December 2019 95 LDC-3706 Series Laser Controller
Error Messages
Error messages may appear on the LDC-3706 instrument display when error conditions occur in
the instrument. In remote operation, use SYST:ERR:ALL? to read the current error list. The
SYST:ERR? query returns a string containing the next error message that is in the error
message queue.
Error Code Tables
The error codes are classified and placed in tables corresponding to their classification. The
classifications are Command Errors, Execution Errors, Device Errors, Query Errors and
Instrument Specific Errors.
Table 5.1 – Error Code Classifications
Error Code Range Area of Operation
[-199, -100] Command Error
[-299, -200] Execution Error
[-399, -300] Device-Specific Error
[-499, -400] Query Error
[400, 499] TEC Control Errors
[500, 599] Laser Control Errors
Note: Error codes not listed are reserved for future design use.
Table 5.2 – Error Messages
Error Code Explanation
-104 Data type error.
-109 Command is missing a parameter.
-113 Undefined command header.
-120 General numeric data error.
-130 General suffix error.
-150 General string data error.
-203 Command is protected and cannot be called.
-220 Error with parameter during execution.
-221 A settings conflict has occurred.
-222 Data out of range.
-224 Illegal parameter value received.
-225 Execution ran out of memory.
-232 Data received is in an invalid format.
-313 Calibration memory has been lost.
-315 Configuration memory has been lost.
-320 A storage fault has occurred.
-321 The device is out of memory.
-340 The calibration procedure has failed.
-341 The calibration data entered is invalid.
-342 The measurement calibration has failed.
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