Lake Shore Cryotronics Measure Ready M91 FastHall, User Manual

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72 c
HAPTER
4: Computer Interface Operation
MeasureReady™ M91 FastHall™ Measurement Controller
*SRE
Command Format *SRE <data>
Parameter <data> Decimal value that is the sum of the binary-weighted
values for the desired bits.
Data type is
NR1
Query Format *SRE?
Return Parameter <data> (see above)
Examples
Command *SRE 4 Enables error available flag
Query *SRE?
Query Response 136 Indicates that operation and questionable event enable
flags are set
Remarks This command programs the service request enable register bits. This register deter-
mines which bits from the status byte register are summed to set the Master Status
Summary (MSS) bit. To enable a status flag bit, send the command *SRE with the sum
of the bit weighting for each desired bit. Refer to section 4.3.2.2 for a list of status
flags.
Bit Bit weighting Event name
2 4 EAV
3 8 QSB
4 16 MAV
5 32 ESB
7 128 OSB
Total: 188
*STB?
Query Format *STB?
Return Parameter <data> Data type is NR1
Examples
Query *OPC?
Query Response 1
Remarks Reads the status byte register. 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 section 4.3.2.1 for a list of sta-
tus flags.
*TST?
Query Format *TST?
Return Parameter <status> 0 = no errors found, 1= errors found
Data type is
NR1
Examples
Query *TST?
Query Response 0 Indicates no errors were found
Remarks The report status based on test done at power up..
*WAI
Command Format *WAI
Remarks Causes the interface to hold off until all pending operations have been completed.
This is the same function as the *OPC command, except that it does not set the opera-
tion complete event bit in the event status register.