Unidrive M SI-PROFIBUS User Guide 83
Issue Number: 3
Safety
information
Introduction
Mechanical
installation
Electrical
installation
Getting
started
Parameters
GSD
Files
Cyclic data
Non-cyclic
data
Control and
status words
Diagnostics
PROFIdrive
profile (V4)
Advanced
features
Legacy
features
Glossary of
terms
Index
14.3 Configuring the Profile
To configure the profile to the required PPO mode use the following sequence:
•Set Pr S.01.014 to 16 to enable data alignment
•Set Pr S.01.008 to the required PPO profile PP01 to PP05 (5 to 9).
• Configure the mapping parameters as required
•Set mm.000 to Save parameters or 1000 and press the reset button.
• S.01.002 or Pr MM.007 set to On to reset SI-PROFIBUS
• Check Pr S.01.006 doesn't indicate a fault (see Table 6.4 on page 32 for
further details)
Save the drive parameters (refer to the relevant drive documentation for more
information).
14.4 Setting the non-cyclic mode (non-cyclic over cyclic)
Sending non-cyclic data over the cyclic channel can only be accomplished when the SI-
PROFIBUS module is set up for a Unidrive SP in compatibility mode (Pr S.01.031 = 2 or
3) and the correct GSD file loaded. The correct GSD file for the simulated drive (e.g.
SP_ _0672.GSD)
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 14.8 shows how to configure the non-cyclic over cyclic parameter (Pr S.01.030)
for the required non-cyclic mode.
Table 14.8 Non-cyclic over cyclic data modes
14.5 Mode 1 - CT Single Word mode
The CT Single Word (Mode 1) uses one cyclic channel for non-cyclic data. This non-
cyclic sub-protocol requires a specific sequence of four or six telegrams to implement
the parameter access. Each non-cyclic word or telegram is split into two bytes to
implement the sub-protocol. The high byte containing the control codes for each
telegram and the low byte containing the data for each telegram.
Pr S.01.002 or Pr MM.007 will automatically reset to Off when the process is complete.
After the PROFIdrive profile has been configured and the module reset, if no
configuration error is detected then the corresponding mapping parameters will be set
automatically by the master controller.
If the PROFIdrive profile has been configured after settings have already been made to
the cyclic data mapping parameters, the first two or three mapping parameters
(depending upon the PPO type chosen) will be over written.
Value Text Description
0 None
1 CTNC 1 Non-cyclic word (CT Single Word mode 1)
2 PPO defined 4 Non-cyclic words (PPO 4 Word mode 2)
By default cyclic data alignment is set to 32 bits, the CT Single Word non-cyclic channel
will be 32 bits wide (i.e. uses two words, and data must be transferred on the low word).
If cyclic data alignment is set to 16, the CT Single Word non-cyclic channel will revert to
16 bits and only use a single word.
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