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SERIES
9900
0108
0107
D106 D105
D104 D103 DI02
D101
0
0
0
0
0
0
0
1
35
9000
SERIES
GAUSSMETERS
SECTION V continued
Remote (Slave) Mode Operation
The gaussmeter will not accept any new commands until the present
commands have been executed. When the final command has been
executed, the gaussmeter will transmit the command string back to the
remote device.
The echoed string will contain all received characters
except
the initiator <ESC>. Thus, if the command string sent to the gaussmeter
looked like this:
<ESC>RA24<CR>
the string sent back will look like this:
RA24<CR>.
The
reception of the echoed command string indicates to the remote device
that all commands were executed and the gaussmeter is ready to accept a
new set of commands. In some cases the contents of the returned
commands will contain information pertinent to the requested operation,
such as the execution status of the PROBE ZERO operation or the value of
the relative field in the PROBE RELATIVE operation. See Section V-B.
The gaussmeter checks each command for validity before it is executed. If
the gaussmeter detects a command containing errors, whether due to a
transmission error or a programming error,
the gaussmeter will terminate the
command string processing.
However, all commands previous to the one with
errors will be executed. In this situation, the gaussmeter will transmit an
abbreviated version of the original command string back to the remote
device, ending at the point where the error was detected. This string, then,
can be used to pinpoint errors in the user's program or to verify that all
commands were indeed executed.
For example, the following command string contains an error:
<ESCA1012DI1131RA16<CR>.
In the DISPLAY FORMAT command (DI1131), the "3" is not a valid selection.
In this case, the gaussmeter will execute the MODE command, terminate
processing and send back the following string:
M012D1113<CR>
indicating that the MODE SELECTION command was executed but the
DISPLAY FORMAT and RANGE SELECTION commands were not, due to an
error in the DISPLAY FORMAT command.
V-E I E E E -488 IMPLEMENTATION
See Section VI for electrical information on the IEEE-488 bus.
When the gaussmeter is busy executing commands, performing diagnostics
or recalibrating internal circuits, the serial poll register's D101 bit will be set and
all other bits reset as follows: