Lake Shore Model 340 Temperature Controller User’s Manual
Remote Operation 9-31
DFLT Set To Factory Defaults
Input: DFLT 99
Returned: Nothing
Remarks: Sets all configuration values to factory defaults and resets the instrument. The 99 is required
to prevent accidentally setting the unit to defaults. May take some time; use the BUSY?
command to determine completion.
DIOST? Query Digital Input/Output Status
Input: DIOST?
Returned: <input bit weighting>, <output bit weighting>. Format: nnn,nnn[term]
Remarks: Returns the status of the digital input and output in bit weighting format.
DISPFLD Configure Displayed Field
Input: DSPFLD <field>, [<input>], [<source>]
Returned: Nothing
Remarks: Configures the displayed field.
<field> Specifies field to configure. Valid entries: 1 - 8.
<input> Specifies input to display in the field.
< source> Specifies input data to display. Valid entries: 1 = kelvin, 2 = Celsius,
3 = sensor units, 4 = linear data, 5 = minimum data, and 6 = maximum data.
Example: DSPFLD 2, A, 1[term] - Displays kelvin reading for Input A in display field 2.
DISPFLD? Query Displayed Field
Input: DISPFLD? <field>
Returned: <input>, <data source>. Format: ann,n[term]
Remarks: Returns the parameters for a displayed field. See the DISPFLD command for parameter
descriptions. <field> specifies which field to query. Valid entries: 1 - 8.
DISPLAY Configure Main Display Parameters
Input: DISPLAY [<number of fields>], [<contrast>], [<backlight enable>]
Returned: Nothing
Remarks: Configures the main display screen.
<number of fields> Specifies how many input fields to display.
<contrast> Specifies the display contrast percentage.
<backlight enable> Disables or enables the display backlight.
Example: DISPLAY 3, 60[term] - Displays 3 input fields and sets the contrast to 60%.
DISPLAY? Query Main Display Parameters
Input: DISPLAY?
Returned: <number of fields>, <contrast>, <backlight enable>. Format: n,nnn,n[term]
Remarks: Returns main display parameters. See the DISPLAY command for parameter descriptions.
DOUT Configure Digital Output Parameters
Input: DOUT [<mode>], [<bit weighting>]
Returned: Nothing
Remarks: Configures the parameters of the digital output.
<mode> Specifies the mode of the digital output. Valid entries: 0 = off, 1 = alarms,
2 = scanner, and 3 = manual.
<bit weighting> Specifies the manual digital output settings if <mode> is 3.
Example: DOUT 3, 21[term] - Manually sets digital output lines D1, D3, and D5 to logic high, and D2
and D4 to logic low.
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