Ametek BPS Series Programming Manual Manuel d'utilisateur Page 139

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BPS / MX / RS Series SCPI Programming Manual AMETEK Programmable Power
Manual P/N 7003-961 Rev. AA 139
5.12 *STB?
This query reads the Status Byte register, which contains the status summary bits and the
Output Queue MAV bit. Reading the Status Byte register does not clear it. The input
summary bits are cleared when the appropriate event registers are read (see chapter 7 for
more information). A serial poll also returns the value of the Status Byte register, except that
bit 6 returns Request for Service (RQS) instead of Master Status Summary (MSS). A serial
poll clears RQS, but not MSS. When MSS is set, it indicates that the source has one or more
reasons for requesting service.
Bit Configuration of Status Byte Register
Bit Position 7 6 5 4 3 2 - 0
Bit Name OPER MSS RQS ESB MAV QUES not used
Bit Weight 128 64 32 16 8
OPER operation status summary MSS master status summary
ESB event status byte summary RQS request for service
QUES questionable status summary MAV message available
Query Syntax *STB?
Returned Paramters <NR1> (Register binary value)
Related Commands *SRE *ESE *ESR
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