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FX3G/
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
30 External Device Communication (Inverter Communication) – FNC270 to FNC274
30.5 FNC274 – IVBWR / Inverter Parameter Block Write
2. Related devices
→ For the instruction execution complete flag use method, refer to Subsection 6.5.2.
*1. Cleared when the PLC mode switches from STOP to RUN.
*2. 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)/FLCRT (FNC300)/FLDEL (FNC301)/FLWR (FNC302)/
FLRD (FNC303)/FLCMD (FNC304)/FLSTRD (FNC305) instruction and an IVCK (FNC270)/IVDR (FNC271)/
IVRD (FNC272)/IVWR (FNC273)/IVBWR (FNC274) instruction for the same port.
• Two or more inverter communication instructions (FNC270 to FNC274) can be driven for the same port at the same
time.
Applicable models depending on the PLC version
Available inverter models are added depending on the version, as shown in the table below.
Number
Description
Number
Description
ch1 ch2 ch1 ch2
M8029 Instruction execution complete D8063 D8438 Error code of serial communication error
M8063 M8438 Serial communication error D8150 D8155 Response wait time in inverter communication
M8151 M8156
Inverter communicating
*1
D8151 D8156
Step number in inverter communication
*2
M8152 M8157
Inverter communication error
*1
D8152 D8157
Error code of inverter communication
error
*1
M8153 M8158
Inverter communication error
latch
*1
D8153 D8158
Latch of inverter communication error
occurrence step
*2
M8154 M8159
IVBWR instruction error
*1
D8154 D8159
IVBWR instruction error parameter number
*2
Applicable version
Item Outline of function
FX3U FX3UC
Ver.2.32 or later Ver.2.32 or later
Addition of applicable
models
Mitsubishi FREQROL-E700 Series general-purpose inverters are
supported.
Ver.2.20 or later Ver.2.20 or later
Addition of applicable
models
Mitsubishi FREQROL-F700/A700 Series general-purpose inverters
are supported.