Data Configuration; Gsd Compatibility - Leroy-Somer digitax st User Manual

6.3

Data configuration

The GSD file describes the modules of input or output words that may be combined to
configure the input and output configuration for a specific node. The complete input and
output configuration for the node is built by adding the required modules until all of the
node's inputs and outputs are defined.
A module consists of a block of input or output data. Put simply this is a logical collection
NOTE
of data words.
If non-cyclic data is required and the DP-V1 non-cyclic channel is not used then the non-
cyclic CT Single Word and/or the PPO 4 Word modules must be selected. A total of
eight different modules can be selected to configure the input and output configuration
of the node.
The number of input or output words configured in the drive must match the number of
input or output words defined in the master; if the master has eight IN and four OUT
words the drive must use the same settings to communicate correctly.
The SM-PROFIBUS DP-V1 module uses Pr MM.05 to set the number of input and
output words (16-bit) where there are the same number of input and output words,
alternatively Pr MM.39 and Pr MM.40 may be used to independently set the number of
input and output words. See section 12.8 Custom data formats for more details.
The definition of a data word is 16-bits. By default SM-PROFIBUS DP-V1 casts all data
NOTE
as long words/ double words (32-bits), data compression can be used to reduce this size,
see section 12.5 Cyclic data compression for more information.
6.4

GSD compatibility

For Profibus DP-V1 features to be available to the PLC, the appropriate DP-V1 GSD file
must be installed and the drive configured in the master PLC as a 'DPV1' slave.
If a DP-V0 GSD file is installed then the DP-V1 features of SM-PROFIBUS DP-V1 will
not be available.
SM-PROFIBUS DP-V1 User Guide
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