Table of Contents
FX
/FX
/FX
Series Programmable Controllers
3G
3U
3UC
Programming Manual - Basic & Applied Instruction Edition
Explanation of function and operation
→ For detailed explanation of the instruction, refer to the Data Communication Edition manual.
1. 16-bit operation (IVBWR)
*1
A data table
(parameter numbers and set values) specified in
connected to a communication port n whose station number is
Command
input
FNC274
IVBWR
*1.
The table below shows the data table format.
: Number of parameters to be written
S
2
: Head device number of data table
S
3
Device
S
3
S
+1
3
+2
S
3
S
+3
3
S
+2
S
3
S
+2
S
3
+2
S
S
3
S
+2
S
3
2. Related devices
Number
ch1
ch2
M8029
M8063 M8438 Serial communication error
M8151 M8156 Inverter communicating
M8152 M8157 Inverter communication error
M8153 M8158
M8154 M8159 IVBWR instruction error
*1.
Cleared when the PLC mode switches from STOP to RUN.
*2.
Initial value: -1
Cautions
• 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.
S
S3
S
1
2
Parameter numbers to be written and set values
1st parameter
2nd parameter
-4
2
"
S
-1"th parameter
2
-3
2
-2
2
"
S
"th parameter
2
-1
2
→ For the instruction execution complete flag use method, refer to Subsection 6.5.2.
Description
Instruction execution complete
*1
*1
Inverter communication error
*1
latch
*1
→ For other cautions, refer to the Data Communication Edition manual.
30 External Device Communication (Inverter Communication) – FNC270 to FNC274
30.5 FNC274 – IVBWR / Inverter Parameter Block Write
and
S
2
all at once.
S
1
n
Parameter number
Set value
Parameter number
Set value
Parameter number
Set value
Parameter number
Set value
Number
ch1
ch2
D8063
D8438 Error code of serial communication error
D8150
D8155 Response wait time in inverter communication
D8151
D8156 Step number in inverter communication
Error code of inverter communication
D8152
D8157
*1
error
Latch of inverter communication error
D8153
D8158
occurrence step
D8154
D8159 IVBWR instruction error parameter number
is written to an inverter
S
3
Description
*2
*2
*2
737
21
22
23
24
25
26
27
28
29
30
Chapters
Table of Contents
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