Lakeshore 340 - Page 140

Lake Shore Model 340 Temperature Controller User’s Manual
9-42 Remote Operation
SRDG? Query Sensor Units Reading for an Input
Input: SRDG? <input>
Returned: <sensor units value>. Format: ±nnn.nnnE±n[term]
Remarks: Returns the sensor units reading for an input. <input> Specifies which input to query.
TUNEST? Query Control Loop 1 Tuning Status
Input: TUNEST?
Returned: <tuning status>. Format: n[term]
Remarks: Returns 0 if the loop is not tuning, and 1 if it is tuning.
XSCAN Configure External Scanner Mode Parameters
Input: XSCAN [<mode>], [<channel>], [<interval>]
Returned: Nothing
Remarks: Configures the external scanner mode (refer to Paragraph 5.4).
<mode> Specifies scan mode. Valid entries: 0 = off, 1 = manual, 2 = autoscan, 3 = slave.
<channel> Specifies scanned input to use if <mode> = manual. Valid entries: 1 - 16.
<interval> Specifies autoscan interval in seconds if <mode> = autoscan. Valid entries: 0 - 999.
Example: XSCAN 2,,5[term] - Sets the instrument to autoscan the inputs with an interval of 5 seconds.
XSCAN? Query External Scanner Mode Parameters
Input: XSCAN?
Returned: <mode>, <channel>, <interval>. Format: n,nn,nnn[term]
Remarks: Returns the external scanner mode configuration. See the XSCAN command for parameter
descriptions.
ZONE Configure Control Loop Zone Table Parameters
Input: ZONE <loop>, <zone>, [<top value>], [<P value>], [<I value>], [<D value>], [<mout
value>], [<range>]
Returned: Nothing
Remarks: Configures the control loop limit band parameters used in conjunction with the Status Byte
Register (refer to Paragraph 9.1.3).
<loop> Specifies which loop to configure.
<zone> Specifies which zone in the table to configure. Valid entries are: 1 - 10.
<top value> Specifies the top temperature of this zone.
<P value> Specifies the P for this zone.
<I value> Specifies the I for this zone.
<D value> Specifies the D for this zone.
<mout value> Specifies the manual output for this zone.
<range> Specifies the heater range for this zone if <loop> = 1. Valid entries: 0 - 5.
Example: ZONE 1, 1, 25.0, 10, 20, 0, , 2[term] - Control Loop 1 zone 1 is valid to 25.0 K with a P of 10,
an I of 20, no D, and a heater range of 2.
ZONE? Query Control Loop Zone Table Parameters
Input: ZONE? <loop>, <zone>
Returned: <top value>, <P value>, <I value>, <D value>, <mout value>, <range>
Format: nnn.nnn,nnnn.n,nnnn.n,nnnn,±nnn.nn,n[term]
Remarks: Returns control loop zone table parameters. See the ZONE command for parameter
descriptions.
<loop> Specifies which loop to query.
<zone> Specifies which zone in the table to query. Valid entries: 1 - 10.