Operation
A5-20 ENVI-MAG Manual
Remote operation
Remote Operation allows you to control the start of a measurement from a
remote computer. It also controls the output of the data output stream, on the
data output connector, while measuring in other modes.
To enable the remote control of your ENVI-MAG:
1. Connect the ENVI-MAG to the serial port of the controlling computer using
the RS-232 cable P/N 745 081.
2. Bring up the mag setup:display and initialize all appropriate
parameters as explained in earlier paragraphs.
3. Move the cursor to REMOTE:
4. Select! YES.
5. Press the “ESCAPE” key to return to the Main operating display.
6. Set up the BAUD rate as outlined under “Output setup” on page A6-8.
7. Send a ‘S’ (hex 53, dec 83) to initiate one reading. The spacing between
subsequent ‘S’ must be greater than the chosen duration.
8. A ‘CR’ character (hex 0D, dec 13) should be sent at least every 50 seconds if
the reading interval is longer than 1 minute to prevent the automatic power
down sequence.
9. Receive the data after the end of each reading in the following sequence:
▲ Time in decimal form,
▲ To ta l -f i e ld ,
▲ Noise,
▲ Gradient, if it has been enabled.
The unit still recognizes the “START” key while in
REMOTE, which may be
useful during installation.
Remote operation also controls the data output of a free standing magnetometer.
The above data stream is output at the end of each reading, if
REMOTE is
enabled. The
BAUD rate should be set to 1200 baud or higher, so the cycling
operation is not slowed down. If remote control is not required,
REMOTE
should be disabled to conserve power.
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