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FX3G/
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3U
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3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
30 External Device Communication (Inverter Communication) – FNC270 to FNC274
30.1 FNC270 – IVCK / Inverter Status Check
21
FNC160-FNC169
Real Time Clock
Control
22
FNC170-FNC179
External Device
23
FNC180
Alternate
Instructions
24
FNC181-FNC189
Others
25
FNC190-FNC199
Block Data
Operation
26
FNC200-FNC209
Character String
Control
27
FNC210-FNC219
Data
Operation 3
28
FNC220-FNC249
Data
Comparison
29
FNC250-FNC269
Data Table
Operation
30
FNC270-FNC274
Ex-Device
Inverter Comms
30.1 FNC270 – IVCK / Inverter Status Check
Outline
This instruction reads the operation status of an inverter to a PLC using the computer link operation function of the
inverter. Applicable inverters vary depending on the version.
This instruction corresponds to the EXTR (K10) instruction in the FX
2N/FX2NC 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 FX3G PLCs.
3. Applicable devices
S: This function is supported only in FX3U/FX3UC PLCs.
Explanation of function and operation
→ For detailed explanation of the instruction, refer to the Data Communication Edition manual.
1. 16-bit operation (IVCK)
The operation status corresponding to the instruction code
*1
specified in of an inverter connected to
communication port n whose station number is specified in is read and transferred to .
*1. Refer to the instruction code list shown on the next page.
Refer to the pages in the inverter manual on which the computer link function is explained in detail.
Operand Type Description Data Type
Inverter station number (K0 to K31)
16-bit binary
Inverter instruction code (shown on the next page)
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
XYMTCSD
.b KnX KnY KnM KnS T C D R
U\G
V Z Modify K H E "
"P
33 S 333
33 S 333
333 33 S 3
n 33
FNC 270
IVCK
Mnemonic Operation Condition
16-bit Instruction
9 steps
IVCK
Mnemonic Operation Condition
Continuous
Operation
32-bit Instruction
⎯
⎯⎯
S
1
S
2
D
S
1
S
2
D
S
2
S
1
D
FNC270
IVCK
n
Command
input
S
1
S
2
D