HP VXI 75000 C Series, User'S And Scpi Programming Manual

Page: 99 / 438

Programming the HP E1415 for PID Control 99 Chapter 3
If you wanted the "FIFO Overflowed" and "Setup Changed" conditions to
be reported you would execute;
STAT:QUES:ENAB 9216
9216=decimal sum of values for
bits 10 and 13
Operation Status Group Examples
If you only wanted the "FIFO Half Full" condition to be reported by the OPR
bit (bit 7) of the Status Byte, you would execute;
STAT:OPER:ENAB 1024
1024=decimal value for bit 10
If you wanted the "FIFO Half Full" and "Scan Complete" conditions to be
reported you would execute;
STAT:OPER:ENAB 1280
1280=decimal sum of values for
bits 10 and 8
Standard Event Group Examples
If you only wanted the "Query Error", "Execution Error", and "Command
Error" conditions to be reported by the ESB bit (bit 5) of the Status Byte, you
would execute;
*ESE 52
52=decimal sum of values for
bits 2, 4, and 5
Reading the Status
Byte
To check if any enabled events have occurred in the status system, you first
read the Status Byte using the *STB? command. If the Status Byte is all
zeros, there is no summary information being sent from any of the status
groups. If the Status Byte is other than zero, one or more enabled events have
occurred. You interpret the Status Byte bit values and take further action as
follows:
Bit 3 (QUE)
bit value 8
10
Read the Questionable Data Group’s Event Register
using the STAT:QUES:EVENT? command. This will
return bit values for events which have occurred in this
group. After reading, the Event Register is cleared.
Note that bits in this group indicate error conditions. If
bit 8, 9 or 10 is set, error messages will be found in the
Error Queue. If bit 7 is set, error messages will be in the
error queue following the next *RST or cycling of
power. Use the SYST:ERR? command to read the
error(s).
Bit 4 (MAV)
bit value 16
10
There is a message available in the Output Queue. You
should execute the appropriate query command.