697
FX
3G
/FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
30 External Device Communication (Inverter Communication) – FNC270 to FNC275
30.6 FNC275 – IVMC / Inverter Multi Command
21
FNC160
-F
NC1
69
R
eal
T
ime C
lock
C
ontrol
22
FNC17
0-F
NC
179
E
xternal D
evice
23
FNC
180
Alternate
Instructions
24
FN
C181-
FNC18
9
O
thers
25
FNC190
-F
NC1
99
Bl
oc
k D
ata
Op
er
atio
n
26
FNC20
0-F
NC209
C
har
ac
te
r S
trin
g
Con
tro
l
27
FNC2
10-
FNC21
9
Dat
a
Operati
on 3
28
FNC220
-F
NC2
49
Da
ta
C
omp
ari
son
29
FNC25
0-F
N
C
269
D
ata T
abl
e
Operation
30
FNC2
70-
FNC275
Ex
-Dev
ice
Inverter C
om
m
s
30.6
FNC275 – IVMC / Inverter Multi Command
Outline
This instruction writes 2 types of settings (operation command and set frequency) to the inverter, and reads 2 types of
data (inverter status monitor, output frequency, etc.) from the inverter at the same time.
→
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 (IVMC)
This instruction executes multiple commands of an inverter connected to a communication port n whose station
number is specified in
. Specify the send/receive data type using
, the head device which stores data to
be written to the inverter using
, and the head device which stores values to be read from the inverter using
.
2. Send/recive data type
The table below shows valid send data 1 and 2 and receive data 1 and 2 specified by the send/receive data type
.
Operand Type
Description
Data Type
Inverter station number (K0 to K31)
16-bit binary
Multiple instructions for inverter: Send/receive data type specification
Head device which stores data to be written to the inverter (Occupies 2 points.)
Head device which stores values to be read from the inverter (Occupies 2 points.)
n
Channel to be used (K1: ch1, K2: ch2)
*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
3 3
S
3
n
3 3
Send/recive
data type
Send data
(Write contents to Inverter)
Recive data
(Read contents from Inverter)
Data 1 (
)
Data 2 (
+1)
Data 1 (
)
Data 2 (
+1)
H0000
Run command (expansion)
Set frequency (RAM)
Inverter status monitor
(expansion)
Output frequency (speed)
H0001
Special monitor
H0010
Set frequency
(RAM, EEPROM)
Output frequency (speed)
H0011
Special monitor
FNC 275
IVMC
16-bit Instruction
11 steps
IVMC
Continuous
Operation
Mnemonic Operation Condition
32-bit Instruction
Mnemonic Operation Condition
S
1
S
2
S
3
D
S
1
S
2
S
3
D
S
1
S
2
S
3
D
Command
input
FNC275
IVMC
S
1
S
2
S
3
n
D
S
2
S
2
S
2
S
3
S
3
D
D
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