ETS-Lindgren 2090 Controller - Manual (Page 135)

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