Geometrics G-877, Руководство по эксплуатации

Страница: 33 / 49

4.0 APPENDIX A - TECHNICAL MANUAL for FIRMWARE
4.1 Notes on Startup for the G–877 Magnetometer for Installations Not using MagLogLite

If you are using Geometrics MagLogLite or MagLogNT please the following
information is not required for proper operation.
The G–877 Magnetometer communicates via RS-232. Measured Data, as
well as all control and setup commands are handled over this link.
To communicate with the G–877 Magnetometer, as a minimum, a "dumb" terminal
is required. The usual method to operate is with a computer running
at least a program such as Windows "Hyperterminal". This will allow all commands to be
transmitted and to capture data to a file. The usual system may also have
a logging software package, such as
MagLogLite

mentioned elsewhere in this manual. It
should be noted that the following information is not required for MagLogLite

or
MagLogNT

users and is supplied for developers of their own logging systems or for third
party software vendors.
--------------
IMPORTANT NOTE
-------------------
All communication to the G–877 Magnetometer
must be UPPER CASE LETTERS
--------------------------------------------------------------------
The following table lists the commands that are possible to transmit to the G–877 while it is
running:
Command Letter
Command Meaning Description
T
Tuning Allows Setting To Local Field
C Cycle Rate Sets Cycle Rate In Seconds
P Polarize On/Off Means Of Stopping Signal To
Observe System Noise
TA
Autotune On Engages Automatic Tuning
Q
Quit Stops Cycling To Get Into
Setup Menu (Hold Q Down Till
Cycling Stops)
The Following table lists the commands that may be transmitted to the G–877 while it is in the
Setup Menu (may be used for changing operating default settings):
M Mode of operation
G–877 MARINE MAGNETOMETER OPERATION MANUAL
33