R&S FSL  SCPI–Specific Error Messages 
1300.2519.12 9.1  E-11 
9 Error Messages 
Error messages are entered in the error/event queue of the status reporting system in the remote 
control mode and can be queried with the command SYSTem:ERRor?. The answer format of R&S FSL 
t
o the command is as follows: 
 
<error code>, "<error text with queue query>;  
<remote control command concerned>" 
 
The indication of the remote control command with prefixed semicolon is optional.  
 
Example: 
 
The command "TEST:COMMAND" generates the following answer to the query SYSTem:ERRor?  
–113,"Undefined header;TEST:COMMAND" 
 
The subsequent lists contain the description of error texts displayed on the instrument.  
Distinction is made between error messages defined by SCPI, which are marked by negative error 
codes, and the device–specific error messages for which positive error codes are used: 
• SCPI–Specific Error Messages 
• Device–Specific Messages 
The right–hand column in the following tables contains the error text in bold which is entered in the 
error/event queue and can be read out by means of query SYSTem:ERRor?. A short explanation of the 
error cause is given below. The left–hand column contains the associated error code.  
Additionally, option–specific warnings and error messages displayed in the status bar are explained. 
 
SCPI–Specific Error Messages 
Table 9–1  No Error 
Error code 
Error text in the case of queue poll 
Error explanation 
0
No error 
This message is displayed if the error queue does not contain any entries. 
Table 9–2  Command Error – Faulty command; sets bit 5 in the ESR register. 
Error code  Error text in the case of queue poll 
Error explanation 
–100 
Command Error 
The command is faulty or invalid. 
–101 
Invalid Character 
The command contains an invalid sign. 
Example: A header contains an ampersand, "SENSe&".