Rockwell Automation MD65 Profibus Communication Card - Manual (Page 58)

7-4 PROFIBUS Communications Module
7.3.1 Parameter Message Request
Table 7.1 – Parameter Message Request Data
Word Description
1 PNU - Parameter Number (Bit 0-10)
The parameter number determines which parameter to
access in the selected peripheral. Parameters 1-1023 can
be accessed.
Parameter numbers 1024 - 2047 are used to access the
fault object. Parameter 1024 is equal to the latest fault, 1025
to the prior fault, and so on.
Bit Definitions
1-1023 Parameters (Drive or Module)
1024 Module Fault Code
1025-1056 Module Events
1280-1289 Diagnostic Items (Single Drive)
1280-1304 Diagnostic Items (Multi-Drive)
SPM - Spontaneous Message (Bit 11)
Reserved - Should always be set to 0.
RC - Request/Response Code (Bit 12-15)
One of the following codes have to be used:
0 = No request
1 = Request parameter value
2 = Change parameter value (8-bit & 16-bit word)
3 = Spare
4 = Parameter minimum
5 = Parameter maximum
6 = Default Value
7 - 15 = Reserved