E-32
FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
5 Communication Setting in Inverter
5.3 E500 Series (When Connected to PU Port)
5.3 E500 Series (When Connected to PU Port)
5.3.1 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
3. Others (which should be set if necessary)
The table below shows parameters to be considered when using various system configuration and inverters.
For the method of use, refer to the respective inverter manual.
*1. When changing the frequency from the PLC, set "1" or "9999".
Parameter No. Parameter item Set value Setting contents
Pr117 Communication station number 00 to 31 Up to eight inverters can be connected.
Pr118 Communication speed
48 4800 bps
96 9600 bps
192 19200 bps (standard)
Pr119 Stop bit / Data length 10 Data length: 7-bit/Stop bit: 1-bit
Pr120 Parity check presence/absence 2 Even parity present
Pr123 Waiting time setting 9999 Set with communication data
Pr124
CRLF presence/absence
selection
1 With CR, without LF
Pr79 Operation mode selection 0
External operation mode is selected when power
is turned ON.
Pr122
Communication check time
interval
9999 Communication check suspension
Parameter No. Parameter item Set value Setting contents
Pr121
Number of
communication retries
9999
Set the value shown on the left during adjustment, and
set a value from 1 to 10 during operation.
Parameter No. Parameter item Set value Setting contents
Pr146
Frequency setting
command selection
*1
0, 1, 9999
0 : The built-in frequency setting knob is valid.
1 : The built-in frequency setting knob is invalid.
9999 : The built-in frequency setting knob is valid when
the frequency is set to "0 Hz" by the keys.
Pr342
EEPROM write selection
(only in 400 V class)
0 or 1
0: EEPROM is written.
1: RAM is written.
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