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30 Applied Instructions (External Device Communication)
30.5 IVBWR / Inverter Parameter Block Write
720
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
Function and operation explanation
→ For detailed explanation of the instruction, refer to the Data Communication Edition manual.
1. 16-bit operation (IVBWR)
A data table
*1
(parameter numbers and set values) specified in and is written to an inverter
connected to a communication port n whose station number is in the device specified by all at once.
*1. The table below shows the data table format.
: Number of parameters to be written
: Head device number of data table
2. Related devices
→ For the instruction execution complete flag use method, refer to Section 1.3.4.
*1. Cleared when PLC power supply is turned from OFF to ON.
*2. Cleared when the PLC mode switches from STOP to RUN.
*3. Initial value: -1
Cautions
→ For other cautions, refer to the Data Communication Edition manual.
1) It is not permitted to use an "IVCK, IVDR, IVRD, IVWR, IVBWR or IVMC" instruction and a following
instruction for the same port:
- "RS or RS2" instruction
- "ADPRW" instruction
- "FLCRT, FLDEL, FLWR, FLRD, FLCMD or FLSTRD" instruction
2) Two or more inverter communication instructions (IVCK, IVDR, IVRD, IVWR, IVBWR and IVMC) can be
driven for the same port at the same time.
PLC pplicable version
The table below shows PLC versions applicable to each inverter.
Device Parameter numbers to be written and set values
1st parameter
Parameter number
+1
Set value
+2
2nd parameter
Parameter number
+3
Set value
...
...
...
+2 -4
- 1"th parameter
Parameter number
+2 -3
Set value
+2 -2
th parameter
Parameter number
+2 -1
Set value
Number
Description
Number
Description
ch1 ch2 ch1 ch2
M8029 Instruction execution complete D8063 D8438
Error code of serial communication error*
1
M8063 M8438
Serial communication error*
1
D8150 D8155
Response wait time in inverter communication*
1
M8151 M8156
Inverter communicating
D8151 D8156
Step number in inverter communication*
3
M8152 M8157
Inverter communication error*
2
D8152 D8157
Error code of inverter communication error*
2
M8153 M8158
Inverter communication error latch*
2
D8153 D8158
Latch of inverter communication error occurrence
step
*2*3
M8154 M8159
IVBWR instruction error*
2
D8154 D8159
IVBWR instruction error parameter number
*2*3
PLC FREQROL-V500/F500/A500/E500/S500 FREQROL-F700/A700 FREQROL-E700/D700
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
IVBWR
EN ENO
s1
s2
s3
n
Inverter station number
Command
input
Number of parameters in an inverter to be written at one time.
Head address of a parameter table to be written to an inverter
Channel to be used