Model 1140A Commands; Source-Mode Commands And Queries - Ectron 1140A Instruction Manual

Because the Model 1140A gives priority to remote control over front-panel control, continuous
or nearly continuous remote commands will essentially lock out the front panel. Therefore, the
remote command stream must be stopped before the Model 1140A can be controlled from the
front panel.

MODEL 1140A COMMANDS

Ectron Corporation has developed commands that are unique to the Model 1140A. In general,
these commands control nearly all functions of the THERMOCOUPLE MENU, the INSTRUMENT
MODE MENU, and the OUTPUT MENU as well as the amplitude of the temperature or voltage
either being generated (SOURCE MODE) or measured (METER MODE). Table
commands that correspond to the aforementioned menus along with special commands as shown.
Either short commands (shown in capital letters only) or long commands (full words, shown in
mixed case) may be used. In reality, commands are not case-sensitive entering them either way.
Commands can be concatenated, but they must be limited to 128 bytes in length including any
required termination character. When concatenating commands, place a semicolon, which counts
as a byte, between the commands. For USB and Ethernet, a newline (ASCII 0x0A) must be sent
as a termination character. GPIB does not require a termination character as it uses hardware EOI
(End or Identify) for message termination.
Following are examples and discussion of the commands in Table 6-1.

Source-mode Commands and Queries

Set the Simulation Temperature :SOURce:TEMPerature:VALue {Temperature}
{Temperature} must be a valid numeric value representing a temperature for the
thermocouple type and system unit of measure currently in use. When the system
temperature unit of measure is changed, the Model 1140A will convert the simulation
temperature to the new unit of measure. For example if a temperature of 200°C is set, and
then the unit of measure is set to °F, the new source value will be 392.
Example: :SOUR:TEMP:VAL 200
Example: :SOUR:TEMP:VAL −23.45
Query the Simulation Temperature :SOURce:TEMPerature:VALue?
Returns the temperature value followed by the system temperature unit of measure as a
single character.
Example: :SOUR:TEMP:VAL? returns the value displayed, e.g. +200.00F.
Set the Source Voltage :SOURce:VOLTage:VALue {Voltage}
{Voltage} must be a valid numeric value representing a voltage within the range of the
Model 1140A, considering the current system voltage unit of measure and offset voltage.
Example: :SOUR:VOLT:VAL 1.456.
6-3
Remote Operation
6-1 shows the