How to record the boot-up messages from a digitiser
If you suspect problems with digitiser operation or configuration, including GPS/GNSS problems, Güralp support may request that you send a status recording illustrating the problem. This page describes the sequence of actions required in order to make an effective, complete recording of the boot-up messages from a Güralp CD24 or DM24 digitiser.
- Connect the digitiser to a PC running Scream and power it up.
- Wait until the digitiser's icon appears in Scream’s main window, if it is not there already.
- In the main window, check that the status stream (which ends in
00) has appeared. If it is not present, wait
until it appears. Once it has appeared, ensure that the word
Yes appears in the Rec
column for this stream and, if not, right-click the stream and select
- Set Scream to record streams into an empty directory, by choosing
File→Setup→Files and entering an appropriate path in the field:
- Power-cycle the digitiser. (This generates a lot of useful configuration and diagnostic information in the status stream.)
- Wait for sixty minutes. This allows time for the digitiser to produce all of its boot-up status messages, for the GPS/GNSS synchronisation process to complete and for the timing sub-system to settle down.
- Right-click on the digitiser icon and select “Terminal”:
A terminal window should open.
- Key ENTER a few times to get the digitiser’s attention, then enter the command FLUSH-STATUS
- Enter the command GO – the terminal window
- In Scream’s main window, right-click the word Yes in the Rec column for the status stream and select "Stop recording": this flushes any outstanding buffered data to the disk.
- View the files in the recording directory to check that the status
stream recording is present.
- If your status stream recording is present, you can double-click it to
read it in your favourite text editor: