Martel Electronics BetaGauge 321A User Manual
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module port on the right side of the calibrator and the DB-9 connector to the RS-232 port
on the computer. The calibrator should be turned off prior to making the connection and
then turned on.
To set up remote operation of the calibrator on the Windows Hyper Terminal, connected
to a COM port on the PC as in Figure 23, use the following procedure:
1.
Start Hyper Terminal (located in Accessories/Communications of the Windows Start
menu)
2.
Select New Connection.
3.
For Name enter Beta 311A/321A. Select the serial port that the calibrator is connected
to.
4.
Enter the above information for port settings.
5.
Select ASCII setup from File/Properties/Settings and mark these choices:
Echo typed characters locally
Wrap lines that exceed terminal width
6.
Select Ok
7.
To see if the port works enter *IDN?. This command will return information on the
calibrator.
12.3 Changing Between Remote and Local Operation
There are three modes of operation of the calibrator, Local, Remote, and Remote with
Lockout. Local mode is the default mode. Commands may be entered using the keypad
on the calibrator or using a computer. In Remote mode the keypad is disabled, and
commands may only be entered using a computer, but choosing [GO TO LOCAL] from
the menu on the calibrator display will restore keypad operation. In Remote with Lockout,
the keypad can not be used at all. To switch modes proceed as follows:
1.
To enable Remote mode, type in the serial command REMOTE at the computer
terminal.
2.
To enable Remote with Lockout, type in “REMOTE LOCKOUT” in either order.
3. To switch back to local operation enter LOCAL at the terminal. This command also
turns off LOCKOUT if it was on. For more information on commands refer to the
Remote Commands section.
12.4 Using Commands
12.4.1 Command types
Refer to the Section 10.5 on Remote Commands for all available commands.
The calibrator may be controlled using commands and queries. All commands may be
entered using upper or lower case. The commands are divided into the following
categories:
Calibrator Commands
Only the calibrator uses these commands. For example
VAL?
asks for the values displayed on the calibrator display.
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