Guralp Systems CMG-3ESPCD - Manual (Page 73)

CMG-3ESPCD Digital Broadband Seismometer Command line interface
first; the digitiser will only transmit the next block when it receives an
acknowledgement of the previous block.
6.7.6 DOWNLOAD
Syntax: DOWNLOAD
Sets up a data transfer from the Flash memory over the serial connection.
Which data are downloaded depends on various parameters you can set,
which allow you to select a particular stream, streams of a specified sample
rate, or streams within a certain time window. You can set parameters
separately, or string the definitions before the DOWNLOAD command, e.g.
ALL-FLASH STREAM HPA0N1 DOWNLOAD
2004 12 01 00 00 FROM-TIME ALL-DATA DOWNLOAD
100 S/S ALL-TIMES DOWNLOAD
DOWNLOAD with no arguments starts another download with the same
parameters as last time. See below for full details of the parameter
commands.
The DOWNLOAD command returns immediately, so that you can issue more
commands if required. To close the connection and begin downloading, issue
the GO command. You can pause the download by entering terminal mode,
and restart with another GO or abort with END­DOWNLOAD.
6.7.7 ALL-FLASH
Syntax: ALL­FLASH
Sets the read point to the oldest data held by the digitiser. This command
does not alter which streams are to be transmitted; you should specify streams
or use the ALL­DATA command in addition to this one.
6.7.8 ALL-DATA
Syntax: ALL­DATA
Instructs the digitiser to transmit all the data streams it holds next time a
DOWNLOAD is issued. This command does not alter the read point or time
period; you should specify a time period or use the ALL­FLASH command in
addition to this one.
6.7.9 STREAM
Syntax: STREAM stream­id (n.b.)
Instructs the digitiser to transmit only the stream with ID stream­id.
Stream IDs are normally a 4-character device code (e.g. HPA0) followed by a
MAN-C3E-0002 73 Issue B - November 2013