Both models use the same 8DI + 8DO I/O architecture, with the T and R identifiers defining the transmitter and receiver roles in the wireless system.
Product Models
| Model | Function | Digital I/O | Communication |
|---|---|---|---|
| DSWM-T8DI+DO-RS485 | Wireless I/O Transmitter | 8 DI + 8 DO | LoRa + RS-485 |
| DSWM-R8DI+DO-RS485 | Wireless I/O Receiver | 8 DI + 8 DO | LoRa + RS-485 |
Key Features
- 8 Digital Inputs + 8 Digital Outputs
- Long-range LoRa wireless communication
- RS-485 Modbus RTU interface
- Industrial remote I/O architecture
- 9–36 VDC wide-range power supply
- NPN compatible digital inputs
- Relay-type digital outputs
- Up to 5 A relay contact capacity
- DIN rail and positioning-hole mounting
- LED status indication
- Adjustable wireless parameters
- Multiple communication data rates
- Industrial three-proof coated housing
- Wide operating temperature range
- Suitable for remote acquisition and control
This platform supports LoRa, RS-485 and RJ45 interfaces, while the Denki Seigyo models specified here are positioned around LoRa + RS-485 industrial wireless I/O.
Model Code Explanation
DSWM-T8DI+DO-RS485
| Code | Description |
|---|---|
| DSWM | Denki Seigyo Wireless Module |
| T | Transmitter |
| 8DI | 8 Digital Inputs |
| +DO | Digital Output Function |
| RS485 | RS-485 Communication |
DSWM-R8DI+DO-RS485
| Code | Description |
|---|---|
| DSWM | Denki Seigyo Wireless Module |
| R | Receiver |
| 8DI | 8 Digital Inputs |
| +DO | Digital Output Function |
| RS485 | RS-485 Communication |
Complete Model Meaning
DSWM-T8DI+DO-RS485 = Denki Seigyo Wireless I/O Transmitter with 8 Digital Inputs, Digital Outputs and RS-485 Communication.
DSWM-R8DI+DO-RS485 = Denki Seigyo Wireless I/O Receiver with 8 Digital Inputs, Digital Outputs and RS-485 Communication.
Wireless Communication
The platform uses LoRa industrial wireless technology and supports adjustable wireless parameters for long-distance remote I/O communication. The reference specification lists a frequency range of 410.125–493.125 MHz, maximum transmit power of 30 dBm, and a stated transmission distance of up to 10 km in a clear/open environment under the specified antenna, power and installation conditions.
| Parameter | Reference Specification |
|---|---|
| Wireless Technology | LoRa |
| Frequency Band | 410.125–493.125 MHz |
| Maximum Transmit Power | 30 dBm |
| Maximum Open-Area Distance | Up to 10 km* |
| Wireless Channels | 23 |
| Channel Setting | Software configurable |
| Air Data Rate | 2.4–62.5 kbps |
| Antenna | External SMA |
| Wireless Protocol | Modbus RTU |
*Actual range depends on antenna, installation height, obstacles, interference, regulatory limits and operating environment.
Digital Input Specifications
The DSWM Series is designed for connection to industrial switches, sensors, proximity sensors, photoelectric sensors, push buttons and PLC signals.
| Parameter | Specification |
|---|---|
| Number of Inputs | 8 |
| Input Type | NPN |
| Input Voltage | 12–24 VDC |
| Maximum Collection Frequency | Up to 1 kHz |
| Status Indication | Individual LED |
The platform specifies NPN compatible inputs and a maximum collection frequency of 1 kHz.
Digital Output Specifications
The digital outputs can be used for remote control of relays, contactors, solenoid valves, indicator lamps and other compatible industrial loads.
| Parameter | Specification |
|---|---|
| Number of Outputs | 8 |
| Output Type | Relay |
| Output Mode | Level Output |
| Contact Rating | Up to 5 A @ 30 VDC |
| Contact Rating | Up to 5 A @ 250 VAC |
| Common Terminal Capacity | Up to 8 A per common COM* |
| Status Indication | Individual LED |
RS-485 Communication
The DSWM Series provides RS-485 Modbus RTU communication for integration with PLCs, HMIs, SCADA systems and industrial controllers.
| Parameter | Specification |
|---|---|
| Interface | RS-485 |
| Protocol | Modbus RTU |
| Baud Rate | 2400–230400 bps* |
| Device Address | Configurable |
| Application | Remote I/O Communication |
Industrial Construction
The platform uses an industrial enclosure with three-proof coating designed for resistance to:
- Fungus
- Humidity
- Salt spray
This construction makes the platform suitable for industrial environments where moisture, contamination and environmental exposure can affect conventional electronic equipment.
Mechanical Specifications
| Parameter | Specification |
|---|---|
| Dimensions | 110 × 40 × 100 mm |
| Mounting | DIN Rail / Positioning Holes |
| Antenna Connection | SMA |
| Housing | Industrial Enclosure |
| Installation | Panel / DIN Rail |
Environmental Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature | −40°C to +85°C |
| Operating Humidity | 5–95% RH |
| Condensation | Non-condensing |
| Storage Temperature | −40°C to +105°C |
| Storage Humidity | 5–95% RH |
Wireless Remote I/O Architecture
The DSWM Series can be used to create a wireless connection between two remote automation locations.
Field Sensors / Switches
↓
DSWM-T8DI+DO-RS485
↓
LoRa Wireless Communication
↓
DSWM-R8DI+DO-RS485
↓
PLC / HMI / Control Panel / Remote Equipment
This architecture allows digital signals to be exchanged without installing long multi-core signal cables.
Typical Applications
The DSWM Series is suitable for:
- Factory Automation
- Conveyor Systems
- Machine Automation
- Remote I/O Expansion
- Crane & Hoist Systems
- Material Handling
- Warehouse Automation
- Packaging Machinery
- Water Treatment Plants
- Agricultural Automation
- Process Monitoring
- Remote Machine Control
- Industrial Equipment Retrofitting
- PLC Remote I/O
Advantages of Wireless I/O
Reduced Wiring
Replace long digital signal cables with industrial wireless communication.
Lower Installation Cost
Particularly useful when field equipment is separated from the main control panel by a long distance.
Easy System Expansion
Additional remote I/O points can be introduced without installing extensive new cable infrastructure.
Industrial Communication
RS-485 Modbus RTU provides a familiar interface for PLC and automation-system integration.
Long-Range Wireless
LoRa technology is designed for long-distance communication with low data rates and high link budget.
Why Choose Denki Seigyo DSWM Series?
- 8DI + 8DO industrial wireless I/O
- LoRa long-range communication
- RS-485 Modbus RTU
- NPN digital input compatibility
- Relay outputs for industrial loads
- Wide 9–36 VDC power supply
- DIN rail mounting
- Industrial environmental protection
- LED status indication
- Suitable for remote automation and machine control
Ordering Information
| Model | Role | Digital Input | Digital Output | Wireless | RS-485 |
|---|---|---|---|---|---|
| DSWM-T8DI+DO-RS485 | Transmitter | 8 | 8 | LoRa | Yes |
| DSWM-R8DI+DO-RS485 | Receiver | 8 | 8 | LoRa | Yes
|
Frequently Asked Questions
What is the DSWM Series?
The DSWM Series is a wireless industrial remote I/O system designed to transmit and receive digital signals using LoRa wireless communication.
How many I/O channels are available?
The DSWM models provide 8 digital inputs and 8 digital outputs.
Does the DSWM Series support RS-485?
Yes. The specified models include an RS-485 interface with Modbus RTU communication.
What type of digital inputs are supported?
The platform supports both NPN and digital inputs with a 12–24 VDC input range.
What type of outputs are provided?
The platform uses relay-type digital outputs, with a stated contact capacity of up to 5 A at 30 VDC or 250 VAC.
What is the wireless range?
This specifies up to 10 km in a clear, open environment under particular antenna, power and installation conditions. Actual range will vary significantly with the installation environment.
Can the DSWM Series be used with a PLC?
Yes. The RS-485 Modbus RTU interface is designed for integration with industrial controllers and PLC-based systems.
Product Summary
The Denki Seigyo DSWM-T8DI+DO-RS485 and DSWM-R8DI+DO-RS485 provide a powerful solution for industrial wireless remote I/O. Combining 8 digital inputs, 8 relay outputs, LoRa long-range communication and RS-485 Modbus RTU, the system enables reliable signal acquisition and control where conventional wiring is difficult, expensive or impractical.
DENKI SEIGYO
Industrial Automation Components
