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8.3.2 Removing the Terminal Block .........................................................................1-316
8.3.3 Example of Voltage I/O Wiring ........................................................................ 1-317
8.3.4 Example of Current I/O Wiring ........................................................................ 1-318
8.3.5 Setting I/O Ranges .........................................................................................1-319
8.4 Programming ................................................................................................1-320
8.4.1 Input Characteristics (A/D) .............................................................................. 1-320
8.4.2 Calculating Input Data (A/D) ...........................................................................1-321
8.4.3 Output Characteristics (D/A) ........................................................................... 1-322
8.4.4 Calculating Output Data (D/A) ........................................................................ 1-323
8.4.5 Assigning Data Memory (DM) Addresses ....................................................... 1-324
8.4.6 Reading Analog Input ..................................................................................... 1-325
8.4.7 Measuring Analog Input Average ...................................................................1-326
8.4.8 Writing Analog Output ..................................................................................... 1-327
8.4.9 Converting Analog Input to Analog Output ..................................................... 1-328
8.5 KV-AN6 Appendices ....................................................................................1-329
8.5.1 Troubleshooting ..............................................................................................1-329
8.5.2 Precautions ..................................................................................................... 1-330
8.5.3 Specifications .................................................................................................. 1-331
Environmental specifications ...................................................................1-331
System specifications ..............................................................................1-331
8.5.4 Dimensions .....................................................................................................1-332
Chapter 9 KV-AD4/DA4 Analog I/O Unit KV-10/80
9.1 Outline .........................................................................................................1-334
Features ................................................................................................... 1-334
9.2 Configuration ...............................................................................................1-335
9.2.1 Part Names and Functions ............................................................................. 1-335
KV-AD4 ....................................................................................................1-335
KV-DA4 ....................................................................................................1-336
9.2.2 Specifications .................................................................................................. 1-337
KV-AD4 ....................................................................................................1-337
KV-DA4 ....................................................................................................1-339
9.2.3 System Configuration .....................................................................................1-341
9.3 Installation ....................................................................................................1-342
9.3.1 Installation Procedure .....................................................................................1-342
9.3.2 Checking the Installation Environment ...........................................................1-343
9.3.3 Setting the KV-AD4 Input Mode ...................................................................... 1-344
Setting the input mode .............................................................................1-344
9.3.4 Connecting External Instruments .................................................................... 1-345
Wiring .......................................................................................................1-345
Wiring diagrams .......................................................................................1-346
9.3.5 Connecting to the KV-10 to 80 ........................................................................ 1-348
9.3.6 Maintenance ................................................................................................... 1-349
Inspection and Cleaning ..........................................................................1-349
9.4 Programming ................................................................................................1-350
9.4.1 Programming the KV-AD4 .............................................................................. 1-350
A/D Conversion Mechanism ....................................................................1-350
About Digital Data after A/D Conversion .................................................. 1-351
Calculating Voltage and Current Values from Digital Data ...................... 1-352
9.4.2 Programming the KV-DA4 .............................................................................. 1-353
D/A Conversion Mechanism ....................................................................1-353
Converting Digital Data to Voltage or Current Values to be Output ......... 1-354
Writing Digital Data to Data Memory for D/A Conversion ........................ 1-356
9.4.3 A/D and D/A Conversion Tables ..................................................................... 1-357
Voltage Conversion Table ........................................................................ 1-357
Current Conversion Table ........................................................................ 1-358
9.5 Programming Examples ..............................................................................1-359
Calculating Analog Data Values from Digital Data ................................... 1-359
Writing Data to be Analog-output ............................................................. 1-361
Outputting Analog Trimmer Values .......................................................... 1-364
Outputting Analog Input Data ................................................................... 1-365
Outputting Analog Input from a Pressure Sensor to an Air Valve ............ 1-366
Setting the Minimum and Maximum Voltage Limits and Measuring the
Average Voltage ......................................................................................1-367
9.6 Troubleshooting ...........................................................................................1-370
KVNKA Front_Pro.p65 08.3.11, 0:13 PM19
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