X20 system modules • Other functions • X20CM4810
2202
X20 system User's Manual 3.10
4.26.2.6.3 Uploading buffers via FlatStream
4.26.2.6.3.1 General information
For information about FlatStream functionality, see section 4.26.2.6.1 "FlatStream communication" on page 2182.
Uploading buffers via FlatStream is only available on the module in Function model 0 - Standard and Function
model 1 - Fast master.
When requested (buffer FlatStream in Tx direction), the module's raw data buffers (raw signal and FFT) can be
transferred via the buffer FlatStream (Rx direction). However, this is only possible if the buffers are first locked on
the module with the settings RequestBufferLock01 = 1 and BufferLockValid01 = 1. It is important to note that the
module refreshes the data points of the buffer FlatStream every X2X Link cycle. Once the transmission is complete,
the buffer from the stream needs to be "reassembled" on the PLC.
4.26.2.6.3.2 Registers for the buffer FlatStream
The following registers are needed to upload buffers:
BufferInputSequence01
BufferRxByte01-05
BufferOutputSequence01
BufferTxByte01-04
This results in an InputMTU of 5 bytes and an OutputMTU of 4 bytes for the buffer FlatStream.
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