Rockwell-automation RECOMM-ENET EtherNet/IP Communications Module Instrukcja Użytkownika Pobierz pdf (Strona 78)

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EtherNet/IP Communications Module

7.4.1 Get Attribute Single Message Example

A Get Attribute Single message reads a single attribute value. In

this example, we read the value of a parameter in an SP600 drive.

Message Format Example

Table 7.1 identifies key settings for the message format:

Figure 7.4 – Message Format for a Get Attribute Single Message

Table 7.1 – Settings for Message Format

Configuration Value Description Page

Service Type

Service Code

Class

Instance

Attribute

Destination

1. The default setting for Service Type is “Custom,” which enables you to

enter a Service Code that is not available from the Service Type pulldown

menu. When you select a Service Type other than “Custom” from the

pulldown menu, an appropriate Hex. value is automatically assigned to

the Service Code box which grays out (inaccessible).

Get Attribute Single

e (Hex.)

93 (Hex.)

1 (Dec.)

9 (Hex.)

GetAttributeSingleData

Read Parameter data

Code for Get_Attribute_Single

DPI Parameter Object

Parameter 1 (Output Freq)

Parameter Value

Controller tag for response data

C-24

C-10

C-20

C-21

SP600

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 193 194

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Rockwell-automation RECOMM-ENET EtherNet/IP Communications Module Instrukcja Użytkownika Strona 78