Wireless ON OFF Control Module 915MHz Lora Wireless I O Module 4DI 4DO Wireless PLC

Wireless ON OFF Control Module 915MHz Lora Wireless I O Module 4DI 4DO Wireless PLC

1. LS-RDIO series module general introduction

LS-RDIO Modbus RTU is an industrial controller designed by Lensen Technology. It supports point to point, point to multi-points wireless DI, DO, AI, AO collection and control. This transceiver has the advantage of easy installation, no program required, no communication fee. It is reliable and cost-effective substitution for rail signal cable, slip ring signal wire.

LS-RDIO0404 has 4 inputs 4 relay outputs and 1 RS485(wireless RS485 customized). Power output we have 2 versions, one is 100mW for 1km LOS control distance, and another one is 1W for 3km LOS control distance.

2. Application Field

LS-RDIO series I/O module is widely used in industry automation like factory central data process, pump control, tank level monitoring, Conveyor Control,oil monitoring, mining machinery, environment monitoring equipment, lifting devices, robots control, filling machine, mixing equipment, logistic line, AGV etc.

3. Parameter of RDIO0404

4. Modbus RTU communication and value calculation

A. Register types:

1) Coil register:

Input: it is not convenient to read 8 I/O at one time. In order to control each I/O correspondingly, we defined coil register. The register address is 0x0000-0x0007.

Output: it is not convenient to control 8 I/O at one time. In order to control each I/O correspondingly, we defined coil register whose address is 0x0020-0x0028.

Note: The coil is not extra resource, just a method for register addressing---addressing by bit.

2) Holding register:

a. value of input channels: 0x0000

Note: addressing by bit means we only use the first 8 bits; bit0 to bit7 corresponds with I / O1 to I / O8;

b: feedback and value of output channels: 0x0040

Note: addressing by bit means bit 0 corresponds with 1/O1, bit 7 corresponds with 1/O8, bit 8-bit 15 corresponding value we write 0.

3) Reading method:

Coil register: Directly read the responding register. 1 means OFF, 0 means ON.

Holding register: Can read all 8 inputs state one time. We only use bit0-bit7 of this 16-bit register; each bit represents the state of an input.

4) Control methods:

a. Use the coil--- directly writes the corresponding coil register you can control corresponding output.

b. Use the holding register--- eight outputs share 1 holding register, so you can manage each bit separately to control the responding output.

B. About register control