Rockwell Automation 1203-GK5 DeviceNet Communications Module FRN 1.xxx-3.xxx - Manual (Page 116)

C-26 DeviceNet Objects (Class Code 0x99 — SCANport Pass-Through Link Object)
The table below lists parameters for Scattered_Link_Reference_Read
and Scattered_Link_Reference_Write object-specific services.
Important: The STRUCT may repeat up to 32 times in a single
message.
.
Name Data Type Description
Scattered Link Read/Write STRUCT of
Parameter Number WORD Parameter Link Reference to read or write.
Parameter Link Reference WORD Link Reference value to write (zero when reading).