Keyence DL-EP1 Uživatelský manuál stáhnout pdf (Strana 56)

- EtherNet/IP Compatible Network Unit DL-EP1 User’s Manual (FD-MH) -

3-4 Message Communication

3-28

Communicating with FD-MH Series

The EtherNet/IP scanner and the DL-EP1 exchange Explicit messages for

communication. The following provides a basic example of the command format of

Explicit messages to be sent and the response format returned from the DL-EP1 to

the scanner.

● Commands

・Command format

*1 For details on usable services, refer to "DL Object (Class ID:67H)" (Page 3-

31) or "Objects Usable by DL-EP1" (Page 5-17).

● Responses

・Response format

Basic Format and Processing Flow of Message Communication

Item Description

Service code

Designates the service code to be used (Service Code).

Class ID Designates a class ID (Class ID) tailored to the service

to be used.

Instance ID

Designates an instance ID (Instance ID) tailored to the service

to be

used.

Attribute ID

Designates an attribute ID (Attribute ID) tailored to the service

to be

used.

Service Data Designates service data (Service Data) tailored to the service

to be used.

Item Description

General status

Returns a general status in respect to the command (General Status). 00H

is returned when the command ends normally.

Additional status Returns the additional status (Additional Status).

Service response

data

Returns service response data Service Response Data) in respect to the

command.

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