8.4.8.6 SYSTem:ERRor?
Returns a system error message if any arepresent in the system error queue.
SYST:ERR?
0,“No error”
Each error condition produces only one error message at a time. The error
queue may containup to ten messages. The messages are reported in the order
theyoccured. Reading a message from the queue removes the message so the
nextmessage can be read. If more than ten errors occur before being read, the
tentherror in the queue is -350,“Queue overflow” and all but the first nine er-
rors are discarded. All errors cause the Error Bit (ERR, bit 2) for the Status
BYTE Registerto be set. Refer to Troubleshooting section for the error
messages.
8.4.8.7 SYSTem:SNUMber?
Returnsthe instrument serial number.
SYST:SNUM?
A09002
If the serial number has not been set, a 0 is returned. The serial number is set at
the factoryand cannot be changed!
8.4.8.8 SYSTem:VERSion?
Returnsthe SCPI version number.
SYST:VERS?
1994.0
8.4.8.9 UNIT:TEMPerature?
Returns the system temperature units.
UNIT:TEMP?
C
The response iseither C for Celsius, F for Fahrenheit, or K for Kelvin.
8.4.8.10 UNIT:TEMPerature<unit>
Sets the system temperature units.
UNIT:TEMPC
The <unit>parameter is either C or CEL for Celsius, F or FAR for Fahrenheit,
or K or Kelvin for Kelvin. The *RST command sets the units to Celsius.
113
8 Digital Communications Interface
Commands