Omron SYSMAC C2000H Manuale utente

Cat.No. W121-E1-1

Analog I/O Units

SYSMAC

C1000H/C2000H

OPERATION GUIDE



TABLE OF CONTENTS

SECTION 1

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

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

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

1--3 Example Configurations 3.................................................

1--4 Allocated Words 3........................................................

SECTION 2

Components and Switch Settings 5................

2--1 AD101 Analog Input Modules 6............................................

2--2 DA101 Analog Output Modules 9...........................................

SECTION 3

Installation 11.....................................

3--1 AD001 through AD005 Analog Input Modules 12..............................

3--2 AD006 and AD007 Analog Input Modules 15..................................

3--3 AD101 Analog Input Modules 18............................................

3--4 DA001 through DA005 Analog Output Modules 21.............................

3--5 DA101 Analog Output Modules 24...........................................

SECTION 4

Operation 27......................................

4--1 AD001 through AD005 Analog Input Modules 28..............................

4--2 AD006 and AD007 Analog Input Modules 30..................................

4--3 AD101 Analog Input Modules 31............................................

4--4 DA001 through DA005 Analog Output Modules 40.............................

4--5 DA101 Analog Output Modules 43...........................................

SECTION 5

Programming Considerations 47....................

5--1 AD001 through AD005 Analog Input Modules 48..............................

5--2 AD006 and AD007 Analog Input Modules 50..................................

5--3 AD101 Analog Input Modules 52............................................

5--4 DA001 through DA005 Analog Output Modules 69.............................

5--5 DA101 Analog Output Modules 71...........................................

Appendix A -- Standard Models 73..................

Appendix B -- Specifications 75.....................

Index 81...........................................

Revision History 83................................



About this Manual:

This manual describes the installation and operation of Analog Input Modules

and Analog Output Modules for the C120, C500, C1000H, and C2000H SYS-

MAC C-series PLCs. These Modules are classified as Special I/O Modules

and include the following:

Analog Input Modules

The Analog Input Modules convert analog inputs to digital (binary) form. The

type and range of input as well as the digital format depend on the model.

Some models provide additional features such as peak values, means, or

scaling.

PLC Applicable models

C120 3G2A6-AD001

3G2A6-AD002

3G2A6-AD003

3G2A6-AD004

3G2A6-AD005

3G2A6-AD006

3G2A6-AD007

C500

C1000H

C2000H

C500-AD101

3G2A5-AD001

3G2A5-AD002

3G2A5-AD003

3G2A5-AD004

3G2A5-AD005

3G2A5-AD006

3G2A5-AD007

Analog Output Modules

Analog Output Modules convert digital (binary) data to analog outputs. The

type and range of output as well as the digital format depend on the model.

PLC Applicable models

C120 3G2A6-DA001

3G2A6-DA002

3G2A6-DA003

3G2A6-DA004

3G2A6-DA005

C500

C1000H

C2000H

C500-DA101

3G2A5-DA001

3G2A5-DA002

3G2A5-DA003

3G2A5-DA004

3G2A5-DA005

Be sure to familiarize yourself with the information in this manual and your

PLC’s

Operation Manual

before you try to install or use an Analog I/O Mod-

ule.

Model References

If an Analog I/O Module is referred to using only the last half of the model

number (i.e., 3G2A5 or 3G2A6 is omitted), the information being provided

applies to all Modules whose model number ends with the number given.



SECTION 1

System Design

This section describes the basic use of Analog I/O Modules in a Control System and illustrates the type of

applications in which they might be found.

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

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

1--3 Example Configurations 3.................................................

1--4 Allocated Words 3........................................................

1--4--1 AD001 through AD005 Analog Input Modules 4.......................

1--4--2 AD006 and AD007 Analog Input Modules 4..........................

1--4--3 AD101 Analog Input Modules 4.....................................

1--4--4 DA001 through DA005 Analog Output Modules 4.....................

1--4--5 DA101 Analog Output Modules 4...................................



1--1 IntroductionAnalog I/O Modules are used to interface the digital operation of the PLC

with analog I/O field devices. Analog Input Modules convert analog signal

from input devices to digital PLC data. Analog Output Modules convert digital

PLC data to analog signals for output devices.

1--2 Basic Configuration

This diagram shows some of the possible field devices for the Analog I/O

Modules. Any I/O device may be used as long as its voltage/current require-

ments fall within the specified ranges (see

Appendix B

The I/O device connected to the Analog I/O Module will often serve as an

interface for another device, e.g., a preamplifier may interface a pressure

gauge to increase the signal level to Analog Input Module requirements; a

regulator may interface a heating system to control temperature.

Analog Input ModuleAnalog Output Module

Preamp

Transducer

Inverter

Servomotor

controller

Chart recorder

Temperature

Pressure

Speed

Flow rate

Voltage

Current

Power

Power factor

  Section 1--2



1--3 Example Configurations

Below are two examples of how the Analog I/O Modules can be employed in

control systems. The first diagram shows a temperature regulating system

and the second shows a servomotor positioning system.

Sensor

Servo motor

Encoder

Servo

controller

Locating pulse

Analog Output Module

High-speed

Counter

Module

Platform

PLC

Analog Input Module

fuel

Valve controller

Transducer

Temperature

sensing

element

Output Module

1--4 Allocated Words

Each Analog I/O Module is allocated either two or four words. This section

specifies only the actual number of words allocated to the Modules; use of

these words is dealt with in

Section 4 Operation

The first word allocated to the Module is designated as “n” in this manual.

Remaining words, which are always consecutive, are designated as n+1,

n+2, etc. Refer to you PLC’s

Operation Manual

for details on how words are

allocated to Modules.

  Section 1--4



1--4--1 AD001 through AD005 Analog Input Modules

Each of these Analog Input Modules is allocated two words, one for each

analog input point. Word n is for point 1, and word n+1 is for point 2. Each of

these words contains the decimal-converted value for the analog input point.

1--4--2 AD006 and AD007 Analog Input Modules

Each of these Analog Input Modules is allocated four words, one for each

analog input point. Word n is for point 1, word n+1 is for point 2, word n+2 is

for point 3, and word n+3 is for point 4. Each of these words contains the

decimal-converted value for the analog input point.

1--4--3 AD101 Analog Input Modules

Each of these Analog Input Modules is allocated either two or four words,

depending on the switch settings. The operation of the Module is completely

different depending on this switch setting. Refer to later sections of this man-

ual for details.

1--4--4 DA001 through DA005 Analog Output Modules

Each of these Analog Output Modules is allocated two words, one for each

analog output point. Word n is for point 1; word n+1 is for point 2. Each of

these words contains the digital-converted value for the analog output point.

1--4--5 DA101 Analog Output Modules

Each of these Analog Output Modules is allocated four words, one for each

analog output point. Word n is for point 1, word n+1 is for point 2, word n+2 is

for point 3, and word n+3 is for point 4. Each of these words contains the dig-

ital-converted value for the analog output point.

  Section 1--4



SECTION 2

Components and Switch Settings

This section describes the switch settings for the AD101 Analog Input Module and the DA101 Analog Output

Module. There are no switch settings required on the other Analog I/O Modules.

2--1 AD101 Analog Input Modules 6............................................

2--2 DA101 Analog Output Modules 9...........................................



2--1 AD101 Analog Input Modules

There are two settings necessary for this Module: the operation mode and

the input ranges (offset and gain) for each input point

Select either two-word or four-word operation. If you select two-word opera-

tion, data is transferred between the Analog Input Module and PLC using the

I/O READ and I/O WRITE instructions, WRIT(87) and READ(88). If you se-

lect four-word operation, data is transferred between the Analog Input Mod-

ule and PLC via the MOVE instruction, MOV(21).

Use of WRIT(87) and READ(88) will simplify programming and shorten the

time required to access analog input data.

The switch for this setting is on the back of the Module and will not be acces-

sible while the Module is mounted to a Rack. Be sure to set this switch before

mounting the Module to the PLC. The setting of the switch is read when the

PLC power is turned ON.

Caution Only the following C120 and C500 CPUs are equipped with WRIT(87) and

READ(88), which are required for two-word operation: 3G2C4-SC023-E and

3G2C3-CPU11-EV1 With all other C120 and C500 CPUs, you must use

four-word operation. These instructions are supported by all C1000H and

C2000H CPUs. Two-word operation is not possible if the Analog I/O Module

is mounted to a Slave Rack in a Remote I/O System, regardless of the CPU.

Four-word operation

Two-word operation

Back of Module

Each input point is set with an offset (minimum) of 1 V (4 mA) and a gain

(maximum) of 5 V ( 20 mA) at the factory. Use the following procedure to

change these settings if necessary. The offset and gain can be set to any-

where between 0 and 10 V (0 and 20 mA) as long as the gain is greater than

the offset. (Refer to

Section 3 Operation

for details on AD conversion.)

Caution If an offset is set below 0 V (0 mA), the binary-converted value will be locked

at 000hex; if a gain is set above 10 V (20 mA), the binary-converted value will

be locked at FFFhex for voltage inputs, but not for current inputs.

Operation Mode

Input Ranges

    Section 2--1



1, 2, 3...

1. First set up a power source and meter. For voltage inputs, you will need

a 0 to 10 VDC supply and a DC voltmeter. For current input, you will

need a 0 to 20 mA DC supply and a DC ammeter. Mount the Module to

the PLC and connect the power source and meter. Voltage and current

specifications can be set independently for each input point. The follow-

ing examples illustrate how to wire the input points

AD101

0to10VDC

Wiring when input 1 is set at 0 to 10 V:

AD101

0to20mADC

Short terminals

16 and 17.

Wiring when input 5 is set at 0 to 20 mA:

2. Turn the PLC power supply and confirm that power is being supplied to

the PLC.

SW 1 (DIP switch)

Use to designate the input point.

SW 2 (toggle switch)

Use to read in the desired values.

3. Remove the front panel of the Module with flat-blade screwdriver. Pins 1

through 8 on SW 1 represent input points 1 through 8 respectively. Turn

ON the pin for the input point to be set and make sure all the other pins

are OFF. First we will set input point 1.

OFF ON

4. The offset is the lowest voltage or current that will be input. The Module

will convert this value to 000 hexadecimal. Apply the desired offset to

the terminals of input point 1. Flip SW 2 down to read in as O V or mA

the current or voltage currently being applied to the input terminals.

This input value will be stored as the offset, i.e., as zero.

    Section 2--1

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