7 Applied Instructions
7.24 External Device Communication (Inverter
741
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
1
Outline
2
Instruction List
3
Configuration of
Instruction
4
How to Read
Explanation of
Instructions
5
Basic Instruction
6
Step Ladder
Instructions
7
Applied
Instructions
8
Interrupt Function
and Pulse Catch
Function
A
Relationships
between devices
and addresses
Function and operation explanation
→ For detailed explanation of the instruction, refer to the Data Communication Edition manual.
1. 16-bit operation (IVWR)
A value specified in the device specified by is written to a parameter in the device specified by in
an inverter
*1
connected to a communication port n whose station number is in the device specified by .
*1. Mitsubishi Electric's FREQROL - F700, A700, E700, D700, V500, F500, A500, E500 and S500 series
general purpose inverters
2. Related devices
→ For the instruction execution complete flag use method, refer to Section 1.3.4.
*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.
1) The instruction is provided in the FX
3G PLC Ver. 1.10 or later.
2) It is not permitted to use the RS and RS2 instructions and an inverter communication instruction (IVCK,
IVDR, IVRD, IVWR and IVBWR) for the same port.
3) Two or more inverter communication instructions (IVCK, IVDR, IVRD, IVWR and IVBWR) can be driven
for the same port at the same time.
4) Some restrictions to applicable devices
S1: Applicable to the FX
3U, FX3UC and FX3G PLCs only.
S2: Applicable to the FX
3U and FX3UC PLCs only.
PLC applicable version
The table below shows PLC versions applicable to each inverter.
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
PLC FREQROL-V500/F500/A500/E500/S500 FREQROL-F700/A700 FREQROL-E700/D700
FX3G Ver.1.10 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
IVWR
EN ENO
s1
s2
s3
n
Channel to be used
Command
input
Inverter station number
Inverter parameter number
Set value to be written to the inverter parameter
or device storing the data to be set
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