HP E4418B Programming Guide

prog.book : chapter1.fm 73 Mon Feb 15 09:24:37 1999
Power Meter Remote Operation
Status Reporting
HP E4418B/E4419B Programming Guide 1-73
Enable Register
The enable register specifies the bits in the event register that can
generate a summary bit. The instrument logically ANDs corresponding
bits in the event and enable registers and ORs all the resulting bits to
obtain a summary bit. Enable registers are read-write. Querying an
enable register does not affect it.
An Example Sequence
Figure 1-11 illustrates the response of a single bit position in a typical
status group for various settings. The changing state of the condition in
question is shown at the bottom of the figure. A small binary table shows
the state of the chosen bit in each status register at the selected times T1
to T5.
Figure 1-11: Typical Status Register Bit Changes
00
01
110
011
0
1
00
0
0
0
0
0
1
11
011
0
1
0
0
0
1
1
0
0
1
0
1
00
01
0
01
0
1
00
0
0
0
0
00
000
000
1
0
0
0
0
0
Case A
Case B
Case C
Case D
Condition
PTR NTR
Enable
Condition Event
Summary Bit
Condition Event
Summary Bit
Condition Event
Summary Bit
Condition Event
Summary Bit
Condition Event
Summary Bit
1
0
T1 T2 T3
T4
T5
00
0
0
00
***
*
marks when event register is read

HP E4418B Specifications

General

Brand	HP
Model	E4418B
Category	Measuring Instruments
Language	English