Lake Shore Model 370 AC Resistance Bridge User’s Manual
Q
OPC?
Operation Complete Query
Input:
*
OPC?[term]
Returned:
1[term]
Remarks:
Places a “1” in the instrument output queue upon completion of all pending selected device operations.
Send as the last command in a command string.
Not
the same as *
OPC
.
Q
RST
Reset Instrument Command
Input:
*
RST[term]
Remarks:
Sets instrument parameters to power-up settings. Use the
DFLT
command to set to factory defaults.
Q
SRE
Service Request Enable Register Command
Input:
*
SRE <bit weighting>[term]
Format:
nnn
Remarks:
Each bit has a bit weighting and represents the enable/disable mask of the corresponding status flag bit
in the Status Byte Register. To enable a status flag bit, send the command *
SRE
with the sum of the
bit weighting for each desired bit. Refer to Paragraph 6.1.4.1 for a list of status flags.
Example:
To enable status flags 2, 3, 4, and 6, send the command *
SRE 92[term]
. 92 is the sum of the bit
weighting for each bit.
Bit
Bit Weighting
Event Name
2 4
Valid
Read
3 8
Alarm
4 16
Error
6
64 SRQ
92
Q
SRE?
Service Request Enable Register Query
Input:
*
SRE?[term]
Returned:
<bit weighting>[term]
Format:
nnn
Refer to Paragraph 6.1.4.1 for a list of status flags.
Q
STB?
Status Byte Query
Input:
*
STB?[term]
Returned:
<bit
weighting>[term]
Format:
nnn
Remarks:
Acts like a serial poll, but does not reset the register to all zeros. The integer returned represents the
sum of the bit weighting of the status flag bits that are set in the Status Byte Register. Refer to
Paragraph 6.1.4.1 for a list of status flags.
Q
TST?
Self-Test
Query
Input:
*
TST?[term]
Returned:
<status>[term]
Format:
n
<status>
0 = no errors found, 1 = errors found
Remarks:
The Model 370 reports status based on test done at power up.
Q
WAI
Wait-to-Continue
Command
Input:
*
WAI[term]
Remarks:
This command is not supported in the Model 370.
Remote Operation
6-21
