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ötz • Telefon 03641/66880 • Fax 03641/668866 • www.piezojena.com
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1 = sine scan (one period)
2 = triangle scan (one period)
3 = sine scan (two periods)
4 = triangle scan (two periods)
ss
start scan
without value: request scan state
1 = starts scan
trgss
trigger generation stroke position start minimum: >0.2% of total stoke to
maximum: total stroke minus 0.2% of total
stroke [µm] or [mrad]
trgse
trigger generation stroke position end
minimum: >0.2% of total stoke to
maximum: total stroke minus 0.2% of total
stroke [µm] or [mrad],
always keep: trgse>trgss !
trgsi
trigger generation position intervals
>0.05% of total stroke in closed loop
[µm] or [mrad]
trglen
duration of trigger impulses
n*20µs n=1...255
trgedge
trigger generation edge
0= trigger generation off
1= trigger generation at rising edge
2= trigger generation falling edge
3= trigger generation at both edges
trgsrc
input source for trigger generation
0= position value (measurement value)
1= set value
trgoffs
offset for trigger values
only active by triggering on set value, in
units of actuator [µm] or [mrad]
reclen
record length [samples]
0..500000
recstride
stride n for recording
1..1000 (sample interval= n*20µs)
recrdptr
record read pointer
0..500000
recstart
starts data recording
-
m
responds actuator position,
increments record read pointer
m without parameter : m,xxxx
m,1 : xxxx
m,0,n : block with length n with m,xxxx
m,1,n: block with length n with xxxx
u
responds actuator voltage,
increments record read pointer
u without parameter : u,xxxx
u,1 : xxxx
u,0,n : block with length n with u,xxxx
u,1,n: block with length n with xxxx
bright
brightness of TFT-display
0
– display off
..
10
– maximum display brightness
table 10b: commands
Note
*
1
: The modules EVDxx sends every 500ms an actual position value to the EDSx module.
This value is used for display and for output via serial interface. Overuse querying this
value has no effect on the refresh rate. Moving the actuator above this frequency causes
alias effects, which mean the output values represents not more the real signal sequence.
Example of command use
:
An actuator with 80
μm displacement in closed loop should have a swing in rectangle mode from
