GSD Files

GSD files are required for integrating the PROFIBUS couplers in DP configuration tools.

GSD files can be found in the chapter Downloads for PROFIBUS

GSD Files 1:

Note regarding GSD file

The GSD file contains a maximum of 244 bytes of input, output and configuration data. These are the maximum values. Below are the default of values and the setting options.

DP buffer

Default

Maximum size

Inputs

128

244

Outputs

128

244

Diagnostic Data

64

64

Configuration data

64

244

The sizes can be adjusted through the PrmData. The length is changed in 8-byte steps.

Sample

If it is desired to increase the size of the input data, other sizes must be reduced to compensate.
If we have 20 x 4 channel KL3314 thermocouples, then in compact mapping we find 20 Bus Terminals * 4 channels * 2 bytes per channel = 20 * 4 * 2 = 160 bytes
160 bytes is larger than the 128 byte default figure - settings must therefore be modified.
Set PrmData byte 12 bits 4-7 to 15dec or 0xFhex, set byte for 37 to 160 (input data) and byte 38 to 96 (output data).