User`s manual

108 cHAPTER 6: Computer Interface Operation
Model 335 Temperature Controller
ESR? Standard Event Status Register Query
Input ESR?[term]
Returned <bit weighting>
Format nnn
Remarks The integer returned represents the sum of the bit weighting of the event flag bits in
the Standard Event Status Register. Refer to
section 6.2.5 for a list of event flags.
IDN? Identification Query
Input IDN?[term]
Returned <manufacturer>,<model>,<instrument serial>/<option serial>,
<firmware version>[term]
Format s[4],s[8],s[7]/s[7],n.n
<manufacturer> Manufacturer ID
<model> Instrument model number
<instrument serial> Instrument serial number
<option card serial> Option card serial number
<firmware version> Instrument firmware version
Example LSCI,MODEL335,1234567/1234567,1.0
OPC Operation Complete Command
Input OPC[term]
Remarks Generates an Operation Complete event in the Event Status Register upon comple-
tion of all pending selected device operations. Send it as the last command in a com-
mand string.
OPC? Operation Complete Query
OPC?[term]
Returned 1[term]
Remarks Places a 1 in the controller output queue upon completion of all pending selected
device operations. Send as the last command in a command string.

Not the same as OPC.
RST Reset Instrument Command
Input RST[term]
Remarks Sets controller parameters to power-up settings.