BECKHOFF BC3150 - Manual (Page 40)

Safety Instructions
38 Fieldbus Components
Master Configuration
Basic Device File (GSD)
All field devices with PROFIBUS slave interface are described via the GSD file. The BC3150 is a PROFIBUS DP
slave. For data exchange, the GSD file has to be inserted in the master configuration tool. The maximum length of
input and output data 128 bytes in each direction.
Download GSD file (German):
Download GSD file (English):
The GSD file can describe the following data types:
Variable Length
Integer 8 1 byte
UnInteger 8 1 byte
Integer 16 2 bytes
UnInteger 16 2 bytes
Integer 32 4 bytes
UnInteger 32 4 bytes
Float 32 4 bytes
Data types that are not listed, e.g. BOOL variables, can be described via the length. For this purpose, the GSD file
includes configuration data starting with a byte and ending with 64 words.