User manual SEFELEC 5x Series  179   v1.06 
 
 
*CLS 
 
 Positions all standardized registers in the state in which the user finds them at power 
on. 
 
*RST 
 
Performs a reset of the device. 
WARNING: The unit returns to Local mode, regain control of the device with the 
REM command before any other command. 
18.1.3.  STANDARDIZED QUERIES 
 
*STB?  
 
 Returns to the NR1 format and in the hexadecimal base the value of the "STB" register 
(e.g.: "#H80"). 
 
0 = no error 1 = error (incorrect voltage, etc.) 
0 = End of test 1 = Test In Progress 
0 = Test FAIL 1 = Test PASS 
Or Logic of the bits of the ESR Register 
Or Logic of the bits of the STB Register 
 
*SRE?  
 
 Returns to the NR1 format and in the hexadecimal base the value of the "SRE" register 
(STB register mask) 
 
*ESR? 
 
 Returns to the NR1 format and in the hexadecimal base the value of the register "ESR"  
 
1 = type 2 dialogue error (digital value outside limits, command out of context) 
1 = type 1 dialogue error (incorrect syntax) 
1 = Switching on the power  
 
Note: The bits are reset after reading by the *ESR? command.