Servo Dynamics DigiDrive 2000 Series, Information Manual

Page: 35 / 79

Chapter C - Drive parameters
Rev. A 10-99
DigiDrive Manual Series 2000 / 4000
Pg 34
Servo Dynamics Corp. 21541-D Nordhoff St. Chatsworth, CA 91311 www.servodynamics.com
1.2 Scope parameters
Scope parameters :
5 parameters for scope settings (Address 41..45).
80 read only parameters for the measuring values (Address 100..179).
Use of scope function
When a time scale different of 0 is written, the drive starts the measurement, the parameters
100..179 are filled cyclically with samples.
When trigger condition is satisfied, the drive saves the position (trigger position parameter) and
continues the measurement during the number of post-trig samples defined. At the end of the
measurements, time scale parameter is set to 0 to indicate the end.
Add Description Comment
41 Time scale Factor of 133 us for the sampling time.
42 HB Parameter 1 address (channel 1) Address of parameter 1 to measure
LB Parameter 1 scale Number of shift (left shift for positive
value and right shift for negative value)
43 HB Parameter 2 address (channel 2) Address of parameter 2 to measure
LB Parameter 2 scale Number of shift (left shift for positive
value and right shift for negative value
44 HB Slope positive/negative or null null for no trigger
LB Trigger value Threshold value
45 HB Trigger position Address where the trig point is (100..179)
LB Number of Post-trig samples 0 : 100 % pretrig
80 : 0 % pretrig
46 Scope options
(since firmware
V2005) bit 15 = 0 -+ saturation (when values overshoot with the defined
scale).
bit 15 = 1 -+ no saturation (for bit wise operations or low bits
watching)
100 HB Value 1 of parameter 1 Measured value
LB Value 1 of parameter 2 Measured value
..
179 HB Value 80 of parameter 1 Measured value
LB Value 80 of parameter 2 Measured value