Konica Minolta PCI-1712L user manual Principles of Operation, Analog Input Features

Models: PCI-1712L PCI-1712

1 114
Download 114 pages 26.45 Kb
Page 45
Image 45
5. Principles of Operation

5. Principles of Operation

Chapter5

This chapter describes the analog input, analog output, digital I/O and counter/timer features of the PCI-1712/1712L card.

5.1 Analog Input Features

This section describes the following features of the analog input (A/D) of PCI-1712/1712L card:

wAnalog input ranges and gains

wAnalog input acquisition modes

wA/D sample clock sources

wTrigger sources

wAnalog Input Data Format

Analog Input Ranges and Gains

Each channel on the PCI-1712/1712L can measure unipolar and bipolar analog input signals. A unipolar signal can range between 0 to 10 V FSR, while a bipolar signal extends within ± 10 V FSR.

The PCI-1712/1712L is able to set different input ranges for each channel. When the channels are set as unipolar or bipolar input in FSR, the sampling rate can be up to 600 kS/s, but when there is a mixed combination of unipolar and bipolar inputs, it can operate only with a rate up to 400 kS/s.

The PCI-1712/1712L also provides various gain levels that are program- mable per channel. Table 5-1 lists the effective ranges supported by the PCI-1712/1712L using these gains.

Table 5-1: Gains and Analog Input Range

Gain

Unipolar Analog Input Range

Bipolar Analog Input Range

 

 

 

0.5

N/A

± 10 V

 

 

 

1

0 ~ 10 V

± 5V

 

 

 

2

0 ~ 5 V

± 2.5 V

 

 

 

4

0 ~ 2.5 V

± 1.25 V

 

 

 

8

0 ~ 1.25 V

± 0.625 V

 

 

 

For each channel, choose the gain level that provides most optimal range that can accommodate the signal range you have to measure. For detailed information, please refer to Appendix D.5 A/D Channel Range Setting.

Advantech Co., Ltd.

– 33 –

PCI-1712/1712L User’s Manual

www.advantech.com

 

 

Page 45
Image 45
Konica Minolta PCI-1712L user manual Principles of Operation, Analog Input Features, 1 Gains and Analog Input Range