Keyence Visual KV Series Manual de usuario descargar pdf (Pagina 389)

100

101

9.5 Programming Examples

KV-10/80 Series Only

KV-300

KV-10/80

Chapter 9 KV-AD4/DA4 Analog I/O Unit

1-365

Outputting Analog Input Data

This sample program outputs data received from the analog inputs.

Note: Voltage can be converted to current, and vice versa by switching the I/O

wiring.

Conditions

• Analog data is input from analog input V0 on the KV-AD4.

(The digital data of data memory DM0992 is used for this operation.)

• The data that was input from analog input V0 is output as it is to analog output

V0 on the KV-DA4. (The digital data is written to data memory DM0996.)

Ladder diagram

1. DM0996 is initialized when the power is turned ON.

(That is, #2000 is written to DM0996.)

2. Digital data in data memory for A/D conversion is written to DM0001.

3. Before the digital data is written to data memory for D/A conversion, check that

the data is #4095 or less.

Note: An unsteady value will be output if a value outside the range 0 to 4095 is

written to data memory for D/A conversion.

4. The output data will be updated at the rising edge of special utility relay 2800. (As

internal relay 1000 switches ON/OFF at each scan, the output data will be

updated every two scans.)

2008

#02000

LDA

2007

DM0992

LDA

1000

DM0996

STA

DM0001

STA

1500

1000

2800

1500

2002 2011

DM0001

LDA

#04095

CMP

DM0001

LDA

DM0996

STA

( )

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