Omron E5CN-H, E5AN-H User Manual

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MANU

E5CN-H

E5AN-H

E5EN-H

Digital Controllers

E5CN-H

E5AN-H

A/M

SUB1

SUB2

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OUT1

OUT2

STOP

RSP

MANU

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E5EN-H

MANU

A/M

Cat. No. H157-E1-02

User's Manual

Advanced Type

E5CN-H E5AN-H E5EN-H Digital Controllers

User’s Manual

Advanced Type

Revised March 2009

Preface

r f

The E5CN-H, E5AN-H, and E5EN-H are Digital Controllers. The main functions and characteristics of these Digital Controllers are as follows:

This manual describes the E5CN-H, E5AN-H, and E5EN-H. Read this manual thoroughly and be sure you understand it before attempting to use the Digital Controller and use the Digital Controller correctly according to the information provided. Keep this manual in a safe place for easy reference. Refer to the following manual for further information on communications: E5CN-H/E5AN-H/E5EN-H Digital Control- lers Communications Manual Advanced Type (Cat. No. H159).

• Use the universal inputs to input from thermocouples or temperatureresistance thermometers, or to input analog voltage or analog current inputs.

• Either standard or heating/cooling control can be performed.

• Both auto-tuning and self-tuning are supported.

• Event inputs can be used to switch banks, switch between RUN and STOP status, switch between automatic and manual operation, start/reset the simple program function, and perform other operations.

• Heater burnout detection, heater short (HS) alarms, and heater overcurrent (OC) functions are supported. (Applicable to E5CN-H, E5AN-H, and E5EN-H models with heater burnout detection function.)

• Communications are supported. (Applicable to E5CN-H, E5AN-H, and E5EN-H models with communications.)

• User calibration of the sensor input is supported.

• User calibration of transfer output is supported. (Applicable to E5CN-H, E5AN-H, and E5EN-H models with transfer outputs.)

• Use position-proportional control. (Applicable to the E5AN-H and E5ENH.)

• Use a remote SP input (Applicable to the E5AN-H and E5EN-H.)

• The structure is waterproof (IP66).

• Conforms to UL, CSA, and IEC safety standards and EMC Directive.

• The PV display color can be switched to make process status easy to understand at a glance.

Visual Aids

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

 OMRON, 2008

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

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

Note Indicates information of particular interest for efficient and convenient opera-

tion of the product.

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

Read and Understand this Manual

Please read and understand this manual before using the products. Please consult your OMRON representative if you have any questions or comments.

Warranty, Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NONINFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of the products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or

uses not described in this manual.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical

equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

Disclaimers

CHANGE IN SPECIFICATIONS

Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

PERFORMANCE DATA

Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.

ERRORS AND OMISSIONS

The information in this manual has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

vii

Safety Precautions

■ Definition of Precautionary Information

The following notation is used in this manual to provide precautions required to ensure safe usage of the product.

The safety precautions that are provided are extremely important to safety. Always read and heed the information provided in all safety precautions.

The following notation is used.

Indicates a potentially hazardous situation which, if not

CAUTION

■ Symbols

Symbol Meaning

Caution

avoided, is likely to result in minor or moderate injury or in property damage.

General Caution Indicates non-specific general cautions, warnings, and dangers.

Electrical Shock Caution

Indicates possibility of electric shock under specific conditions.

Prohibition

Mandatory Caution

General Prohibition

Indicates non-specific general prohibitions.

General Caution

Indicates non-specific general cautions, warnings, and dangers.

viii

■ Safety Precautions

Do not touch the terminals while power is being supplied. Doing so may occasionally result in minor injury due to electric shock.

Do not allow pieces of metal, wire clippings, or fine metallic shavings or filings from installation to enter the product. Doing so may occasionally result in electric shock, fire, or malfunction.

Do not use the product where subject to flammable or explosive gas. Otherwise, minor injury from explosion may occasionally occur.

Never disassemble, modify, or repair the product or touch any of the internal parts. Minor electric shock, fire, or malfunction may occasionally occur.

CAUTION - Risk of Fire and Electric Shock a) This product is UL listed as Open Type Process Control

Equipment. It must be mounted in an enclosure that does not allow fire to escape externally.

b) When using more than one shutoff switch, always turn OFF all

the shutoff switches to ensure that no power is being supplied

before servicing the product. c) Signal inputs are SELV, limited energy. (See note 1.) d) Caution: To reduce the risk of fire or electric shock, do not

interconnect the outputs of different Class 2 circuits. (See note

2.)

CAUTION

If the output relays are used past their life expectancy, contact fusing or burning may occasionally occur. Always consider the application conditions and use the output relays within their rated load and electrical life expectancy. The life expectancy of output relays varies considerably with the output load and switching conditions.

Note 1: An SELV circuit is one separated from the power supply with double

insulation or reinforced insulation, that does not exceed 30 V r.m.s. and 42.4 V peak or 60 VDC.

Note 2: A class 2 power supply is one tested and certified by UL as having

the current and voltage of the secondary output restricted to specific levels.

CAUTION

Tighten the terminal screws to between 0.74 and 0.90 N·m. Loose screws may occasionally result in fire.

Set the parameters of the product so that they are suitable for the system being controlled. If they are not suitable, unexpected operation may occasionally result in property damage or accidents.

A malfunction in the Digital Controller may occasionally make control operations impossible or prevent alarm outputs, resulting in property damage. To maintain safety in the event of malfunction of the Digital Controller, take appropriate safety measures, such as installing a monitoring device on a separate line.

When inserting the body of the Digital Controller into the case, confirm that the hooks on the top and bottom are securely engaged with the case. If the body of the Digital Controller is not inserted properly, faulty contact in the terminal section or reduced water resistance may occasionally result in fire or malfunction.

When connecting the Control Output Unit to the socket, press it in until there is no gap between the Control Output Unit and the socket. Otherwise contact faults in the connector pins may occasionally result in fire or malfunction.

Precautions for Safe Use

Be sure to observe the following precautions to prevent operation failure, malfunction, or adverse affects on the performance and functions of the product. Not doing so may occasionally result in unexpected events.

1) The product is designed for indoor use only. Do not use the product outdoors or in any of the following locations.

• Places directly subject to heat radiated from heating equipment.

• Places subject to splashing liquid or oil atmosphere.

• Places subject to direct sunlight.

• Places subject to dust or corrosive gas (in particular, sulfide gas and ammonia gas).

• Places subject to intense temperature change.

• Places subject to icing and condensation.

• Places subject to vibration and large shocks.

2) Use and store the Digital Controller within the rated ambient temperature and humidity. Gang-mounting two or more Digital Controllers, or mounting Digital Controllers above each other may

cause heat to build up inside the Digital Controllers, which will shorten their service life. In such a case, use forced cooling by fans or other means of air ventilation to cool down the Digital Controllers.

3) To allow heat to escape, do not block the area around the product. Do not block the ventilation holes on the product.

4) Be sure to wire properly with correct polarity of terminals.

5) Use specified size (M3.5, width 7.2 mm or less) crimped terminals for wiring. To connect bare wires, use stranded or solid copper wires with a gage of AWG24 to AWG14 (equal to cross-sectional areas of 0.205

to 2.081 mm terminals can be inserted into a single terminal.

6) Do not wire the terminals which are not used.

7) To avoid inductive noise, keep the wiring for the Digital Controller's terminal block away from power cables carry high voltages or large currents. Also, do not wire power lines together with or parallel to Digital Controller wiring. Using shielded cables and using separate conduits or ducts is recommended. Attach a surge suppressor or noise filter to peripheral devices that generate noise (in particular, motors, transformers, solenoids, magnetic coils or other equipment that have an inductance component). When a noise filter is used at the power supply, first check the voltage or current, and attach the noise filter as close as possible to the Digital controller. Allow as much space as possible between the Digital Controller and devices that generate powerful high frequencies (high-frequency welders, high-frequency sewing machines, etc.) or surge.

8) Use this product within the rated load and power supply.

9) Make sure that the rated voltage is attained within two seconds of turning ON the power using a switch or relay contact. If the voltage is applied gradually, the power may not be reset or output malfunctions may occur.

10) Make sure that the Digital Controller has 30 minutes or more to warm up after turning ON the power before starting actual control operations to ensure the correct temperature display.

11) When using self-tuning, turn ON power for the load (e.g., heater) at the same time as or before supplying power to the Digital Controller. If power is turned ON for the Digital Controller before turning ON power for the load, self-tuning will not be performed properly and optimum control will not be achieved.

12) A switch or circuit breaker should be provided close to this unit. The switch or circuit breaker should be within easy reach of the operator, and must be marked as a disconnecting means for this unit.

13) Always turn OFF the power supply before pulling out the interior of the product, and never touch nor apply shock to the terminals or electronic components. When inserting the interior of the product, do not allow the electronic components to touch the case.

14) Do not use paint thinner or similar chemical to clean with. Use standard grade alcohol.

). (The stripping length is 5 to 6 mm.) Up to two wires of same size and type, or two crimp

15) Design system (control panel, etc.) considering the 2 second of delay that the controller’s output to be set after power ON.

16) The output may turn OFF when shifting to certain levels. Take this into consideration when performing control.

17) The number of EEPROM write operations is limited. Therefore, use RAM write mode when frequently overwriting data during communications or other operations.

18) Always touch a grounded piece of metal before touching the Digital Controller to discharge static electricity from your body.

19) Do not remove the terminal block. Doing so may result in failure or malfunction.

20) Control outputs that are voltage outputs are not isolated from the internal circuits. When using a grounded thermocouple, do not connect any of the control output terminals to ground. (Doing so may result in an unwanted circuit path, causing error in the measured temperature.)

21) When replacing the body of the Digital Controller, check the condition of the terminals. If corroded terminals are used, contact failure in the terminals may cause the temperature inside the Digital Controller to increase, possibly resulting in fire. If the terminals are corroded, replace the case as well.

22) Use suitable tools when taking the Digital Controller apart for disposal. Sharp parts inside the Digital Controller may cause injury.

23) Check the specifications of the Control Output Unit and assemble it correctly.

24) When mounting the Control Output Unit, read and follow all relevant information in the product catalogs and manuals.

25) When applying Lloyd's standards, install the Digital Controller according to the requirements given in Shipping Standards.

● Service Life

Use the Digital Controller within the following temperature and humidity ranges: Temperature: −10 to 55°C (with no icing or condensation), Humidity: 25% to 85%

If the Controller is installed inside a control board, the ambient temperature must be kept to under 55°C, including the temperature around the Controller.

The service life of electronic devices like Digital Controllers is determined not only by the number of times the relay is switched but also by the service life of internal electronic components. Component service life is affected by the ambient temperature: the higher the temperature, the shorter the service life and, the lower the temperature, the longer the service life. Therefore, the service life can be extended by lowering the temperature of the Digital Controller.

When two or more Digital Controllers are mounted horizontally close to each other or vertically next to one another, the internal temperature will increase due to heat radiated by the Digital Controllers and the service life will decrease. In such a case, use forced cooling by fans or other means of air ventilation to cool down the Digital Controllers. When providing forced cooling, however, be careful not to cool down the terminals sections alone to avoid measurement errors.

● Ambient Noise

To avoid inductive noise, keep the wiring for the Digital Controller's terminal block wiring away from power cables carrying high voltages or large currents. Also, do not wire power lines together with or parallel to Digital Controller wiring. Using shielded cables and using separate conduits or ducts is recommended. Attach a surge suppressor or noise filter to peripheral devices that generate noise (in particular, motors, transformers, solenoids, magnetic coils or other equipment that have an inductance component). When a noise filter is used at the power supply, first check the voltage or current, and attach the noise filter as close as possible to the Digital Controller. Allow as much space as possible between the Digital Controller and devices that generate powerful high frequencies (high-frequency welders, high-frequency sewing machines, etc.) or surge.

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● Ensuring Measurement Accuracy

When extending or connecting the thermocouple lead wire, be sure to use compensating wires that match the thermocouple types.

When extending or connecting the lead wire of the platinum resistance thermometer, be sure to use wires that have low resistance and keep the resistance of the three lead wires the same.

Mount the Digital Controller so that it is horizontally level. If the measurement accuracy is low, check to see if input shift has been set correctly.

● Waterproofing

The degree of protection is as shown below. Sections without any specification on their degree of protection or those with IP@0 are not waterproof.

Front panel: IP66 Rear case: IP20, Terminal section: IP00

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Precautions for Operation

1) It takes approximately two seconds for the outputs to turn ON from after the power supply is turned ON. Due consideration must be given to this time when incorporating Digital Controllers into a control panel or similar device.

2) Make sure that the Digital Controller has 30 minutes or more to warm up after turning ON the power before starting actual control operations to ensure the correct temperature display.

3) When executing self-tuning, turn ON power for the load (e.g., heater) at the same time as or before supplying power to the Digital Controller. If power is turned ON for the Digital Controller before turning ON power for the load, self-tuning will not be performed properly and optimum control will not be achieved. When starting operation after the Digital Controller has warmed up, turn OFF the power and then turn it ON again at the same time as turning ON power for the load. (Instead of turning the Digital Controller OFF and ON again, switching from STOP mode to RUN mode can also be used.)

4) Avoid using the Controller in places near a radio, television set, or wireless installing. The Controller may cause radio disturbance for these devices.

Shipping Standards

The E5@N-H Digital Controllers comply with Lloyd's standards. When applying the standards, the following installation and wiring requirements must be met in the application.

■ Application Conditions

1) Installation Location

The E5@N-H Digital Controllers comply with installation categories ENV1 and ENV2 of Lloyd's standards. They must therefore be installed in a location equipped with air conditioning. They cannot be used on the bridge or decks, or in a location subject to strong vibration.

2) Wiring Conditions

Install the recommended ferrite core and wrap the line around it three turns for the applicable lines (e.g., power supply cable line and signal lines) of the models listed in the following table. (See illustrations.) Install the ferrite cores as close to the terminal block of the E5@N-H as possible. (As a guideline, the ferrite core should be within 10 cm of the terminal block.)

● Lines Requiring Ferrite Cores

Model Signal line or power supply line onto which a ferrite core is installed

E5CN, E5CN-U, or E5CN-H Input power supply line E5EN, E5AN, E5EN-H, or

E5AN-H

● Recommended Ferrite Core

Manufacturer Seiwa Electric Manufacturing Co., Ltd. Model E04RA310190100

Input power supply line and I/O lines (control outputs 1 and 2, communications, event inputs EV1, EV2, EV3, and EV4, transfer output, and external power supply (not provided on Advanced-type Digital Controllers (E5

@N-H)))

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● Ferrite Core Connection Examples

1. E5CN/E5CN-H

−

DO NOT USE

−

Control output 1

−

DO NOT USE

−

●

Auxiliary outputs (relay outputs)

Auxiliary output 1

Input power supply

Auxiliary output 2

●

3 turns

Power suppl

AC/DC

Analog input

Power

AC/DC

supply

Connected to control output 1.

Connected to event inputs 3 and 4.

Connected to transfer output.

TC/Pt universal input

2. E5AN/E5EN/E5AN-H/E5EN-H

3 turns

Input power supply

Control output 1

Auxiliary output 3

Auxiliary output 2

Auxiliary output 1

DO NOT USE

−

EV3

EV4

Transfer output

−

TC/Pt universal input

4 to 20 mA DC (Load: 600 Ω max.)

Event Inputs

EV2

CT1/CT2

CT1

CT2

DO NOT USE

−

EV1

Control Output 2

−

DO NOT USE

External Power Supply

External power supply 12 VDC, 20 mA

−

DO NOT USE

−

Analog input

Communications

DO NOT USE

3 turns

DO NOT USE

Connected to communications or event inputs 1 and 2.

Connected to

3 turns

−

RS-485RS-232C

B (+)

A (−)

DO NOT USE

B (+)

A (−)

control output 2 or external power supply.

Preparations for Use

Be sure to thoroughly read and understand the manual provided with the product, and check the following points.

Timing Check point Details

Purchasing the product

Setting the Unit Product installation loca-

Wiring Terminal wiring Do not subject the terminal screws to excessive stress (force) when

Operating environment

Product appearance After purchase, check that the product and packaging are not dented or

Product model and specifications

tion

Power supply inputs Wire the power supply inputs correctly. Incorrect wiring will result in

Ambient temperature The ambient operating temperature for the product is −10 to 55°C (with

Vibration and shock Check whether the standards related to shock and vibration are satis-

Foreign particles Install the product in a location that is not subject to liquid or foreign

otherwise damaged. Damaged internal parts may prevent optimum control.

Make sure that the purchased product meets the required specifications.

Provide sufficient space around the product for heat dissipation. Do not block the vents on the product.

tightening them. Make sure that there are no loose screws after tightening terminal

screws to the specified torque of 0.74 to 0.90 N·m. Be sure to confirm the polarity for each terminal before wiring the termi-

nal block and connectors.

damage to the internal circuits.

no condensation or icing). To extend the service life of the product, install it in a location with an ambient temperature as low as possible. In locations exposed to high temperatures, if necessary, cool the products using a fan or other cooling method.

fied at the installation environment. (Install the product in locations where the conductors will not be subject to vibration or shock.)

particles entering the product.

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Conventions Used in This Manual

Meanings of Abbreviations

The following abbreviations are used in parameter names, figures and in text explanations. These abbreviations mean the following:

Symbol Term

PV Process value SP Set point SV Set value AT Au t o- tu n i ng ST Self-tuning HB Heater burnout HS Heater short (See note 1.) OC Heater overcurrent LBA Loop burnout alarm EU Engineering unit (See note 2.) RSP Remote SP LSP Local SP

Note: (1) A heater short indicates that the heater remains ON even when the control output from the Digital

Controller is OFF because the SSR has failed or for any other reason.

(2) “EU” stands for Engineering Unit. EU is used as the minimum unit for engineering units such as °C,

m, and g. The size of EU varies according to the input type. For example, when the input temperature setting range is –200 to +1300°C, 1 EU is 1°C, and when the input temperature setting range is –20.0 to +500.0°C, 1 EU is 0.1°C. For analog inputs, the size of EU varies according to the decimal point position of the scaling setting, and 1 EU becomes the minimum scaling unit.

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How to Read Display Symbols

The following tables show the correspondence between the symbols displayed on the displays and alphabet characters. The default is for 11-segment displays.

abcdefghijklm

ABCDEFG

IJKL

nopqrstuvwxyz

The Character Select parameter in the advanced function setting level can be turned OFF to display the following 7-segment characters.

ABCDEFGH I JKLM

RS T UVWX Y Z

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NOPQRSTUVWXYZ

TABLE OF CONTENTS

SECTION 1

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

1-1 Names of Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 I/O Configuration and Main Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-3 Setting Level Configuration and Key Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1-4 Communications Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

SECTION 2

Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2-1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2-2 Wiring Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2-3 Using the Support Software Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2-4 Using Infrared Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

SECTION 3

Basic Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

3-1 Initial Setting Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

3-2 Setting the Input Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3-3 Selecting the Temperature Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

3-4 Selecting PID Control or ON/OFF Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

3-5 Setting Output Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

3-6 Setting the Set Point (SP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

3-7 Using ON/OFF Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

3-8 Determining PID Constants (AT, ST, Manual Setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

3-9 Alarm Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

3-10 Using Heater Burnout, Heater Short, and Heater Overcurrent Alarms . . . . . . . . . . . . . . . . . 71

3-11 Setting the No. 3 Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

SECTION 4

Applications Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

4-1 Shifting Input Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

4-2 Alarm Hysteresis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

4-3 Setting Scaling Upper and Lower Limits for Analog Inputs. . . . . . . . . . . . . . . . . . . . . . . . . 92

4-4 Executing Heating/Cooling Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

4-5 Using Event Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

4-6 Setting the SP Upper and Lower Limit Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

4-7 Using the SP Ramp Function to Limit the SP Change Rate . . . . . . . . . . . . . . . . . . . . . . . . . 102

4-8 Moving to the Advanced Function Setting Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

4-9 Using the Key Protect Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

4-10 PV Change Color. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

4-11 Alarm Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

4-12 Loop Burnout Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

4-13 Performing Manual Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

4-14 Using the Transfer Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

xix

TABLE OF CONTENTS

4-15 Using Banks and PID Sets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129

4-16 Using the Simple Program Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

4-17 Output Adjustment Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

4-18 Using the Extraction of Square Root Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

4-19 Setting the Width of MV Variation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

4-20 Setting the PF Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

4-21 Counting Control Output ON/OFF Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

4-22 Displaying PV/SV Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

4-23 Using a Remote SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

4-24 Position-proportional Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157

4-25 Logic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

SECTION 5

Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

5-1 Conventions Used in this Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

5-2 Protect Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

5-3 Operation Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

5-4 Adjustment Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

5-5 Bank Setting Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

5-6 PID Setting Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

5-7 Monitor/Setting Item Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220

5-8 Manual Control Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

5-9 Initial Setting Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

5-10 Advanced Function Setting Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

5-11 Communications Setting Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

SECTION 6

CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

6-1 Parameter Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284

6-2 User Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285

6-3 Thermocouple Calibration (Thermocouple/Resistance Thermometer Input) . . . . . . . . . . . . 285

6-4 Platinum Resistance Thermometer Calibration

(Thermocouple/Resistance Thermometer Input). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289

6-5 Calibrating Analog Input (Analog Input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290

6-6 Calibrating the Transfer Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

6-7 Checking Indication Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351

About this Manual:

This manual describes the E5CN/AN/EN-H Digital Controllers and includes the sections described below.

Please read this manual carefully and be sure you understand the information provided before attempting to set up or operate an E5CN/AN/EN-H Digital Controller.

• Overview

Section 1 introduces the features, components, and main specifications of the E5CN/AN/EN-H Digital Controllers.

•Setup

Section 2 describes the work required to prepare the E5CN/AN/EN-H Digital Controllers for operation, including installation and wiring.

• Basic Operations

Section 3 describes the basic operation of the E5CN/AN/EN-H Digital Controllers, including key operations to set parameters and descriptions of display elements based on specific control examples.

Section 5 describes the individual parameters used to set up, control, and monitor operation.

• Operations for Applications

Section 4 describes scaling, the SP ramp function, and other special functions that can be used to make the most of the functionality of the E5CN/AN/EN-H Digital Controllers.

Section 5 describes the individual parameters used to setup, control, and monitor operation.

• User Calibration

Section 6 describes how the user can calibrate the E5CN/AN/EN-H Digital Controllers.

• Appendix

The Appendix provides information for easy reference, including lists of parameters and settings.

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

sonal 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.

xxi

xxii

SECTION 1

Introduction

This section introduces the features, components, and main specifications of the E5CN-H, E5AN-H, and E5EN-H Digital Controllers.

1-1 Names of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-1-2 Explanation of Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1-1-3 Using the Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1-2 I/O Configuration and Main Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-2-1 I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-2-2 Main Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1-3 Setting Level Configuration and Key Operations . . . . . . . . . . . . . . . . . . . . . . 11

1-3-1 Selecting Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1-3-2 Saving Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1-4 Communications Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Names of Parts Section 1-1

1-1 Names of Parts

1-1-1 Front Panel

E5CN-H

Temperature unit

No. 1 display

Operation indicators

No. 2 display

Level Key

E5AN-H

Mode Key

Temperature unit

Operation indicators

PF (Function (Auto/ Manual)) Key

Level Key

Down Key

Mode Key

Up Key

Down Key

No. 1 display

No. 2 display

No. 3 display

Up Key

Infrared Communications Light Receiver

Names of Parts Section 1-1

E5EN-H

Operation indicators

Temperature unit

Operation indicators

Mode Key

Level Key

Down Key

No. 1 display

No. 2 display

No. 3 display

Up Key

PF (Function (Auto/ Manual)) Key

Infrared Communications Light Receiver

1-1-2 Explanation of Indicators

No. 1 Display Displays the process value or parameter name.

Lights for approximately one second during startup.

No. 2 Display Displays the set point, parameter operation read value, or the variable input

value.

Lights for approximately one second during startup.

No. 3 Display (E5AN/EN-H Only)

Operation Indicators

Displays MV (valve opening), soak time remain, or bank number. Lights for approximately one second during startup.

1,2,3... 1. SUB1 (Sub 1)

Lights when the function set for the Auxiliary Output 1 Assignment parameter is ON.

SUB2 (Sub 2) Lights when the function set for the Auxiliary Output 2 Assignment parameter is ON.

SUB3 (Sub 3) Lights when the function set for the Auxiliary Output 3 Assignment parameter is ON.

2. HA (Heater Burnout, Heater Short Alarm, Heater Overcurrent Detection Output Display) Lights when a heater burnout, heater short alarm, or heater overcurrent occurs.

3. OUT1 (Control Output 1) Lights when the control output function assigned to control output 1 turns ON. For a current output, however, OFF for a 0% output only. With position-proportional models, OUT1 lights when the "open" output turns ON.

Names of Parts Section 1-1

OUT2 (Control Output 2) Lights when the control output function assigned to control output 2 turns ON. For a current output, however, OFF for a 0% output only. With position-proportional models, OUT2 lights when the "close" output turns ON.

4. STOP Lights when operation is stopped.

During operation, this indicator lights when operation is stopped by an event or by key input using the RUN/STOP function.

5. CMW (Communications Writing) Lights when communications writing is enabled and is not lit when it is disabled.

6. MANU (Manual Mode) Lights when the auto/manual mode is set to manual mode.

7. (Key) Lights when settings change protect is ON (i.e., when the U and D Keys are disabled by protected status.

8. RSP Lights when the SP Mode parameter is set to Remote SP Mode.

Temperature Unit The temperature unit is displayed when parameters are set to display a tem-

perature. The display is determined by the currently set value of the Temperature Unit parameter. c indicates °C and f indicates °F.

This indicator flashes during ST operation. It is OFF when an analog input is set.

Ir Indicates whether infrared communications is enabled. Lights when communi-

cations is enabled. Not lit when infrared communications is disabled.

• Infrared Communications Light Receiver Used when infrared cable is used.

1-1-3 Using the Keys

This section describes the basic functions of the front panel keys.

PF (Function (Auto/ Manual)) Key (E5AN/EN-H Only)

O Key Press this key to move between setting levels. The setting level is selected in

M Key Press this key to change parameters within a setting level.

U Key Each press of this key increments the value displayed on the No. 2 display or

This is a function key. When it is pressed for at least 1 second, the function set in the PF Setting parameter will operate.

Example: When A-M (auto/manual) is selected in the PF Setting parameter (initial value: A-M), the key operates as an auto/manual switch, switching between Auto Mode and Manual Mode. If the key is pressed for more than 1 second (regardless of key release timing), the mode will switch.

the following order: operation level: adjustment level, initial setting level, communications setting level.

The parameters can be reversed by holding down the key (moving one per second in reverse order).

advances the setting. Holding the key down speeds up the incrementation.

D Key Each press of this key decrements values displayed on the No. 2 display or

reverses the setting. Holding the key down speeds up the incrementation.

I/O Configuration and Main Functions Section 1-2

O + M Keys Press these keys to change to the protect level. For details on operations

involving holding these keys down simultaneously, refer to 1-3 Setting Level

Configuration and Key Operations. For details on the protect level, refer to SECTION 5 Parameters.

O + U Keys O + D Keys

To restrict set value changes (in order to prevent accidental or incorrect operations), these key operations require simultaneously pressing the O key along with U or D key. This applies only to the parameter for the password to move to protect level. (Refer to page 174.)

1-2 I/O Configuration and Main Functions

1-2-1 I/O Configuration

E5CN-H

Temperature input or analog input

CT1 input

CT2 input

Control section

Control output (heating)

Control output (cooling)

Heating/cooling

Alarm 3

Alarm 2

Alarm 1

HB alarm

Control output 1

Control output 2

Auxiliary output 2

Event inputs 2 channels

HS alarm

OC alarm

Input error

Program end output

Communications function

Auxiliary output 1

Note Functions can be assigned individually for each output by changing the set

values for the Control Output 1 Assignment, the Control Output 2 Assignment, the Auxiliary Output 1 Assignment, and the Auxiliary Output 2 Assignment parameters in the advanced function setting level.

I/O Configuration and Main Functions Section 1-2

Model Number Structure

Model Number Legends

Controllers Option Units

E5CN-@@@M@-@-500

1 2 3 4 5 6 7

1. Type

H: Advanced

2. Control Output 1

R: Relay output Q: Voltage output

(for driving SSR) C: Current output V: Linear voltage output

3. Auxiliary Outputs

2: Two outputs

4. Option 1

M: Option Unit can be mounted.

5. Power Supply Voltage

Blank: 100 to 240 VAC D: 24 VAC/VDC

6. Case Color

Blank: Black W: Silver

7. Terminal Cover

−500: With terminal cover

E53-@@@@

1 2 3 4

1. Applicable Controller

CN: E5CN-H or E5CN

2. Function 1

Blank: None Q: Control output 2 (voltage output for

driving SSR) P: Power supply for sensor C: Current output

3. Function 2

Blank: None H: Heater burnout/Heater short/

Heater overcurrent detection (CT1) HH: Heater burnout/Heater short/

Heater overcurrent detection (CT2) B: Two event inputs 03: RS-485 communications H03: Heater burnout/Heater short/

Heater overcurrent detection (CT1)

+ RS-485 communications HB: Heater burnout/Heater short/

Heater overcurrent detection (CT1)

+ Two event inputs HH03: Heater burnout/Heater short/

Heater overcurrent detection (CT2)

+ RS-485 communications H01: Heater burnout/Heater short/

Heater overcurrent detection (CT1)/

RS-232C communications F: Transfer output BF: Two event inputs/Transfer output

4. Version

N2: Available only to models released

after January 2008

I/O Configuration and Main Functions Section 1-2

E5AN/EN-H

Temperature input or analog input

RSP input error

CT1 input

CT2 input

Event inputs 1 and 2 (2 channels)

Event inputs 3 and 4 (2 channels)

Control section

Control output (heating)

Control output (cooling)

Alarm 3

Alarm 2

Alarm 1

HB alarm

HS alarm

OC alarm

Input error

Remote SP input error

Program end output

Communications function

Heating/cooling

Control output 1

Control output 2

Alarm output 3

Alarm output 2

Alarm output 1

Note Functions can be assigned individually to each output by changing the set val-

ues for the Control Output 1 Assignment, Control Output 2 Assignment, Auxiliary Output 1 Assignment, Auxiliary Output 2 Assignment, and Auxiliary Output 3 Assignment parameters in the advanced function setting level.

I/O Configuration and Main Functions Section 1-2

Model Number Structure

Model Number Legends

Controllers Option Units

E5AN/E5EN-@@@@@@@M@-@-500

1 2 3 4 5 6 7 8 9 10

1. Type

H: Advanced

2. Control Mode

Blank: Standard or heating/cooling control P: Position-proportional control

3. Control Output 1

A: Control Output Unit R: Relay output S: SSR output

4. Control Output 2

A: Control Output Unit R: Relay output S: SSR output

5. Auxiliary Outputs

2: Two outputs 3: Three outputs

6. Option 1

Blank: None H: Heater burnout/Heater short/

Heater overcurrent detection (CT1)

HH: Heater burnout/Heater short/

Heater overcurrent detection (CT2)

7. Option 2

B: Two event inputs BF: Event input + Transfer output

8. Option 3

M: Option Unit can be mounted.

9. Power Supply Voltage

Blank: 100 to 240 VAC D: 24 VAC/VDC

10. Case Color

Blank: Black W: Silver

11. Terminal Cover

-500: With Terminal Cover

E53-@

1. Function

EN01: RS-232C

communications

EN02: RS-422

communications

EN03: RS-485

communications AKB: Event input

Output Units

E53-@@

1 2

1. Control Output

R: Relay output Q: Voltage output

(for driving SSR)

Q3: Voltage output

(for driving SSR) + 24 VDC (NPN)

Q4: Voltage output

(for driving SSR) + 24 VDC (PNP)

C3: Current output +

4 to 20 mA DC

C3D: Current output +

0 to 20 mA DC

V34: Linear voltage output +

0 to 10 VDC

V35: Linear voltage output +

0 to 5 VDC

2. Version

Blank: Available for

E5AN-H/E5EN-H and E5AK/E5EK.

N: Available only for

E5AN-H/E5EN-H.

1-2-2 Main Functions

This section introduces the main E5@N-H functions. For details on particular functions and how to use them, refer to SECTION 3 Basic Operation and following sections.

Input Sensor Types • The following input sensors can be connected.:

Thermocouple: K, J, T, E, L, U, N, R, S, B, W, PLII Platinum resistance thermometer: Pt100, JPt100 Current input: 4 to 20 mA DC, 0 to 20 mA DC Voltage input: 1 to 5 VDC, 0 to 5 V DC, 0 to 10 V DC

I/O Configuration and Main Functions Section 1-2

Control Outputs • A control output can be a relay output, voltage output (for driving SSR),

linear voltage output, SSR output, or current output, depending on the model.

• With the E5CN-H@2@@, auxiliary output 2 is used as control output (cool-

ing) when heating/cooling control is selected. (It is also possible to allocate a different output.) Therefore, use auxiliary output 1 if an auxiliary output is required while using heating/cooling control.

Alarms • Set the alarm type and alarm value or the alarm value upper and lower

limits.

• If necessary, a more comprehensive alarm function can be achieved by setting a standby sequence, alarm hysteresis, auxiliary output close in alarm/open in alarm, alarm latch, alarm ON delay, and alarm OFF delay.

• If the Input Error Output parameter is set to ON, the output assigned to alarm 1 function will turn ON when an input error occurs.

• If the Remote SP Input Error Output parameter is set to ON, the output assigned to the alarm 1 function will turn ON when an input error occurs.

Control Adjustment • Optimum PID constants can be set easily by performing AT (auto-tuning)

or ST (self-tuning).

Event Inputs • With the E53-CN@B@N2 for the E5CN-H (for two event inputs), the

E5AN/EN-H@B@M@-500 for E5AN/EN-H (for two event inputs) or the E5AN/EN-H@B@M@-500 with the E53-AKB for the E5AN/EN-H (for four event inputs), the following functions can be executed using event inputs: switching banks, switching RUN/STOP, switching between automatic and manual operation, starting/resetting the program, inverting direct/reverse operation, switching SP modes, 100% AT execute/cancel, 40% AT execute/cancel, setting change enable/disable, communications writing enable/disable and canceling the alarm latch.

Heater Burnout, HS Alarm, and Heater Overcurrent

Communications Functions

Note (1) CompoWay/F is an integrated general-purpose serial communications

• With the E53-CN@H@N2 or E53-CN@HH@N2 for the E5CN-H, or the E5AN/EN-H@@H@-500 or E5AN/EN-H@@HH@-500, the heater burnout detection function, HS alarm function, and heater overcurrent detection function can be used.

• Communications functions utilizing CompoWay/F (See note 1.), SYSWAY (See note 2.), or Modbus (See note 3.) can be used.

RS-485 Interface Use the E53-CN@03N2 for the E5CN-H, or the E53-EN03 for the E5AN/ EN-H.

RS-232C Interface Use the E53-CN@01N2 for the E5CN-H, or the E53-EN01 for the E5AN/ EN-H.

RS-422 Interface Use the E53-EN02 for the E5AN/EN-H.

protocol developed by OMRON. It uses commands compliant with the well-established FINS, together with a consistent frame format on OMRON Programmable Controllers to facilitate communications be-

tween personal computers and components. (2) SYSWAY communications do not support alarm 3. (3) Modbus is a communications control method conforming to the RTU

Mode of Modbus Protocol. Modbus is a registered trademark of

Schneider Electric.

+ 344 hidden pages