Instances, Class attributes, Instance attributes – Rockwell Automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Communication Adapter User Manual User Manual
Page 208: Class attributes instance attributes

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Rockwell Automation Publication 20COMM-UM015B-EN-P - July 2013
Appendix C EtherNet/IP Objects
Instances
The number of instances depends on the maximum number of diagnostic items
in the device. The total number of diagnostic items can be read in Instance 0,
Attribute 2.
Class Attributes
Instance Attributes
Instances (Hex.)
(Dec.)
Device
Example
Description
0x0000…0x3FFF
0…16383
Host
0
Class Attributes (Drive)
0x4000…0x43FF
16384…17407
Adapter
1
Drive Diagnostic Item 1
0x4400…0x47FF
17408…18431
DPI Port 1
2
Drive Diagnostic Item 2
0x4800…0x4BFF
18432…19455
DPI Port 2
…
…
0x4C00…0x4FFF
19456…20479
DPI Port 3
16384
Class Attributes (Adapter)
0x5000…0x53FF
20480…21503
DPI Port 4
16385
Adapter Diagnostic Item1
0x5400…0x57FF
21504…22527
DPI Port 5
…
…
0x5800…0x5BFF
22528…23551
DPI Port 6
Attribute ID
Access Rule
Name
Data Type
Description
1
Get
Class Revision
WORD
1
2
Get
Number of Instances
WORD
Number of diagnostic items in the device.
3
Get
ENUM Offset
WORD
DPI ENUM object instance offset
Attribute ID
Access Rule
Name
Data Type
Description
0
Get
Full/All Information
STRUCT of:
BOOL[32]
CONTAINER
(1)
CONTAINER
CONTAINER
CONTAINER
WORD
WORD
STRING[4]
WORD
WORD
WORD
INT
DWORD
STRING[16]
Descriptor (see page
Value
Minimum value
Maximum value
Default value
Pad Word
Pad Word
Units (for example, Amp, Hz)
Multiplier
(2)
Divisor
Base
Offset
Link (source of the value) (0 = no link)
Diagnostic name text