plc: analog voltage gain setting

Analog Signal ProcessingPLC Analog Cards

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Basic Analog to Digital CurveDVP 04 AD

Basic Analog to Digital Curve

10 VDC

0 VDC

5 VDC

0 4000 8000

1 Volt =800 bitsResolution: 1.25mV


Basic A/D Curves

0 40008000

2.5 VDC

0 VDC

5 VDC

GAIN:Voltage Input value when digital

Output is K4,000

Should be -3200 ~ +16,000LSB.

Gain2000 (2.5*800)


If Input Voltage range is 0 ~ 5 VDC

Basic A/D Curves

0 4000 8000

2.5 VDC3.75 VDC

5 VDC

GAIN:Voltage Input value when digital

Output is K4,000 Should be 0LSB ~ +4,000LSB.

OFFSET:Voltage Input value when digital

Output value is K0 should be -4,000LSB ~

+4,000LSB.

OFFSET2000 (2.5*800) Gain

3000 (3.75*800)


Basic Digital to Analog CurveDVP 04 DA

Basic Digital to Analog Curves

10 VDC

0 VDC

5 VDC

0 2000 4000

1 Volt = 400 bitsResolution: 0.0025 V 2.5 mV

0 Hz

25 Hz

50 Hz


Basic D/A Curves

0 20004000

2.5 VDC

0 VDC

5 VDC 1 Volt = 800 bitsResolution: 0.00125 mV 1.25 mV

Resolution Increases with dec. in range

GAIN:The setting range of voltage

output value when digitalinput value is K2,000

Should be 0LSB ~ +4,000LSB.Gain

1000 (2.5*400)

0 Hz

12.5 Hz

25 Hz


Basic D/A Curves

0 2000 4000

2.5 VDC3.75 VDC

5 VDC

1 Volt = 800 bitsResolution: 0.00125 mV 1.25 mV

Resolution Increases with dec. in range

GAIN:The setting range of voltage output

value when digitalinput value is K2,000

Should be 0LSB ~ +4,000LSB.

OFFSET:The setting range of voltage output

value when digitalinput value is K0

should be -2,000LSB ~ +2,000LSB.

OFFSET1000 (2.5*400) Gain

1500 (3.75*400)

18.75 Hz12.5

Hz

25 Hz


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plc: analog voltage gain setting

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