E-94
FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
9 Creating Programs (for FX3G, FX3U and FX3UC PLCs)
9.7 Inverter Parameter Writing (PLC
→
Inverter) [FNC273 / IVWR]
Read devices: D100 = Motor rotation direction, D101 = Frequency, D102 = Time
9.7 Inverter Parameter Writing (PLC→Inverter) [FNC273 / IVWR]
This instruction writes a value from the PLC to a parameter in an inverter.
9.7.1 Function and operation
When a parameter number in an inverter is specified in IVWR (FNC273) instruction, the value of is
written to the specified item in the inverter.
1. Applicable devices
S: Only available for FX3U and FX3UC PLCs.
2. Program example
9.7.2 Inverter instruction codes
Refer to related data shown later.
Oper-
and
Type
Bit Devices Word Devices Others
System/User Digit Specification System/User
Special
Unit
Index
Con-
stant
Real
Number
Charac-
ter String
Pointer
XYMTCSD
.b KnX KnY KnM KnS T C D R
U\G
VZModifyKH E "
"P
S
S
S
n
M0
FNC272
IVRD
K6 K2201 D100
S
1
S
2
D
Drive
contact
Inverter station
number:
0 to 31
Read value storage destination
Inverter parameter number (decimal)
FNC272
IVRD
K6 K201 D101
FNC272
IVRD
K6 K1201 D102
M8029
RST M0
Execution
complete flag
Motor rotation direction
→
D100
Frequency
→
D101
Time
→
D102
The unit is specified by Pr. 200.
X001
SET M0
Read
command
K1
n
Communication channel K1:ch1
K1
K1
S
3
S
1
S
2
S
3
M0
FNC273
IVWR
K6 K7 D160
S
1
S
2
S
3
Command
contact
Inverter station number: 0 to 31
Value written to inverter
Inverter parameter number (decimal)
K1
n
Communication channel K1:ch1
K2:ch2
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