
Rockwell Automation Publication 520COM-UM001B-EN-E - March 2013 125
Appendix C
EtherNet/IP Objects
Appendix C presents information about the EtherNet/IP objects that can be
accessed using Explicit Messages. For information on the format of Explicit
Messages and example ladder logic programs, see Chapter 6
, Using Explicit
Messaging.
Supported Data Types
Object Class Code Page Object Class Code Page
Hex. Dec. Hex. Dec.
Identity Object
0x01 1 126 DPI Device Object 0x92 146 138
Assembly Object 0x04 4 128 DPI Parameter Object 0x93 147 141
Register Object 0x07 7 129 DPI Fault Object 0x97 151 147
Parameter Object 0x0F 15 132 TCP/IP Interface Object 0xF5 245 149
PCCC Object 0x67 103 135 Ethernet Link Object 0xF6 246 151
See the EtherNet/IP specification for more information about EtherNet/IP
objects. Information about the EtherNet/IP specification is available on the
ODVA web site (http://www.odva.org
).
Data Type Description
BOOL 8-bit value – low bit is true or false
BOOL[x] Array of n bits
CONTAINER 32-bit parameter value - sign extended if necessary
DINT 32-bit signed integer
INT 16-bit signed integer
LWORD 64-bit unsigned integer
REAL 32-bit floating point
SHORT_STRING Struct of: USINT length indicator (L); USINT[L] characters
SINT 8-bit signed integer
STRINGN Struct of: UINT character length indicator (W); UINT length indicator (L); USINT[W x L] string data
STRING[x] Array of n characters
STRUCT Structure name only – no size in addition to elements
TCHAR 8 or 16-bit character
UDINT 32-bit unsigned integer
UINT 16-bit unsigned integer
USINT 8-bit unsigned integer
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