E-39
FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
5 Communication Setting in Inverter
5.6 E700 Series (when PU port is connected)
A
Common Items
B
N:N Network
C
Parallel Link
D
Computer Link
E
Inverter
Communication
F
Non-Protocol
Communication
(RS/RS2 Instruction)
G
Non-Protocol
Communication
(FX
2N
-232IF)
H
Programming
Communication
I
Remote
Maintenance
Apx.
Discontinued
models
5.6 E700 Series (when PU port is connected)
5.6.1 Contents of parameter setting
1. Contents of communication setting (essential items)
The table below shows parameters which should be set in all cases.
2. Parameters which should be adjusted between test operation and actual operation
Caution on setting the PU communication check time interval (Pr122)
Parameter No. Parameter item Set value Setting contents
Pr117 PU communication station number 00 to 31 Up to eight inverters can be connected.
Pr118 PU communication speed
48 4800 bps
96 9600 bps
192 19200 bps (standard)
Pr119 PU communication stop bit length 10 Data length: 7-bit/Stop bit: 1-bit
Pr120 PU communication parity check 2 2: Even parity
Pr123 PU communication waiting time setting 9999 Set in communication data
Pr124
PU communication CR/LF presence/
absence selection
1 CR: Provided, LF: Not provided
Pr79 Operation mode selection 0
External operation mode is selected when
power is turned ON.
Pr549 Protocol selection 0
Mitsubishi inverter (computer link
operation) protocol
Pr340 Communication startup mode selection 1 or 10
1: Network operation mode
10: Network operation mode
Operation mode can be changed
between the PU operation mode and
network operation mode from the
operation panel.
Parameter No. Parameter item Set value Setting contents
Pr121 Number of PU communication retries 9999
Set the value shown on the left during
adjustment, and set a value from 1 to 10
during operation.
Pr122 PU communication check time interval 9999
Set the value shown on the left during
adjustment, and set a proper value in
accordance with the system specification
during operation.
Description Set value
During adjustment or when communication with the PLC is not executed periodically 9999
When communication with the PLC is not executed 0 (Initial Value)
Set the communication time in the following cases
• When it is necessary to monitor absence of communication for a certain time and stop
the inverter in such a case while communication with the PLC is being executed
• When it is necessary to stop the motor at the point which the PLC mode is changed
from RUN to STOP
0.1 to 999.8 sec
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