Mitsubishi FX3U-232-BD User Manual page 333

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
5.7 F700 and A700 Series (when built-in RS-485 terminal is connected)
5.7.1 Contents of parameter setting
1. Contents of communication setting (essential items)
The table below shows parameters which should be set in all cases.
Parameter No.
Pr331 RS-485 communication station
Pr332
RS-485 communication speed
Pr333 RS-485 communication stop bit length
RS-485
Pr334
selection
Pr337 RS-485 communication waiting time setting
Pr341 RS-485 communication CR/LF selection
Pr79 Operation mode selection
Pr340 Communication startup mode selection
Pr336 RS-485 communication check time interval
Pr549 Protocol selection
*1. The RS-485 communication speed set value "38400 bps" is not supported by FX PLCs.
2. Parameters which should be adjusted between test operation and actual operation
Parameter No.
RS-485 communication number
Pr335
of retries
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.
Parameter No.
Pr342 Communication EEPROM write selection
Pr338 Communication operation command source
Pr339 Communication operation command source
Parameter item
*1
communication parity
Parameter item Set value
9999
Parameter item
5.7 F700 and A700 Series (when built-in RS-485 terminal is connected)
Set value
00 to 31 Up to eight inverters can be connected.
48 4800 bps
96 9600 bps (standard)
192 19200 bps
10 Data length: 7-bit/Stop bit: 1-bit
check
2 2: Even parity
9999 Set in communication data
1 CR: Provided, LF: Not provided
External operation mode is selected when
0
power is turned ON.
1 Computer link
9999 Communication check is stopped.
0 Mitsubishi inverter (computer link) protocol
Setting contents
Set the value shown on the left during adjustment, and
set a value from 1 to 10 during operation.
Set value
0: EEPROM is written.
0 or 1
1: RAM is written.
0: PLC
0 or 1
1: Outside
0: PLC
0 or 1
1: Outside
5 Communication Setting in Inverter
Setting contents
Setting contents
E-43
A
B
C
D
E
F
G
H
I
Apx.