C
Error Messages
Error Number List
This appendix gives the error numbers and descriptions that are returned by the dc source. Error numbers are returned in two ways:
♦Error numbers are displayed on the front panel
♦Error numbers and messages are read back with the SYSTem:ERRor? query. SYSTem:ERRor? returns the error number into a variable and returns two parameters: an NR1 and a string.
The following table lists the errors that are associated with SCPI syntax errors and interface problems. It also lists the device dependent errors. Information inside the brackets is not part of the standard error message, but is included for clarification.
When errors occur, the Standard Event Status register records them as follows:
Bit Set
5
4
Error
Number
Error Code | Error Type | Bit Set | Error Code | Error Type |
Command | 3 | |||
|
|
| 1 thru 32767 |
|
200 thru | Execution | 2 | Query |
Table
Error String [Description/Explanation/Examples]
Command error [generic]
Invalid character
Syntax error [unrecognized command or data type] Invalid separator
Data type error [e.g., "numeric or string expected, got block data"] GET not allowed
Parameter not allowed [too many parameters]
Missing parameter [too few parameters]
Program mnemonic too long [maximum 12 characters] Undefined header [operation not allowed for this device] Invalid character in number [includes "9" in octal data, etc.] Numeric overflow [exponent too large; exponent magnitude >32 k] Too many digits [number too long; more than 255 digits received] Numeric data not allowed
Invalid suffix [unrecognized units, or units not appropriate] Suffix not allowed
89