Practical Example 2 - Mitsubishi FX3U-USB-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
8.2

Practical Example 2

This program executes the same control as practical example 1 shown above.
8.2.1 System configuration example
An FX PLC is connected to an inverter.
8.2.2 Contents of operation
The differences from practical example 1 are that the inverter status is not read while data is written to an
inverter, and that the contents to be written are detected and written to an inverter only when the contents to
be written are changed.
Because communication between the PLC and the inverter is minimum in this program, the communication
time is reduced and the response time is improved.
E-78
FX , FX
2N 2NC
System memory
8 Practical Program Examples (for FX2N and FX2NC PLCs)
Inverter
Terminal resistor
Distributor
8.2 Practical Example 2