MODEL: R3-NE1

R3-NE1 SPECIFICATIONS

ES-8361 Rev.24 Page 4/8

https://www.m-system.co.jp/

■ Exception Codes

CODE

NAME

01

Illegal Function

X

Function code is not allowable for the slave

02

Illegal Data Address

X

Address is not available within the slave

03

Illegal Data Value

X

Data is not valid for the function

04

Slave Device Failure

05

Acknowledge

06

Slave Device Busy

07

Negative Acknowledge

08

Memory Parity Error

■ Diagnostic Subfunctions

CODE

NAME

00

Return Query Data

X

Loop back test

01

Restart Comm. Option

X

Reset the slave and clear all counters

02

Return Diagnostic Register

X

Contents of the diagnostic data (2 bytes)

03

Change ASCII Input Delimiter

X

Delimiter character of ASCII message

04

Force Listen Only Mode

X

Force the slave into Listen Only Mode

MODBUS I/O ASSIGNMENT

ADDRESS

DATA TYPE

DATA

Coil (0X)

1 – 1024

Digital Output (discrete output)

Inputs (1X)

1 – 1024

Digital Input (discrete input)

1025 – 1040

Module Status

1041 – 1056

Error Status

1057 – 1072

Data Error Status

Input Registers (3X)

1 – 256

I

Analog Input

257 – 768

F

Analog Input

Holding Registers (4X)

1 – 256

I

Analog Output

257 – 768

F

Analog Output

I: Integer, 0 – 10000 (0 – 100%)

F: Floating (32-bit data cannot be accessed using oating addresses.)

Note: DO NOT access addresses other than mentioned above. Such access may cause problems such as inadequate operation.

“1,” and the unmounted slot to “0.”

R3-TSx, R3-RSx, R3-US4: Input burnout

R3-DA16A:

Power input in error or disconnected

R3-YSx:

Output current error (e.g. load unconnected)

R3-PC16A:

External power supply in error or disconnected

module. The bit corresponding to such module turns to “1.”