Siemens SINUMERIK 840D sl Commissioning Manual page 296

Fundamentals
15.2 Transfer telegrams
Message frame types
The message frame length for communication with the drive must be defined in the hardware
configuration. The message frame length to be chosen depends on the axis functions
required, e.g., the number of encoders or DSC, or the functions in the drive used.
Note
If you change the message frame length of a drive component in HW config, you also must
adjust the selection of the message frame type in the configuration of the interface in the
NCK.
What types of message frames are available?
● Standard telegrams
● Manufacturer-specific telegrams
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The standard telegrams are structured in accordance with the PROFIdrive Profile V3.1.
The internal process data links are set up automatically in accordance with the message
frame number setting.
The manufacturer-specific telegrams are structured in accordance with internal company
specifications. The internal process data links are set up automatically in accordance with
the message frame number setting.
The following vendor-specific telegrams can be set via p0922:
– For axes (SERVO)
116 DSC with torque reduction, 2 position encoders, supplementary data (also
parameterization)
– For Control Unit
390 telegram without probe (for NX)
391 message frame for up to 2 probes (for NCU)
Commissioning Manual, 07/2007, 6FC5397-2AP10-3BA0
IBN CNC: NCK, PLC, drive