Measurement-computing Personal Daq/3000 Series Manual de usuario descargar pdf (Pagina 73)

Note: Specifications are subject to change without notice. 937492 Specifications 7-7

Triggering

Trigger Sources: 7, individually selectable for starting and stopping an acquisition. Stop acquisition can occur on

a different channel than start acquisition; stop acquisition can be triggered via modes 2, 4, 5, or 6 described

below.

1. Single-Channel Analog Hardware Trigger: Any analog input channel can be software programmed as

the analog trigger channel, including any of the analog expansion channels.

Input Signal Range: -10

to +10V max

Trigger Level: Programmable; 12-bit resolution

Hysteresis: Programmable; 12-bit resolution

Latency: 350 ns ty

pical, 1.3 µs max

Accuracy: ±0.5% of reading, ±2 mV offset

Noise:

2 mV RMS

2. Single-Channel Analog Software Trigger: Any

analog input channel, including any of the analog

expansion channels, can be selected as the software trigger

channel. If the trigger channel involves a

calculation, such as temperature, then the driver automatically compensates for the delay required to

obtain the reading, resulting in a maximum latency of one scan period.

Input Signal Range:

Anywhere w

ithin the range of the selected trigger channel

Trigger Level: Programmable; 16-bit resolution, including “window triggering”

Latenc

y: One scan period max

3. Single-Channel Digital Trigger: A separate digital input is provided for digital triggering.

Input Signal Range:

-15V to +15V

Trigger Lev

el: TTL

Minimum Pulse Wi

dth: 50 ns high; 50 ns low

Latency: 100 ns ty

pical, 1.1 µs max

4. Digita

l Pattern Trigger: 8 or 16-bit pattern triggering on any

of the digital input ports. Programmable for

trigger

on equal, above, below, or within/outside of a window. Individual bits can be masked for “don’t

care” condition.

Latency: One scan period max

5. Counter/Totalizer Trigger: Counter/totalizer inputs can trigger an acquisition. User can select to trigger

on a frequency or on total counts that are equal, above, below, or w

ithin/outside of a window.

Latency: One scan period max

6. Software Trigger: Trigger can be initiated under program control.

7. Multi-Cha

nnel Triggering: Up to 16 channels can be used to generate a trigger condition for any

combination of analog, digital, or counter inputs. Multiple channels can either be combined in a logical

“or” or “and” condition, with hy

steresis programmable per channel. Maximum latency in this mode is

one scan period.

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 85 86

Comentarios a estos manuales

Sin comentarios

Measurement-computing Personal Daq/3000 Series Manual de usuario Pagina 73

Comentarios a estos manuales

Relacionado con productos y manuales para Hardware Measurement-computing Personal Daq/3000 Series