Geometrics G-858BP User Manual

G-858BP Backpack Mag Operators Manual
Serial Port (Use COM 1 as:)
There are several options for the use of COM 1 as follows:
SIMULATED KEYBOARD
ASCII CHARACTER LOGGER
GEOMETRICS MODULE LOGGER
FRAMED BINARY LOGGER
RAW BINARY LOGGER
EM-61 WITH MAGNETOMETER
EM-61 LOGGER
The "SIMULATED KEYBOARD" mode allows COM1 to appear as an external keyboard, in
which case ASCII characters are interpreted as keypad presses. Using your favorite communication
package on your PC, you can send key presses to the G-858BP. The built-in Microsoft Windows accessory
Terminal works fine. See the section below How to Download Commands from the PC.
The "ASCII CHARACTER LOGGER" mode is used to log RS-232 strings are stored in memory
as they come in through the COM 1 port. Up to three numbers from COM1 may also be displayed while
acquiring data. The display of these numbers may be configured in the "CONFIGURE" line that appears
below the " ASCII CHARACTER LOGGER" entry in the scroll list. None to three numbers may be
selected and each number may be independently adjusted for bias, scale and 0 to 3 decimal places to
display.
The "GEOMETRICS MODULE LOGGER" mode is used to log data from all products that
comply with the "GEOMETRICS MODULE" format. These include the CM201, the CM221, the G880,
the G881 and the OhmMapper. Readings from these can be used in place of the G859's sensors. The
display of these numbers may be configured in the "CONFIGURE" line that appears below the
"GEOMETRICS MODULE LOGGER " entry in the scroll list. Up to two numbers with decimal points
may be detected and logged as magnetometer field values. Zero to three numbers may be selected and each
number may be independently adjusted for bias, scale and 0 to 3 decimal places to display.
The "FRAMED BINARY LOGGER" mode is currently only used with the MineLabs EM system.
The readings from this are used in place of the G859's sensors.
The "RAW BINARY LOGGER" mode would only be needed if what is being received is binary
data of a format other than "FRAMED BINARY". Each received byte is simply converted into two
hexidecimal digits "0..F" and stored.
The "EM-61 WITH MAGNETOMETER" mode allows an EM-61 to be connected and logged as
ASCII while a magnetometer sensor is also connected. The odds of an EM-61 not interfering with the
magnetics measurement are very near zero, but if it can be done, the G859 is ready for it. The EM-61's
battery voltage will be displayed as described below. The logging of the EM-61 may be configured in the
"CONFIGURE" line that appears below the "EM-61 WITH MAGNETOMETER" entry in the scroll list.
When cycling is set to "G859 timing", the EM-61 will be
commanded to cycle by the G859. The command will be sent at
the rate specified by the G859's cycle time setting.
The EM61 system has a built in encoder on one of its wheels.
If you wish to use this you should select the "wheel
encoder" option here. The cycle time setting of the G-858BP
will only serve as a time out time for receiving data from
the EM-61. The EM-61 will send its data based on the
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Geometrics G-858BP Specifications

General

Brand	Geometrics
Model	G-858BP
Category	Measuring Instruments
Language	English