S500 Series (When Connected To Rs-485 Port) - Mitsubishi Electric FX3U-232-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
5.2

S500 Series (When Connected to RS-485 Port)

5.2.1 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.
n1
n2
n3
n4
n7
n11
Pr79
n10
n6
2. Parameters which should be adjusted between test operation and actual operation
Parameter No.
n5
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.
n12
n8
n9
Pr37
*1. This inverter communication function cannot read or write Pr37.
Set Pr37 to "0" when setting or monitoring the frequency in the PLC.
If any value other than "0" is set and the instruction code HFF is set to "01", the frequency may not be
set or monitored normally.
E-50
Parameter item
Communication station number
Communication speed
Stop bit length
Parity check presence/absence
Wait time setting
CR/LF selection
Operation mode selection
Link start mode selection
Communication check time interval
Parameter item
Number of
communication retries
Parameter item
EEPROM write selection
Operation command
write
Speed command write
*1
Speed display
Set value
00 to 31 Up to eight inverters can be connected.
48 4800 bps
96 9600 bps
192 19200 bps (standard)
10 Data length: 7-bit/Stop bit: 1-bit
2 Even parity present
--- Set with communication data
1 With CR, without LF
External operation mode is selected when
0
power is turned ON.
1 Computer link operation
--- Communication check suspension
Set value
Set the value shown on the left during adjustment, and
---
set a value from 1 to 10 during operation.
Set value
0: Written to RAM and EEPROM
0 or 1
1: Written to RAM only. Not written to EEPROM
0: PLC
0 or 1
1: External
0: PLC
0 or 1
1: External
0 or 0.1 to 0: Frequency display, setting
999 0.1 to 999: Machine speed at 60Hz.
5 Communication Setting in Inverter
5.2 S500 Series (When Connected to RS-485 Port)
Setting contents
Setting contents
Setting contents