Remote I/O system CN-8031 Network Adapter for Modbus TCP protocol (Bus coupler)
CN-8031 Modbus TCP Network Adapter supports the standard Modbus TCP Server Communication, and Ethernet supports the cascade function of dual-port switches.This adapter supports access to 5 Modbus TCP clients simultaneously, supports Modbus function code 01/02/03/04/05/06/15/16 /23, supports the Modbus application of watchdog, supports the process data maximum sum of input and output of 8192 bytes, and supports number of the extension IO module of 32. 
Module carries with the diagnostic function and it could monitor the communication status of IO module in real time.

Technical Parameter

Adapter Hardware Parameter
System Power Nominal Reverse Protection: YES :24Vdc, Range: 9-36Vdc
Power Consumption:30mA@24Vdc
Internal Bus Supply
Current Max: 2.5A@5VDC
Isolation:System Power to Field Power Isolation
Power Supply Nominal: 24Vdc, Range:22-28Vdc
Field Power Current:Max. DC 8A
IO Modules Supported:32 pcs
Wiring:Max.1.5mm²(AWG 16)
Mounting Type:35mm DIN-Rail
Size:115*51.5*75mm
Weight:130g

Environment Specification
Operation Temperature -40~85ºC
Operation Humidity 5%-95% (No Condensation)
Protection: IP20

Modbus-RTU Parameter
Protocol: Modbus-RTU/ASCII
Function Code: 01 / 02 / 03 / 04 / 05 / 06 / 15 / 16
Baud Rate: 2400~115200bps
Station No. : 1~63(Dial-code switch configuration),64~247(Software configuration)
Interface: 5 Pin screw terminal
Data Bits: 7, 8
Parity Checking: None, Even, ODD
Stop Bit: 1, 2
Max. bus length: 1200m( RS485, 2400 baud rate)
Terminal resistance and offset resistance: Dial-code switch configuration

Dimension

Wiring terminal

Installation

DIN-Rail