731
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
30 External Device Communication (Inverter Communication) – FNC270 to FNC274
30.3 FNC272 – IVRD / Inverter Parameter Read
21
FN
C
160-
FN
C
169
R
eal T
im
e C
lo
ck
C
ont
ro
l
22
FN
C
170-
FN
C
179
Exter
nal D
ev
ice
23
FN
C
180
Al
ter
nate
In
str
uc
tions
24
FN
C
181-
FN
C
189
O
ther
s
25
FN
C
190-
FN
C
199
B
lock D
ata
O
per
at
ion
26
FN
C
200
-F
N
C
20
9
C
har
acter
S
tring
C
ont
ro
l
27
FN
C
210-
FN
C
219
Da
ta
O
per
ation 3
28
FN
C
220-
FN
C
249
Da
ta
C
om
par
ison
29
FN
C
250
-F
N
C
26
9
D
ata T
abl
e
O
per
ati
on
30
FN
C
270-
FN
C
274
Ex
-D
ev
ice
Inv
ert
er
Com
m
s
30.3
FNC272 – IVRD / Inverter Parameter Read
Outline
This instruction reads an inverter parameter to the PLC using the computer link operation function of the
inverter.
This instruction corresponds to the EXTR (K12) instruction in the FX
2N
/FX
2NC
Series.
→
For detailed explanation of the instruction, refer to the Data Communication Edition manual.
1. Instruction format
2. Set data
*1.
Ch2 is not available in 14-point and 24-point type FX
3G
PLCs.
3. Applicable devices
S
: This function is supported only in FX
3U
/FX
3UC
PLCs.
Explanation of function and operation
→
For detailed explanation of the instruction, refer to the Data Communication Edition manual.
1. 16-bit operation (IVRD)
The value of the parameter
is read from an inverter connected to a communication port n whose
station number is
, and output to
.
Operand Type
Description
Data Type
Inverter station number (K0 to K31)
16-bit binary
Inverter parameter number
Device number storing the read value
n
Channel to be used (K1: ch 1, K2: ch 2)
*1
Oper-
and
Type
Bit Devices
Word Devices
Others
System User
Digit Specification
System User
Special
Unit
Index
Con-
stant
Real
Number
Charac-
ter String
Pointer
X Y M T C S D
.b KnX KnY KnM KnS T C D R U
\G
V Z Modify K H
E
"
"
P
3 3
S
3
3 3
3 3
S
3
3 3
3 3
S
3
n
3 3
FNC 272
IVRD
Mnemonic
Operation Condition
16-bit Instruction
9 steps
IVRD
Mnemonic
Operation Condition
Continuous
Operation
32-bit Instruction
⎯
⎯
⎯
S
1
S
2
D
S
1
S
2
D
S
2
S
1
D
FNC272
IVRD
S
1
S
2
D
n
Command
input