Keyence Visual KV Series Manual de usuario descargar pdf (Pagina 387)

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

1-363

Example 2: Outputting Analog Current (4 to 20 mA)

• Data that has been written to DM0000 is converted to digital data for analog

output.

• The digital data is sent to analog output I0 on the KV-DA4.

(Digital data is written to data memory DM0996.)

•4 mA is output when input 0000 is ON.

• 20 mA is output when input 0000 is OFF.

1. #4000 is written to DM0000 when input 0000 is ON.

2. #20000 is written to DM0000 when input 0000 is OFF.

3. ((DM0000

÷ 4 µA) - 1000) is calculated, and the calculation result is written to

DM0001.

4. 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.

5. 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.)

Note: In the case of current output, DM0996 need not be initialized (#2000 written to

DM0996) when the power is turned ON.

0000

#04000

0000

DM0000

#20000

DM0000

2002

DM0000

LDA

#00004

DIV

DM0001

STA

#01000

SUB

1000

2800

2002 2011

DM0001

LDA

#04095

CMP

DM0001

LDA

DM0996

STA

( )

KVHKA Chap 09.p65 08.3.11, 11:20 AM363

1 2 ... 382 383 384 385 386 387 388 389 390 391 392 ... 443 444

Comentarios a estos manuales

Sin comentarios

Keyence Visual KV Series Manual de usuario Pagina 387

Comentarios a estos manuales

Relacionado con productos y manuales para Sensores Keyence Visual KV Series