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8.4.1
DP-V1 Parameter Access
Drive parameters (and PROFIdrive PNUs) can be accessed using the PROFIdrive
Parameter Channel, the global slot number 0 and slot sub-index 47. This is illustrated in
Figure 8-1.
DP-V1 slot numbers 1 and 2 are also allowed.
NOTE
The PROFIdrive PNUs will be accessible using functions available in the master.
NOTE
Figure 8-1 DP-V1 Parameter Channel
DP-V1
Slot
0
The parameter channel requires a parameter index and subindex to access parameters.
Drive parameters can be accessed by placing the result of the equation
10000 + (MM * 100) + PP in the parameter Index field of the PROFIdrive request, the
sub-index field is always set to 0.
For example, Pr 1.21 (Preset Reference 1) would be entered as
10000 + (1 * 100) + 21 = 10121.
PROFIdrive Parameters (PNUs) can be accessed by placing the PNU number in the
parameter index field and if the PNU data type is an array, then the sub-index field may
also be specified.
8.5
Setting the non-cyclic mode (non-cyclic over cyclic)
The term 'non-cyclic over cyclic' is used to refer to non-cyclic data which is transmitted
as part of the cyclic data and not using the non-cyclic DP-V1 channel.
Table 8.2 shows how to configure the data mode (Pr MM.05) for the required non-cyclic
mode. The value in this parameter is formed using three digits, the most significant of
these determines the non-cyclic mode. The two least significant digits (CC) determine
the number of cyclic words for both IN and OUT data.
Table 8.2 Non-cyclic over cyclic data modes
Non-cyclic mode
Disabled
Mode 1
Mode 2
Figure 8-2 shows the relationship between the value entered in Pr MM.05 and the cyclic
and non-cyclic data set-up.
SM-PROFIBUS DP-V1 User Guide
Issue : a
DP-V1
Slot Index
47
255
Value For Mode
0
1
2
www.leroy-somer.com
PROFIdrive Parameter Channel
PROFIdrive PNU
900
to 999
Drive
Parameters
10000 MMPP
+
Format
None
CT Single Word
PPO 4 Word
PROFIdrive
PNU Sub
-index
0 to 65535
Pr MM.05
0CC
1CC
2CC
31
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