6-3
6-3 List of Modbus Communication (Modbus-RTU) Parameters
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
6
Communication Function
6-3 List of Modbus Communication
(Modbus-RTU) Parameters
Set the following parameters according to the communication specifications.
As for C071, C074 and C075, modified data are not reflected until the power is reconnected or
a reset is performed. To perform a reset, turn the reset terminal (18: RS) OFF, ON and then
OFF again.
Parameter
No.
Function name Data
Default
setting
Unit
A001 Frequency Reference
Selection 1
03: Modbus communication
(Modbus-RTU)
02 −
A002
RUN Command Selection 1
03: Modbus communication
(Modbus-RTU)
02 −
C071 Communication Speed
Selection
03: 2,400 bps
05 −
04: 4,800 bps
05: 9,600 bps
06: 19.2 kbps
07: 38.4 kbps
08: 57.6 kbps
09: 76.8 kbps
10: 115.2 kbps
C072 Communication Station
No. Selection
1. to 247.
1. −
C074 Communication Parity
Selection
00: No parity
00 −01: Even
02: Odd
C075 Communication Stop Bit
Selection
1: 1 bit
1 −
2: 2 bits
C076 Operation Selection on
Communication Error
00: Trip
02 −
01: Trip after deceleration stop
02: Ignore
03: Free run
04: Deceleration stop
C077 Communications Error
Timeout Time
0.00: Timeout disabled
0.00 s
0.01 to 99.99
C078 Communication Wait Time 0. to 1000. 0. ms
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