Rockwell Automation 56RF RFID System User Manual User Manual
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Rockwell Automation Publication 56RF-UM001A-EN-P - October 2011
Appendix B CIP Information
Assembly Object Class
Code 0x0004
The Assembly Object binds attributes of multiple objects, which allows data to or
from eachobject to be sent or received over a single connection. Controllers that
do not have the ability to create and establish a class 1 (scheduled) connection
can utilize the Assembly Object in a Message Instruction to obtain both the input
and output assemblies of the RFID interface.
The following services will be implemented for the Assembly Object:
Different connection instances are needed for each RFID interface based on the
model. These class 3 connection instances are different than the class 1 instances
used by a ControlLogix or CompactLogix processor due to the limitations within
the SLC and Micrologix for handling Send and Receive data.
Use the table below to determine the class 3 connection instance and Send /
Receive size for your unit:
Table 24 - Class 3 Connection Instances with size (in bytes)
Sevice Code
Implemented for:
Service Name
Class
Instance
0x0E
Yes
Yes
Get_Attribute_Single
0x10
No
Yes
Set_Attribute_Single
0x18
No
Yes
Get_Member
Cat. No.
Input
Size
Output
Size
Config
Size
56RF-IN-IPS12
120
64
130
64
103
16
56RF-IN-IPD22
121
116
131
124
109
20
56RF-IN-IPD22A
122
116
132
124
112
24