1W RS232 RS485 Wireless Radio Modem Modbus DTU PLC Communication

1W Wireless Radio Modem 1W RS232 RS485 Modbus DTU PLC Wireless Communication

General Introduction

LS-R324 wireless DTU whose transmission distance reaches 3km LOS, supports wireless communication between Siemens S7-200, S7-300 series PLC, Schneider PLC, Mitsubishi PLC, ABB PLC etc. LS-R324 supports Modbus protocol, including Modbus ASCII and Modbus RTU protocol, PPI protocol.

LS-R324 DTU can also connect with VFD, HMI, PC for wireless communication. It supports point to point, point to multi-points wireless data transmission. Wireless solution has the advantage of keep users from wiring cables in dangerous field, easy to set up, no need program knowledge. It is a reliable and competitive solution.

Parameter:

Power output: 24V DC

RF power: 1W

Air baud rate: 1,200/2,400/4,800/9,600/19,200bps choose one

Interface baud rate: 1,200/2,400/4,800/9,600/19,200bps programmable

Frequency band: 433, 450, 470 or others

Interface: RS-232, RS-485 and USB

Communication mode: Half-duplex

Channel: 15 channels

Receive current: <45mA

Receive sensitivity: -123dBm @ 1,200bps); -118dBm @ 9,600bps)

Transmitting current: <500mA

RF line-of-sight range: 2km (BER=10-5@9600bps); 3km (BER=10-5 @ 1,200bps)

Size: 175*115*32mm (without antenna port)

About the LED indicator

a. When module is power on, POWER LED is always ON (red).

b. When module enter to set mode (DIP 8 ON), SET LED is always ON (red).

c. When module is transmitting,

     if you use RS232 port, RS232 LED blinks (green) regularly.

     if you use RS485 port, RS485 LED blinks (green) regularly.

     if you use USB port, USB LED blinks (green) regularly.

d. When module is receiving, RF LED blinks (blue) regularly.

Application Example