Keysight E4990A - Page 652

E4990A Help
642
If no error is stored in the error queue, 0 and "No error" are read out as
the error number and the error message.
Examples
Dim Var As Variant, ErrNo As Long, ErrDesc As String
Ana.WriteString ":SYST:ERR?", True
Var = Ana.ReadList
ErrNo = Var(0)
ErrDesc = Var(1)
Related Commands
*CLS
Equivalent Softkey
No equivalent key is available on the front panel.
COM Command Syntax (Internal Control Only)
SCPI.SYSTEM.ERROR
:SYST:KLOC:KBD
Type
Command/Query
Syntax
:SYSTem:KLOCk:KBD {ON|OFF|1|0}
:SYSTem:KLOCk:KBD?
Description
This command sets/gets whether to lock the operation of the front panel
(key and rotary knob) and keyboard.
Variable
Parameter Selection Option
Description ON/OFF of lock
Data Type Boolean type (Boolean)
Range ON|OFF|1|0
Preset Value OFF
Query Response
{1|0}<newline><^END>
Examples
Dim Var as Integer
Ana.WriteString ":SYST:KLOC:KBD ON", True