DAPL Data Management Commands

Data management commands copy, remove, merge, or separate values from data streams. Processing configurations typically use one data copy command to transfer data channels to a host application.

The following commands copy data streams.

COPY

Copy data from one pipe to another for intertask communication or data transfers.

LCOPY

Copy sampled data in channel list groups for reduced latency at the expense of efficiency.

REPLICATE

Expand individual values into multiple copies in a new data stream.

COPYVEC

Make repeated copies of vector contents to a data stream.

The following commands remove unneeded data.

SKIP

Selectively remove data in a repeating pattern from a data stream.

EXTRACT

Extract the values from a single bit on the digital port.

The following commands combine data streams.

MERGE

Combine values from multiple streams in collating sequence.

MERGEF

Combine values from multiple streams in arbitrary order, prefixing each value with a source identifier tag.

BMERGE

Combine values as with MERGE, but take data in fixed-size blocks.

NMERGE

Combine values as with BMERGE, but specify a separate block length for each data source.

BMERGEF

Combine values as with MERGEF, but take data in fixed-size blocks, with one source identifier tag per block.

The following commands strip apart merged data streams.

SEPARATE

Separate data values in collating sequence, undoing the effects of a MERGE command.

SEPARATEF

Separate tagged data values in arbitrary sequence, as indicated by source identifier prefixes, undoing the effects of a MERGEF command.