VTI Instruments Corp.
70
EX10xxA Triggering
S
ECTION
4
TRIGGERING
O
VERVIEW
The EX10xxA supports a full function trigger model with a separate arm source and trigger source
event structure. The trigger model is based on the industry standard SCPI 1999 Trigger Subsystem
and is diagramed in Figure 4-2.
IDLE
IDLE
LAYER
ARM
LAYER
TRIG
LAYER
INIT
LAYER
DEVICE
LAYER
Init
Continuous?
No
Init
Yes
Wait for
ARM Event
ARM Delay
ARM Event
ARM:Count > 0
or
ARM:Count:Inf?
No
Yes
Software Arm
ARM:COUNT:INF?
Decrement
ARM:COUNT
No
Yes
TRIG:Count > 0
or
TRIG:Count:Inf?
No
Wait for
TRIG Event
TRIG Delay
TRIG Event
Software Trigger
TRIG:COUNT:INF?
Yes
Yes
RUN SCAN LIST
Decrement
TRIG:COUNT
No
F
IGURE
4-2:
EX10
XX
A
T
RIGGER
M
ODEL
Summary of Contents for EX1000A
Page 28: ...VTI Instruments Corp 28 EX10xxA Introduction EX1044 DIAGRAM ...
Page 29: ...www vtiinstruments com EX10xxA Introduction 29 FIGURE 1 5 EX1044 TABLE TOP USAGE ...
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