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Functional groups
Functional groups
Manual ADQ-250 series Rev. 0.9
Figure 10: Wiring of the external trigger inputs
3.2.2 Programming
For programming the analog acquisition there is a differentiation between the so-called "Single
value acquisition" and the "Timer-controlled acquisition". On demand the measurement can be
started or stopped by two external TTL trigger inputs.
3.2.2.1 Single value acquisition
This operation mode is for acquiring single values without fixed time reference.
Depending on configuration the conversion can be started by software or by a rising and/or
falling edge at the two external trigger inputs (TRIG_
x
).
Please note the order of operation as described in the online help.
3.2.2.2 Timer-controlled acquisition
With the timer-controlled acquisition you can sample signals in defined time intervals and
acquire them continuously. You can acquire a pre-defined number of frames or continuously.
The so-called A/D value FIFO is a fast buffer memory which enables a continuous data transfer
of all channels at maximum speed to the PC.
Summary of Contents for ADQ-250 cPCI
Page 1: ...Manual Rev 0 9 EN ADQ 250 cPCI PCIe Isolated 8 channel voltage measurement board...
Page 14: ...14 Functional groups Functional groups Manual ADQ 250 series Rev 0 9...
Page 24: ...24 Appendix Appendix Manual ADQ 250 series Rev 0 9...
Page 37: ...Appendix 37 Manual ADQ 250 series Rev 0 9 Appendix...
