28 Rockwell Automation Publication 842E-UM001C-EN-P - September 2016
Chapter 3 EtherNet/IP Overview
Assembly Object
The Assembly Object allows assembling of data attributes of other objects in
one single object. The 842E EtherNet/IP encoder supports only static
assemblies of attributes. For this reason, the number of instances is fixed.
10 Major Recoverable
Status
0 = No serious error
1 = Serious error that can be reset (device in error status)
0
11 Major Unrecoverable
Status
0 = No serious error
1 = Serious error that cannot be reset (device in error
status)
0
12…15 — Reserved 0000
Possible Combinations
Bit 4…7
Description
0000 Device in self-test
0001 Firmware update in progress
0010 At least one connection error
0011 No I/O connection established
0100 Configuration in nonvolatile memory (EEPROM) failed
0101 Serious error, bit 10, or bit 11 = 1
0110 At least one connection in the “Run” operating mode
0111 At least one connection exists, all in “Idle” operating mode
1000…1111 Reserved
Table 7 - Bits 4 of 7 of the Instance Attribute “Status”
Bit Name Description Default Value
Table 6 - Bits of the Instance Attribute “Status”
Service Code Service Description
01h Get_Attribute_All Returns the values of all attributes
0Eh Get_Attribute_Single Returns the values of one attribute
Table 8 - Class Services of the Assembly Object
Attribute ID Access Description Data Type Default Value
1 Get Object revision index UINT 0002h
2 Get Highest instance number within the class UINT 006Ah
3 Get Number of object instances in this class UINT 0007h
6 Get Highest existing class attribute ID UINT 0007h
7 Get Highest implemented instance attribute UINT 0004h
Table 9 - Class Attributes of the Assembly Object
IMPORTANT Class attributes 4 and 5 are not implemented.
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