Simultaneous N:n Networking And Modbus Communication - Mitsubishi FX3U Series User Manual

FX Series Programmable Controllers
3U
User's Manual - MODBUS Serial Communication Edition
5.3

Simultaneous N:N Networking and MODBUS Communication

When MODBUS communication and N:N Network are used simultaneously, N:N Networking must be setup
first (at program step 0). After which it is possible to program the MODBUS communication setup, as shown
below.
N:N Networking
Setup on Channnel 1
M8038
0
MODBUS Serial
Communication
Setup on Channel 2
M8411
26
30
K0 D8176
MOV
K2 D8177
MOV
K0 D8178
MOV
K3 D8179
MOV
K5 D8180
MOV
H1097 D8420
MOV
H11 D8421
MOV
K10 D8431
MOV
H1 D8434
MOV
H11 D8435
MOV
K100 D8436
MOV
5.3 Simultaneous N:N Networking and MODBUS
Program for setting up N:N Networking
For more details on N:N Networking, refer to the
FX Series Programmable Controller User's
Manual - Data Communication Edition.
Program for setting up a MODBUS Slave
The communication
format is set.
8bit / Even / 1-bit / 19200bps / RS485
The protocol is set.
MODBUS Slave / RTU Mode
Message to Message Delay: 10ms
Slave Node Address: Slave Number 1
The Communication
Status Information
Setup is set.
Store Counter and Log to D Devices
Communication Status Device Range Setup:
Storage Head Device = D100
5 Communication Setup
b15 b0
0001 0000 1001 0111
1 0 9 7
b15 b0
0000 0000 0001 0001
0 0 1 1
b15 b0
0000 0000 0001 0001
0 0 1 1