Omron RX Series - Page 480

8 Communications Functions
8 - 4
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
To configure the 3G3RX-V1 Series Inverter for RS485 communications, the following settings are
required.
*1 When the Communication Method Selection (C079) is set to 01 (Modbus method), the Communication Bit
Length Selection (C073) is disabled.
*2 The default data was changed from the previous model.
Settings
Parameter No. Function name Data Default data Unit
C071
Communication Speed
Selection
(Baud Rate Selection)
02: Loop-back test
03: 2,400 bps
04: 4,800 bps
05: 9,600 bps
06: 19,200 bps
05
*2
–
C072
Communication Station
No. Selection
1. to 32.: Allocate each inverter’s station
number. Set station numbers
to control several inverters
simultaneously.
1. –
C073
Communication Bit Length
Selection
7: 7 bits
8: 8 bits
8
*2
–
C074
Communication Parity
Selection
00: No parity
01: Even
02: Odd
00 –
C075
Communication Stop Bit
Selection
1: 1 bit
2: 2 bits
1–
C076
Operation Selection on
Communication Error
00: Trip
01: Trip after deceleration stop
02: Ignore
03: Free-run stop
04: Deceleration stop
02 –
C077
Communication Error
Timeout Time
0.00: Function disabled
0.01 to 99.99: Length of time to
occurrence of a
communications timeout
0.00 s
C078 Communication Wait Time
0. to 1000. : Time to wait for response
from the inverter
0. ms
C079
Communication Method
Selection
00: ASCII method
01: Modbus method
*1
01 –
Related functions A001, A002