Keithley 2002

IEEE-488 Reference
3-131
Effects of positive transitions on the Sequence Event Register:
Positive transition effect on
Sequence event Sequence Event Register
Layer 1 Sets B1 when in Arm Layer 1.
Layer 2 Sets B2 when in Arm Layer 2.
.
PRINT #1, "output 16; :stat:oper:ptr 1026; ptr?" ' Set B1 and B10 of Operation
PTR
PRINT #1, "enter 16" ' Get response message from
2002
Figure 3-38
Sequence Transition Filter
Lay2
B15 - B3 B2 B1 B0
(2 )
2
4
(2 )
1
2
0/1 0/1
Bit Position
Event
Decimal Weighting
Value
Value : 1 = Enable Positive Transition
0 = Disable Positive Transition
Lay1
A) Positive Transition (PTR) Register
Lay2
B15 - B3 B2 B1 B0
(2 )
2
4
(2 )
1
2
0/1 0/1
Bit Position
Event
Decimal Weighting
Value
Value : 1 = Enable Negative Transition
0 = Disable Negative Transition
Lay1
B) Negative Transition (NTR) Register
Program fragment