Modbus Device Address Allocation; Modbus Device Address Allocation (Default Values) - Mitsubishi FX3U Series User Manual

FX Series Programmable Controllers
3U
User's Manual - MODBUS Serial Communication Edition
Command Code
0x0B
0x0C
0x0F
0x10
0x11
0x16
0x17
9.2

MODBUS device address allocation

The following information details device allocation when using default values and how to create user defined
device address allocation values.
9.3

MODBUS device address allocation (Default Values)

The following table provides the default values for MODBUS address allocation for Bit devices and word
devices.
Bit device:
Discrete Inputs (Read Only)
0x0000-0x1DFF
0x1E00-0x1FFF
0x2000-0x2FFF
0x3000-0x31FF
0x3200-0x32FF
0x3300-0x33FF
0x3400-0x34FF
Subcommand
Command Name
Code
Get Communication Event
Counter
Get Communication Event
Log
Write Multiple Coils
Write Multiple Registers
Report Slave ID
Mask Write Register
Read/Write Multiple
Registers
MODBUS Binary Device Address
Coils (Read / Write)
0x0000-0x1DFF
0x1E00-0x1FFF
0x2000-0x2FFF
0x3000-0x31FF
0x3200-0x32FF
0x3300-0x33FF
9.2 MODBUS device address allocation
Read communication event counter
Read communication event log
Write multiple binary (R/W) devices
Write multiple 16 bit (R/W) registers
Slave ID details:
- PLC run/stop state
RUN Status: RUN = FFH
STOP = 00H
- Slave ID F3H (FX
computer link)
Note: No additional data is supported
Manipulate slave register with AND Mask / OR
Mask
Read/Write multiple 16 bit (R/W) registers
M0-M7679
M8000-M8511
S0-S4095
TS0-TS511
CS0-CS255
Y0-Y377
- X0-X377
9 Slave Specification
Details
- same as
3U
FX Device
3U
1
2
3
4
5
6
7
8
9
10
85