E-89
FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
10 Practical Program Examples (for FX3U and FX3UC PLCs)
10.1 Practical Example 1
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
10. Practical Program Examples (for FX3U and FX3UC PLCs)
This chapter explains practical programs for inverter communication.
10.1 Practical Example 1
This fundamental program example monitors operations of an inverter, controls operations of an inverter and
writes parameters to an inverter.
10.1.1 System configuration example
An FX PLC (ch 1) is connected to an inverter.
10.1.2 Contents of operation
As an example of operation control, an inverter can be stopped (X000), rotated forward (X001) and rotated
reverse (X002).
By changing the contents of D10, the speed can be changed.
The contents of D10 can be changed from a sequence program or display unit.
FX
3U,
FX
3UC
Terminal resistor
Distributor
Inverter