MODEL: WL40EW2F

WL40EW2F SPECIFICATIONS

ES-9080 Rev.0 Page 5/7

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

MODBUS FUNCTION CODES & SUPPORTED CODES

Modbus function codes are shown below.

■ DATA AND CONTROL FUNCTIONS

CODE

NAME

01

Read Coil Status

Digital output from the slave (read/write)

02

Read Input Status

Status of digital inputs to the slave (read only)

03

Read Holding Registers

General purpose register within the slave (read/write)

04

Read Input Registers

Collected data from the eld by the slave (read only)

05

Force Single Coil

Digital output from the slave (read/write)

06

Preset Single Registers

General purpose register within the slave (read/write)

15

Force Multiple Coils

Digital output from the slave (read/write)

16

Preset Multiple Registers

General purpose register within the slave (read/write)

■ EXCEPTION CODES

CODE

NAME

06

Slave Device Busy

Device’s Modbus/TCP request queue is full.

11

Gateway Target Device Failed To Respond

Response from 900MHz band wireless device (child) is error, or response

timeout occurred.

Note: When 900 MHz band wireless device (child) returns an exception code other than the above, the exception code is directly transmit-

ted to upper devices.