Rockwell Automation 1203-GK5 DeviceNet Communications Module FRN 1.xxx-3.xxx - Manual (Page 115)

DeviceNet Objects (Class Code 0x99 — SCANport Pass-Through Link Object) C-25
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
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
➁ WORD
Important: An instance in this class is the number of a parameter that is to get its value from another parameter.
➁
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
0x01 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.