THORLABS 4000 Series, Руководство программиста, Страница: 15 / 97

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3 Commands by Subsystem
13
3.1.6 *WAI - Wait To Continue
Syntax
*WAI
Description
The *WAI command is a no operation command for the instrument and thus, does not need to
be used. It is there for conformance to IEEE488.2.
3.1.7 *STB?
Syntax
*STB?
Description
The
*STB?
command queries the instrument's
Status Byte Register
. This is a read-only register
and the bits are not cleared when you read the register. See also figure Status Structure .
Table <%+%>:
Status Byte Register
Bit # Decimal Value Mnemonic - Description
0 1 AUX - Auxiliary Status Structure Summary Bit
One or more bits are set in the
Auxiliary Event Register
(bits must be enabled,
see
Auxiliary Status Register Group
).
1 2 MEAS - Measurement Status Structure Summary Bit
One or more bits are set in the
Measurement Event Register
(bits must be
enabled, see
Measurement Status Register Group
).
2 4 EAV - Error Available Bit
One or more errors have been stored in the Error Queue. Use the
SYSTem:ERRor?[:NEXT]
command to read and delete errors.
3 8
QUES - Questionable Data Structure Summary Bit
One or more bits are set in the
Questionable Event Register
(bits must be
enabled, see
Questionable Data Register Group
).
4 16
MAV - Message Available Bit
Data is available in the instrument's output buffer.
5 32
ESB - Standard Event Status Bit
One or more bits are set in the
Standard Event Register
(bits must be enabled,
see
*ESE
command).
6 64 RQS/MSS - Request Service / Master Summary Status Bit
One or more bits are set in the
Status Byte Register
and may generate a
Request for Service (RQS). Bits must be enabled using the
*SRE
command.
7 128
OPER - Standard Operation Status Summary Bit
One or more bits are set in the
Standard Operation Register
(bits must be
enabled, see
STATus:OPERation:ENABle
command).
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