Set_param (sap61), Set_param, Sap61) – ProSoft Technology MVI56-PDPS User Manual
Page 35

Configuring the Module with RSLogix 5000
MVI56-PDPS ♦ ControlLogix Platform
Profibus DP Slave Communication Module
ProSoft Technology, Inc.
Page 35 of 88
April 22, 2008
2.7 Set_Param
(SAP61)
ProSoft PROFIBUS Slave (PDPS) devices have a configurable parameter for
SPC3 User Prm Byte. The following illustrations show the value of this parameter
in Sycon, the configuration tool for ProLinx PROFIBUS Master devices, and in
ProSoft Configuration Builder for PROFIBUS, the configuration tool for ProSoft
PROFIBUS Master devices.
Parameter Data Structure
SPC3 evaluates the first seven data bytes (without user prm data), or the first
eight data bytes (with user prm data). The first seven bytes are specified
according to the standard. The eighth byte is used for SPC3-specific
communications. The additional bytes are available to the application.
Byte Bit
Position
Designation
7 6 5 4 3 2 1 0
0 Lock
Reg
Unio
Req
Sync
Req
Free
Req
WD
on
Res Res Res Station
status