Mitsubishi FX3U-232-BD

E-69
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
2. Changing the speed using a sequence program
M8000
K6000 D10
RUN
monitor
Operation
speed
M18
Command for
switching to speed 2
The operation speed is
written as "40 Hz"
The operation speed is
written as "20 Hz"
The preset frequency is
written to the inverter
FNC 12
MOV
"60 Hz" is written as
the initial value at
startup
K4000 D10
FNC 12
MOV
K2000 D10
FNC 12
MOV
Operation
speed
Operation
speed
Operation
speed
M17
Command for
switching to speed 1
M8002
Initial pulse
D10 D80
FNC 12
MOV
Operation
speed
Operation
speed is
withdrawn
SET M11
The write
instruction
is driven
D10 D80
FNC228
LD<>
M11
The write
instruction
is driven
The write
instruction
is driven
M8029
Instruction execute
complete
Change in the
operation speed
(D10) is
detected
Operation
speed
Operation speed is
withdrawn
P
P
P
RST M11
H0ED D10
FNC180
EXTR
K11 K0