Measurement Computing Micro 488/EX rev.2.1 - Manual (Page 151)

Section 5 Command Descriptions
5.81
The Addressed State is the current talker/listener state of the Micro488/EX. As a
Peripheral, the Micro488/EX can check this status to see if it has been Addressed to
Talk or Addressed to Listen by the Active Controller. In this way the desired direction
of data transfer can be determined.
The Service Request indicator reflects the external SRQ status. If the SRQ line is
asserted, S1 will be reported. If it is un-asserted, S0 will be reported.
The Error Code is 00 when no error has occurred. If it is non-zero, then the
appropriate error message is appended to the STATUS 1 response. For more details
about the individual errors, refer to Appendix B. The Error Code is reset to 00 when
STATUS
is read.
The Triggered (T0, T1) and Cleared (C0, C1) indicators are set when, as a
Peripheral, the Micro488/EX has received a GET (Group Execute Trigger) or
SDC/DCL (Selected Device Clear/Device Clear) bus command. These two indicators
are cleared when STATUS1 is read.
By issuing the STATUS 2 command, only the numeric error value is returned to
the serial output port. If no error has occurred, the value sent is 0. The error condition
is clear when reported.
SYNTAX STATUS [;][number]
or
ST
[;][number]
number is 0 to 2. If not specified, 0 is assumed.
RESPONSE Character string as described previously
MODE Any
BUS STATES None
EXAMPLES PRINT#1,"STATUS" Read the Micro488/EX status
INPUT#1,A$
PRINT A$
and display it.
CONTROLLER 10 Example of displayed STATUS 0
PRINT#1,"STATUS1" Read the Micro488/EX extended