevent wire clip­pings and so on from getting inside. When the wiring has been completed, the
cover must be removed to prevent heat radiation.

Remove the cover after the
wiring has been completed.

1-3 Setting the Unit Number

The CPU Unit and Analog I/O Units exchange data via the IR area and the DM
area. The IR and DM word numbers that each Analog I/O Unit occupies are set
by the unit number switch on the front panel of the Unit.

Unit number switch

Switch setting Unit number IR words DM words

0 Unit #0 IR 100 to 109 DM 1000 to 1099

1 Unit #1 IR 110 to 119 DM 1100 to 1199

2 Unit #2 IR 120 to 129 DM 1200 to 1299

3 Unit #3 IR 130 to 139 DM 1300 to 1399

4 Unit #4 IR 140 to 149 DM 1400 to 1499

5 Unit #5 IR 150 to 159 DM 1500 to 1599

6 Unit #6 IR 160 to 169 DM 1600 to 1699

7 Unit #7 IR 170 to 179 DM 1700 to 1799

8 Unit #8 IR 180 to 189 DM 1800 to 1899

9 Unit #9 IR 190 to 199 DM 1900 to 1999

A Unit #A IR 400 to 409 DM 2000 to 2099

B Unit #B IR 410 to 419 DM 2100 to 2199

C Unit #C IR 420 to 429 DM 2200 to 2299

D Unit #D IR 430 to 439 DM 2300 to 2399

E Unit #E IR 440 to 449 DM 2400 to 2499

F Unit #F IR 450 to 459 DM 2500 to 2599

Note 1. Switches A to F can be set for the C200HX/HG-CPU5j-E/6j-E. Setting

numbers A to F for C200H, C200HS, C200HE, or C200HX/HG­CPU3j-E/4j-E PCs will cause an I/O UNIT OVER error and the Unit will
not operate.

2. If two or more Special I/O Units are assigned the same unit number, an I/O
UNIT OVER error will be generated and the PC will not operate.

1-4SectionOperating Procedure

8

1-4 Operating Procedure

Follow the procedure outlined below when using Analog I/O Units.

Installation and Settings

1, 2, 3... 1. Set the DIP switch on the rear panel of the Unit to normal mode.

2. Wire the Unit.

3. Use the switch on the front panel of the Unit to set the unit number.

4. Turn on the power to the PC.

5. Make the DM area settings.

• Set the I/O addresses to be used.

• Set the input and output signal ranges.

• Set the number of mean processing samplings. (AD003/MAD01 only)

• Set the output hold function. (DA003/DA004/MAD01 only)

• Set the ratio conversion usage, the ratio set value, and the bias value.

(MAD01 only)

6. Power up the PC again or turn the Special I/O Unit Restart Bit to ON and then
OFF again.

When the input or output of the connected devices needs to be calibrated, follow
the procedures in Offset Gain Adjustment below. Otherwise, skip to Operation
below.

Offset Gain Adjustment

1, 2, 3... 1. Set the DIP switch on the rear panel of the Unit to adjustment mode.

2. Turn on the power to the PC.

3. Adjust the offset and gain.

4. Turn off the power to the PC.

5. Change the setting of the DIP switch on the rear panel of the Unit back to
normal mode.

Ladder program

• Read conversion values or write set values by means of MOV(21) and

XFER(70).

• Start and stop conversion output.

• Specify the peak hold function.

• Obtain disconnection notifications and error codes.

Operation

9

SECTION 2

C200H-AD003 Analog Input Unit

This section provides the information required to install and operate a C200H-AD003 Analog Input Unit.

2-1 Specifications 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1-1 General Specifications 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1-2 Performance Specifications 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1-3 Input Specifications 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2 Nomenclature and Functions 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-1 Indicators 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-2 Unit Number Switch 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-3 Operation Mode Switch 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3 Wiring 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3-1 Terminal Arrangement 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3-2 Internal Circuitry 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3-3 Line Breakage while Using Voltage Input 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3-4 Input Wiring Example 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3-5 Input Wiring Considerations 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4 IR and DM Areas 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4-1 IR Area Allocation and Contents 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4-2 DM Allocation and Contents 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5 Using the Functions 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5-1 Setting Inputs and Signal Ranges 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5-2 Reading Conversion Values 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5-3 Mean Value Processing 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5-4 Peak Value Function 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5-5 Input Disconnection Detection Function 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6 Offset and Gain Adjustment 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6-1 Adjustment Mode Operational Flow 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6-2 Offset and Gain Adjustment Procedures 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7 Error Processing 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7-1 Troubleshooting Procedure 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7-2 Errors Detected by Analog Input Unit 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7-3 Errors Detected by CPU Unit 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7-4 Restarting Special I/O Units 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7-5 Troubleshooting 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1SectionSpecifications

10

2-1 Specifications

2-1-1 General Specifications

All general specifications of the C200H-AD003 Analog Input Unit conform to
those of the C200H, C200HS, and C200HX/HG/HE Series.

2-1-2 Performance Specifications

Item

C200H-AD003

Voltage input Current input

Number of analog inputs 8

Input signal range (note 1) 0 to 10 V

–10 to 10 V
1 to 5 V

4 to 20 mA

Max. input signal (note 2) ±15 V ±30 mA

Input impedance 1 MΩ min. 250 Ω (rated value)

Resolution 1/4000 (full scale)

Converted output data 16-bit binary data

Accuracy

23°±2°C

±0.2% of full scale ±0.4% of full scale

(note 3)

0° to 55°C

±0.4% of full scale ±0.6% of full scale

Conversion time (note 4) 1.0 ms/point

Isolation Between input terminals and PC: photocoupler

(No isolation between individual input signals.)

External connectors 28-point terminal block (M3 screws)

Power consumption 100 mA max. at 5 VDC

100 mA max. at 26 VDC

Dimensions 34.5 x 130 x 128 (W x H x D) mm (refer to Appendix A

Dimensions)

Weight 450 g max.

Note 1. The input signal range can be set individually for each input.

2. Operation in ranges beyond the maximum input signals will damage the
Unit. Operate within the ranges listed above.

3. The accuracy is given for full scale. For example, an accuracy of ±0.2%
means a maximum error of ±8 (BCD).
The default setting is adjusted with the voltage input. When using the current
input, perform the offset and gain adjustment as required.

4. A/D conversion time is the time it takes for an analog signal to be stored in
memory as converted data after it has been input. It takes at least one cycle
before the converted data is read by the CPU Unit.
By executing an I/O refresh, the conversion time may be extended by an
additional 0.3 ms approximately.

2-1SectionSpecifications

11

2-1-3 Input Specifications

Range: 1 to 5 V (4 to 20 mA)

1 V (4 mA)

0.8 V (3.2 mA)

5 V (20 mA)

5.2 V (20.8 mA)

Resolution: 4,000

Conversion value (16-bit binary data)

1068

0FA0

0000

FF38

Analog input signal

Range: 0 to 10 V

0 V +10 V

–0.5 V +10.5 V

1068

0FA0

0000

FF38

Resolution: 4,000

Conversion value (16-bit binary data)

Analog input signal

2-2SectionNomenclature and Functions

12

Range: –10 to 10 V

0 V +10 V

+11 V

0898

07D0

F830

F768

0000

–10 V

–11 V

Resolution: 4,000

Conversion value (16-bit binary data)

Analog input signal

2-2 Nomenclature and Functions

Model label

Unit number setting switch

Terminal block mounting
screw (black M3)

External input terminal
block (M3)

Indicators

Operation mode switch

Backplane connector

Front Back

2-2SectionNomenclature and Functions

13

The terminal block is attached by a connector. It can be removed by loosening
the black mounting screw. When removing the terminal block after wiring, re­move the wire connected to the top terminal of the right column.

Check to be sure that the black terminal block mounting screw is securely tight­ened to a torque of 0.5 N S m.

Fasten the mounting screw.

2-2-1 Indicators

The RUN and ERROR indicators show the operating status of the Unit. The fol­lowing table shows the meanings of the indicators.

LED Indicator Operating status

RUN (green)

Lit Operating in normal mode.

(g )

Flashes Operating in adjustment mode.

Not lit Abnormal (Unit operation stopped)

ERROR (red)

Lit Error occurred. The error codes are stored in bits

08 to 15 of word n+9.

Not lit Other than the above.

2-2-2 Unit Number Switch

The CPU Unit and Analog Input Unit exchange data via the IR area and the DM
area. The IR and DM word addresses that each Analog Input Unit occupies are
set by the unit number switch on the front panel of the Unit.

Always turn off the power before setting the unit number. Use a flat-blade screw­driver, being careful not to damage the slot in the screw. Be sure not to leave the
switch midway between settings.

Switch setting Unit number IR words DM words

0 Unit #0 IR 100 to 109 DM 1000 to 1099

1 Unit #1 IR 110 to 119 DM 1100 to 1199

2 Unit #2 IR 120 to 129 DM 1200 to 1299

3 Unit #3 IR 130 to 139 DM 1300 to 1399

4 Unit #4 IR 140 to 149 DM 1400 to 1499

5 Unit #5 IR 150 to 159 DM 1500 to 1599

6 Unit #6 IR 160 to 169 DM 1600 to 1699

7 Unit #7 IR 170 to 179 DM 1700 to 1799

8 Unit #8 IR 180 to 189 DM 1800 to 1899

9 Unit #9 IR 190 to 199 DM 1900 to 1999

A Unit #A IR 400 to 409 DM 2000 to 2099

B Unit #B IR 410 to 419 DM 2100 to 2199

C Unit #C IR 420 to 429 DM 2200 to 2299

D Unit #D IR 430 to 439 DM 2300 to 2399

E Unit #E IR 440 to 449 DM 2400 to 2499

F Unit #F IR 450 to 459 DM 2500 to 2599

!

!

2-3SectionWiring

14

Note 1. Switches A to F can be set for the C200HX/HG-CPU5j-E/6j-E. Setting

numbers A to F for C200H, C200HS, C200HE, or C200HX/HG­CPU3j-E/4j-E PCs will cause an I/O UNIT OVER error and the Unit will
not operate.

2. If two or more Special I/O Units are assigned the same unit number, an I/O
UNIT OVER error will be generated and the PC will not operate.

2-2-3 Operation Mode Switch

The operation mode switch on the back of the Unit is used to set the operation
mode to either normal mode or adjustment mode (for adjusting offset and gain).

Pin number

Mode

1 2 3 4

OFF OFF OFF OFF Normal mode

ON OFF OFF OFF Adjustment mode

Caution Do not set the pins to any combination other than those shown in the above

table. Be sure to set pins 2, 3, and 4 to OFF.

Caution Be sure to turn off the power to the PC before changing the operation mode

switch settings.

2-3 Wiring

2-3-1 Terminal Arrangement

The signal names corresponding to the connecting terminals are as shown in the
following diagram.

Current input 2 (+) B0

Voltage input 2 (+) B1

Voltage input 2 (–) B2

Current input 4 (+) B3

Voltage input 4 (+) B4

Voltage input 4 (–) B5

COM (analog 0 V) B6

Current input 6 (+) B7

Voltage input 6 (+) B8

Voltage input 6 (–) B9

Current input 8 (+) B10

Voltage input 8 (+) B11

Voltage input 8 (–) B12

COM (analog 0 V) B13

Current input 1 (+)A0

Voltage input 1 (+)A1

Voltage input 1 (–)A2

COM (analog 0 V)A3

Current input 3 (+)A4

Voltage input 3 (+)A5

Voltage input 3 (–)A6

Current input 5 (+)A7

Voltage input 5 (+)A8

Voltage input 5 (–)A9

COM (analog 0 V)A10

Current input 7 (+)A11

Voltage input 7 (+)A12

Voltage input 7 (–)A13

Note 1. The analog input numbers that can be used are set in the Data Memory

(DM).

2-3SectionWiring

15

2. The input signal ranges for individual inputs are set in the Data Memory
(DM). They can be set in units of analog input numbers.

3. The COM terminal is connected to the 0-V analog circuit in the Unit. Con­necting shielded input lines can improve noise resistance.

2-3-2 Internal Circuitry

The following diagram shows the internal circuitry of the analog input section.

250 Ω

1 MΩ

10 kΩ 10 kΩ

10 kΩ 10 kΩ

AG (common to all outputs)

Current
input (+)

Voltage
input (+)

Voltage
input (–)

COM
(analog
0 V)

Input circuit
and
conversion
circuit

1 MΩ

2-3-3 Line Breakage while Using Voltage Input

24 VDC

Con­nected
device
1

Con­nected
device
2

Note If the power supply is shared by two channels as shown above, while the con-

nected device 2 outputs 5 V, approximately 1.6 V (one-third of the output volt­age) is generated in input 1.

If a line breakage occurs while using the voltage input, either separate the power
supply from the connected device or use an isolator for each input to avoid the
following problem.

2-3SectionWiring

16

If the line breakage occurs at point A or B as shown in the preceding diagram
while power is shared by the connected devices, a short-circuit line will be
formed as indicated by the dotted line in the above illustration, thus generating a
voltage of approximately one-third to two-thirds of the voltage output from the
connected device. If this kind of voltage is generated while using the Unit at 1 to
5 V, the line breakage may not be detected. If the line breakage occurs at point
C, it will not be detected because the negative (–) side is common.

In case of the current input, this kind of problem will not occur even if the power
supply is shared by the connected devices.

2-3-4 Input Wiring Example

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

B0

B1

B2

B3

B4

B5

B6

B7

B8

B9

B10

B11

B12

B13

Input 2
(Voltage input)

Input 4
(Voltage input)

Input 6
(Current input)

Input 8
(Voltage input)

Input 1
(Voltage input)

Input 5
(Voltage input)

Input 7
(Voltage input)

Input 3
(Current input)

C200H-AD003(Input devices) (Input devices)

Note 1. When using current inputs, the voltage input terminals (V+) and current in-

put terminals (I+) must be individually short-circuited as shown in the above
diagram.

2. For inputs that are not used, either set to “0: Do not use” in the input number
settings (refer to 2-5-1 Setting Inputs and Signal Ranges) or short-circuit the
voltage input terminals (V+) and (V–).

3. Crimp-type terminals must be used for terminal connections, and the
screws must be tightened securely. Use M3 screws and tighten them to a
torque of 0.5 N S m.

6.0 mm max.

6.0 mm max.

M3 screw

Fork Type

Round Type

Connecting shielded cable to the Unit’s COM terminals (A3, A10, B6, B13)
can improve noise resistance.

2-4SectionIR and DM Areas

17

2-3-5 Input Wiring Considerations

When wiring inputs, apply the following points to avoid noise interference and
optimize Analog Input Unit performance.

• Use shielded twisted-pair cable for external connections and power lines.

• Route input cables separately from the AC cable, and do not run the Unit’s

cables near a main circuit cable, high voltage cable, or a non-PC load cable.

• If there is noise interference from power lines (if, for example, the power supply
is shared with electrical welding devices or electrical discharge machines, or if
there is a high-frequency generation source nearby) install a noise filter at the
power supply input area.

2-4 IR and DM Areas

The IR and DM word addresses that each Analog Input Unit occupies are set by
the unit number switch on the front panel of the Unit.

2-4-1 IR Area Allocation and Contents

IR Area Allocation

IR n + 1
to
IR n +9

IR n

IR 130 to 139

IR 140 to 149

IR 150 to 159

IR 100 to 109

IR 110 to 119

IR 120 to 129

IR 190 to 199

IR 160 to 169

IR 170 to 179

IR 180 to 189

SYSMAC C200H/C200HS/C200HX/HG/HE PC C200H-AD003 Analog Input Unit

IN refresh

(I/O refresh data area)

n = 100 + 10 x unit number, except
for Units #A to #F (10 to 15) where:
n = 400 + 10 x (unit number – 10)

Unit #0

Unit #1

Unit #2

Unit #3

Unit #4

Unit #5

Unit #6

Unit #7

Unit #8

Unit #9

(Work area)

At the I/O refresh by the
PC, outputs (CPU to
Unit) and inputs (Unit to
CPU) are refreshed in
order with every cycle.

OUT refresh

Words

IR 430 to 439

IR 440 to 449

IR 450 to 459

IR 400 to 409

IR 410 to 419

IR 420 to 429

Unit #A

Unit #B

Unit #C

Unit #D

Unit #E

Unit #F

Normal Mode

IR n + 8
to
IR n +9

IR n
to
IR n + 7

IN refresh

OUT refresh

Adjustment Mode

Note 1. Switches A to F can be set for the C200HX/HG-CPU5j-E/6j-E. Setting

numbers A to F for C200H, C200HS, C200HE, or C200HX/HG­CPU3j-E/4j-E PCs will cause an I/O UNIT OVER error and the Unit will
not operate.

2. If two or more Special I/O Units are assigned the same unit number, an I/O
UNIT OVER error will be generated and the PC will not operate.

2-4SectionIR and DM Areas

18

For normal mode, set the operation mode switch on the rear panel of the Unit as
shown in the following diagram.

The allocation of IR words and bits is shown in the following table.

I/O Word

Bits

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Output

n Not used.

Peak value function inputs

(CPU t

o

Unit)

8 7 6 5 4 3 2 1

Input

n+1

Input 1 conversion value

p

(Unit to

16

3

16

2

16

1

16

0

CPU)

n+2 Input 2 conversion value

n+3 Input 3 conversion value

n+4 Input 4 conversion value

n+5 Input 5 conversion value

n+6 Input 6 conversion value

n+7 Input 7 conversion value

n+8 Input 8 conversion value
n+9

Error code Disconnection detection inputs

16

1

16

0

8 7 6 5 4 3 2 1

Note For the IR word addresses, n = 100 + 10 x unit number.

For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Set Values and Stored Values

Item Contents

Peak value function 0: Do not use.

1: Use peak value.

Conversion value 16-bit binary data

Disconnection detection 0: No disconnection

1: Disconnection

Error code Two digits, hexadecimal (00 for no error)

The disconnection detection function can be used when the input signal range is
set for 1 to 5 V (4 to 20 mA).

Input signal range Voltage/current

1 to 5 V 0.3 V max.

4 to 20 mA 1.2 mA max.

Allocation for Normal
Mode

2-4SectionIR and DM Areas

19

For adjustment mode, set the operation mode switch on the rear panel of the
Unit as shown in the following diagram. When the Unit is set for adjustment
mode, the RUN indicator on the front panel of the Unit will flash.

The allocation of IR words and bits is shown in the following table.

I/O Word

Bits

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Output

n Not used.

Inputs to be adjusted

p

(CPU to

16

1

16

0

Unit)

n+1 Not used. Not used. Clr Set Not used. Gain Off-

set
n+2 Not used.

n+3 Not used.

n+4 Not used.

n+5 Not used.

n+6 Not used.

n+7 Not used.

Input

n+8

Conversion value for adjustment

p

(Unit to

16

3

16

2

16

1

16

0

CPU)

n+9

Error Code Disconnection detection inputs

16

1

16

0

8 7 6 5 4 3 2 1

Note For the IR word addresses, n = 100 + 10 x unit number.

For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Set Values and Stored Values

Item Contents

Input to be adjusted Sets input to be adjusted. Leftmost digit: Fixed at 2.

Rightmost digit: 1 to 9

Offset (Offset Bit) When ON, adjusts offset deviation.

Gain (Gain Bit) When ON, adjusts gain deviation.

Set (Set Bit) Sets adjusted value and writes to EEPROM.

Clr (Clear Bit) Clears adjusted value. (Returns to default status)

Conversion value for
adjustment

The conversion value for adjustment is stored as 16
bits of binary data.

Disconnection detection 0: No disconnection

1: Disconnection

Error code Two digits, hexadecimal (00 for no error)

The disconnection detection function can be used when the input signal range is
set for 1 to 5 V (4 to 20 mA).

Input signal range Voltage/current

1 to 5 V 0.3 V max.

4 to 20 mA 1.2 mA max.

Allocation for
Adjustment Mode

2-4SectionIR and DM Areas

20

2-4-2 DM Allocation and Contents

DM Allocation

DM (m+1)

DM (m)

DM 1300 to 1399

DM 1400 to 1499

DM 1500 to 1599

DM 1000 to 1099

DM 1100 to 1199

DM 1200 to 1299

DM 1900 to 1999

DM 1600 to 1699

DM 1700 to 1799

DM 1800 to 1899

SYSMAC C200H/C200HS/C200HX/HG/HE PC C200H-AD003 Analog Input Unit

Input signal range
setting

Fixed data area

m = 1000 + 100 x unit number
(Units #A to #F = Unit numbers 10 to 15)

Unit #0

Unit #1

Unit #2

Unit #3

Unit #4

Unit #5

Unit #6

Unit #7

Unit #8

Unit #9

Data Memory (DM)

Data is automatically
transferred to each unit
number when the power
is turned on, or when the
Special I/O Unit’s Re­start Bit is turned ON.

Use designation

DM words

DM 2300 to 2399

DM 2400 to 2499

DM 2500 to 2599

DM 2000 to 2099

DM 2100 to 2199

DM 2200 to 2299

Unit #A

Unit #B

Unit #C

Unit #D

Unit #E

Unit #F

DM (m+2
to m+9)

Sets number of
samples for mean
value processing

Note 1. Switches A to F can be set for the C200HX/HG-CPU5j-E/6j-E. Setting

numbers A to F for C200H, C200HS, C200HE, or C200HX/HG­CPU3j-E/4j-E PCs will cause an I/O UNIT OVER error and the Unit will
not operate.

2. If two or more Special I/O Units are assigned the same unit number, an I/O
UNIT OVER error will be generated and the PC will not operate.

The following table shows the allocation of DM words and bits for both normal
and adjustment mode.

DM word

Bits

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

DM (m) Not used.

Use designation inputs

()

8 7 6 5 4 3 2 1

DM (m+1)

Input signal range setting

()

Input 8 Input 7 Input 6 Input 5 Input 4 Input 3 Input 2 Input 1

DM (m+2) Mean value processing setting, input 1

DM (m+3) Mean value processing setting, input 2

DM (m+4) Mean value processing setting, input 3

DM (m+5) Mean value processing setting, input 4

DM (m+6) Mean value processing setting, input 5

DM (m+7) Mean value processing setting, input 6

DM (m+8) Mean value processing setting, input 7

DM (m+9) Mean value processing setting, input 8

Note For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit

numbers 10 to 15).

DM Allocation Contents

2-5SectionUsing the Functions

21

Set Values and Stored Values

Item Contents

Use designation 0: Do not use.

1: Use.

Input signal range 00: –10 to 10 V

01: 0 to 10 V
10: 1 to 5 V/4 to 20 mA (See note.)
11: Same as for setting “10” above.

Mean value processing
setting

0000: No mean value processing
0001: Mean value processing for 2 buffers
0002: Mean value processing for 4 buffers
0003: Mean value processing for 8 buffers
0004: Mean value processing for 16 buffers

Note The input signal range of 1 to 5 V (4 to 20 mA) is switched according to the input

terminal connections.

2-5 Using the Functions

2-5-1 Setting Inputs and Signal Ranges

The Analog Input Unit only converts analog inputs specified by input numbers 1
to 8. In order to specify the analog inputs to be used, turn ON from a Peripheral
Device the DM bits shown in the following diagram.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Input 8

Input 7

Input 6

Input 5

Input 4

Input 3

Input 2

Input 1

DM (m)

0: Do not use
1: Use

The analog input sampling interval can be shortened by setting any unused input
numbers to 0.

Sampling interval = (1 ms) x (Number of inputs used)

For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).

Any of four types of input signal range can be selected for each of the eight inputs
(input numbers 1 to 8). In order to specify the input signal range for each input,
set from a Peripheral Device the DM bits shown in the following diagram.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Input 8

Input 7

Input 6

Input 5

Input 4

Input 3

Input 2

Input 1

DM (m+1)

00: -10 to 10 V
01: 0 to 10 V
10: 1 to 5 V / 4 to 20 mA
11: Same as 10 above.

Switching between the options of “1 to 5 V” and “4 to 20 mA” is done by means of
the input terminal connections.

Input Numbers

Input Signal Range

2-5SectionUsing the Functions

22

For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).

Note After making the DM settings from a Peripheral Device, it will be necessary to

either power up the PC again or turn ON the Special I/O Unit Restart Bit in order
to transfer the contents of the DM settings to the Special I/O Unit. For details re­garding the Special I/O Unit Restart Bit, refer to 2-7-4 Restarting Special I/O
Units.

2-5-2 Reading Conversion Values

Analog input conversion values are stored for each input number, in IR words
n+1 through n+8.

Word Function Stored value

n+1 Input 1 conversion value

16-bit binary data

n+2 Input 2 conversion value

y

n+3 Input 3 conversion value

n+4 Input 4 conversion value

n+5 Input 5 conversion value

n+6 Input 6 conversion value

n+7 Input 7 conversion value

n+8 Input 8 conversion value

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Use MOV(21) or XFER(70) to read conversion values in the user program.

In this example, the conversion data from only one input is read. (The unit num­ber is #0.)

MOV(21)

101

DM0001

Input condition

Conversion data in IR word
101 (input number 1) is read
to DM 0001.

In this example, the conversion data from multiple inputs is read. (The unit num­ber is #0.)

XFER(70)

#0004

101

DM0001

Input condition

Conversion data in IR words
101 to 104 (input numbers 1
to 4) is read to DM 0001
through DM 0004.

For details regarding conversion value scaling, refer to page 118, Sample Pro-
gram 5: Scaling Function.

Example 1

Example 2

2-5SectionUsing the Functions

23

2-5-3 Mean Value Processing

The Analog Input Unit can compute the mean value of the conversion values of
analog inputs that have been previously sampled. Mean value processing in­volves an operational mean value in the history buffers, so it has no affect on the
data refresh cycle. (The number of history buffers that can be set to use mean
value processing is 2, 4, 8, or 16.)

Conversion data Buffer 1

Buffer 2

Buffer 3

Buffer 4

Buffer n

(Mean value
processing)

Conversion value

(Values stored in IR
words n+1 to n+8)

(Discarded)

When “n” number of history buffers are being used, the first conversion data will
be stored for all “n” number of history buffers immediately data conversion has
begun or after a disconnection is restored.

When mean value processing is used together with the peak value function, the
mean value will be held.

To specify whether or not mean value processing is to be used, and to specify the
number of history buffers for mean data processing, use a Peripheral Device to
make the settings in DM m+2 through DM m+9 as shown in the following table.

Word Function Set value

DM (m+2) Input 1 mean value processing

0000: No mean value processing

DM (m+3) Input 2 mean value processing

pg

0001: Mean value processing with 2 buffers

DM (m+4) Input 3 mean value processing

0001: Mean value processing with 2 buffers

0002: Mean value processing with 4 buffers

DM (m+5) Input 4 mean value processing

0002: Mean value processing with 4 buffers

0003: Mean value processing with 8 buffers

DM (m+6) Input 5 mean value processing

0003: Mean value processing with 8 buffers

0004: Mean value processing with 16 buffers

DM (m+7) Input 6 mean value processing

0004: Mean value processing with 16 buffers

DM (m+8) Input 7 mean value processing

DM (m+9) Input 8 mean value processing

For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).

Note After making the DM settings from a Peripheral Device, it will be necessary to

either power up the PC again or turn ON the Special I/O Unit Restart Bit in order
to transfer the contents of the DM settings to the Special I/O Unit. For details re­garding the Special I/O Unit Restart Bit, refer to 2-7-4 Restarting Special I/O
Units.

2-5SectionUsing the Functions

24

The history buffer operational means are calculated as shown below. (In this ex­ample there are four buffers.)

1, 2, 3... 1. With the first cycle, the data is stored with Data 1 being in all the history buff-

ers.

(Mean value
processing)

Conversion value

Data 1

Data 1

Data 1

Data 1

Mean value = (Data 1 + Data 1 + Data 1 + Data 1) B 4

2. With the second cycle, the data is stored with Data 2 being in the first history
buffer.

(Mean value
processing)

Conversion value

Data 2

Data 1

Data 1

Data 1

Mean value = (Data 2 + Data 1 + Data 1 + Data 1) B 4

3. With the third cycle, the data is stored with Data 3 being in the first history
buffer.

(Mean value
processing)

Conversion value

Data 3

Data 2

Data 1

Data 1

Mean value = (Data 3 + Data 2 + Data 1 + Data 1) B 4

4. With the fourth cycle, the Data 4 data is stored in the first history buffer.

(Mean value
processing)

Conversion value

Data 4

Data 3

Data 2

Data 1

Mean value = (Data 4 + Data 3 + Data 2 + Data 1) B 4

5. With the fifth cycle, the data is stored with Data 5 being in the first history
buffer.

(Mean value
processing)

Conversion value

Data 5

Data 4

Data 3

Data 2

Mean value = (Data 5 + Data 4 + Data 3 + Data 2) B 4

When a disconnection is restored, the mean value processing function begins
again from step 1.

2-5SectionUsing the Functions

25

2-5-4 Peak Value Function

The peak value function holds the maximum digital conversion value for every
input (including mean value processing). This function can be used with analog
input. The following diagram shows how digital conversion values are affected
when the peak value function is used.

Peak value hold

Digital conversion value

t (Time)

The peak value function can be set individually for each input number by turning
on the respective bits (00 to 07) in IR word n.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Input 8

Input 7

Input 6

Input 5

Input 4

Input 3

Input 2

Input 1

Word n

The peak hold function will be in effect
for the above input numbers while
their respective bits are ON. The
conversion values will be reset when
the bits are turned OFF.

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

In the following example, the peak value function is in effect for input number 1,
and the unit number is 0.

10000

Input condition

The maximum
conversion
data value is
held for input
number 1.

When mean value processing is used together with the peak value function, the
mean value will be held.

As long as the peak value function is in effect, the peak value will be held even in
the event of a disconnection.

2-5-5 Input Disconnection Detection Function

When an input signal range of 1 to 5 V (4 to 20 mA) is used, input circuit discon­nections can be detected. The detection conditions for each of the input signal
ranges are shown in the following table.

Range Current/voltage

1 to 5 V 0.3 V max.

4 to 20 mA 1.2 mA max.

2-5SectionUsing the Functions

26

The input disconnection detection signals for each input number are stored in
bits 00 to 07 of IR word n+9. Specify these bits as execution conditions in order to
use disconnection detection in the user’s program.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Input 8

Input 7

Input 6

Input 5

Input 4

Input 3

Input 2

Input 1

Word n+9

The respective bit turns ON when a
disconnection is detected for a given
input. When the disconnection is
restored, the bit turns OFF.

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

The conversion value during a disconnection will be 0000.

Disconnection detection is performed on the input voltage/current data that has
been converted into digital values. Therefore, detected values may be different
from those shown in the above table due to offset and gain adjustments, etc.

In the following example, the conversion value is read only if there is no discon­nection at analog input number 1. (The unit number is 0.)

MOV(21)

101

DM0001

10900

The conver­sion value in
IR word 101
(input number

1) is read to
DM 00001.

!

2-6SectionOffset and Gain Adjustment

27

2-6 Offset and Gain Adjustment

This function is designed to calibrate inputs depending on the devices to be con­nected.

2-6-1 Adjustment Mode Operational Flow

The following diagram shows the flow of operations when using the adjustment
mode for adjusting offset and gain.

Change the operation mode switch on the back of the Unit

Power up the PC

When adjusting another input number

When adjusting the same input number

Set the input number

Offset adjustment (Refer to page 28)

Offset Bit ON

(Bit 0 of IR word n+1 turns ON.)

Sampling input

(Add inputs so that conversion
value becomes 0.)

Set Bit ON

(Bit 4 of IR word n+1 turns ON.)

Turn off power to the PC

Change the operation mode switch on the back of the Unit

Set the operation mode switch to normal mode.

Set the operation mode switch to adjustment mode.

The RUN indicator will flash while
in adjustment mode.

Write the input number to be adjusted
in the rightmost byte of IR word n.

Gain adjustment (Refer to page 30)

Gain Bit ON

(Bit 1 of IR word n+1 turns ON.)

Sampling input

(Add inputs so that conversion
value is maximized.)

Set Bit ON

(Bit 4 of IR word n+1 turns ON.)

Refer to 2-6-2 Offset and Gain

Adjustment Procedures

Caution Be sure to turn off the power to the PC before changing the operation mode

switch.
If the I/O table is registered in the PC, an I/O setting error may occur, not allowing
any adjustment. In such a case, either cancel the I/O table or create the I/O table
again.
When making adjustments, be sure to perform both the offset adjustment and
gain adjustment.

2-6SectionOffset and Gain Adjustment

28

Note Input adjustments can be performed more accurately in conjunction with mean

value processing.

2-6-2 Offset and Gain Adjustment Procedures

To specify the input number to be adjusted, write the value to the rightmost byte
of IR word n as shown in the following diagram.

(Rightmost)

(Leftmost)

Word n

Input to be adjusted (1 to 8)

I/O specification
2: Input (fixed)

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

The following example uses input number 1 adjustment for illustration. (The unit
number is 0.)

CLR

00000

SHIFT

CH

*

1

B

0

A

0

A

MONTR

c100
0000

CHG

PRES VAL?
c100 0000 ????

0

A

0

A

2

C

1

B

WRITE

c100
0021

The IR word n+1 bits shown in the following diagram are used for adjusting offset
and gain.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Word n+1

Clear bit

Set bit

Gain bit

Offset bit

The procedure for adjusting the analog input offset is explained below. As shown
in the following diagram, the offset is adjusted by sampling inputs so that the
conversion value becomes 0.

10 V0

0FA0

Offset adjustment input range

Input signal range:
–10 to 10 V

Specifying Input Number
to be Adjusted

Bits Used for Adjusting
Offset and Gain

Offset Adjustment

2-6SectionOffset and Gain Adjustment

29

The following example uses input number 1 adjustment for illustration. (The unit
number is 0.)

1, 2, 3... 1. Turn ON bit 00 (the Offset Bit) of IR word n+1. (Hold the ON status.)

CLR

00000

SHIFT

CONT

#

1

B

0

A

1

B

0

A

0

A

MONTR

10100
^OFF

PLAY

SET

10100
ON

The analog input’s digital conversion values while the Offset Bit is ON will be
monitored in IR word n+8.

2. Check whether the input devices are connected.

A0

A1

A2

A3

A0

A1

A2

A3

+

–

+

–

Voltage input

Input 1

Current input

Input 1

3. Input the voltage or current so that the conversion value becomes 0000. The
following table shows the the offset adjustment voltages and currents to be
input according to the input signal range.

Input signal range Input voltage/current Input range

0 to 10 V 0 V –0.5 to 0.5 V

–10 to 10 V 0 V –1.0 to 1.0 V

1 to 5 V 1 V 0.8 to 1.2 V

4 to 20 mA 4 mA 3.2 to 4.8 mA

4. With the voltage or current having been input so that the conversion value
for the Analog Input Unit is 0000, turn bit 04 (the Set Bit) of IR word n+1 ON
and then OFF again.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

4

E

MONTR

10104 10100
^OFF ^ ON

PLAY

SET

10104 10100
ON ^ ON

REC

RESET

10104 10100
OFF ^ ON

!

2-6SectionOffset and Gain Adjustment

30

While the Offset Bit is ON, the offset value will be saved to the Unit’s EE­PROM when the Set Bit turns ON.

5. To finish the offset adjustment, turn OFF bit 00 (the Offset Bit) of IR word
n+1.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

0

A

MONTR

10100 10104
^ ON ^OFF

REC

RESET

10100 10104
OFF ^OFF

Caution Do not turn OFF the power supply or restart the Unit while the Set Bit is ON (data

is being written to the EEPROM). Otherwise, illegal data may be written in the
Unit’s EEPROM and “Special I/O Unit Errors” may occur when the power supply
is turned ON or when the Unit is restarted, causing a malfunction.
When making adjustments, be sure to perform both the offset adjustment and
gain adjustment.

Note The EEPROM can be overwritten 50,000 times.

The procedure for adjusting the analog input gain is explained below. As shown
in the following diagram, the gain is adjusted by sampling inputs so that the con­version value is maximized.

10 V0

0FA0

Input signal range:
0 to 10 V

Gain adjustment input range

The following example uses input number 1 adjustment for illustration. (The unit
number is 0.)

1, 2, 3... 1. Turn ON bit 01 (the Gain Bit) of IR word n+1. (Hold the ON status.)

SHIFT

CONT

#

1

B

0

A

1

B

0

A

1

B

MONTR

10101
^OFF

PLAY

SET

10101
ON

The analog input’s digital conversion values while the Gain Bit is ON will be
monitored in IR word n+8.

Gain Adjustment

2-6SectionOffset and Gain Adjustment

31

2. Check whether the input devices are connected.

A0

A1

A2

A3

A0

A1

A2

A3

+

–

+

–

Voltage input

Input 1

Current input

Input 1

3. Input the voltage or current so that the conversion value is maximized (0FA0
or 07D0). The following table shows the the gain adjustment voltages and
currents to be input according to the input signal range.

Input signal range Input voltage/current Input range

0 to 10 V 10 V 9.5 to 10.5 V

–10 to 10 V 10 V 9.0 to 11.0 V

1 to 5 V 5 V 4.8 to 5.2 V

4 to 20 mA 20 mA 19.2 to 20.8 mA

4. With the voltage or current having been input so that the conversion value
for the Analog Input Unit is maximized (0FA0 or 07D0), turn bit 04 (the Set
Bit) of IR word n+1 ON and then OFF again.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

4

E

MONTR

10104 10101
^OFF ^ ON

PLAY

SET

10104 10101
ON ^ ON

REC

RESET

10104 10101
OFF ^ ON

While the Gain Bit is ON, the gain value will be saved to the Unit’s EEPROM
when the Set Bit turns ON.

5. To finish the gain adjustment, turn OFF bit 01 (the Gain Bit) of IR word n+1.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

1

B

MONTR

10101 10104
^ ON ^OFF

REC

RESET

10101 10104
OFF ^OFF

!

!

2-6SectionOffset and Gain Adjustment

32

Caution Do not turn OFF the power supply or restart the Unit while the Set Bit is ON (data

is being written to the EEPROM). Otherwise, illegal data may be written in the
Unit’s EEPROM and “Special I/O Unit Errors” may occur when the power supply
is turned ON or when the Unit is restarted, causing a malfunction.
When making adjustments, be sure to perform both the offset adjustment and
gain adjustment.

Note The EEPROM can be overwritten 50,000 times.

Follow the procedure outlined below to return the offset and gain adjusted val­ues to their default settings.

The following example uses input number 1 adjustment for illustration. (The unit
number is 0.)

1, 2, 3... 1. Turn ON bit 05 (the Clear Bit) of IR word n+1. (Hold the ON status.) Regard-

less of the input value, 0000 will be monitored in IR word n+8.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

5

F

MONTR

10105
^OFF

PLAY

SET

10105
ON

2. Turn bit 04 of IR word n+1 ON and then OFF again.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

4

E

MONTR

10104 10105
^OFF ^ ON

PLAY

SET

10104 10105
ON ^ ON

REC

RESET

10104 10105
OFF ^ ON

While the Clear Bit is ON, the default offset and gain values will be saved to
the Unit’s EEPROM when the Set Bit turns ON.

3. To finish the clearing of adjusted values, turn OFF bit 05 (the Clear Bit) of IR
word n+1.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

5

F

MONTR

10105 10104
^ ON ^OFF

PLAY

SET

10105 10104
OFF ^OFF

Caution Do not turn OFF the power supply or restart the Unit while the Set Bit is ON (data

is being written to the EEPROM). Otherwise, illegal data may be written in the
Unit’s EEPROM and “Special I/O Unit Errors” may occur when the power supply
is turned ON or when the Unit is restarted, causing a malfunction.

Clearing Offset and Gain
Adjusted Values

2-7SectionError Processing

33

Note The EEPROM can be overwritten 50,000 times.

2-7 Error Processing

2-7-1 Troubleshooting Procedure

Use the following procedure for troubleshooting Analog Input Unit errors.

1, 2, 3... 1. Error occurs.

2. Is the ERROR indicator lit?
Yes: Error detected by Analog Input Unit

(Refer to 2-7-2 Errors Detected by Analog Input Unit.)

No: Go to the next step.

3. Is the RUN indicator lit?
Yes: Error detected by CPU Unit

(Refer to 2-7-3 Errors Detected by CPU Unit.)
Check whether the operation mode switch on the back of the Analog
Input Unit is set correctly.

No: Refer to 2-7-5 Troubleshooting.

If both the ERROR and RUN indicators are lit, check whether the operation
mode switch on the back of the Analog Input Unit is set correctly.

2-7-2 Errors Detected by Analog Input Unit

When an error occurs at the Analog Input Unit, the ERROR indicator on the front
panel of the Unit lights and the error code is stored in bits 08 to 15 of IR word n+9.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Word n+9

Error code

Disconnection detection flags
for input numbers 1 to 8.

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Error
code

Error contents Countermeasure

8 0 In adjustment mode, offset or gain

cannot be adjusted because input
value is out of the permissible
range for adjustment.

If making the adjustment by means
of a connected input device, first
adjust the input device before
adjusting the Analog Input Unit.

8 1 In adjustment mode, adjustment

cannot be performed because the
specified input number is not set
for use or because the wrong input
number is specified.

Check whether the word n input
number to be adjusted is set from
21 to 28.

Check whether the input number to
be adjusted is set for use by
means of the DM setting.

8 2 A disconnection was detected.

(See note.)

Check the rightmost byte of IR
word n+9. The inputs for bits that
are ON may be disconnected.
Restore any disconnected inputs.

8 8 An EEPROM writing error has

occurred while in adjustment
mode.

Turn the Set Bit OFF, ON, and OFF
again.

If the error persists even after the
reset, replace the Analog Input
Unit.

F 3 The wrong number of samplings

has been specified for mean
processing.

Specify a number from 0000 to

0004.

2-7SectionError Processing

34

Note Disconnection detection (82) operates for input numbers used with a range of 1

to 5 V (4 to 20 mA).
Errors indicated with 8j codes are automatically reset when proper counter­measures are taken. The errors indicated with Fj codes are cleared when the
power is turned on after making the correct settings and when the Special I/O
Unit Restart Bit is turned OFF, ON, and OFF again.

2-7-3 Errors Detected by CPU Unit

When the CPU Unit detects an error at a Special I/O Unit, it outputs to the CPU
Unit’s SR and AR areas as shown below.

Special I/O Unit Error Flag

Bit Error Contents CPU Unit status LED indicators

25415

I/O UNIT OVER The same unit number

has been set for more
than one Special I/O Unit.

CPU Unit operation is
stopped.

RUN: Not lit
ERROR:Not lit

SPECIAL I/O UNIT
ERROR

Error occurred in I/O
refresh between Special
I/O Unit and CPU Unit.

Operation is stopped only
for faulty Unit.

RUN: Not lit
ERROR:Not lit

Special I/O Unit Error Flags

Bits

Functions

C200HX/HG/HE

C200H/HS

28200 AR 0000 Unit #0 Error Flag

Turns ON for any unit

28201 AR 0001 Unit #1 Error Flag

y

number when I/O

28202 AR 0002 Unit #2 Error Flag

UNIT OVER

or

SPECIAL I/O UNIT

28203 AR 0003 Unit #3 Error Flag

SPECIAL I/O UNIT

ERROR occurs.

28204 AR 0004 Unit #4 Error Flag

28205 AR 0005 Unit #5 Error Flag

28206 AR 0006 Unit #6 Error Flag

28207 AR 0007 Unit #7 Error Flag

28208 AR 0008 Unit #8 Error Flag

28209 AR 0009 Unit #9 Error Flag

28210 (See note.) --- Unit #A Error Flag

28211 (See note.) --- Unit #B Error Flag

28212 (See note.) --- Unit #C Error Flag

28213 (See note.) --- Unit #D Error Flag

28214 (See note.) --- Unit #E Error Flag

28215 (See note.) --- Unit #F Error Flag

Note SR bits 28210 to 28215 cannot be used with C200HE and C200HX/HG-

CPU3j-E/4j-E PCs.

2-7-4 Restarting Special I/O Units

There are two ways to restart Special I/O Unit operation after having changed
DM contents or having corrected the cause of an error. The first way is to power
up the PC again, and the second way is to turn the Special I/O Unit Restart Bit
ON and then OFF again.

2-7SectionError Processing

35

Special I/O Unit Restart Bits

Bits

Functions

C200HX/HG/HE

C200H/HS

28100 AR 0100 Unit #0 Restart Bit

Turning the Restart Bit

28101 AR 0101 Unit #1 Restart Bit

g

for any Unit ON and

28102 AR 0102 Unit #2 Restart Bit

then

OFF

again

restarts that Unit.

28103 AR 0103 Unit #3 Restart Bit

restarts that Unit

.

28104 AR 0104 Unit #4 Restart Bit

28105 AR 0105 Unit #5 Restart Bit

28106 AR 0106 Unit #6 Restart Bit

28107 AR 0107 Unit #7 Restart Bit

28108 AR 0108 Unit #8 Restart Bit

28109 AR 0109 Unit #9 Restart Bit

28110 (See note.) --- Unit #A Restart Bit

28111 (See note.) --- Unit #B Restart Bit

28112 (See note.) --- Unit #C Restart Bit

28113 (See note.) --- Unit #D Restart Bit

28114 (See note.) --- Unit #E Restart Bit

28115 (See note.) --- Unit #F Restart Bit

Note SR bits 28210 to 28215 cannot be used with C200HE and C200HX/HG-

CPU3j-E/4j-E PCs.

If the error is not cleared even after turning the Special I/O Unit Restart Bit ON
and then OFF again, then replace the Unit.

2-7-5 Troubleshooting

The following tables explain the probable causes of troubles that may occur, and
the countermeasures for dealing with them.

Probable cause Countermeasure Page

The input is not set for being used. Set the input to be used. 21

The peak value function is in
operation.

Turn off the peak value function if it
is not required.

25

The input device is not working, the
input wiring is wrong, or there is a
disconnection.

Using a tester, check to see if the
input voltage or current is
changing.

16

Use Unit’s error codes to check for
a disconnection.

25, 34

Probable cause Countermeasure Page

The input device’s signal range
does not match the input signal
range for the relevant input number
at the Analog Input Unit.

Check the specifications of the
input device, and match the
settings for the input signal ranges.

21

The offset and gain are not
adjusted.

Adjust the offset and gain. 27

When using the 4 mA to 20 mA
range, the voltage input (+)
terminal and the current input (+)
terminal are not connected.

Connect the terminals. 16

Conversion Data Does
Not Change

Value Does Not Change
as Intended

2-7SectionError Processing

36

Probable cause Countermeasure Page

The input signals are being
affected by external noise.

Change the shielded cable
connection to the Unit’s COM
terminal.

16

Insert a 0.01-µF to 0.1-µF ceramic
capacitor or film capacitor between
the input’s (+) and (–) terminals.

---

Try increasing the number of mean
value processing buffers.

23

Conversion Values are
Inconsistent

37

SECTION 3

C200H-DA003 and C200H-DA004 Analog Output Units

This section provides the information required to install and operate a C200H-DA003 or C200H-DA004 Analog Output Unit.

3-1 Specifications 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1-1 General Specifications 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1-2 Performance Specifications 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1-3 Output Specifications 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 Nomenclature and Functions 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-1 Indicators 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-2 Unit Number Switch 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-3 Operation Mode Switch 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3 Wiring 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3-1 Terminal Arrangement 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3-2 Internal Circuitry 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3-3 Output Wiring Examples 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3-4 Output Wiring Considerations 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 IR and DM Areas 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4-1 IR Area Allocation and Contents 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4-2 DM Allocation and Contents 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5 Using the Functions 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5-1 Setting Outputs and Signal Ranges 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5-2 Output Hold Function 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5-3 Writing Set Values 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5-4 Starting and Stopping Conversion 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5-5 Output Setting Errors 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6 Offset and Gain Adjustment 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6-1 Adjustment Mode Operational Flow 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6-2 Offset and Gain Adjustment Procedures 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7 Error Processing 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7-1 Troubleshooting Procedure 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7-2 Errors Detected by Analog Output Unit 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7-3 Errors Detected by CPU Unit 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7-4 Restarting Special I/O Units 63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7-5 Troubleshooting 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1SectionSpecifications

38

3-1 Specifications

3-1-1 General Specifications

All general specifications of the C200H-DA003/DA004 Analog Output Units
conform to those of the C200H, C200HS, and C200HX/HG/HE Series.

3-1-2 Performance Specifications

Item C200H-DA003 C200H-DA004

Number of analog outputs 8

Output signal range (note 1) 0 to 10 V

–10 to 10 V
1 to 5 V

4 to 20 mA

Output impedance 0.5 Ω max. ---

Max. output current 12 mA ---

Max. load resistance --- 600 Ω max.

Resolution 1/4000 (full scale)

Set data 16-bit binary data

Accuracy

23°±2°C

±0.3% of full scale ±0.5% of full scale

(note 2)

0° to 55°C

±0.5% of full scale ±0.8% of full scale

Conversion time (note 3) 1.0 ms/point

Isolation Between input terminals and PC: photocoupler

(No isolation between individual output signals.)

External connectors 28-point terminal block (M3 screws)

Power consumption

100 mA max. at 5 VDC

p

200 mA max. at 26 VDC 250 mA max. at 26 VDC

Dimensions 34.5 x 130 x 128 (W x H x D) mm (refer to Appendix

A Dimensions)

Weight 450 g max.

Note 1. The output signal range can be set individually for each output.

2. The accuracy is given for full scale. For example, an accuracy of ±0.3%
means a maximum error of ±12 (BCD).

3. This is the time required for converting and outputting the PC data. It takes at
least one cycle for the data stored in the PC to be read by the Analog Output
Unit.
By executing an I/O refresh, the conversion time may be extended by an
additional 0.3 ms approximately.

4. The default setting for the load resistance of the C200H-DA004 is 250 Ω.
When using a load resistance other than 250 Ω, perform the offset and gain
adjustment as required.

3-1SectionSpecifications

39

3-1-3 Output Specifications

Range: 1 to 5 V (4 to 20 mA)

5.2 V (20.8mA)
5 V (20mA)

1 V (4mA)

0.8 V (3.2mA)

0000

FF38

OFA0

1068

Resolution: 4,000

Set value (16-bit binary data)

Analog output signal

Range: 0 to 10 V

0000

FF38

OFA0

1068

+10.5 V

+10 V

0 V

–0.5 V

Resolution: 4,000

Set value (16-bit binary data)

Analog output signal

3-2SectionNomenclature and Functions

40

Range: –10 to 10 V

0000

F830

F768

07D0

0898

0 V

–10 V
–11 V

+11 V
+10V

Resolution: 4,000

Set value (16-bit binary data)

Analog output signal

3-2 Nomenclature and Functions

The model shown here is the C200H-DA003

Model label

Unit number setting switch

Terminal block mounting
screw (black M3)

External output terminal
block (M3)

Indicators

Operation mode switch

Backplane connector

Front Back

The terminal block is attached by a connector. It can be removed by loosening
the black mounting screw. When removing the terminal block after wiring, re­move the wire connected to the top terminal of the right column.

3-2SectionNomenclature and Functions

41

Check to be sure that the black terminal block mounting screw is securely tight­ened to a torque of 0.5 N S m.

Fasten the mounting screw.

3-2-1 Indicators

The RUN and ERROR indicators show the operating status of the Unit. The fol­lowing table shows the meanings of the indicators.

LED Indicator Operating status

RUN (green)

Lit Operating in normal mode.

(g )

Flashes Operating in adjustment mode.

Not lit Abnormal (Unit operation stopped)

ERROR (red)

Lit Error occurred. The error codes are stored in bits

08 to 15 of word n+9.

Not lit Other than the above.

3-2-2 Unit Number Switch

The CPU Unit and Analog Output Unit exchange data via the IR area and the DM
area. The IR and DM word addresses that each Analog Input Unit occupies are
set by the unit number switch on the front panel of the Unit.

Always turn off the power before setting the unit number. Use a flat-blade screw­driver, being careful not to damage the slot in the screw. Be sure not to leave the
switch midway between settings.

Switch setting Unit number IR words DM words

0 Unit #0 IR 100 to 109 DM 1000 to 1099

1 Unit #1 IR 110 to 119 DM 1100 to 1199

2 Unit #2 IR 120 to 129 DM 1200 to 1299

3 Unit #3 IR 130 to 139 DM 1300 to 1399

4 Unit #4 IR 140 to 149 DM 1400 to 1499

5 Unit #5 IR 150 to 159 DM 1500 to 1599

6 Unit #6 IR 160 to 169 DM 1600 to 1699

7 Unit #7 IR 170 to 179 DM 1700 to 1799

8 Unit #8 IR 180 to 189 DM 1800 to 1899

9 Unit #9 IR 190 to 199 DM 1900 to 1999

A Unit #A IR 400 to 409 DM 2000 to 2099

B Unit #B IR 410 to 419 DM 2100 to 2199

C Unit #C IR 420 to 429 DM 2200 to 2299

D Unit #D IR 430 to 439 DM 2300 to 2399

E Unit #E IR 440 to 449 DM 2400 to 2499

F Unit #F IR 450 to 459 DM 2500 to 2599

Note 1. Switches A to F can be set for the C200HX/HG-CPU5j-E/6j-E. Setting

numbers A to F for C200H, C200HS, C200HE, or C200HX/HG­CPU3j-E/4j-E PCs will cause an I/O UNIT OVER error and the Unit will
not operate.

!

!

3-3SectionWiring

42

2. If two or more Special I/O Units are assigned the same unit number, an I/O
UNIT OVER error will be generated and the PC will not operate.

3-2-3 Operation Mode Switch

The operation mode switch on the back of the Unit is used to set the operation
mode to either normal mode or adjustment mode (for adjusting offset and gain).

Pin number

Mode

1 2 3 4

OFF OFF OFF OFF Normal mode

ON OFF OFF OFF Adjustment mode

Caution Do not set the pins to any combination other than those shown in the above

table. Be sure to set pins 2, 3, and 4 to OFF.

Caution Be sure to turn off the power to the PC before changing the operation mode

switch settings.

3-3 Wiring

3-3-1 Terminal Arrangement

The signal names corresponding to the connecting terminals are as shown in the
following diagram.

Voltage Output Model (C200H-DA003)

Voltage output 2 (+) B0

Voltage output 2 (–) B1

NC B2

Voltage output 4 (+) B3

Voltage output 4 (–) B4

NC B5

Voltage output 6 (+) B6

Voltage output 6 (–) B7

NC B8

Voltage output 8 (+) B9

Voltage output 8 (–) B10

NC B11

NC B12

NC B13

Voltage output 1 (+)A0

Voltage output 1 (–)A1

NCA2

Voltage output 3 (+)A3

Voltage output 3 (–)A4

NCA5

Voltage output 5 (+)A6

Voltage output 5 (–)A7

NCA8

Voltage output 7 (+)A9

Voltage output 7 (–)A10

NCA11

NCA12

NCA13

3-3SectionWiring

43

Current Output Model (C200H-DA004)

NC B0

Current output 2 (–) B1

Current output 2 (+) B2

NC B3

Current output 4 (–) B4

Current output 4 (+) B5

NC B6

Current output 6 (–) B7

Current output 6 (+) B8

NC B9

Current output 8 (–) B10

Current output 8 (+) B11

NC B12

NC B13

NCA0

Current output 1 (–)A1

Current output 1 (+)A2

NCA3

Current output 3 (–)A4

Current output 3 (+)A5

NCA6

Current output 5 (–)A7

Current output 5 (+)A8

NCA9

Current output 7 (–)A10

Current output 7 (+)A11

NCA12

NCA13

Note 1. The analog output numbers that can be used are set in the Data Memory

(DM).

2. The output signal ranges for individual outputs are set in the Data Memory
(DM). Setting is possible for every Analog Output Unit output number.

3-3-2 Internal Circuitry

The following diagrams show the internal circuitry of the analog output section.

Voltage Output Model (C200H-DA003)

Output
switch and
conversion
circuit

AMP

Voltage
output (+)

Voltage
output (–)

AG (common to all outputs)

Current Output Model (C200H-DA004)

Output
switch and
conversion
circuit

AMP

Current
output (+)

Current
output (–)

Internal power supply

3-3SectionWiring

44

3-3-3 Output Wiring Examples

Voltage Output Model (C200H-DA003)

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

B0

B1

B2

B3

B4

B5

B6

B7

B8

B9

B10

B11

B12

B13

(Output device)

(Output device)

Output 2

Output 4

Output 6

Output 8

Output 1

Output 3

Output 5

Output 7

C200H-DA003

Current Output Model (C200H-DA004)

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

B0

B1

B2

B3

B4

B5

B6

B7

B8

B9

B10

B11

B12

B13

(Output device)

(Output device)

Output 2

Output 4

Output 6

Output 8

Output 1

Output 3

Output 5

Output 7

C200H-DA004

3-3SectionWiring

45

Note Crimp-type terminals must be used for terminal connections, and the screws

must be tightened securely. Use M3 screws and tighten them to a torque of

0.5 N S m.

6.0 mm max.

6.0 mm max.

M3 screw

Fork Type

Round Type

To minimize output wiring noise, ground the output signal line to the output de­vice.

3-3-4 Output Wiring Considerations

When wiring outputs, apply the following points to avoid noise interference and
optimize Analog Output Unit performance.

• Use shielded twisted-pair cable for external connections.

• Route output cables separately from the AC cable, and do not run the Unit’s

cables near a main circuit cable, high voltage cable, or a non-PC load cable.

• If there is noise interference from power lines (if, for example, the power supply
is shared with electrical welding devices or electrical discharge machines, or if
there is a high-frequency generation source nearby) install a noise filter at the
power supply output area.

• When the power supply to the PC is turned on or off, momentary voltage or
current may be output from the output terminal.

3-4SectionIR and DM Areas

46

3-4 IR and DM Areas

The IR and DM word addresses that each Analog Output Unit occupies are set
by the unit number switch on the front panel of the Unit. (For details on setting the
unit number, refer to 3-2-2 Unit Number Switch.)

3-4-1 IR Area Allocation and Contents

IR Area Allocation

IR n +9

IR n
to
IR n+8

IR 130 to 139

IR 140 to 149

IR 150 to 159

IR 100 to 109

IR 110 to 119

IR 120 to 129

IR 190 to 199

IR 160 to 169

IR 170 to 179

IR 180 to 189

SYSMAC C200H/C200HS/C200HX/HG/HE PC C200H-DA003/DA004 Analog Output Unit

IN refresh

(I/O refresh data area)

Unit #0

Unit #1

Unit #2

Unit #3

Unit #4

Unit #5

Unit #6

Unit #7

Unit #8

Unit #9

(Work area)

At the I/O refresh by the
PC, outputs (CPU to
Unit) and inputs (Unit to
CPU) are refreshed in
order with every cycle.

OUT refresh

Words

IR 430 to 439

IR 440 to 449

IR 450 to 459

IR 400 to 409

IR 410 to 419

IR 420 to 429

Unit #A

Unit #B

Unit #C

Unit #D

Unit #E

Unit #F

Normal Mode

IR n + 8
to
IR n +9

IR n
to
IR n + 7

IN refresh

OUT refresh

Adjustment Mode

n = 100 + 10 x unit number, except
for Units #A to #F (10 to 15) where:
n = 400 + 10 x (unit number – 10)

Note 1. Switches A to F can be set for the C200HX/HG-CPU5j-E/6j-E. Setting

numbers A to F for C200H, C200HS, C200HE, or C200HX/HG­CPU3j-E/4j-E PCs will cause an I/O UNIT OVER error and the Unit will
not operate.

2. If two or more Special I/O Units are assigned the same unit number, an I/O
UNIT OVER error will be generated and operation will stop.

3-4SectionIR and DM Areas

47

For normal mode, set the operation mode switch on the rear panel of the Unit as
shown in the following diagram.

The allocation of IR words and bits is shown in the following table.

I/O Word

Bits

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Output

n Not used.

Conversion enable outputs

p

(CPU to

8 7 6 5 4 3 2 1

Unit)

n+1

Output 1 set value

16

3

16

2

16

1

16

0

n+2 Output 2 set value

n+3 Output 3 set value

n+4 Output 4 set value

n+5 Output 5 set value

n+6 Output 6 set value

n+7 Output 7 set value

n+8 Output 8 set value

Input

n+9

Error code Output setting error outputs

(Unit t

o

CPU)

16

1

16

0

8 7 6 5 4 3 2 1

Note For the IR word addresses, n = 100 + 10 x unit number.

For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Set Values and Stored Values

Item Contents

Conversion enable 0: Stop conversion output

1: Begin conversion output

Set value 16-bit binary data

Output setting error 0: No error

1: Output setting error

Error code Two digits, hexadecimal (00 for no error)

Allocation for Normal
Mode

3-4SectionIR and DM Areas

48

For adjustment mode, set the operation mode switch on the rear panel of the
Unit as shown in the following diagram. When the Unit is set for adjustment
mode, the RUN indicator on the front panel of the Unit will flash.

The allocation of IR words and bits is shown in the following table.

I/O Word

Bits

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Output

n Not used.

Outputs to be adjusted

p

(CPU to

16

1

16

0

unit

)

n+1 Not used. Not used. Clr Set Up Down Gain Off-

set
n+2 Not used.

n+3 Not used.

n+4 Not used.

n+5 Not used.

n+6 Not used.

n+7 Not used.

Input

n+8

Conversion value for adjustment

p

(unit to

16

3

16

2

16

1

16

0

CPU)

n+9

Error code Not used.

16

1

16

0

Note For the IR word addresses, n = 100 + 10 x unit number.

For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Set Values and Stored Values

Item Contents

Input to be adjusted Sets input to be adjusted. Leftmost digit: Fixed at 2.

Rightmost digit: 1 to 8

Offset (Offset Bit) When ON, adjusts offset deviation.

Gain (Gain Bit) When ON, adjusts gain deviation.

Down (Down Bit) Decrements the adjustment value while ON.

Up (Up Bit) Increments the adjustment value while ON.

Set (Set Bit) Sets adjusted value and writes to EEPROM.

Clr (Clear Bit) Clears adjusted value. (Returns to default status)

Conversion value for
adjustment

The conversion value for adjustment is stored as 16
bits of binary data.

Error code Two digits, hexadecimal (00 for no error)

Allocation for
Adjustment Mode

3-4SectionIR and DM Areas

49

3-4-2 DM Allocation and Contents

DM Allocation

DM (m+1)

DM (m)

DM 1300 to 1399

DM 1400 to 1499

DM 1500 to 1599

DM 1000 to 1099

DM 1100 to 1199

DM 1200 to 1299

DM 1900 to 1999

DM 1600 to 1699

DM 1700 to 1799

DM 1800 to 1899

SYSMAC C200H/C200HS/C200HX/HG/HE PC C200H-DA003/DA004 Analog Output Unit

Output signal
range setting

Fixed data area

Unit #0

Unit #1

Unit #2

Unit #3

Unit #4

Unit #5

Unit #6

Unit #7

Unit #8

Unit #9

Data Memory (DM)

Data is automatically
transferred to each unit
number when the power
is turned on, or when the
Special I/O Unit Restart
Bit is turned ON.

Use designation

DM words

DM 2300 to 2399

DM 2400 to 2499

DM 2500 to 2599

DM 2000 to 2099

DM 2100 to 2199

DM 2200 to 2299

Unit #A

Unit #B

Unit #C

Unit #D

Unit #E

Unit #F

DM (m+2
to m+9)

Output hold
function setting

m = 1000 + 100 x unit number
(Units #A to #F = Unit numbers 10 to 15)

Note 1. Switches A to F can be set for the C200HX/HG-CPU5j-E/6j-E. Setting

numbers A to F for C200H, C200HS, C200HE, or C200HX/HG­CPU3j-E/4j-E PCs will cause an I/O UNIT OVER error and the Unit will
not operate.

2. If two or more Special I/O Units are assigned the same unit number, an I/O
UNIT OVER error will be generated and operation will stop.

The following table shows the allocation of DM words and bits for both normal
and adjustment mode.

DM word

Bits

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

DM (m) Not used.

Use designation outputs

()

8 7 6 5 4 3 2 1

DM (m+1)

Output signal range setting (See note 1.)

()

Output 8 Output 7 Output 6 Output 5 Output 4 Output 3 Output 2 Output 1

DM (m+2) Not used. Output 1: Output status when conversion stopped

DM (m+3) Not used. Output 2: Output status when conversion stopped

DM (m+4) Not used. Output 3: Output status when conversion stopped

DM (m+5) Not used. Output 4: Output status when conversion stopped

DM (m+6) Not used. Output 5: Output status when conversion stopped

DM (m+7) Not used. Output 6: Output status when conversion stopped

DM (m+8) Not used. Output 7: Output status when conversion stopped

DM (m+9) Not used. Output 8: Output status when conversion stopped

Note 1. This setting is not valid for the C200H-DA004 (current output model). The

output signal range for the C200-DA004 is 4 to 20 mA, regardless of the set­tings.

DM Allocation Contents

3-5SectionUsing the Functions

50

2. For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F =
Unit numbers 10 to 15).

Set Values and Stored Values

Item Contents

Use designation 0: Do not use.

1: Use.

Output signal range 00: –10 to 10 V

01: 0 to 10 V (See note.)
10: 1 to 5 V
11: Same as for setting “10” above.

Output status when
stopped

00: CLR 0 output
01: HOLD Hold output prior to stop
02: MAX Output maximum value of range

Note This setting is not valid for the C200H-DA004 (current output model). The output

signal range for the C200-DA004 is 4 to 20 mA, regardless of the settings.

3-5 Using the Functions

3-5-1 Setting Outputs and Signal Ranges

The Analog Output Units only convert analog outputs specified by output num­bers 1 to 8. In order to specify the analog outputs to be used, turn ON from a
Peripheral Device the DM bits shown in the following diagram.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Output 8

Output 7

Output 6

Output 5

Output 4

Output 3

Output 2

Output 1

DM (m)

0: Do not use
1: Use

The analog output conversion cycle can be shortened by setting any unused
output numbers to 0.

Conversion cycle = (1 ms) x (Number of outputs used)

For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).

With the C200H-DA003 (voltage output model), any of three types of output sig­nal range can be selected for each of the eight outputs (output numbers 1 to 8).
In order to specify the output signal range for each output, set from a Peripheral
Device the DM bits shown in the following diagram.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Output 8

Output 7

Output 6

Output 5

Output 4

Output 3

Output 2

Output 1

DM (m+1)

00: -10 to 10 V
01: 0 to 10 V
10: 1 to 5 V
11: Same as 10 above.

Output Numbers

Output Signal Range

3-5SectionUsing the Functions

51

For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).

This setting is not valid for the C200H-DA004 (current output model). The output
signal range for the C200-DA004 is 4 to 20 mA, regardless of the settings.

Note After making the DM settings from a Peripheral Device, it will be necessary to

either power up the PC again or turn ON the Special I/O Unit Restart Bit in order
to transfer the contents of the DM settings to the Special I/O Unit. For details re­garding the Special I/O Unit Restart Bit, refer to 3-7-4 Restarting Special I/O
Units.

3-5-2 Output Hold Function

The Analog Output Units stop conversion under the following circumstances,
and output the value set by the output hold function.

1, 2, 3... 1. When the Conversion Enable Bit is OFF. (Refer to 3-4-1 IR Area Allocation.)

2. In adjustment mode, when something other than the output number is out­put during adjustment. (Refer to 3-6-1 Adjustment Mode Operational Flow.)

3. When there is an output setting error. (Refer to 3-5-5 Output Setting Errors.)

4. When a fatal error occurs at the PC. (Refer to the C200HX/HG/HE Program-
ming Manual.)

CLR, HOLD, or MAX can be selected for the output status when conversion is
stopped.

Output signal

range

CLR HOLD MAX

0 to 10 V –0.5 V (Min.–5%

of full scale)

Voltage that was output
just prior to stop.

10.5 V (Max.+5%
of full scale)

–10 to 10 V 0.0 V Voltage that was output

just prior to stop.

11.0 V (Max.+5%
of full scale)

1 to 5 V 0.8 V (Min.–5% of

full scale)

Voltage that was output
just prior to stop.

5.2 V (Max.+5% of
full scale)

4 to 20 mA 3.2 mA (Min.–5%

of full scale)

Current that was output
just prior to stop.

20.8 mA
(Max.+5% of full
scale)

In order to specify the the output hold function, set from a Peripheral Device the
DM words shown in the following table.

DM word Function Set value

DM (m+2) Output 1: Output status when stopped

xx00: CLR

DM (m+3) Output 2: Output status when stopped

0 output

DM (m+4) Output 3: Output status when stopped

xx01: HOLD

DM (m+5) Output 4: Output status when stopped

Hold output value

prior to stop

DM (m+6) Output 5: Output status when stopped

pp

xx02: MAX

DM (m+7) Output 6: Output status when stopped

Output maximum

DM (m+8) Output 7: Output status when stopped

value of range

DM (m+9) Output 8: Output status when stopped

Set

any value in the

leftmost bytes (xx).

For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).

Note After making the DM settings from a Peripheral Device, it will be necessary to

either power up the PC again or turn ON the Special I/O Unit Restart Bit in order
to transfer the contents of the DM settings to the Special I/O Unit. For details re­garding the Special I/O Unit Restart Bit, refer to 3-7-4 Restarting Special I/O
Units.

3-5SectionUsing the Functions

52

3-5-3 Writing Set Values

Analog output set values are written to IR words n+1 through n+8.

Word Function Stored value

n+1 Output 1 set value

16-bit binary data

n+2 Output 2 set value

y

n+3 Output 3 set value

n+4 Output 4 set value

n+5 Output 5 set value

n+6 Output 6 set value

n+7 Output 7 set value

n+8 Output 8 set value

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Use MOV(21) or XFER(70) to write values in the user program.

In this example, the set value from only one input is read. (The unit number is
#0.)

MOV (21)

DM0001

101

Input condition

The set value stored in DM 0001
is written to IR word 101 (output
number 1).

In this example, multiple set values are written. (The unit number is #0.)

XFER(70)

#0004

DM0001

101

Input condition

The set values stored in DM 0001
to DM 0004 are written to IR words
101 to 104 (outputs 1 to 4).

For details regarding set value scaling, refer to page 118, Sample Program 5:
Scaling Function.

Note Turn ON the Conversion Enable Bit for converting set values into analog output.

3-5-4 Starting and Stopping Conversion

To begin analog output conversion, turn ON the corresponding Conversion En­able Bit (word n, bits 00 to 07) from the user’s program.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Output 8

Output 7

Output 6

Output 5

Output 4

Output 3

Output 2

Output 1

Analog conversion is executed while
these bits are ON. When the bits are
turned OFF, the conversion is stopped
and the output data is held. (Refer to
3-5-2 Output Hold Function.)

Word n

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Example 1

Example 2

3-5SectionUsing the Functions

53

The analog output when conversion is stopped will differ depending on the out­put signal range setting. (Refer to 3-5-1 Setting Outputs and Signal Ranges.)

Conversion will not begin under the following conditions even if the Conversion
Enable Bit is turned ON.

1, 2, 3... 1. In adjustment mode, when something other than the output number is out-

put during adjustment. (Refer to 3-6-1 Adjustment Mode Operational Flow.)

2. When there is an output setting error. (Refer to 3-5-5 Output Setting Errors.)

3. When a fatal error occurs at the PC. (Refer to the C200HX/HG/HE Program-
ming Manual.)

In this example, conversion is begun for analog output number 1. (The unit num­ber is #0.)

10000

Input condition

Conversion
begins for
output
number 1.

3-5-5 Output Setting Errors

If the analog output set value is outside of the range, a setting error signal will be
stored in IR word n+9 (bits 00 to 07). To use disconnection detection with the
user’s program, set these bits as execution conditions in the ladder program.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Output 8

Output 7

Output 6

Output 5

Output 4

Output 3

Output 2

Output 1

Word n+9

When a setting error is detected for a
particular output, the corresponding
bit turns ON. When the error is
cleared, the bit turns OFF.

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

The voltage or current for an output number at which an output setting error has
occurred will be output according to the output hold function.

!

3-6SectionOffset and Gain Adjustment

54

3-6 Offset and Gain Adjustment

This function is designed to calibrate outputs depending on devices to be con­nected.

3-6-1 Adjustment Mode Operational Flow

The following diagram shows the flow of operations when using the adjustment
mode for adjusting offset and gain.

Change the operation mode switch on the back of the Unit

Power up the PC

When adjusting another output number

When adjusting the same output number

Set the output number

Offset adjustment (Refer to page 55)

Offset Bit ON

(Bit 0 of IR word n+1 turns ON.)

Adjustment value setting

(Bits 2 and 3 of IR word n+1
turn ON.)

Set Bit ON

(Bit 4 of IR word n+1 turns ON.)

Turn off power to the PC

Change the operation mode switch on the back of the Unit

Set the operation mode switch to normal mode.

Set the operation mode switch to adjustment mode.

The RUN indicator will flash while
in adjustment mode.

Write the output number to be adjusted
in the rightmost byte of IR word n.

Gain adjustment (Refer to page 58)

Gain Bit ON

(Bit 1 of IR word n+1 turns ON.)

Adjustment value setting

(Bits 2 and 3 of IR word n+1
turn ON.)

Set Bit ON

(Bit 4 of IR word n+1 turns ON.)

Refer to 3-6-2 Offset and Gain

Adjustment Procedures

Caution Be sure to turn off the power to the PC before changing the operation mode

switch settings.
If the I/O table is registered in the PC, an I/O setting error may occur, not allowing
any adjustment. In such a case, either cancel the I/O table or create the I/O table
again.
When making adjustments, be sure to perform both the offset adjustment and
gain adjustment.

3-6SectionOffset and Gain Adjustment

55

3-6-2 Offset and Gain Adjustment Procedures

To specify the output number to be adjusted, write the value to the rightmost byte
of IR word n as shown in the following diagram.

(Rightmost)

(Leftmost)

Word n

Output to be adjusted (1 to 8)

I/O specification
1: Output (fixed)

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

The following example uses output number 1 adjustment for illustration. (The
unit number is 0.)

CLR

00000

SHIFT

CH

*

1

B

0

A

0

A

MONTR

c100
0000

CHG

PRES VAL?
c100 0000 ????

0

A

0

A

1

B

1

B

WRITE

c100
0011

The IR word n+1 bits shown in the following diagram are used for adjusting offset
and gain.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Word n+1

Clear bit

Set bit

Gain bit

Offset bit

Up bit

Down bit

The procedure for adjusting the analog output offset is explained below. As
shown in the following diagram, the set value is adjusted so that the analog out­put reaches the standard value (0V/1V/4mA).

10 V

0

0FA0

Offset adjustment output range

Output signal range:
–10 to 10 V

Specifying Output
Number to be Adjusted

Bits Used for Adjusting
Offset and Gain

Offset Adjustment

3-6SectionOffset and Gain Adjustment

56

The following example uses output number 1 adjustment for illustration. (The
unit number is 0.)

1, 2, 3... 1. Turn ON bit 00 (the Offset Bit) of IR word n+1. (Hold the ON status.)

CLR

00000

SHIFT

CONT

#

1

B

0

A

1

B

0

A

0

A

MONTR

10100
^OFF

PLAY

SET

10100
ON

2. Check whether the output devices are connected.

A0

A1

A2

A3

A0

A1

A2

A3

Voltage output

Current output

Output 1

Output 1

3. Monitor IR word n+8 and check the set value while the Offset Bit is ON.

CLR

00000

SHIFT

CH

*

1

B

0

A

8

MONTR

c108
0000

4. Change the set value so that the output voltage and output current are as
shown in the following table. The data can be set within the indicated
ranges.

Output signal range Output voltage/current Output range

0 to 10 V 0 V

FF38 to 00C8

–10 to 10 V 0 V

1 to 5 V 1 V

4 to 20 mA 4 mA

3-6SectionOffset and Gain Adjustment

57

Change the set value, using the Up Bit (bit 03 of word n+1) and the Down Bit
(bit 02 of word n+1).

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Up Bit Down Bit

While the Up Bit is ON, the resolution will be
increased by 1 every 0.5 seconds. After it has
been ON for 3 seconds, the resolution will be
increased by 1 every 0.1 seconds.

While the Down Bit is ON, the resolution will be
decreased by 1 every 0.5 seconds. After it has
been ON for 3 seconds, the resolution will be
decreased by 1 every 0.1 seconds.

Word n+1

SHIFT

CONT

#

1

B

0

A

1

B

0

A

2

C

MONTR

10102 c108
^OFF 0000

The bit will remain ON until the output becomes an appropriate value, at
which time, it will turn OFF.

PLAY

SET

10102 c108
ON FFFF

REC

RESET

10102 c108
OFF FFFF

5. Check the 0V/1V/4mA output, and then turn bit 04 (the Set Bit) of IR word
n+1 OFF, ON, and then OFF again.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

4

E

MONTR

10104 10102 c108
^OFF ^ OFF FFFF

PLAY

SET

10104 10102 c108
ON ^ OFF FFFF

REC

RESET

10104 10102 c108
OFF ^ OFF FFFF

While the Offset Bit is ON, the offset value will be saved to the Unit’s EE­PROM when the Set Bit turns ON.

!

3-6SectionOffset and Gain Adjustment

58

6. To finish the offset adjustment, turn OFF bit 00 (the Offset Bit) of IR word
n+1.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

0

A

MONTR

10100 10104
^ ON ^OFF

REC

RESET

10100 10104
OFF ^OFF

Caution Do not turn OFF the power supply or restart the Unit while the Set Bit is ON (data

is being written to the EEPROM). Otherwise, illegal data may be written in the
Unit’s EEPROM and “Special I/O Unit Errors” may occur when the power supply
is turned ON or when the Unit is restarted, causing a malfunction.
When making adjustments, be sure to perform both the offset adjustment and
gain adjustment.

Note The EEPROM can be overwritten 50,000 times.

The procedure for adjusting the analog output gain is explained below. As shown
in the following diagram, the set value is adjusted so that the analog output is
maximized (to 10V/5V/20mA).

10 V

0

0FA0

Output signal range:
0 to 10 V

Gain adjustment output range

The following example uses output number 1 adjustment for illustration. (The
unit number is 0.)

1, 2, 3... 1. Turn ON bit 01 (the Gain Bit) of IR word n+1. (Hold the ON status.)

CLR

00000

SHIFT

CONT

#

1

B

0

A

1

B

0

A

1

B

MONTR

10101
^OFF

PLAY

SET

10101
ON

Gain Adjustment

3-6SectionOffset and Gain Adjustment

59

2. Check whether the output devices are connected.

A0

A1

A2

A3

A0

A1

A2

A3

Voltage output

Current output

Output 1

Output 1

3. Monitor IR word n+8 and check the set value while the Gain Bit is ON.

CLR

00000

SHIFT

CH

*

1

B

0

A

8

MONTR

c108
0FA0

4. Change the set value so that the output voltage and output current are as
shown in the following table. The data can be set within the indicated
ranges.

Output signal range Output voltage/current Output range

0 to 10 V 10 V 0ED8 to 1068

–10 to 10 V 10 V 0708 to 0898

1 to 5 V 5 V 0ED8 to 1068

4 to 20 mA 20 mA 0ED8 to 1068

Change the set value, using the Up Bit (bit 03 of word n+1) and the Down Bit
(bit 02 of word n+1).

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Up Bit Down Bit

While the Up Bit is ON, the resolution will be
increased by 1 every 0.5 seconds. After it has
been ON for 3 seconds, the resolution will be
increased by 1 every 0.1 seconds.

While the Down Bit is ON, the resolution will be
decreased by 1 every 0.5 seconds. After it has
been ON for 3 seconds, the resolution will be
decreased by 1 every 0.1 seconds.

Word n+1

!

3-6SectionOffset and Gain Adjustment

60

SHIFT

CONT

#

1

B

0

A

1

B

0

A

2

C

MONTR

10102 c108
^OFF 0FA0

The bit will remain ON until the output becomes an appropriate value, at
which time, it will turn OFF.

PLAY

SET

10102 c108
ON 0F9F

REC

RESET

10102 c108
OFF 0F9F

5. Check the 10V/5V/20mA output, and then turn bit 04 (the Set Bit) of IR word
n+1 OFF, ON, and then OFF again.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

4

E

MONTR

10104 10102 c108
^OFF ^ OFF 0F9F

PLAY

SET

10104 10102 c108
ON ^ OFF 0F9F

REC

RESET

10104 10102 c108
OFF ^ OFF 0F9F

While the Gain Bit is ON, the gain value will be saved to the Unit’s EEPROM
when the Set Bit turns ON.

6. To finish the gain adjustment, turn OFF bit 01 (the Gain Bit) of IR word n+1.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

1

B

MONTR

10101 10104
^OFF ^OFF

REC

RESET

10101 10104
OFF ^OFF

Caution Do not turn OFF the power supply or restart the Unit while the Set Bit is ON (data

is being written to the EEPROM). Otherwise, illegal data may be written in the
Unit’s EEPROM and “Special I/O Unit Errors” may occur when the power supply
is turned ON or when the Unit is restarted, causing a malfunction.
When making adjustments, be sure to perform both the offset adjustment and
gain adjustment.

Note The EEPROM can be overwritten 50,000 times.

!

3-6SectionOffset and Gain Adjustment

61

Follow the procedure outlined below to return the offset and gain adjusted val­ues to their default settings.

The following example uses output number 1 adjustment for illustration. (The
unit number is 0.)

1, 2, 3... 1. Turn ON bit 05 (the Clear Bit) of IR word n+1. (Hold the ON status.) Regard-

less of the set value, 0000 will be monitored in IR word n+8.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

5

F

MONTR

10105
^OFF

PLAY

SET

10105
ON

2. Turn bit 04 of IR word n+1 ON and then OFF again.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

4

E

MONTR

10104 10105
^OFF ^ ON

PLAY

SET

10104 10105
ON ^ ON

REC

RESET

10104 10105
OFF ^ ON

While the Clear Bit is ON, the default offset and gain values will be saved to
the Unit’s EEPROM when the Set Bit turns ON.

3. To finish the clearing of adjusted values, turn OFF bit 05 (the Clear Bit) of IR
word n+1.

SHIFT

CONT

#

1

B

0

A

1

B

0

A

5

F

MONTR

10105 10104
^ ON ^OFF

REC

RESET

10105 10104
OFF ^OFF

Caution Do not turn OFF the power supply or restart the Unit while the Set Bit is ON (data

is being written to the EEPROM). Otherwise, illegal data may be written in the
Unit’s EEPROM and “Special I/O Unit Errors” may occur when the power supply
is turned ON or when the Unit is restarted, causing a malfunction.

Note The EEPROM can be overwritten 50,000 times.

Clearing Offset and Gain
Adjusted Values

3-7SectionError Processing

62

3-7 Error Processing

3-7-1 Troubleshooting Procedure

Use the following procedure for troubleshooting Analog Input Unit errors.

1, 2, 3... 1. Error occurs.

2. Is the ERROR indicator lit?
Yes: Error detected by Analog Output Unit

(Refer to 3-7-2 Errors Detected by Analog Output Unit.)

No: Go to the next step.

3. Is the RUN indicator lit?
Yes: Error detected by CPU Unit

(Refer to 3-7-3 Errors Detected by CPU Unit.)
Check whether the operation mode switch on the back of the Analog
Output Unit is set correctly.

No: Refer to 3-7-5 Troubleshooting.

If both the ERROR and RUN indicators are lit, check whether the operation
mode switch on the back of the Analog Output Unit is set correctly.

3-7-2 Errors Detected by Analog Output Unit

When an error occurs at the Analog Output Unit, the ERROR indicator on the
front panel of the Unit lights and the error code is stored in bits 08 to 15 of IR word
n+9.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Word n+9

Error code

Disconnection detection flags
for output numbers 1 to 8.

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Error

code

Error contents Countermeasure

8 1 In adjustment mode, adjustment

cannot be performed because the
specified input number is not set
for use or because the wrong
input number is specified.

Check whether the word n input
number to be adjusted is set from
11 to 18.

Check whether the input number
to be adjusted is set for use by
means of the DM setting.

8 3 The output setting range has been

exceeded.

Correct the set value.

8 8 An EEPROM writing error has

occurred while in adjustment
mode.

Turn the Set Bit OFF, ON, and
OFF again.

If the error persists even after the
reset, replace the Analog Output
Unit.

F 2 The wrong output status for when

conversion is stopped has been
specified.

Specify a number from 0000 to

0002.

Note Errors indicated with 8j codes are automatically reset when proper counter-

measures are taken. The errors indicated with Fj codes are cleared when the
power is turned on after making the correct settings and when the Special I/O
Unit Restart Bit is turned OFF, ON, and OFF again.

3-7SectionError Processing

63

3-7-3 Errors Detected by CPU Unit

When the CPU Unit detects an error at a Special I/O Unit, it outputs to the CPU’s
SR and AR areas as shown below.

Special I/O Unit Error Flag

Bit Error Contents CPU Unit status LED indicators

25415

I/O UNIT OVER The same unit number

has been set for more
than one Special I/O Unit.

CPU Unit operation is
stopped.

RUN: Not lit
ERROR:Not lit

SPECIAL I/O UNIT
ERROR

Error occurred in I/O
refresh between Special
I/O Unit and CPU Unit.

Operation is stopped only
for faulty Unit.

RUN: Not lit
ERROR:Not lit

Special I/O Unit Error Flags

Bits

Functions

C200HX/HG/HE

C200H/HS

28200 AR 0000 Unit #0 Error Flag

Turns ON for any unit

28201 AR 0001 Unit #1 Error Flag

y

number when I/O

28202 AR 0002 Unit #2 Error Flag

UNIT OVER

or

SPECIAL I/O UNIT

28203 AR 0003 Unit #3 Error Flag

SPECIAL I/O UNIT

ERROR occurs.

28204 AR 0004 Unit #4 Error Flag

28205 AR 0005 Unit #5 Error Flag

28206 AR 0006 Unit #6 Error Flag

28207 AR 0007 Unit #7 Error Flag

28208 AR 0008 Unit #8 Error Flag

28209 AR 0009 Unit #9 Error Flag

28210 (See note.) --- Unit #A Error Flag

28211 (See note.) --- Unit #B Error Flag

28212 (See note.) --- Unit #C Error Flag

28213 (See note.) --- Unit #D Error Flag

28214 (See note.) --- Unit #E Error Flag

28215 (See note.) --- Unit #F Error Flag

Note SR bits 28210 to 28215 cannot be used with C200HE, C200HX/HG-

CPU3j-E/4j-E PCs.

3-7-4 Restarting Special I/O Units

There are two ways to restart Special I/O Unit operation after having changed
DM contents or having corrected the cause of an error. The first way is to power
up the PC again, and the second way is to turn the Special I/O Unit Restart Bit
ON and then OFF again.

3-7SectionError Processing

64

Special I/O Unit Restart Bits

Bits

Functions

C200HX/HG/HE

C200H/HS

28100 AR 0100 Unit #0 Restart Bit

Turning the Restart Bit

28101 AR 0101 Unit #1 Restart Bit

g

for any Unit ON and

28102 AR 0102 Unit #2 Restart Bit

then

OFF

again

restarts that Unit.

28103 AR 0103 Unit #3 Restart Bit

restarts that Unit

.

28104 AR 0104 Unit #4 Restart Bit

28105 AR 0105 Unit #5 Restart Bit

28106 AR 0106 Unit #6 Restart Bit

28107 AR 0107 Unit #7 Restart Bit

28108 AR 0108 Unit #8 Restart Bit

28109 AR 0109 Unit #9 Restart Bit

28110 (See note.) --- Unit #A Restart Bit

28111 (See note.) --- Unit #B Restart Bit

28112 (See note.) --- Unit #C Restart Bit

28113 (See note.) --- Unit #D Restart Bit

28114 (See note.) --- Unit #E Restart Bit

28115 (See note.) --- Unit #F Restart Bit

Note SR bits 28110 to 28115 cannot be used wit C200HE, C200HX/HG-

CPU3j-E/4j-E PCs.

If the error is not cleared even after turning the Special I/O Unit Restart Bit ON
and then OFF again, then replace the Unit.

3-7-5 Troubleshooting

The following tables explain the probable causes of troubles that may occur, and
the countermeasures for dealing with them.

Probable Cause Countermeasure Page

The output is not set for being
used.

Set the output for being used. 50

The output hold function is in
operation.

Turn ON the Output Conversion
Enable Bit.

52

The conversion value is set outside
of the permissible range.

Set the data within the range. 39

Probable Cause Countermeasure Page

The output signal range setting is
wrong.

Correct the output signal range
setting.

50

The I/O specifications of the output
device do not match those of the
Analog Output Unit (e.g., input
signal range, input impedance).

Change the output device. 38

The offset or gain is not adjusted. Adjust the offset or gain. 54

Probable Cause Countermeasure Page

The output signals are being
affected by external noise.

Try changing the shielded cable
connection (e.g., the grounding at
the output device).

44

Analog Output Does Not
Change

Output Does Not Change
as Intended

Outputs are Inconsistent

65

SECTION 4

C200H-MAD01 Analog I/O Unit

This section provides the information required to install and operate a C200H-MAD01 Analog I/O Unit.

4-1 Specifications 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1-1 General Specifications 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1-2 Performance Specifications 66. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1-3 Input Specifications 67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1-4 Output Specifications 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2 Nomenclature and Functions 70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-1 Indicators 70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-2 Unit Number Switch 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-3 Operation Mode Switch 71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3 Wiring 72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-1 Terminal Arrangement 72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-2 Internal Circuitry 72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-3 Line Breakage while Using Voltage Input 73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-4 I/O Wiring Example 74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-5 I/O Wiring Considerations 75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4 IR and DM Areas 76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4-1 IR Area Allocation and Contents 76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4-2 DM Allocation and Contents 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5 Analog Input Functions 81. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5-1 Setting Inputs and Signal Ranges 81. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5-2 Reading Conversion Values 82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5-3 Mean Value Processing 82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5-4 Peak Value Function 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5-5 Input Disconnection Detection Function 85. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-6 Analog Output Functions 86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-6-1 Setting Outputs and Signal Ranges 86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-6-2 Output Hold Function 87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-6-3 Writing Set Values 87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-6-4 Starting and Stopping Conversion 88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-6-5 Output Setting Errors 89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-7 Ratio Conversion Function 89. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-8 Offset and Gain Adjustment 92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-8-1 Adjustment Mode Operational Flow 92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-8-2 Input Offset and Gain Adjustment Procedures 93. . . . . . . . . . . . . . . . . . . . . . . . . . .

4-8-3 Output Offset and Gain Adjustment Procedures 98. . . . . . . . . . . . . . . . . . . . . . . . . .

4-9 Error Processing 105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-9-1 Troubleshooting Procedure 105. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-9-2 Errors Detected by Analog I/O Unit 106. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-9-3 Errors Detected by CPU Unit 107. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-9-4 Restarting Special I/O Units 108. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-9-5 Troubleshooting 108. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1SectionSpecifications

66

4-1 Specifications

4-1-1 General Specifications

All general specifications of the C200H-MAD01 Analog I/O Unit conform to
those of the C200H, C200HS, and C200HX/HG/HE Series.

4-1-2 Performance Specifications

Item

C200H-MAD01

Voltage I/O Current I/O

Input

Number of analog inputs 2

p

Input signal range (note1)0 to 10 V

–10 to 10 V
1 to 5 V

4 to 20 mA

Max. input signal (note 2) ±15 V ±30 mA

Input impedance 1 MΩ min. 250 Ω (rated value)

Resolution 1/4000 (full scale)

Converted output data 16-bit binary data
Accuracy

23°±2°C

±0.2% of full scale ±0.4% of full scale

(note 3)

0° to
55

°C

±0.4% of full scale ±0.6% of full scale

Output

Number of analog outputs 2

p

Output signal range (note1)0 to 10 V

–10 to 10 V
1 to 5 V

4 to 20 mA

Output impedance 0.5 Ω max. ---

Max. output current 12 mA ---

Max. load resistance --- 600 Ω max. (note 5)

Resolution 1/4000 (full scale)

Set data 16-bit binary data
Accuracy

23°±2°C

±0.3% of full scale ±0.5% of full scale

(note 3)

0° to
55

°C

±0.5% of full scale ±0.8% of full scale

Com-

Conversion time (note 4) 1.0 ms/point max.

mon

Isolation Between I/O terminals and PC: photocoupler

(No isolation between individual input and
output signals.)

External connectors 28-point terminal block (M3 screws)

Power consumption 100 mA max. at 5 VDC

200 mA max. at 26 VDC

Dimensions 34.5 x 130 x 128 (W x H x D) mm (refer to

Appendix A Dimensions)

Weight 450 g max.

Note 1. The I/O signal range can be set individually for each input.

2. Operate within the ranges listed above. Operation in ranges beyond the
maximum input signals will damage the Unit.

3. The accuracy is given for full scale. For example, an accuracy of ±0.2%
means a maximum error of ±8 (BCD).
The default setting is adjusted with the voltage input for the analog input and
with the current output for the analog output. When using the current input
and voltage output, perform the offset and gain adjustment as required.

4-1SectionSpecifications

67

4. A/D conversion time is the time it takes for an analog signal to be stored in
memory as converted data after it has been input. It takes at least one cycle
before the converted data is read by the CPU Unit. D/A conversion time is
the time required for converting and outputting the PC data. It takes at least
one cycle for the data stored in the PC to be read by the Analog Output Unit.
By executing an I/O refresh, the conversion time may be extended by an
additional 0.3 ms approximately.

5. The default setting is for current output (load resistance: 250 Ω). When
using voltage output, or when using current output with a load resistance
other than 250 Ω, perform the offset and gain adjustment as required.

4-1-3 Input Specifications

Range: 1 to 5 V (4 to 20 mA)

1 V (4 mA)

0.8 V (3.2 mA)

5 V (20 mA)

5.2 V (20.8 mA)

Resolution: 4,000

Conversion value (16-bit binary data)

1068

0FA0

0000

FF38

Analog input signal

Range: 0 to 10 V

0 V +10 V

–0.5 V +10.5 V

1068

0FA0

0000

FF38

Resolution: 4,000

Conversion value (16-bit binary data)

Analog input signal

4-1SectionSpecifications

68

Range: –10 to 10 V

0 V +10 V

+11 V

0898

07D0

F830

F768

0000

–10 V

–11 V

Resolution: 4,000

Conversion value (16-bit binary data)

Analog input signal

4-1-4 Output Specifications

Range: 1 to 5 V (4 to 20 mA)

5.2 V (20.8mA)
5 V (20mA)

1 V (4mA)

0.8 V (3.2mA)

0000

FF38

OFA0

1068

Set value (16-bit binary data)

Analog output signal

Resolution: 4,000

4-1SectionSpecifications

69

Range: 0 to 10 V

0000

FF38

OFA0

1068

+10.5 V

+10 V

0 V

–0.5 V

Set value (16-bit binary data)

Analog output signal

Resolution: 4,000

Range: –10 to 10 V

0000

F830

F768

07D0

0898

0 V

–10 V
–11 V

+11 V
+10 V

Set value (16-bit binary data)

Analog output signal

Resolution: 4,000

4-2SectionNomenclature and Functions

70

4-2 Nomenclature and Functions

Model label

Unit number setting switch

Terminal block mounting
screw (black M3)

External input terminal
block (M3)

Indicators

Operation mode switch

Backplane connector

Front Back

The terminal block is attached by a connector. It can be removed by loosening
the black mounting screw. When removing the terminal block after wiring, re­move the wire connected to the top terminal of the right column.

Check to be sure that the black terminal block mounting screw is securely tight­ened to a torque of 0.5 N S m.

Fasten the mounting screw.

4-2-1 Indicators

The RUN and ERROR indicators show the operating status of the Unit. The fol­lowing table shows the meanings of the indicators.

LED Indicator Operating status

RUN (green)

Lit Operating in normal mode.

(g )

Flashes Operating in adjustment mode.

Not lit Abnormal (Unit operation stopped)

ERROR (red)

Lit Error occurred. The error codes are stored in bits

08 to 15 of word n+9.

Not lit Other than the above.

!

!

4-2SectionNomenclature and Functions

71

4-2-2 Unit Number Switch

The CPU Unit and Analog I/O Unit exchange data via the IR area and the DM
area. The IR and DM word addresses that each Analog Input Unit occupies are
set by the unit number switch on the front panel of the Unit.

Always turn off the power before setting the unit number. Use a flat-blade screw­driver, being careful not to damage the slot in the screw. Be sure not to leave the
switch midway between settings.

Switch setting Unit number IR words DM words

0 Unit #0 IR 100 to 109 DM 1000 to 1099

1 Unit #1 IR 110 to 119 DM 1100 to 1199

2 Unit #2 IR 120 to 129 DM 1200 to 1299

3 Unit #3 IR 130 to 139 DM 1300 to 1399

4 Unit #4 IR 140 to 149 DM 1400 to 1499

5 Unit #5 IR 150 to 159 DM 1500 to 1599

6 Unit #6 IR 160 to 169 DM 1600 to 1699

7 Unit #7 IR 170 to 179 DM 1700 to 1799

8 Unit #8 IR 180 to 189 DM 1800 to 1899

9 Unit #9 IR 190 to 199 DM 1900 to 1999

A Unit #A IR 400 to 409 DM 2000 to 2099

B Unit #B IR 410 to 419 DM 2100 to 2199

C Unit #C IR 420 to 429 DM 2200 to 2299

D Unit #D IR 430 to 439 DM 2300 to 2399

E Unit #E IR 440 to 449 DM 2400 to 2499

F Unit #F IR 450 to 459 DM 2500 to 2599

Note 1. Switches A to F can be set for the C200HX/HG-CPU5j-E/6j-E. Setting

numbers A to F for C200H, C200HS, C200HE, or C200HX/HG­CPU3j-E/4j-E PCs will cause an I/O UNIT OVER error and the Unit will
not operate.

2. If two or more Special I/O Units are assigned the same unit number, an I/O
UNIT OVER error will be generated and the PC will not operate.

4-2-3 Operation Mode Switch

The operation mode switch on the back of the Unit is used to set the operation
mode to either normal mode or adjustment mode (for adjusting offset and gain).

Pin number

Mode

1 2 3 4

OFF OFF OFF OFF Normal mode

ON OFF OFF OFF Adjustment mode

Caution Do not set the pins to any combination other than those shown in the above

table.
Be sure to set pins 2, 3, and 4 to OFF.

Caution Be sure to turn off the power to the PC before mounting or removing any Units.

4-3SectionWiring

72

4-3 Wiring

4-3-1 Terminal Arrangement

The signal names corresponding to the connecting terminals are as shown in the
following diagram.

Voltage output 2 (+) B0

Voltage/current output 2 (–) B1

Current output 2 (+) B2

NC B3

NC B4

NC B5

Current input 2 B6

Voltage input 2 (+) B7

Voltage input 2 (–) B8

COM (analog 0 V) B9

NC B10

NC B11

NC B12

NC B13

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

Voltage output 1 (+)

Voltage/current output 1 (–)

Current output 1 (+)

NC

NC

NC

Current input 1

Voltage input 1 (+)

Voltage input 1 (–)

COM (analog 0 V)

NC

NC

NC

NC

Note 1. The analog I/O numbers that can be used are set in the Data Memory (DM).

2. The I/O signal ranges for individual inputs and outputs are set in the Data
Memory (DM). They can be set in units of analog I/O numbers.

3. The COM terminal (A9, B9) is connected to the 0-V analog circuit in the Unit.
Connecting shielded input lines can improve noise resistance.

4-3-2 Internal Circuitry

The following diagrams show the internal circuitry of the analog I/O section.

Input Circuitry

250 Ω

1 MΩ

15 kΩ 15 kΩ

15 kΩ 15 kΩ

AG (common to all inputs)

Current
input (+)

Voltage
input (+)

Voltage
input (–)

COM
(analog
0 V)

Input circuit
and
conversion
circuit

1 MΩ

4-3SectionWiring

73

Output Circuitry (Voltage Output)

Output
switch and
conversion
circuit

AMP

Voltage
output (+)

Voltage
output (–)

AG (common to all outputs)

Output Circuitry (Current Output)

Output
switch and
conversion
circuit

AMP

Current
output (+)

Current
output (–)

Internal power supply

AG (common to all outputs)

4-3-3 Line Breakage while Using Voltage Input

24 VDC

Con­nected
device
1

Con­nected
device
2

Note If the power supply is shared by two channels as shown above, while the con-

nected device 2 outputs 5 V, approximately 1.6 V (one-third of the output volt­age) is generated in input 1.

4-3SectionWiring

74

If a line breakage occurs while using the voltage input, either separate the power
supply from the connected device or use an isolator for each input to avoid the
following problem.

If the line breakage occurs at point A or B as shown in the preceding diagram
while power is shared by the connected devices, a short-circuit line will be
formed as indicated by the dotted line in the above illustration, thus generating a
voltage of approximately one-third to two-thirds of the voltage output from the
connected device. If this kind of voltage is generated while using the Unit at 1 to
5 V, the line breakage may not be detected. If the line breakage occurs at point
C, it will not be detected because the negative (–) side is common.

In case of the current input, this kind of problem will not occur even if the power
supply is shared by the connected devices.

4-3-4 I/O Wiring Example

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

B0

B1

B2

B3

B4

B5

B6

B7

B8

B9

B10

B11

B12

B13

Output 2
(Voltage output)

(I/O device)

Input 2
(Voltage input)

Output 1
(Current output)

(I/O device)

Input 1
(Current input)

+

–

+

–

Note 1. When using current inputs, the voltage input terminals (V+) and current in-

put terminals (I+) must be individually short-circuited as shown in the above
diagram.

2. Do not simultaneously connect voltage output terminals and current output
terminals with the same output numbers. Voltage outputs and current out­puts cannot be used at the same time with the same output numbers.

3. For inputs that are not used, either set to “0: Do not use” in the input number
settings (refer to 4-5-1 Setting Inputs and Signal Ranges) or short-circuit the
voltage input terminals (V+) and (V–).

4-3SectionWiring

75

4. Crimp-type terminals must be used for terminal connections, and the
screws must be tightened securely. Use M3 screws and tighten them to a
torque of 0.5 N S m.

6.0 mm max.

6.0 mm max.

M3 screw

Fork Type

Round Type

Connecting shielded cable to the Unit’s COM terminals (A9, B9) can improve
noise resistance.

To minimize output wiring noise, ground the output signal line to the output de­vice.

4-3-5 I/O Wiring Considerations

When wiring inputs, apply the following points to avoid noise interference and
optimize Analog I/O Unit performance.

• Use shielded twisted-pair cable for external connections.

• Route I/O cables separately from the AC cable, and do not run the Unit’s

cables near a main circuit cable, high voltage cable, or a non-PC load cable.

• If there is noise interference from power lines (if, for example, the power supply
is shared with electrical welding devices or electrical discharge machines, or if
there is a high-frequency generation source nearby) install a noise filter at the
power supply input area.

• When the power supply to the PC is turned on or off, momentary voltage or
current may be output from the output terminal.

4-4SectionIR and DM Areas

76

4-4 IR and DM Areas

4-4-1 IR Area Allocation and Contents

IR Area Allocation

IR n+ 5
to
IR n +9

IR n
to
IR n+4

IR 130 to 139

IR 140 to 149

IR 150 to 159

IR 100 to 109

IR 110 to 119

IR 120 to 129

IR 190 to 199

IR 160 to 169

IR 170 to 179

IR 180 to 189

SYSMAC C200H/C200HS/C200HX/HG/HE PC C200H-MAD01 Analog I/O Unit

IN refresh

(I/O refresh data area)

Unit #0

Unit #1

Unit #2

Unit #3

Unit #4

Unit #5

Unit #6

Unit #7

Unit #8

Unit #9

(Work area)

At the I/O refresh by the
PC, outputs (CPU to
Unit) and inputs (Unit to
CPU) are refreshed in
order with every cycle.

OUT refresh

Words

IR 430 to 439

IR 440 to 449

IR 450 to 459

IR 400 to 409

IR 410 to 419

IR 420 to 429

Unit #A

Unit #B

Unit #C

Unit #D

Unit #E

Unit #F

Normal Mode

IR n + 8
to
IR n +9

IR n
to
IR n + 7

IN refresh

OUT refresh

Adjustment Mode

n = 100 + 10 x unit number, except
for Units #A to #F (10 to 15) where:
n = 400 + 10 x (unit number – 10)

Note 1. Switches A to F can be set for the C200HX/HG-CPU5j-E/6j-E. Setting

numbers A to F for C200H, C200HS, C200HE, or C200HX/HG­CPU3j-E/4j-E PCs will cause an I/O UNIT OVER error and the Unit will
not operate.

2. If two or more Special I/O Units are assigned the same unit number, an I/O
UNIT OVER error will be generated and the PC will not operate.

4-4SectionIR and DM Areas

77

For normal mode, set the operation mode switch on the rear panel of the Unit as
shown in the following diagram.

The allocation of IR words and bits is shown in the following table.

I/O Word

Bits

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Output
(CPU to

n Not used.

Not used. Peak hold Not used. Conversion

enable

(C U o

Unit)

Input2Input

1

Out-

put 2

Out-

put 1

n+1

Output 1 set value

16

3

16

2

16

1

16

0

n+2 Output 2 set value

n+3 Not used.

n+4 Not used.

Input

n+5

Input 1 conversion value / Loop 1 calculation result

p

(Unit to

16

3

16

2

16

1

16

0

CPU)

n+6 Input 2 conversion value / Loop 2 calculation result

n+7 Not used.

n+8 Not used.
n+9

Error code Not used. Disconnection

detection

Not used. Output set-

ting error

16

1

16

0

Input2Input

1

Out-

put 2

Out-

put 1

Note For the IR word addresses, n = 100 + 10 x unit number.

For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Set Values and Stored Values

I/O Item Contents

Input Peak value

function

0: Do not use.
1: Use peak value.

Conversion value/
Calculation result

16-bit binary data

Disconnection
detection

0: No disconnection
1: Disconnection

Output Conversion enable 0: Stop conversion output

1: Begin conversion output

Set value 16-bit binary data

Output setting error 0: No error

1: Output setting error

Common Error code Two digits, hexadecimal (00 for no error)

The disconnection detection function can be used when the input signal range is
set for 1 to 5 V (4 to 20 mA).

Input signal range Voltage/current

1 to 5 V 0.3 V max.

4 to 20 mA 1.2 mA max.

Allocation for Normal
Mode

4-4SectionIR and DM Areas

78

For adjustment mode, set the operation mode switch on the rear panel of the
Unit as shown in the following diagram. When the Unit is set for adjustment
mode, the RUN indicator on the front panel of the Unit will flash.

The allocation of IR words and bits is shown in the following table.

I/O Word

Bits

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Output

n Not used.

Inputs and outputs to be adjusted

p

(CPU to

16

1

16

0

Unit)

n+1 Not used. Not used. Clr Set Up Down Gain Off-

set
n+2 Not used.

n+3 Not used.

n+4 Not used.

n+5 Not used.

n+6 Not used.

n+7 Not used.

Input

n+8

Conversion value or set value at time of adjustment

(Unit t

o

CPU)

16

3

16

2

16

1

16

0

n+9

Error code Not used. Disconnection

detection

Not used.

16

1

16

0

Input2Input

1

Note For the IR word addresses, n = 100 + 10 x unit number.

For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Set Values and Stored Values

Item Contents

Input or output to be
adjusted

Sets input or output to be adjusted.
Leftmost digit: 1 (output) or 2 (input)
Rightmost digit: 1 or 2

Offset (Offset Bit) When ON, adjusts offset deviation.

Gain (Gain Bit) When ON, adjusts gain deviation.

Down (Down Bit) Decrements the adjustment value while ON.

Up (Up Bit) Increments the adjustment value while ON.

Set (Set Bit) Sets adjusted value and writes to EEPROM.

Clr (Clear Bit) Clears adjusted value. (Returns to default status)

Conversion value for
adjustment

The conversion value for adjustment is stored as 16
bits of binary data.

Disconnection detection 0: No disconnection

1: Disconnection

Error code Two digits, hexadecimal (00 for no error)

The disconnection detection function can be used when the input signal range is
set for 1 to 5 V (4 to 20 mA).

Input signal range Voltage/current

1 to 5 V 0.3 V max.

4 to 20 mA 1.2 mA max.

Allocation for
Adjustment Mode

4-4SectionIR and DM Areas

79

4-4-2 DM Allocation and Contents

DM Allocation

DM (m+1)

DM (m)

DM 1300 to 1399

DM 1400 to 1499

DM 1500 to 1599

DM 1000 to 1099

DM 1100 to 1199

DM 1200 to 1299

DM 1900 to 1999

DM 1600 to 1699

DM 1700 to 1799

DM 1800 to 1899

SYSMAC C200H/C200HS/C200HX/HG/HE PC C200H-MAD01 Analog I/O Unit

(Fixed data area)

Unit #0

Unit #1

Unit #2

Unit #3

Unit #4

Unit #5

Unit #6

Unit #7

Unit #8

Unit #9

(Work area)

Word

DM 2300 to 2399

DM 2400 to 2499

DM 2500 to 2599

DM 2000 to 2099

DM 2100 to 2199

DM 2200 to 2299

Unit #A

Unit #B

Unit #C

Unit #D

Unit #E

Unit #F

DM (m+2
to m+3)

DM (m+6
to m+9)

DM (m+10
to m+13)

I/O conversion
permission loop
mode setting

Input signal range

Output hold
function setting

Sets number of
samples for mean
value processing

Ratio set value,
bias value setting

Data is automatically
transferred to each unit
number when the power
is turned on, or when the
Special I/O Unit’s Re­start Bit is turned ON.

m = 1000 + 100 x unit number
(Units #A to #F = Unit numbers 10 to 15)

Note 1. Switches A to F can be set for the C200HX/HG-CPU5j-E/6j-E. Setting

numbers A to F for C200H, C200HS, C200HE, or C200HX/HG­CPU3j-E/4j-E PCs will cause an I/O UNIT OVER error and the Unit will
not operate.

2. If two or more Special I/O Units are assigned the same unit number, an I/O
UNIT OVER error will be generated and the PC will not operate.

4-4SectionIR and DM Areas

80

The following table shows the allocation of DM words and bits for both normal
and adjustment mode.

DM word

Bits

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

DM (m)

Not used. Ratio conversion use

designation

Not used. Use desig-

nation

Not used. Use desig-

nation

Loop 2 Loop 1 Input

2

Input
1

Out­put 2

Out­put 1

DM (m+1)

Not used. Input signal range set-

ting (See note 2.)

Not used. Output signal range set-

ting (See note 2.)

Input 2 Input 1 Output 2 Output 1

DM (m+2) Not used. Output 1: Output status when conversion stopped

DM (m+3) Not used. Output 2: Output status when conversion stopped

DM (m+4) Not used.

DM (m+5) Not used.

DM (m+6) Input 1: Mean value processing setting

DM (m+7) Input 2: Mean value processing setting

DM (m+8) Not used.

DM (m+9) Not used.

DM (m+10) Loop 1 (input 1 to output 1), A constant

DM (m+11) Loop 1 (input 1 to output 1), B constant

DM (m+12) Loop 2 (input 2 to output 2), A constant

DM (m+13) Loop 2 (input 2 to output 2), B constant

Set Values and Stored Values

Item Contents

Input

Use designation 0: Do not use.

1: Use.

Input signal range 00: –10 to 10 V

01: 0 to 10 V
10: 1 to 5 V/4 to 20 mA (See note.)
11: Same as for setting “10” above.

Mean value
processing setting

0000: No mean value processing
0001: Mean value processing for 2 buffers
0002: Mean value processing for 4 buffers
0003: Mean value processing for 8 buffers
0004: Mean value processing for 16 buffers

Output

Use designation 0: Do not use.

1: Use.

Output signal range 00: –10 to 10 V

01: 0 to 10 V
10: 1 to 5 V/4 to 20 mA (See note 2.)
11: Same as for setting “10” above.

Output status when
stopped

00: CLR 0 output
01: HOLD Hold output prior to stop
02: MAX Output maximum value of range

Loop

Ratio conversion use
designation

00: Do not use.
01: Use positive gradient conversion.
10: Use negative gradient conversion.
11: Same as for setting “10” above.

A constant 4 digits BCD (0 to 9999)

B constant 16-bit binary data

Note 1. For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F =

Unit numbers 10 to 15).

2. The I/O signal range of “1 to 5 V” or “4 to 20 mA” is switched according to the
input or output terminal connections.

DM Allocation Contents

4-5SectionAnalog Input Functions

81

4-5 Analog Input Functions

4-5-1 Setting Inputs and Signal Ranges

The Analog I/O Unit only converts analog inputs specified by input numbers 1
and 2. In order to specify the analog inputs to be used, turn ON from a Peripheral
Device the DM bits shown in the following diagram.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

DM (m)

Input 2

Input 1

0: Do not use
1: Use

The analog input sampling interval can be shortened by setting any unused input
numbers to 0.

Sampling interval = (1 ms) x (Number of inputs used) +(1ms) x (Number of
outputs used (see note a)) (+ (0.5ms) x (Number of loops used (see note b)))

Note a) Refer to 4-6 Analog Output Functions for output settings.

b) Only when using the ratio conversion function.

For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).

Any of four types of input signal range can be selected for each of the eight inputs
(input numbers 1 and 2). In order to specify the input signal range for each input,
set from a Peripheral Device the DM bits shown in the following diagram.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

DM (m+1)

Input 2

Input 1

00: -10 to +10 V
01: 0 to +10 V
10: 1 to 5 V / 4 to 20 mA
11: Same as 10 above.

Note 1. For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F =

Unit numbers 10 to 15).

2. The I/O signal range of “1 to 5 V” or “4 to 20 mA” is switched according to the
input terminal connections.

3. After making the DM settings from a Peripheral Device, it will be necessary
to either power up the PC again or turn ON the Special I/O Unit Restart Bit in
order to transfer the contents of the DM settings to the Special I/O Unit. For
details regarding the Special I/O Unit Restart Bit, refer to 4-9-4 Restarting
Special I/O Units.

Input Numbers

Input Signal Range

4-5SectionAnalog Input Functions

82

4-5-2 Reading Conversion Values

Analog input conversion values are stored for each input number, in IR words
n+5 and n+6.

Word Function Stored value

n+5 Input 1 conversion value

16-bit binary data

n+6 Input 2 conversion value

y

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

Use MOV(21) or XFER(70) to read conversion values in the user program.

In this example, the conversion data from only one input is read. (The unit num­ber is #0.)

MOV(21)

105

DM0001

Input condition

Conversion data in IR word
105 (input number 1) is read
to DM 0001.

In this example, the conversion data from multiple inputs is read. (The unit num­ber is #0.)

XFER(70)

#0002

105

DM0001

Input condition

Conversion data in IR words
105 and 106 (input numbers 1
and 2) is read to DM 0001
and DM 0002.

For details regarding conversion value scaling, refer to page 116, Sample Pro-
gram 5: Scaling Function.

4-5-3 Mean Value Processing

The Analog I/O Unit can compute the mean value of the conversion values of
analog inputs that have been previously sampled. Mean value processing in­volves an operational mean value in the history buffers, so it has no affect on the
data refresh cycle. (The number of history buffers that can be set to use mean
value processing is 2, 4, 8, or 16.)

Conversion data Buffer 1

Buffer 2

Buffer 3

Buffer 4

Buffer n

(Mean value
processing)

Conversion value

(Values stored in IR
words n+5 and n+6)

(Discarded)

When “n” number of history buffers are being used, the first conversion data will
be stored for all “n” number of history buffers immediately data conversion has
begun or after a disconnection is restored.

Example 1

Example 2

4-5SectionAnalog Input Functions

83

When mean value processing is used together with the peak value function, the
mean value will be held.

To specify whether or not mean value processing is to be used, and to specify the
number of history buffers for mean data processing, use a Peripheral Device to
make the settings in DM m+6 and DM m+7 as shown in the following table.

DM word Function Set value

DM (m+6) Input 1 mean value processing

0000: No mean value processing
0001: Mean value processing with 2 buffers

DM (m+7) Input 2 mean value processing

0002:M

ean value processing with 4 buffers
0003: Mean value processing with 8 buffers
0004: Mean value processing with 16 buffers

For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).

Note After making the DM settings from a Peripheral Device, it will be necessary to

either power up the PC again or turn ON the Special I/O Unit Restart Bit in order
to transfer the contents of the DM settings to the Special I/O Unit. For details re­garding the Special I/O Unit Restart Bit, refer to 4-9-4 Restarting Special I/O
Units.

The history buffer operational means are calculated as shown below. (In this ex­ample there are four buffers.)

1, 2, 3... 1. With the first cycle, the data is stored with Data 1 being in all the history buff-

ers.

(Mean value
processing)

Conversion value

Data 1

Data 1

Data 1

Data 1

Mean value = (Data 1 + Data 1 + Data 1 + Data 1) B 4

2. With the second cycle, the data is stored with Data 2 being in the first history
buffer.

(Mean value
processing)

Conversion value

Data 2

Data 1

Data 1

Data 1

Mean value = (Data 2 + Data 1 + Data 1 + Data 1) B 4

3. With the third cycle, the data is stored with Data 3 being in the first history
buffer.

(Mean value
processing)

Conversion value

Data 3

Data 2

Data 1

Data 1

Mean value = (Data 3 + Data 2 + Data 1 + Data 1) B 4

4-5SectionAnalog Input Functions

84

4. With the fourth cycle, the Data 4 data is stored in the first history buffer.

(Mean value
processing)

Conversion value

Data 4

Data 3

Data 2

Data 1

Mean value = (Data 4 + Data 3 + Data 2 + Data 1) B 4

5. With the fifth cycle, the data is stored with Data 5 being in the first history
buffer.

(Mean value
processing)

Conversion value

Data 5

Data 4

Data 3

Data 2

Mean value = (Data 5 + Data 4 + Data 3 + Data 2) B 4

When a disconnection is restored, the mean value processing function begins
again from step 1.

4-5-4 Peak Value Function

The peak value function holds the maximum digital conversion value for every
input (including mean value processing). This function can be used with analog
input. The following diagram shows how digital conversion values are affected
when the peak value function is used.

Peak value hold

Digital conversion value

t (Time)

The peak value function can be set individually for each input number by turning
on the respective bits (04 and 05) in IR word n.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Input 2

Input 1

Word n

The peak hold function will be in effect for the
above input numbers while their respective
bits are ON. The conversion values will be
reset when the bits are turned OFF.

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

4-5SectionAnalog Input Functions

85

In the following example, the peak value function is in effect for input number 1,
and the unit number is 0.

10004

Input condition

The maximum
conversion
data value is
held for input
number 1.

When mean value processing is used together with the peak value function, the
mean value will be held.

As long as the peak value function is in effect, the peak value will be held even in
the event of a disconnection.

4-5-5 Input Disconnection Detection Function

When an input signal range of 1 to 5 V (4 to 20 mA) is used, input circuit discon­nections can be detected. The detection conditions for each of the input signal
ranges are shown in the following table.

Range Current/voltage

1 to 5 V 0.3 V max.

4 to 20 mA 1.2 mA max.

The input disconnection detection signals for each input number are stored in
bits 04 and 05 of IR word n+9. Specify these bits as execution conditions in order
to use disconnection detection in the user’s program.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Input 2

Input 1

Word n+9

The respective bit turns ON when a
disconnection is detected for a given
input. When the disconnection is
restored, the bit turns OFF.

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

The conversion value during a disconnection will be 0000.

Disconnection detection is performed on the input voltage/current data that has
been converted into digital values. Therefore, detected values may be different
from those shown in the above table due to offset and gain adjustments, etc.

In the following example, the conversion value is read only if there is no discon­nection at analog input number 1. (The unit number is 0.)

MOV (21)

105

DM0001

10904

The conver­sion value in
IR word 105
(input number

1) is read to
DM 00001.

4-6SectionAnalog Output Functions

86

4-6 Analog Output Functions

4-6-1 Setting Outputs and Signal Ranges

The Analog Output Units only convert analog outputs specified by output num­bers 1 and 2. In order to specify the analog outputs to be used, use a Peripheral
Device to turn ON the DM bits shown in the following diagram.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

DM (m)

Output 2

Output 1

0: Do not use
1: Use

The analog output conversion cycle can be shortened by setting any unused
output numbers to 0.

Conversion cycle = (1 ms) x (Number of outputs used) + (1ms) x (Number of
outputs used (see note))

Note Refer to 4-5 Analog Input Functions for input settings.

For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).

Any of four types of output signal range can be selected for each of the two out­puts (output numbers 1 and 2). In order to specify the output signal range for
each output, use a Peripheral Device to set the DM bits shown in the following
diagram.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

DM (m + 1)

Output 2

Output 1

00: -10 to +10 V
01: 0 to +10 V
10: 1 to 5 V / 4 to 20 mA
11: Same as 10 above.

Note 1. For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F =

Unit numbers 10 to 15).

2. The I/O signal range of “1 to 5 V” or “4 to 20 mA” is switched according to the
input terminal connections.

3. After making the DM settings from a Peripheral Device, it will be necessary
to either power up the PC again or turn ON the Special I/O Unit Restart Bit in
order to transfer the contents of the DM settings to the Special I/O Unit. For
details regarding the Special I/O Unit Restart Bit, refer to 4-9-4 Restarting
Special I/O Units.

Output Numbers

Output Signal Range

4-6SectionAnalog Output Functions

87

4-6-2 Output Hold Function

The Analog I/O Unit stops conversion under the following circumstances, and
output the value set by the output hold function.

1, 2, 3... 1. When the Conversion Enable Bit is OFF. (Refer to 4-4-1 IR Area Allocation

and Contents and 4-6-4 Starting and Stopping Conversion.)

2. In adjustment mode, when something other than the output number is out­put during adjustment. (Refer to 4-8-3 Output Offset and Gain Adjustment
Procedures.)

3. When there is an output setting error. (Refer to 4-6-5 Output Setting Errors
and 4-9-1 Troubleshooting Procedures.)

4. When a fatal error occurs at the PC. (Refer to the C200HX/HG/HE Program-
ming Manual.)

CLR, HOLD, or MAX can be selected for the output status when conversion is
stopped.

Output signal

range

CLR HOLD MAX

0 to 10 V –0.5 V (Min.–5%

of full scale)

Voltage that was output
just prior to stop.

10.5 V (Max.+5%
of full scale)

–10 to 10 V 0.0 V Voltage that was output

just prior to stop.

11.0 V (Max.+5%
of full scale)

1 to 5 V 0.8 V (Min.–5% of

full scale)

Voltage that was output
just prior to stop.

5.2 V (Max.+5% of
full scale)

4 to 20 mA 3.2 mA (Min.–5%

of full scale)

Current that was output
just prior to stop.

20.8 mA
(Max.+5% of full
scale)

In order to specify the the output hold function, use a Peripheral Device to set the
DM words shown in the following table.

DM word Function Set value

DM (m+2) Output 1: Output status when stopped

xx00: CLR

0 output

xx01: HOLD

Hold output value
prior to stop

DM (m+3) Output 2: Output status when stopped

pp

xx02: MAX

Output maximum
value of range

Set any value in the
leftmost bytes (xx).

For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).

Note After making the DM settings from a Peripheral Device, it will be necessary to

either power up the PC again or turn ON the Special I/O Unit Restart Bit in order
to transfer the contents of the DM settings to the Special I/O Unit. For details re­garding the Special I/O Unit Restart Bit, refer to 4-9-4 Restarting Special I/O
Units.

4-6-3 Writing Set Values

Analog output set values are written to IR words n+1 and n+2.

Word Function Stored value

n+1 Output 1 set value

16-bit binary data

n+2 Output 2 set value

y

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

4-6SectionAnalog Output Functions

88

Use MOV(21) or XFER(70) to write values in the user program.

In this example, the set value from only one input is read. (The unit number is
#0.)

MOV (21)

DM0001

101

Input condition

The set value stored in DM 0001
is written to IR word 101 (output
number 1).

In this example, multiple set values are written. (The unit number is #0.)

XFER(70)

#0002

DM0001

101

Input condition

The set values stored in DM 0001
and DM 0002 are written to IR words
101 and 102 (outputs 1 and 2).

Note Turn ON the Conversion Enable Bit for converting set values into analog output.

4-6-4 Starting and Stopping Conversion

To begin analog output conversion, turn ON the corresponding Conversion En­able Bit (word n, bits 00 and 01) from the user’s program.

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Bit

Output 2

Output 1

Analog conversion is executed while
these bits are ON. When the bits are
turned OFF, the conversion is stopped
and the output data is held. (Refer to
4-6-2 Output Hold Function.)

Word n

For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).

The analog output when conversion is stopped will differ depending on the out­put signal range setting. (Refer to 4-6-1 Setting Outputs and Signal Ranges.)

Conversion will not begin under the following conditions even if the Conversion
Enable Bit is turned ON.

1, 2, 3... 1. In adjustment mode, when something other than the output number is out-

put during adjustment. (Refer to 3-6-1 Adjustment Mode Operational Flow.)

2. When there is an output setting error. (Refer to 4-8-3 Output Offset and Gain
Adjustment Procedures and 4-9-2 Errors Detected by Analog I/O Unit.)

3. When a fatal error occurs at the PC. (Refer to the C200HX/HG/HE Program-
ming Manual.)

In this example, conversion is begun for analog output number 1. (The unit num­ber is #0.)

10000

Input condition

Conversion
begins for
output
number 1.

Example 1

Example 2