Siemens SINAMICS PERFECT HARMONY GH180 Function Manual page 136

Profibus Communication
7.5 Planning/Configuring
The GSD file provides an option for 136 bytes of input and output. If the configuration tool
cannot accommodate 136 bytes, the GSD file allows the choice of adding 8 or 16 bytes at a time,
until the correct quantity of input and output bytes are selected.
Note
To communicate with the drive, you must configure the Profibus™ controller to have the same
quantity of bytes that are set by parameter 'Network 1 I/O Size' (9951) or 'Network 2 I/O Size'
(9952).
134
NXGPro+ Communication Manual
Function Manual, AA, A5E50226719