Rockwell Automation MD65 Profibus Communication Card - Manual (Page 59)

Using Explicit Messaging (Parameter Protocol) 7-5
7.3.2 Parameter Message Response
2 IND - Index
The IND is used to specify which drive will receive a
message.
0-2 bits = MDI port
Bit Definitions
000 Drive 0 single drive mode
001 Drives 0-1 multi-drive mode
010 Drives 0-2 multi-drive mode
011 Drives 0-3 multi-drive mode
101 Drives 0-4 multi-drive mode
3 - 15 = Reserved
3 PVA - Parameter value
Spare
4 PVA - Parameter value (8-bit & 16-bit word).
Read Request: Not used
Write Request: Contents the write value for a 8-bit or 16-bit
parameter.
Table 7.1 – Parameter Message Request Data
Word Description
Table 7.2 – Parameter Message Response Data
Word Description
1 PNU - Parameter Number (Bit 0-10)
Requested parameter number.
SPM - Spontaneous Message (Bit 11)
Reserved - is always set to 0.
RC - Request/Response Code (Bit 12-15)
One of the following codes will be sent:
0 = No request
1 = Transfer parameter value (8-bit & 16-bit word)
2 = Spare
3-6 = Reserved
7 = Request rejected (including Module Fault Code and
Parameter Message Fault Code, see table below)
9-15 = Reserved