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RPM4/HPMS A70M/A20M-AF OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 100
4.5.4 READY STATUS REGISTER
The RPM4 contains an 8 bit Ready Status Register that reflects specific RPM4 Q-RPT
measurement ready events. Enabled events in this register will set or clear the RSB bit of the
Status Byte Register.
Table 18. 8 bit ready status register
N/A
(128)
MEAS
LO
(64)
NRDY
LO
(32)
RDY
LO
(16)
N/A
(8)
MEAS
HI
(4)
NRDY
HI
(2)
RDY
HI
(1)
This register can be read using the “*RSR?” query, Each of these status bits can set the
RSB bit of the Status Byte Register, causing a SRQ to occur IF the RSB bit is enabled to do so.
The Standard Event Status Enable Register (“*RSE” program message ) determines which
of these flags are able to assert the RSB bit. The description of these bits are given as:
MEAS LO Lo-RPT measurement ready Bit 6 (64)
Indicates that the Hi Q-RPT has completed a Q-RPT measurement.
NRDY LO Lo Q-RPT pressure Not Ready Bit 5 (32)
Indicates that the Hi Q-RPT made a transition from Ready to Not Ready as
defined by the stability settings (see Section 3.2.1).
RDY LO Lo Q-RPT pressure Ready Bit 4 (16)
Indicates that the Hi Q-RPT is Ready as defined by the stability settings (see
Section 3.2.1).
MEAS HI Hi Q-RPT measurement ready Bit 2 (4)
Indicates that the Hi Q-RPT has completed a Q-RPT measurement.
NRDY HI Hi Q-RPT pressure Not Ready Bit 1 (2)
Indicates that the Hi Q-RPT made a transition from Ready to Not Ready as
defined by the stability settings (see Section 3.2.1).
RDY HI Hi Q-RPT pressure Ready Bit 0 (1)
Indicates that the Hi Q-RPT is Ready as defined by the stability settings (see
Section 3.2.1).