For Fx 2N And Fx 2Nc Plcs - Mitsubishi FX3U-USB-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
7. Creating Programs (for FX
This chapter explains how to create programs which change inventer parameters and give operation
commands to inverters.
As explanation, a program example is shown for each applied instruction.
7.1 Checking Contents of Related Devices
The tables below show the devices used in inverter communication in FX
1. Bit devices
Device No.
Instruction execution
M8029
complete
Extension ROM
M8104
cassette check
M8154 Unused
Communication port
M8155
busy
Communication error
M8156
or parameter error
Communication error
M8157
latch
R: Read only (used as a contact in program)
*1. Cleared when the PLC mode is changed from STOP to RUN.
2. Word devices
Device No.
Extension ROM
D8104
cassette type code
Extension ROM
D8105
cassette version
Inverter response
D8154
waiting time
Step number of
D8155 instruction using
communication port
D8156
Error code
Error occurrence
D8157
step number latch
R: Read only
W: Write only
R/W: Read or Write
*1. Cleared when the PLC mode is changed from STOP to RUN.
E-62
Name
Turns ON when execution of EXTR instruction is completed, and remains
ON for 1 scan.
Turns ON also when execution of instruction is completed if M8156
(communication error or parameter error) turns ON.
Remains ON while an extension ROM cassette is attached.
Remains ON while the communication port is used by AN extr instruction.
Turns ON when a communication error is caused by AN extr instruction.
Turns ON when a communication error occurs.
*1
Name
Stores the extension ROM cassette type code (value: K1).
Stores the extension ROM cassette version.
(value: K100 = Ver. 1.00).
Sets the inverter response waiting time.
Stores the step number of the EXTR instruction using the communication
port.
Stores an error code when a communication error is caused by an EXTR
*1
instruction.
Stores the instruction step number in which a communication error has
*1
occurred. (Stores K-1 when no error has occurred.)
7 Creating Programs (for FX2N and FX2NC PLCs)
and FX
2N 2NC
2N
Description
⎯
Description
7.1 Checking Contents of Related Devices
PLCs)
and FX PLCs.
2NC
R/W
R
R
R
R
R
R
R/W
R
R
R/W
R
R
R