Model 2090 Multi-Device Controller
*SRE?
Description:
Query Service Request Enable Register. Prepares controller to respond
with the contents of the Service Request Enable Register when queried.
The value returned is a decimal number in the range of 0 to 255. This
value when expressed in binary form, represents the value of the eight bit
Standard Event Status Enable Register.
Devices:
Towers, Turntables
Syntax:
*SRE?
Response:
XXX
Integer value representing the setting of the Service
Request Enable Register
Example:
CALL ibwrt (TableUD%, "*SRE?")
' Query the value of the SRE
CALL ibrd (TableUD%, rdbuf$)
' Read response
See Also:
*SRE
*STB?
Description:
Query Status Byte. Prepares the controller to respond to the contents of the
Status Byte Register when queried. The value returned is a decimal in the
range of 0 to 255. This value, when expressed in binary form, represents the
eight bit value of the Status Byte Register. The value of this register is also
returned in response to a serial poll, with the exception that the MSS bit is
replaced by the value of the Request For Service (RQS) flag. The bit pattern
of this register is as follows:
Dependent
Devices:
Towers, Turntables
Syntax:
*STB?
Response:
XXX
Integer value representing the bits of the Status Byte
Register. The bit pattern is as follows.
0
-
Device
Error (DDE)
Set when the logical AND of the Device Dependent
Error Register and the Device Dependent Error
Enable Register is non-zero. This is a 2090/2190
specific status bit. (See ERR?)
1
-
Undefined
2
-
Undefined
3
-
Undefined
4
-
Message
Available
(MAV)
Set when there is data in the device output queue
waiting to be read over the GPIB.
5
-
Event
Status
Bit (ESB)
Set when the logical AND of the Event Status
Register and the Event Status Enable Register is
non-zero.
6
-
Master
Summary
Status
(MSS)
Set when the logical AND of the remaining bits of
the Status Byte Register and the Status Byte
Enable Register is non-zero.
7
-
Undefined
Example:
CALL ibwrt (TowerUD%, "STB?")
' Query status byte
CALL ibrd (TowerUD%, rdbuf$)
' Read response
See Also:
ERR?, *ESR?, *SRE, *SRE?
©ETS-Lindgren, April 2006
135
Revision G– P#399199
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