Bit Address; Register Address - Mitsubishi Electric NZ2FTGN User Manual

Bit address

The NZ2FT-MT accesses Packed process data of inputs and Packed process data for outputs stored in the bit address in
units of bits by specifying the bit address.
Bit address Possible
access
(Hexadecimal) (Decimal)
0000H to 1FFFH 0 to 8191 Read only
8000H to 9FFFH 32768 to Read/write
40959
*1 For details on the specification method, refer to the following.
Page 299 Simple CPU communication settings
Page 302 Automatic communication parameter

Register address

The NZ2FT-MT accesses the data stored in units of words by specifying the register address.
The following lists the MODBUS standard functions used for each process.
Processing
Read in units of words
Writing in units of words
Read after writing in units of words
Specification method
Master module: RJ71EN71
Communication Register
pattern type
Read Input
Read Coil
Write Coil
MODBUS standard function to be used
Function code 03: Read holding register areas
Function code 04: Read holding register areas
Function code 06: Write single register area
Function code 16: Write multiple coils
Function code 22: Mask write holding register
Function code 23: Read/write multiple register areas
*1
Data width
Master module:
QJ71MT91
Target MODBUS
device type
specification
Page 323
0200H: Read inputs
Data width
used by the I/O
0100H: Read coils
module
0001H: Write single
coil
Target register
Possible access is read/write.
Available access is read only.
Possible access is read/write or write only.
Possible access is read/write.
11.7 MODBUS Standard Functions and MODBUS Devices
Item
Packed process data for
inputs
Packed process data for
outputs
11 NZ2FT-MT
309
11