Rockwell Automation 1336-GM6 Enhanced DeviceNet Communications Module - Manual (Page 131)

DeviceNet Objects C-23
Class Code 0x99 — SCANport
Pass-Through Link Object The SCANport Pass-Through Link Object lets you perform a
scattered read or write of a number of links or a single read or write of
a link.
Class Attributes
Instance Attributes
An instance in this class is the number of a parameter that is to get its
value from another parameter.
Common Services
Object-Specific Services
Attribute ID Access Rule Name Data Type Description
0 Set Link Command BYTE 1 = Clear all links.
1 Get NVS Link Diagnostic Value WORD Checksum.
Attribute ID Access Rule Name Data Type Description
0 Set Parameter Link Reference ➀ WORD
➀ The Parameter Link Reference value is the number of the parameter whose value is to be transferred.
Service Code
Implemented for:
Service Name
Class Instance
0x0E Yes Yes Get_Attribute_Single
0x10 Yes Yes Set_Attribute_Single
Service Code
Implemented for:
Service Name
Class Instance
0x32 Yes No
Scattered_Link_
Reference_Value_Read
➀
0x34 Yes No
Scattered_Link_
Reference_Value_Write
➀
➀ Must be directed to Attribute 0, Instance 0.