Mitsubishi FX3U-232-BD User Manual page 371

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
9.6 Inverter Parameter Reading (PLC←Inverter) [FNC272 / IVRD]
This instruction reads a parameter of an inverter to the PLC.
9.6.1 Function and operation
When a parameter number of an inverter is specified in IVRD (FNC272) instruction, the value of the
parameter is read to
1. Applicable devices
Bit Devices
Oper-
and System/User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
S
1
S
2
D
n
2. Program example
M0
Command
contact
Inverter station number: 0 to 31
9.6.2 Inverter instruction codes
Refer to related data shown later.
9.6.3 Program example of "second parameter specification code"
In the program example shown below, the parameters (frequency: 201, time: 1201, motor rotation direction:
2201) are read from the A500 inverter whose station number is 6.
Read devices: D100 = Motor rotation direction, D101 = Frequency, D102 = Time
X001
Read
command
M0
Drive
contact
Inverter station
M8029
Execution
complete flag
.
D
Digit Specification
S S
1 2
FNC272
K6 K7
IVRD
Inverter parameter number (decimal)
→ For second parameter specification code, refer to Section 9.9.
S S
1 2
FNC272
K6 K2201
IVRD
number:
Inverter parameter number (decimal)
0 to 31
FNC272
K6 K201
IVRD
FNC272
K6 K1201
IVRD
9 Creating Programs (for FX3U and FX3UC PLCs)
9.6 Inverter Parameter Reading (PLC ← Inverter) [FNC272 / IVRD]
Word Devices
Special
System/User Index
Unit
V Z Modify K H
D n
D150 K1
Communication channel K1:ch1
Read value storage destination
SET M0
D n
Motor rotation direction→D100
D100 K1
Communication channel K1:ch1
Read value storage destination
Frequency→D101
D101 K1
Time→D102
D102 K1
The unit is specified by Pr. 200.
RST M0
Others
Con- Real Charac-
Pointer
stant Number ter String
E " " P
K2:ch2
E-81
A
B
C
D
E
F
G
H
I
Apx.