Lakeshore 642 User Manual page 84

DFLT
Factory Defaults Command
Input: DFLT 99[term]
Sets all configuration values to factory defaults and resets the instrument. The instrument must be at
Remarks:
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]
n
Format:
<brightness>
DISP?
Display Parameter Query
Input: DISP? [term]
Returned: <brightness> [term]
n
Format:
ERCL
Error Clear Command
Input: ERCL [term]
This command will clear the operational errors. The errors will only be cleared if the error conditions
Remarks:
have been removed. Hardware errors can never be cleared. Refer to Paragraph 5.1.4.3 for a list of error
bits.
ERST?
Error Status Query
Input: ERST? [term]
Returned: <hardware errors>, <operational errors> [term]
nnn,nnn
Format:
The integers returned represent the sum of the bit weighting of the error bits. Refer to
Remarks:
Paragraph 5.1.4.3 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]
nnn,nnn
Format:
Each bit has a bit weighting and represents the enable/disable mask of the corresponding error bits in
Remarks:
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 Paragraph 5.1.4.3 for a list of error bits.
ERSTE?
Error Status Enable Query
Input: ERSTE?[term]
Returned: <hardware errors>, <operational errors> [term]
nnn,nnn
Format:
5-32
Lake Shore Model 642 Electromagnet Power Supply User's Manual
Specifies display brightness: 0 = 25%, 1 = 50%, 2 = 75%, 3 = 100%.
(Refer to command for definition).
Refer to Paragraph 5.1.4.3 for a list of error bits.
Computer Interface Operation