Guralp Systems CMG-3ESPCD User Manual
Page 57
CMG-3ESPCD Digital Broadband Seismometer
Using Scream!
instrument in FILING mode. This is useful, for example, in autonomous
installations connected by intermittent modem links. To enable this feature:
1. Choose File Setup... from Scream!'s main menu, and navigate to the
→
Recording pane.
2. Tick the Auto-upload on heartbeat check-box.
3. Click
. Using FILING mode with Auto-upload on heartbeat
ensures that Scream! receives all new data whenever it can, regardless
of the configuration of any devices between you and the instrument.
5.2.5.4 FIFO (First In First Out)
Syntax: FIFO
Instructs the digitiser to begin writing blocks to Flash memory as for FILING
mode, but also to transmit data to clients. Data are transmitted in strict order,
oldest first; the digitiser will only transmit the next block when it receives an
explicit acknowledgement of the previous block. If the communications link
is only marginally faster than the data rate, it will take some time to catch up
with the real-time data after an outage.
If you want data to be transmitted in real-time where possible, but are worried
about possible breaks in communication, you should use ADAPTIVE mode
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Issue B - November 2013