VTI Instruments Metek EX1202 User Manual page 75

IDLE
LAYER
INIT
LAYER
ARM
LAYER
TRIG
LAYER
SAMP
LAYER
DEVICE
LAYER
Basic EX1200 DMM Operation
INIT
ARM IMM
Wait for
ARM Event
SW ARM
ARM Event
ARM Delay
No Decrement
ARM INF?
ARM:COUNT
Yes
TRIG IMM
Wait for
TRIG Event
SW TRIG
TRIG Event
TRIG Delay
Decrement
No
TRIG INF?
TRIG:COUNT
Yes
SAMP IMM
SAMP Event
SW SAMP
SAMPLE Delay
Decrement No
SAMP INF?
SAMP:COUNT
Yes
Acquire ADC
Counts
AUTO RANGE?
and
No
HW OVERFLOW?
and not
RANGE MAX?
Yes
Range Delay
Yes
Range Up
Yes
Range Down
F
IGURE
IDLE
No
Yes
INIT CONT?
No
ARM:Count > 0
Yes
or
ARM INF?
No
TRIG:Count > 0
Yes
or
TRIG INF?
No
Wait for
SAMP:Count > 0
or
SAMP INF?
SAMP Event
Store Reading
Calibrate
Reading
AUTO RANGE?
and
OVER LIMIT?
and not
RANGE MAX?
No
AUTO RANGE?
and No
UNDER LIMIT?
and not
RANGE MIN?
4-3: T M
RIGGER ODEL
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Trigger Model Status
INITILIZED = 0
ARM ACTIVE = 0
TRIG ACTIVE = 0
SAMP ACTIVE = 0
ABORT
DEVICE ACTIVE = 0
(From any layer)
INITILIZED = 1
ARM ACTIVE = 0
TRIG ACTIVE = 0
SAMP ACTIVE = 0
DEVICE ACTIVE = 0
INITILIZED = 1
ARM ACTIVE = 1
TRIG ACTIVE = 0
SAMP ACTIVE = 0
DEVICE ACTIVE = 0
INITILIZED = 1
ARM ACTIVE = 0
TRIG ACTIVE = 1
SAMP ACTIVE = 0
DEVICE ACTIVE = 0
INITILIZED = 1
ARM ACTIVE = 0
TRIG ACTIVE = 0
SAMP ACTIVE = 1
DEVICE ACTIVE = 0
INITILIZED = 1
ARM ACTIVE = 0
TRIG ACTIVE = 0
SAMP ACTIVE = 0
DEVICE ACTIVE = 1
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