Stanford Research Systems DS360 Operating Manual And Programming Reference page 56

3-22 Operation
value.The DS360 is configured to send or receive: 2 stop bits, 8 data bits and no parity
bits.When data is being recieved by the DS360, the ACT LED will flash. If this LED is
not flashing there is no data being recieved by the DS360.
When connecting the DS360 to a PC use a standard PC serial cable, not a "null modem"
cable. The DS360 is a DCE (Data Communications Equipment) device, and should be
connected with a straight cable to a DTE device (Data Terminal Equipment). The
"minimum" cable needs pins 2, 3 and 7. For hardware handshaking, pins 5 and 20 (CTS
and DTR) should also be passed. Occasionally pins 6 and 8 (DSR and CD) will be
needed; these lines are always asserted by the DS360.
Error Messages
The DS360 has two types of error messages, operational error messages and self test
error messages. Operational errors include entering out of range values or incorrect units.
Self test error messages only occur when the unit is running its internal self tests.
Message
AC-DC ER
AC ERR
BUR.RAT.ER
NO.Cal.JPR
NOT APPL
OFF ERR
OUTQ ERR
RANGE ER
RCL ERR
SYN ERR
TOUT ERR
UNITS ER
DS360 Ultra Low Distortion Function Generator
Operational Errors
The Vac+|Vdc| value exceeded the limit for the current setting.
The amplitude entered is out of the allowable range.
Burst Rate Error. Burst Count > Rate Count.
No Cal jumper. Calbyte cannot be written without setting the calibration jumper.
The parameter is not applicable to the current instrument setting.
The offset entered is out of the allowable range.
Output queue error. The output queue is full.
The value entered is out of the allowed range for the current parameter.
Memory error found on power up or when recalling a stored setting. (Also
occurs when recalling a setting that hasn't been previously stored)
The command syntax is invalid.
Time out error when writing DSP memory.
The units set with AMPL, T1AA, T2BA or DPTH commands are not allowable
or nonexistent.
Meaning