KEYENCE Visual KV Series - Manual (Page 389)

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
1
9
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
1000
2800
1500
2002 2011 DM0001
LDA
#04095
CMP
DM0001
LDA
DM0996
STA
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4
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