Leica Geosystems GPS System 500 - Technical Reference Manual - Manual (Page 249)

249 9. The CONFIG Key Technical Reference Manual-4.0.0en
Use - Choose Yes to output the
message.
Output Time - A message may be
sent either at an exact epoch or
immediately.
At Epoch means that the message
will be sent at the exact epoch as
defined by the Rate.
Immediately means that the
message is sent as soon as it is
available
Output Delay - If the message is sent
At Epoch, then additionaly the
message may be delayed before it is
output through the chosen port. The
time of delay can be a value up to the
rate at which the message is output.
This may be useful if 2 or more
sensors are being used to monitor the
position of an object. The position of
each sensor is being output as a
NMEA message back to a master
control station. The control station
may not be able to cope with all the
positional data messages if all
sensors were sending their position
message back at exactly the same
time (as would be the case with
Immediately). In this case the
second and third sensor could delay
their output so the control station
receives the message from each
sensor at a slightly different time.
A full description of each NMEA
message is given in Appendix E.
9.12 Interfaces - ASCII Input
The ASCII Input interface enables
you to configure port and device, from
which you want to receive and store
ASCII strings from external devices
such as depth sounders, barometers,
digital cameras, pipe detectors,
Geiger counters etc.
The ASCII strings are stored as point
annotations together with the next
point measured.
Point annotations for
auto logged points are only stored
when Store Pt DB and Use Annot in
panel CONFIGURE\ Position Logging
are set to YES. For detailed
information see section 5.4.
The port (1, 2 or 3) and the device are
displayed. Set the focus on ASCII
Input and press EDIT (F3) to modify
the ASCII Input device.