Mitsubishi Electric MELSEC iQ-F Series Quick Connection Manual page 38

APPENDIX
Inverter Communication
Instructions
1
Inverter parameter read [IVRD]
This instruction reads an inverter parameter value and stores the read value in (d1) when a parameter number is specified.
IVRD
2
Example program
The following program reads the maximum frequency (Pr.1) of the inverter (station number 0) and stores the
read value in D100 of the programmable controller.
Reading
contact
X1
3
Command
contact
M0
4
*: Make sure not to use devices being used in other control operations.
5
Inverter parameter write [IVWR]
This instruction writes a value set in (s3) to a specified inverter parameter when a parameter number is specified.
IVWR
6
Example program
The following program writes 10 Hz as the setting value to the minimum frequency (Pr.2) of the inverter (station number 0).
Reading
contact
X1
Command
contact
M0
*: Make sure not to use devices being used in other control operations.
38
(s1) (s2) (d1) (n) (d2)
IVRD K0
Instruction execution
completed flag
SM8029
(s1) (s2) (s3) (n) (d)
IVWR K0
Instruction execution
completed flag
SM8029
SET M0
K1 D100 K1 M200
RST M0
SET M0
K2 K10 K1 M200
RST M0
Maximum frequency: D100
Head bit device number for instruction execution status output
Communication channel: K1 to K4
Read value storage destination
Inverter parameter number (decimal)
Inverter station number: 0 to 31
Minimum frequency: 10 Hz
Head bit device number for instruction execution status output
Communication channel: K1 to K4
Value written to inverter: K10 (10 Hz)
Inverter parameter number (decimal)
Inverter station number: 0 to 31