SMC Networks Thermo-con HEF002-A6 Bedienungsanleitung

PRODUCT NAME

Air cooled Thermo-con (Compact type)

MODEL / Series / Product Number

HEF002-A6

Serial Communication

Manual

DOC1009224

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

HEF002-A6 i

History

Version Preface Contents Chap.1 Chap.2 Chap.3 Chap.4

1.0 Jul/7/22 Jul/7/22 Jul/7/22 Jul/7/22 Jul/7/22 Jul/7/22

Record of Changes

Version Contents Date

1.0 First edition Jul/7/22

Preface

ii HEF002-A6

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:[email protected]o.jp

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

Contents

HEF002-A6 iii

Contents

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

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

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

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

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

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

3.3 COMPOSITION 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

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

Preparation for Communication

HEF002-A6 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 (RS-485 or RS-232C) of Thermo-con.

･Use twist pair shield cable as communication cable.

･Connect the host and thermo-con with the cross cable for RS-232C and the straight cable for RS-485.

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

ground).

･Connection drawing for communication is shown in the Figures 1-1, Figures 1-2.

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

232C shall be 15[m].

･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

(DOC1003077) 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.

Figure1-2 Communication Connection (RS-232C)

Host Computer

RS-232C

Symbol

Thermo-con

RS-232C

CS Short

Pin No.

Connector

shell

Symbol

Figure1-1 Communication Connection (RS-485)

Host Computer

RS-485

Thermo-con　No.1

RS-485

Thermo-con　No.2

RS-485

Thermo-con　No.3

RS-485

Internal connection

Terminating

resistance

220Ω1/2W

Terminating

resistance

220Ω1/2W

Internal connection Internal connection

Pin No.

Connector

shell

SymbolPin No.

Connector

shell

SymbolPin No.

Connector

shell

Symbol

Pin No.

Connector

shell

Symbol Pin No.

Connector

shell

Symbol Pin No.

Connector

shell

Symbol

Thermo-con No.16

9 9 9

Specifications of Communication Method

HEF002-A6 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, RS-232C

Half duplex

Asynchronous

2400,4800,9600,19200, 38400 bps

ASCII

None, even number, odd number

1 bit

7 bit, 8 bit.

1 bit, 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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