Mitsubishi FX3U-232-BD - 8.2 Practical Example 2; 8.2.1 System configuration example; 8.2.2 Contents of operation

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FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
8 Practical Program Examples (for FX2N and FX2NC PLCs)
8.2 Practical Example 2
A
Common Items
B
N:N Network
C
Parallel Link
D
Computer Link
E
Inverter Communication
F
Non-Protocol Communication (RS/RS2 Instruction)
G
Non-Protocol Communication (FX
2N
-232IF)
H
Programming Communication
I
Remote Maintenance
Apx.
Discontinued models
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.
FX 2N , FX 2NC
System memory
Distributor
Inverter
Terminal resistor