10-1
PC Function
10
Chapter 10: PC Function
The PC function is designed to create a ladder circuit program based on the data (coordinates, distance,
degree of match, and results of numerical calculations) obtained from the measurements and calculations
made by the IV-S20. Then it outputs the results of the calculations performed by the circuit.
Use of the PC function enables the IV-S20 to output measurement results to an external equipment such
as a lamp by itself, without the need for an external PC.
10-1 Operation cycle
The operation cycle of the IV-S20 is outlined below. This flowchart contains only the operations related
to the PC function, and does not show communications with external devices.
Power ON sequence
Power ON
Input refresh
Ladder circuit calculation (final output conditions)
Output refresh
Image processing for measurement 0 using camera 1
Ladder circuit calculation
(based on output conditions for measurement 0 of camera 1)
Measurement processing for measurement 0 using camera 2
Ladder calculation (based on output conditions for measurement 0 of camera 2)
Measurement processing for measurement 1
Ladder calculation (based on output conditions for measurement 1)
Measurement processing for measurement 2
Measurement processing for measurement 3
Ladder calculation (based on output conditions for measurement 2)
Ladder calculation (based on output conditions for measurement 3)
X0
X1
C001
C000
Y00
Y01
C000
C001
N01
N02
0M0
0X0
C000
NO
YES
PC scan
cycle
Measurement
processing
cycle
Ex. :
Ex. :
Has a measurement start
input signal been received?
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