Remote Commands
Summary of Commands and Queries
6
6-47
VAL?
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Thermocouple Measurement Value command) Return the last value of the
thermocouple temperature measurement. The unit returns indicates the status of the
reading.
Responses: <measurement value>, CEL (value is in Celsius)
<measurement value>, FAR (value is in Fahrenheit)
0.00E+00,OVER (value is over or under capability)
0.00E+00,OPENTC (open thermocouple)
0.00E+00,NONE (wrong mode or no measurement)
Example: VAL? returns 0.00E+00,NONE
Return 0 and NONE when there is no recent thermocouple measurement either because
the 5500A Calibrator is not in the thermocouple measurement mode, or because no
measurement has been made yet.
VVAL?
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Thermocouple Measurement Voltage command) Return the last value of the
thermocouple temperature measurement in volts. If the last measurement was an
overload or open thermocouple condition, or there is no measurement, return 0E+00.
Responses: <measurement value in volts> (valid measurement)
0E+00 (overload, open TC, or no measurement)
Example: VVAL? returns 1.1047E-03 (1.1047 mV, equivalent to 50°C with type K
thermocouple and TC reference = 23.0°C
*WAI
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Wait-to-Continue command) Prevent further remote commands from being executed
until all previous remote commands have been executed. For example, if you send an
OUT command, you can cause the 5500A Calibrator to wait until the output has settled
before continuing on to the next command if you follow OUT with a *WAI command.
The *WAI command is useful with any overlapped command, preventing the 5500A
Calibrator from processing other commands until the overlapped command is processed.
Example: *WAI
Process all existing commands before continuing.
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