AMETEK Lx Series II Programming Manual - Manual (Page 157)

Programming Manual Lx \ Ls Series II
153
7.3 Questionable Status Group
The Questionable Status registers record signals that indicate abnormal operation of the AC
source. As shown in Figure 7-1, the group consists of the same type of registers as the Status
Operation group.
Register Command Description
Condition STAT:QUES:COND? A register that holds real-time status of the
circuits being monitored. It is a read-only
register.
PTR Filter STAT:QUES:PTR A positive transition filter that functions as
described under STAT:QUES:NTR|PTR
commands in chapter 4. It is a read/write
register.
NTR Filter STAT:QUES:NTR A negative transition filter that functions as
described under STAT:QUES:NTR|PTR
commands in chapter 4. It is a read/write
register.
Event STAT:QUES:EVEN? A register that latches any condition that is
passed through the PTR or NTR filters. It is a
read-only register that is cleared when read.
Enable STAT:QUES:ENAB A register that functions as a mask for enabling
specific bits from the Event register. It is a
read/write register.
Table 7-3: Questionable Status registers
The outputs of the Questionable Status group are logically-ORed into the QUEStionable summary
bit (3) of the Status Byte register.
Note: If the AC source is in the three-phase mode, each signal that is fed into the Questionable
Status Condition register is logically-ORed from three corresponding status signals that
originate from each phase. Figure 7-1 illustrates this for the OV bit; the same illustration
also applies to the other bits in the Condition register.