33MHz 2km Remote I O Module Control RS485 Connect PLC 2AI Collect
4-20mA Analog Signal 2DO
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
Wireless RTU features
- Portable device, DIN-rail mounting for easy installation
- Isolated inputs
- LEDs for power supply, communication, input, output status
- Flexible networking, point to point or point to multipoints
- DIP to change different modes
- Different types of I/O, DI, DO, AI, AO are available
- I/O expandable
- Short delay time
- Support I/O reduction, field input, remote output
- Easy handing on RS485 network, support Modbus RTU protocol
- Support on-line upgrade. Can configure by customer in setting
mode
Projects Description:
1. Customer needs to minitor 10 tanks.
2. Intake or glow-off water by start/off the pumps or the valves.
3. Distance is within 1km.
4. Need wireless solution
LS-RAI02
| Frequency | 433MHz or 450MHz or 470MHz |
| Power output | 100mW(600m),1000mW(3000m) |
| Products | 2AI,4AI,2AO,4AO |
| Input type | 4-20mA or 0-5V or 0-10V |
| Output type | 4-20mA or 0-5V or 0-10V |
| Resolution ratio | 24 bit |
| Accuracy | ±0.02% |
| Power supply | 9-36V DC usually use 24V DC |
| Interface | RS-485 |
| Channel No. | 16ch default, can program via DIP switch |
| Antenna | Sucker antenna with 1.5m cable |
| Working temperature | -35℃~+75℃ industrial |
| Working humidity | 10%～90% relative humidity, no condensation |
| Dimension | 2AI,4AI | 115×90×40(mm) |
| 2AO,4AO |
| Fix way | Standard 3.5 inch industrial DIN guild rail |
LS-RDIO0202
| Parameter |
| Power output: | 1W (or 100mW version) |
| Power supply: | 9V-30V (usually choose 24V DC or 12V DC) |
| Control distance: | 3km (or 1km version) |
| Baud rate: | 1200bps |
| Receiving sensibility: | -123dBm@1200bps, -118dbm(9600bps) |
| Networking |
| Networking: | Point to point and point to multipoint |
| Protocol: | Modbus RTU protocol |
| Port Description |
| Input: | 2 active inputs (passive customize), isolated |
| Output: | 2 passive relay outputs, isolated contact max load AC250V/5A,DC30V/5A (active outputs 0-5V customize) |
| Communication port | RS485 (wireless RS485 customize) |
| Current |
| Transmit current: | <600mA (or 100mA version) |
| Receiving current: | <50mA (or 20mA version) |
| General |
| Frequency: | 433MHz, 400, 450, 470 or other band |
| Channel No: | 16 channels, can change via DIP switch |
| Physical Properties |
| Dimension: | 115×90×40(mm) |
| Antenna Connector: | SMA,vehicle antenna with 1.5m cable |
| Temperature: | -35℃~+75℃( industrial) |
| Mounting method: | Standard 3.5 inch industrial guild rail |
It is 1 master to many slaves application. Support Modbus RTU
protocol.
Master is the PLC at RO plant. This side we recommend a LS-R324 to
connect with PLC and RO Plant. LS-R324 is to collect all slave's
data, forward to PLC for analysis. PLC process data, give command
to RO Plant.
Slaves are the sensors on tank, the valves and the pumps.
a. About level sensors, there are 2 types, because there is salt
water, to avoid Corrosion, we don't suggest thrown-in type sensor. Ultrasonic level sensor is
more recommended.
Each sensor, you need an analog I/O module to collect and transmit
the level sensor's 4-20mA signal to PLC. Use our LS-RAI02 module,
it has 2 analog inputs.
b. About the pump, each one, you need a digital I/O module to start
or close the pump. It is to control when we should intake water
according tank level. Here we recommend LS-RDIO0202, it has 2
digital inputs and 2 relay outputs.
c. About the valves, each one, you need a digital I/O to start or
close the valve. It is to control when we should blow off water
according the tank level. Here we recommend LS-RDIO0202, it has 2
digital inputs and 2 relay outputs.
