Keithley 2001 User Manual

IEEE-488 Reference
4-182
Effects of positive transitions on the Measurement Event Register:
Positive transition effect on
Measurement event Measurement Event Register
Reading overflow Sets B0 when reading exceeds range limits.
Low limit 1 Sets B1 when reading is less than the low limit 1 setting.
High limit 1 Sets B2 when reading is greater than the low limit 1 setting.
Low limit 2 Sets B3 when reading is less than the low limit 2 setting.
High limit 2 Sets B4 when reading is greater than the high limit 2 setting.
Reading available Sets B5 after a reading is taken and processed.
Buffer available Sets B7 when the trace buffer has at least two readings.
Buffer half full Sets B8 when the trace buffer becomes half full.
Buffer full Sets B9 when the trace buffer becomes full.
Buffer pretriggered Sets B11 when the trace buffer pretrigger event occurs.
F
igure 4-34
M
easurement Transition Filter
RAV
B15 - B12 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
(2 )
9
(2 )
8
(2 )
7
(2 )
5
(2 )
4
(2 )
3
(2 )
2
(2 )
1
(2 )
0
32
0/1
Bit Position
Event
Decimal Weighting
Value
Value : 1 = Enable Positive Transition
0 = Disable Positive Transition
LL1
2
0/1
BFL HL2 HL1 ROF
512 16 4 1
0/1 0/1 0/1 0/1
BHF BAV LL2
256 128 8
0/1 0/1 0/1
A) Positive Transition (PTR) Register
RAV
B15 - B12 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
(2 )
9
(2 )
8
(2 )
7
(2 )
5
(2 )
4
(2 )
3
(2 )
2
(2 )
1
(2 )
0
32
0/1
Bit Position
Event
Decimal Weighting
Value
Value : 1 = Enable Negative Transition
0 = Disable Negative Transition
LL1
2
0/1
BFL HL2 HL1 ROF
512 16 4 1
0/1 0/1 0/1 0/1
BHF BAV LL2
256 128 8
0/1 0/1 0/1
B) Negative Transition (NTR) Register
BPT
B11
(2 )
11
2048
0/1
BPT
B11
(2 )
11
2048
0/1

Keithley 2001 Specifications

General

Brand	Keithley
Model	2001
Category	Multimeter
Language	English