Lakeshore 340 - Page 133

Lake Shore Model 340 Temperature Controller User’s Manual
Remote Operation 9-35
LINEAR? Query Input Linear Equation Parameters
Input: LINEAR? <input>
Returned: <equation>, <varM value>, <X source>, <B source>, <varB value>
Format: n,±nnn.nnn,n,n,±nnn.nnn[term]
Remarks: Returns input linear equation configuration. See the LINEAR command for parameter
descriptions. <input> specifies which input to query.
LOCK Configure Lock-out and Lock-out Code
Input: LOCK [<off/on>], [<code>]
Returned: Nothing
Remarks: Configures keypad lock-out and lock-out code.
<off/on> Disables/enables the keypad lock-out.
<code> Specifies lock-out code. Valid entries: 000 - 999.
Example: LOCK 1, 123[term] - Enables keypad lock-out and sets the code to 123.
LOCK? Query Lock-out and Lock-out Code
Input: LOCK?
Returned: <off/on>, <code>. Format: n,nnn[term]
Remarks: Returns lock-out status and lock-out code. See the LOCK command for parameter
descriptions.
LOG Data Logging On/Off
Input: LOG <stop/start>
Returned: Nothing
Remarks: Turns data logging on and off.
<stop/start> 0 = stop, 1 = start.
LOG? Query Data Logging Status
Input: LOG?
Returned: <off/on>. Format: n[term]
Remarks: Returns data logging status: 0 = stopped, 1 = logging in progress.
LOGCNT? Query Total Number of Logged Records.
Input: LOGCNT?
Returned: <# of logged records>. Format: n[term]
Remarks: Returns total number of logged records.
LOGPNT Configure a data point for data logging
Input: LOGPNT <point>,<point type>[,<input>,<source>]
Returned: Nothing
Remarks: Configures a data point for data logging.
<point> Specifies which point to configure. Valid entries: 1 – 4.
<point type> Specifies the data type. Valid entries: 0 = None, 1 = Input, 2 = SP1,
3 = SP2, 4 = Out1, 5 = Out2.
<input> Specifies input when <type> = 1.
<source> Specifies input data to log when <type> = 1. Valid entries: 1 = Kelvin,
2 = Celsius, 3 = sensor units, 4 = linear data, 5 = min. data, 6 = max. data.
LOGPNT? Query a data point for data logging
Input: LOGPNT? <point>
Returned: <point type>[, <input>,<source>]. Format: n,a,n[term]
Remarks: Returns the specified data point setting for data logging. See the LOGPNT command for
parameter descriptions.
<point> Specifies which point to query. Valid entries: 1 – 4.