SMC Networks Thermo-con INR-244-831 Bedienungsanleitung

PRODUCT NAME

Air cooled Thermo-con (Compact type)

MODEL / Series / Product Number

INR-244-831

Serial Communication

Manual

HEC-OM-Y010

Keep available whenever necessary.

This manual is copyrighted and all rights are reserved by SMC

Corporation, and may not, in whole or in part, be copied,

photocopied or translated without prior written consent of SMC.

History

INR-244-831 i

History

Version

Preface

Contents

Chap.1

Chap.2

Chap.3

Chap.4

1.0

Feb/19/21

Record of Changes

Version

Contents

Date

1.0

First edition

Feb/19/21

Preface

ii INR-244-831

Preface

Thank you very much for purchasing SMC Thermo-con.

This manual contains description for communication protocol of this product for your full benefit from this

product.

Read the operation manual carefully before use of this product, and understand the outline of the

product and safety instructions well. Instructions in the categories, “Danger”, “Warning”and “Caution”,

are important for safety and must be duly followed.

Please contact the following for any question and unclear points regarding the Thermo-con.

SMC Corporation R&D Center

Product Development Division-6

Address: 4-2-2, KINUNODAI,TSUKUBAMIRAI-CITY , IBARAKI-KEN 300-2493, JAPAN

Phone:+81-297-52-6666

Fax:+81-297-20-5007

E-mail:kaihatsu_6_g3@smcjpn.co.jp

Notice: The content of this manual can be revised without a previous notice.

Contents

INR-244-831 iii

Contents

1PREPARATION FOR COMMUNICATION ---------------------------------------- 1-1

2OPTIONS OF COMMUNICATION METHOD------------------------------------- 2-1

2.1 COMMUNICATION PROCEDURE -------------------------------------------------------------------------- 2-1

3COMMUNICATION FORMAT -------------------------------------------------------- 3-1

3.1 TYPE OF MESSAGE ---------------------------------------------------------------------------------------- 3-1

3.2 CONTENT OF COMMUNICATION -------------------------------------------------------------------------- 3-1

3.3COMPOSITION OF REQUIRED MESSAGE (FROM MASTER TO THE PRODUCT) --------------------- 3-2

3.4 COMPOSITION OF RESPONSE MESSAGE (FROM THE PRODUCT TO MASTER) -------------------- 3-3

3.5 EXPLANATION OF CODE----------------------------------------------------------------------------------- 3-4

3.6 CAUTIONS FOR COMMUNICATION ----------------------------------------------------------------------- 3-6

3.7 COMMUNICATION EXAMPLE ------------------------------------------------------------------------------ 3-7

3.8 CONNECTION ----------------------------------------------------------------------------------------------- 3-9

3.9 IDENTIFICATION CODE LIST ------------------------------------------------------------------------------ 3-9

3.10 ASCII CODE LIST --------------------------------------------------------------------------------------- 3-9

4TROUBLESHOOTING------------------------------------------------------------------ 4-1

Preparation for Communication

INR-244-831 1-1

1 Preparation for Communication

Make preparation for using communication facility as follows.

1) Turn off the power switch of Thermo-con. (Detach the communication connector when the power

switch of the thermo-con is turning off.)

2) Connect communication cable to communication connector of Thermo-con.

･Use twist pair shield cable as communication cable.

･Connect the host and thermo-con with the straight cable for RS-485.

･Connect shielded cable of communication cable to communication connector and drop it to FG(flame

ground).

･Connection drawing for communication is shown in the Figures 1-1.

･Length of communication cable for RS-485 shall be limited to around 500[m] in total

･If communication cable for RS-485 is longer, connect terminating resistance (220Ω,1/2w) to each +

and - terminal of the host computer and the farthest Thermo-con.

3) Turn on the power switch of Thermo-con.

4) Set the communication method (page 2-1) for all Thermo-con connected. (Refer the operation

manual (HEC-OM-Y008) how to set the communication method parameters.)

5) That’s all for preparation of communication. Then if a communication command from the host

computer is given, each Thermo-con will respond.

Figure1-1 Communication Connection

Specifications of Communication Method

INR-244-831 2-1

2 Options of Communication Method

Standards･････････････････････････････････････

Circuit type･･･････････････････････････････････

Communication type･･･････････････････････････

Communication speed･･････････････････････････

Character code････････････････････････････････

Parity･････････････････････････････････････････

Start bit･･････････････････････････････････････

Data length･･･････････････････････････････････

Stop bit･･･････････････････････････････････････

BCC check･･･････････････････････････････････

Address･･･････････････････････････････････････

RS-485

Half duplex

Asynchronous

2400,4800,9600,19200, 38400 bps

ASCII

None, even number, odd number

1 bit

7 bit or 8 bit.

1 bit or 2 bit.

Disable, Enable

1 to 99

Note: Values underlined indicate default values.

It is set to these values when delivered.

2.1 Communication Procedure

This product receives a “request message”from the master computer and sends

back a corresponding “response message”. It does not send a message firstly.

Response delay time setting Required interval

Time required for sending/receiving

Master

This product

From

master

0 to 250ms

1ms or more

Request

message

Response

message

From the

product

From

master

From the

product

Response

message

Request

message

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