Assembly Object

Overview

The assembly object consists of the attributes and services. Assembly instances exist only when you configure local slaves for the Ethernet communications module.

You can send an explicit message to the assembly object only when no other connections have been established that read from or write to this object. For example, you can send an explicit message to the assembly object if a local slave instance is enabled, but no other module is scanning that local slave.

Class ID

Instance IDs

The assembly object presents these instance identifiers:

0: class
101, 102, 111, 112, 121, 122, 131, 132, 136, 137, 141, 142, 146, 147, 151, 152, 156, 157, 161, 162, 166, 167, 171, 172, 176, 177, 181, 182, 186, 187, 191, 192: instance

Attributes

The assembly object consists of these attributes:

Instance ID = 0 (class attributes):

Attribute ID	Description	GET	SET
01	Revision	X	—
02	Max Instance	X	—
03	Number of Instances	X	—
X = supported — = not supported

Instance attributes:

Instance ID	Attribute ID	Description	Type	GET	SET
101	03	Local slave 1: T->O (output data)	Array of BYTE	X	—
102	03	Local slave 1: O>T (input data)	Array of BYTE	X	—
111	03	Local slave 2: T->O (output data)	Array of BYTE	X	—
112	03	Local slave 2: O>T (input data)	Array of BYTE	X	—
121	03	Local slave 3: T->O (output data)	Array of BYTE	X	—
122	03	Local slave 3: O>T (input data)	Array of BYTE	X	—
131	03	Local slave 4: T->O (output data)	Array of BYTE	X	—
132	03	Local slave 4: O>T (input data)	Array of BYTE	X	—
136	03	Local slave 5: T->O (output data)	Array of BYTE	X	—
137	03	Local slave 5: O>T (input data)	Array of BYTE	X	—
141	03	Local slave 6: T->O (output data)	Array of BYTE	X	—
142	03	Local slave 6: O>T (input data)	Array of BYTE	X	—
146	03	Local slave 7: T->O (output data)	Array of BYTE	X	—
147	03	Local slave 7: O>T (input data)	Array of BYTE	X	—
151	03	Local slave 8: T->O (output data)	Array of BYTE	X	—
152	03	Local slave 8: O>T (input data)	Array of BYTE	X	—
156	03	Local slave 9: T->O (output data)	Array of BYTE	X	—
157	03	Local slave 9: O>T (input data)	Array of BYTE	X	—
161	03	Local slave 10: T->O (output data)	Array of BYTE	X	—
162	03	Local slave 10: O>T (input data)	Array of BYTE	X	—
166	03	Local slave 11: T->O (output data)	Array of BYTE	X	—
167	03	Local slave 11: O>T (input data)	Array of BYTE	X	—
171	03	Local slave 12: T->O (output data)	Array of BYTE	X	—
172	03	Local slave 12: O>T (input data)	Array of BYTE	X	—
176	03	Local slave 13: T->O (output data)	Array of BYTE	X	—
177	03	Local slave 13: O>T (input data)	Array of BYTE	X	—
181	03	Local slave 14: T->O (output data)	Array of BYTE	X	—
182	03	Local slave 14: O>T (input data)	Array of BYTE	X	—
186	03	Local slave 15: T->O (output data)	Array of BYTE	X	—
187	03	Local slave 15: O>T (input data)	Array of BYTE	X	—
191	03	Local slave 16: T->O (output data)	Array of BYTE	X	—
192	03	Local slave 16: O>T (input data)	Array of BYTE	X	—
X = supported — = not supported

Services

The CIP assembly object performs these services upon the listed object types:

Service ID		Description	Class	Instance	Notes
hex	dec	Description	Class	Instance	Notes
0E	14	Get_Attribute_Single	X	X	Returns the value of the specified attribute
10	16	Set_Attribute_Single1	—	X	Returns these values: 0E=attribute not settable: assembly is not O->T type 0F=permission denied: assembly is being used by an active connection 13=config too small: the Set_Attribute_Single command contains partial data 15=data too big: the Set_Attribute_Single command contains too much data
X = supported — = not supported
1. When valid, the size of the data written to the assembly object using the Set_Attribute_Single service equals the size of the assembly object as configured in the target module.