5-6
The PLC reads the PV value (measured value) from the analogue input module. The CPU calculates PID control and writes the
analog value of the calculation result. This signal goes to an actuator in the manufacturing process, such as a heater, valve, or
pump. Over time, the liquid begins to change so much that it can be measured with the sensor probe. Thus, the process variable
changes. The following PID control starts. The PID control arithmetic cycle is repeated continuously in this manner.
Loop calculation
Manufacturing
process
Control
output
PV (Measurement value)
The setting of loop parameter
and observation
Summary of Contents for Kostac SJ-Ether Series
Page 1: ...English version of the KOSTAC SJ Ether series user s manual SJ ETHER USER M...
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Page 113: ...3 24 Note Refer to 6 3 3 Module Assembly for connections and locks between modules...
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Page 156: ...flashing OFF Not sent H W RX Green flashing Receiving H W OFF Not received H W...
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Page 310: ...Chapter 7 Maintenance...
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