Lake Shore 648, User Manual

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5.4 Command Summary 63
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DFLT Factory Defaults Command
Input
DFLT 99[term]
Remarks Sets all configuration values to factory defaults and resets the instrument. The instru-
ment must be at zero amps for this command to work. The “99” is included to prevent
accidentally setting the unit to defaults.
DISP Display Parameter Command
Input
DISP<brightness>[term]
Format n
<brightness> Specifies display brightness: 0=25%, 1=50%, 2=75%, 3=100%
DISP? Display Parameter Query
Input
DISP?[term]
Returned <brightness>[term]
Format n (Refer to command for definition)
ERCL Error Clear Command
Input
ERCL[term]
Remarks This command will clear the operational errors. The errors will only be cleared if the
error conditions have been removed. Hardware errors can never be cleared. Refer to
section 5.2.6.1 for a list of error bits.
ERST? Error Status Query
Input
ERST?[term]
Returned <hardware errors>, <operational errors>[term]
Format nnn,nnn
Remarks The integers returned represent the sum of the bit weighting of the error bits. Refer to
section 5.2.6.1 and section 5.2.6.2 for a list of error bits. Use the ERRCL command to
clear the operational errors. Hardware errors cannot be cleared.
ERSTE Error Status Enable Command
Input
ERSTE<hardware errors>, <operational errors>[term]
Format nnn,nnn
Remarks Each bit has a bit weighting and represents the enable/disable mask of the corre-
sponding error bits in the Error Status Register. This determines which status bits can
set the corresponding summary bits in the Status Byte Register. To enable an error bit,
send the command ERSTE with the sum of the bit weighting for each desired bit. Refer
to section 5.2.6.1 and section 5.2.6.2 for a list of error bits.
ERSTE? Error Status Enable Query
Input
ERSTE?[term]
Returned <hardware errors>, <operational errors>[term]
Format nnn,nnn (Refer to section 5.2.6.1 and section 5.2.6.2 for a list of error bits)