General Introduction
LS-R314 wireless DTU, transmission distance reaches 3km LOS, with small size, plastic enclosure, high reliability, it is widely used for wireless communication between PLC and PC/HMI.
LS-R314 supports wireless communication between Siemens S7-200, S7-300 series PLC, Schneider PLC, Mitsubishi PLC, ABB PLC etc. It supports Modbus protocol, including Modbus ASCII and Modbus RTU protocol, PPI protocol. LS-R314 DTU can also connect with transducer, HMI or other RS485 devices. 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 wire cable, shorten projects time and maintenance cost. It is a reliable and competitive solution.
Application Field
* To collect PLC/HMI for wireless data transmission
* Pressure, flow rate, temperature etc data collections, wireless transmission and control in water/waste water treatment field
* Wind speed, rainfall, humidity etc data collection, wireless transmission and control at whether monitoring station
* Temperature, humidity, concentrations of CO2 etc data collection, wireless transmission and control in agriculture greenhouse
* AGV wireless monitoring and control
Technical specification
| Frequency | 433MHz or 450MHz, 470MHz |
| Power Output | 1W (3000m LOS) |
| Protocol support | Standard Modbus or PPI |
| Power supply | 9-36V DC usually use 24V DC or 12V DC |
| Interface | RS-485 |
| Channel No. | 16 channels default |
| Temperature | -35℃~+75℃ (industrial) |
| Dimension | 80×60×30(mm) exclude antenna |
Advantage of wireless solution
- No wires to bury or maintain, no need to drill holes on wall
- Reliable communication in all direction,any terrain, regardless of hills, walls, trees
- Cost saving in installation and maintenance
- Radio based, no need internet and monthly fee, full ownership of the system
- 4G based, high speed, no distance limit
wireless delay time.
Wireless products have a delay time. Different RF baud rate causes different delay time. Please refer the specific delay time below:
RF Date Rate (bps) | Delay Ts(mS) | RF Date Rate (bps) | Delay Ts(mS) |
| 1200 | 90 | 9600 | 12 |
| 2400 | 48 | 19200 | 6 |
| 4800 | 24 |
