Measurement-computing PCI-DAS6071 Bedienungsanleitung PDF herunterladen (Seite 41)

PCI-DAS6071 User's Guide Specifications

Analog trigger

Table 16. Analog trigger specifications

Parameter

Specification

Analog trigger sources

Software selectable

External: ATRIG input

CH0 IN through CH63 IN, first channel in scan

Analog trigger levels

ATRIG input: ±10 V

CH0 IN through CH63 IN: ± Full-scale, range dependent

Analog trigger modes

External analog: Software-configurable for:

 Positive or Negative slope

Analog gate modes

External analog: Software-configurable for:

 Above or below reference

 Positive or negative hysteresis

 In or out of window

Resolution

8-bits, 1-in-256

Accuracy

±5% Full-scale range max

Bandwidth (–3 dB)

ATRIG input: 1.3 MHz

CH0 IN through CH63 IN: 2.0 MHz

Analog I/O calibration

Table 17. Analog I/O calibration specifications

Parameter

Specification

Recommended warm-up time

15 minutes

Calibration

Auto-calibration, calibration factors for each range stored on board in non-

volatile RAM.

Onboard calibration reference

DC Level: 5.000 V± 2.5 mv. Actual measured values stored in EEPROM.

Tempco: 5ppm/°C max, 2 ppm/°C typ

Long-term stability: 20 ppm,

T = 1000 hrs, non-cumulative

Calibration interval

1 year

Digital I/O

Table 18. Digital I/O specifications

Parameter

Specification

Digital type

Discrete, 5V/TTL compatible

Number of I/O

Configuration

8 bits, independently programmable for input or output. All pins pulled up to

+5 V via 47 K resistors (default). Positions available for pull-down to ground.

Hardware selectable via solder gap.

Input high voltage

2.0 V min, 7.0 V absolute max

Input low voltage

0.8 V max, –0.5 V absolute min

Output high voltage

(IOH = –32 mA)

3.80 V min, 4.20 V typ

Output low voltage

(IOL = 32 mA)

0.55 V max, 0.22 V typ

Data transfer

Programmed I/O

Power-up / reset state

Input mode (high impedance)

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 47 48 49

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