THORLABS CLD101 Series, Руководство по эксплуатации

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4.3 Command Reference
4.3.1 IEEE488.2 Common Commands
Common commands are device commands that are common to all devices according to the
IEEE488.2 standard. These commands are designed and defined by this standard. Most of the
commands are described in detail in this section. The following common commands associated
with the status structure are covered in the “Status Structure” section: *CLS, *ESE, *ESE?, *ESR?,
*SRE,
Command summary
Mnemonic Name Description
*CLS Clear status Clears all event registers and Error Queue
*ESE <NRf> Event enable command Sets the Standard Event Enable Register
*ESE? Event enable query Returns the Standard Event Enable Register
*ESR? Event status register query Returns and clear the Standard Event Register
*IDN? Identification query Returns the unit’s identification string
*OPC Operation complete command Sets the Operation Complete bit in the Standard Event
Register
*OPC?
Operation complete query Places a “1” into the output queue when all device
operations have been completed
*RST
Reset command Returns the unit to the *RST default condition
*SRE <NRf> Service request enable command Sets the Service Request Enable Register
*SRE? Service request enable query Returns the Service Request Enable Register
*STB? Status byte query Returns the Status Byte Register
*TST? Self-test query Performs the unit’s self-test and returns the result.
*WAI Wait-to-continue command Waits until all previous commands are executed
Command reference
1. *IDN? – identification query - read identification code
The identification code includes the manufacturer, model code, serial number, and firmware
revision levels and is sent in the following format:
Thorlabs,MMM,SSS,X.X.X,
where
MMM
is the model code
SSS
is the serial number
X.X.X
is the instrument firmware revision level
2. *OPC – operation complete - set OPC bit
3. *OPC? – operation complete query – places a “1” in output queue
When
*OPC
is sent, the OPC bit in the Standard Event Register will set after all pending command
operations are complete. When
*OPC?
is sent, an ASCII “1” is placed in the Output Queue after all
pending command operations are complete.
Typically, either one of these commands is sent after the
INITiate
command. The
INITiate
command is used to take the instrument out of idle in order to perform measurements. While
operating within the trigger model layers, many sent commands will not execute. After all
programmed operations are completed, the instrument returns to the idle state at which time all
pending commands (including
*OPC
and/or
*OPC?
) are executed. After the last pending command
is executed, the OPC bit and/or an ASCII “1” is placed in the Output Queue.
4. *RST – reset – return instrument to defaults
When the
*RST
command is sent, the instrument performs the following operations:
·
Returns the instrument to default conditions
·
Cancels all pending commands.
·
Cancels response to any previously received
*OPC
and
*OPC?
commands.