Lake Shore Model 331 Temperature Controller User’s Manual
ALMRST
Reset Alarm Status Command
Input:
ALMRST[term]
Remarks:
Clears both the high and low status of all alarms, including latching alarms.
ANALOG
Analog Output Parameter Command
Input:
ANALOG <bipolar enable>, <mode>, <input>, <source>,
<high value>, <low value>, <manual value>[term]
Format:
n,n,a,n,±nnnnnn,±nnnnnn,±nnnnnn
<bipolar enable> Specifies analog output is 0 = positive output only or 1 = bipolar.
<mode>
Specifies data the analog output monitors. Valid entries: 0 = off,
1 = input, 2 = manual, 3 = loop.
<input>
Specifies which input to monitor if <mode> = 1.
<source>
Specifies input data. Valid entries: 1 = kelvin, 2 = Celsius,
3 = sensor units, 4 = linear equation.
<high value>
If <mode> is 1 , this parameter represents the data at which the analog
output r100% output.
<low value>
If <mode> is 1, this parameter represents the data at which the analog
output reaches –100% output if bipolar, or 0% output if positive only.
<manual value> If <mode> is 2, this parameter is the output of the analog output.
Example: ANALOG
0,1,A,1,100.0,0.0[term]
– Sets analog output to monitor Input A kelvin reading with
100.0 K at +100% output (+10.0 V) and 0.0 K at 0% output (0.0 V).
ANALOG?
Analog Output Parameter Query
Input:
ANALOG?[term]
Returned:
<bipolar enable>, <mode>, <input>, <source>, <high value>, <low value>, <manual value>
[term]
Format:
n,n,a,n,±nnnnnn,±nnnnnn,±nnnnnn (Refer to command for definition)
AOUT?
Analog Output Data Query
Input:
AOUT?[term]
Returned:
<analog output>[term]
Format:
±nnn.n
Remarks:
Returns the percentage of output of the analog output. Most often used for input or loop
modes when the output value is set by the instrument. Resolution is 0.5%.
BAUD
RS-232 Baud Rate Command
Input:
BAUD <bps>[term]
Format:
n
<bps>
Specifies Baud rate: 0 = 300 Baud, 1 = 1200 Baud, 2 = 9600 Baud.
BAUD?
RS-232 Baud Rate Query
Input:
BAUD?
Returned:
<bps>
[term]
Format:
n
(Refer to command for description)
Remote Operation
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