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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
30 External Device Communication – FNC270 to FNC276
30.1 FNC270 – IVCK / Inverter Status Check
2. Inverter instruction codes
The table below shows inverter instruction codes which can be specified in . Only use the instruction codes
shown below. Use of instruction codes not shown below may cause communication errors.
Do not use instruction codes not shown in the table below. They may cause communication errors.
For the instruction codes, refer to the pages explaining computer link in detail in each inverter manual.
*1. Please write "0" to instruction code HFF (Link parameter expansion setting) just before the IVCK instruction
when reading frequency.
When "0" is not written, reading of the frequency may not be executed normally.
3. Related devices
→ For the instruction execution complete flag use method, refer to Subsection 6.5.2.
*2. Cleared when PLC power supply is turned from OFF to ON.
*3. Cleared when the PLC mode switches from STOP to RUN.
*4. Initial value: -1
Cautions
→ For other cautions, refer to the Data Communication Edition manual.
• It is not permitted to use an "RS (FNC 80)/RS2 (FNC 87)"/"ADPRW (FNC276)"/"FLCRT (FNC300) to FLSTRD
(FNC305)" instruction and an "IVCK (FNC270) to IVMC (FNC275)" instruction for the same port.
• Two or more inverter communication instructions (FNC270 to FNC275) can be driven for the same port at the same
time.
PLC applicable version
The table below shows PLC versions applicable to each inverter.
Inverter Instruction
code (hexadecimal)
Read contents
Applicable inverter
F700 A700 E700 D700 V500 F500 A500 E500 S500
H7B Operation mode
H6F
Output frequency
(speed)
*1
H70 Output current
H71 Output voltage –
H72 Special monitor ––
H73 Special monitor selection No. ––
H74 Alarm definition
H75 Alarm definition
H76 Alarm definition –
H77 Alarm definition –
H79 Inverter status monitor (expansion) –––––
H7A Inverter status monitor
H6E Set frequency (EEPROM)
*1
H6D Set frequency (RAM)
*1
H7F Link parameter extended setting
These codes cannot be specified in of the IVCK instruction. They
are automatically processed when a "second parameter specification
code" is specified the IVRD instruction.
H6C Second parameter changing
Number
Description
Number
Description
ch1 ch2 ch1 ch2
M8029 Instruction execution complete D8063 D8438
Error code of serial communication error
*2
M8063 M8438
Serial communication error
*2
D8150 D8155
Response wait time in inverter communication
*2
M8151 M8156 Inverter communicating D8151 D8156
Step number in inverter communication
*4
M8152 M8157
Inverter communication error
*3
D8152 D8157
Error code of inverter communication error
*3
M8153 M8158
Inverter communication error latch
*3
D8153 D8158
Latch of inverter communication error occurrence
step
*3*4
M8154 M8159
IVBWR instruction error
*3
D8154 D8159
IVBWR instruction error parameter number
*3*4
PLC FREQROL-V500/F500/A500/E500/S500 FREQROL-F700/A700 FREQROL-E700/D700
FX
3S Ver. 1.00 or later
FX
3G Ver. 1.10 or later
FX3GC Ver. 1.40 or later
FX3U Ver. 2.20 or later Ver. 2.32 or later
FX3UC Ver. 1.00 or later Ver. 2.20 or later Ver. 2.32 or later
S
2
S
2
S
2