Sub-1GHz Wireless I/O Series
Long-Range Industrial Wireless Communication Up to 1 km with Multi-Hop Reliability
Control signal input/output and capture analog signals from up to 1 km (0.62 mile) away with highly reliable multi-hop communication and AES-encrypted data transmission.
Why Wireless I/O Matters for Industrial Applications
Traditional wired I/O systems face significant challenges in modern industrial environments
Expensive Cabling Costs
Installing cables across large facilities involves significant costs for materials, labor, conduit installation, and termination work
Long cable runs can require substantial capital investment for infrastructure alone
Layout Change Difficulties
Reconfiguring wired systems when moving equipment requires rewiring entire sections
Extended downtime per layout change, blocking production and revenue during reconfiguration
WiFi Interference Issues
WiFi networks can interfere with wireless sensors, causing potential dropouts and false readings
Significant packet loss in facilities with many WiFi access points can affect reliability
Limited Range Problems
Standard industrial wireless technologies have limited range coverage
Cannot effectively monitor tanks, silos, or equipment spread across large outdoor yards
Single Point of Failure
If one wireless relay node fails, entire branch of network goes offline
Loss of visibility into critical equipment until technician manually repairs node
Complex Programming Required
Setting up wireless I/O requires custom firmware, network configuration, and scripting knowledge
Extended engineering time per deployment, potentially requiring external consultants
Multi-Hop Communication Solution
See how automatic alternate routing keeps your wireless I/O system online even when obstacles block direct communication paths.
These challenges can result in substantial costs from cabling infrastructure, downtime, and ongoing maintenance requirements.
Sub-1GHz Long-Range Wireless with Multi-Hop Reliability
Instead of dealing with expensive cabling or unreliable wireless, CONPROSYS Wireless I/O uses Sub-1GHz technology with automatic mesh networking for reliable industrial communication.
1 km Long-Range Communication
Sub-1GHz wireless band (902-928 MHz, 863-870 MHz)
Covers entire facility without repeaters, reaches distant equipment across large outdoor yards
Excellent transmission distance with low-power specified Sub-1GHz wireless communication
Multi-Hop Automatic Routing
Automatic alternate route finding
System stays online even if one node fails - no manual reconfiguration needed
The system ensures continuous communication by automatically looking for alternate routes if communication between units is interrupted
Zero WiFi Interference
Sub-1GHz frequency (not 2.4 GHz)
Operates in clear spectrum, immune to WiFi congestion and interference
Ideal for environments with many Wi-Fi (2.4 GHz) wireless communication channels and signal sources
AES-Encrypted Security
AES-encrypted data communication
Industrial-grade security prevents unauthorized access and data tampering
AES-encrypted data communication ensures secure transmission
How Wireless I/O Fits Into Your Industrial Ecosystem
Understand the complete data flow from control systems to field equipment. The master gateway bridges Ethernet networks with Sub-1GHz wireless slave units for long-range industrial I/O.
Technical Specifications:
- Master Gateway:GW1-ETH-WQ converts Ethernet (Modbus TCP) to Sub-1GHz wireless
- Slave Units:Up to 128 devices (theoretical), actual depends on data collection interval
- Wireless Range:1 km (0.62 mile) line-of-sight
- Multi-Hop:Automatic alternate routing if direct communication fails
- Encryption:AES-encrypted data transmission
- Frequency Bands:USA (902-928 MHz), EU (863-870 MHz), China (868-868.6 MHz)
Source: CONPROSYS-MASTER-REFERENCE-PART9.md lines 7-10 (models), 11-23 (multi-hop), 32-98 (usage patterns)
Key Architecture Benefits:
- Long-Range Coverage: 1 km wireless communication eliminates expensive cabling across large facilities
- Multi-Hop Reliability: Automatic alternate routing ensures continuous operation even if one node fails
- Flexible Integration: Connect to Windows PC, PLC, or M2M Controller via standard Modbus TCP protocol
- Scalable Network: Support up to 128 slave units for comprehensive facility-wide monitoring
Complete Wireless I/O System
Master gateway and slave I/O modules for complete wireless control up to 1 km range
Sub-1GHz Wireless Ethernet Gateway
Wireless I/O master unit
- Ethernet to Sub-1GHz wireless conversion
- Master gateway for wireless I/O network
- Modbus TCP communication support
- Up to 128 slave units (theoretical)
Sub-1GHz Wireless Isolated Digital I/O Terminal
Wireless I/O slave unit
- 4 photocoupler-isolated inputs
- 4 photocoupler-isolated outputs
- Current sink output support
- P2P (Peer-to-Peer) mode support
Sub-1GHz Wireless Analog Input Terminal
Wireless I/O slave unit
- 4-channel analog input
- 10-bit resolution
- Bipolar ±10 V input range
- Slave unit for wireless system
Four Usage Patterns
Discover 4 deployment configurations: Windows PC remote I/O, PLC integration, M2M Controller connection, and P2P peer-to-peer mode for direct device communication.
Optional Accessories
Mounting Bracket
DIN rail mounting bracket
External Antenna
Extension cable (3m)
AC Adapter
90-264 VAC to +12 VDC 1A
CE, FCC, UL, RoHS certified
What Makes Sub-1GHz Wireless Superior
Industrial-grade features for mission-critical wireless I/O applications
Multi-Hop Communication Mode
The system ensures continuous communication by automatically looking for alternate routes if communication between units is interrupted
No single point of failure, network self-heals automatically
If Slave Unit 2 loses connection to Master, it routes through Slave Unit 1 or 3 automatically
1 km Long-Range Communication
Long-range communication of up to 1 km (0.62 mile) at low-power specified Sub-1GHz wireless communication
Cover entire facility without installing repeaters or additional gateways
Monitor tank farms, outdoor equipment yards, multi-building campuses
AES-Encrypted Data
AES-encrypted data communication
Industrial-grade security prevents data interception and unauthorized access
Critical infrastructure, pharmaceutical plants, defense facilities
PC-Less P2P Mode
In P2P mode, two digital I/O terminals can be placed opposite each other with signals transmitted directly, enabling the input of one device to be reflected as the output of the other without a master unit, PC, or PLC at distances up to 1 km
Direct device-to-device wireless link with zero programming or gateway needed
Wireless remote start/stop buttons, emergency stop signals across yard
Modbus TCP Integration
Access the master unit via Modbus TCP for wireless/remote I/O communication
Seamless integration with existing PLC, SCADA, HMI systems
Connect to leading industrial PLC brands via standard Modbus
Windows Driver API-TOOL
Use the API-TOOL for Windows driver library (free download) to create application software for PCs in multiple programming languages
Develop custom monitoring apps in C#, Python, VB.NET without firmware coding
Custom data logging, alarm notification systems, SCADA integration
Wide Operating Temperature
Usable in ambient temperatures of −20 to 60°C (−4 to 140°F)
Deploy in harsh outdoor environments, freezers, or high-heat areas
Cold storage monitoring, outdoor tank farms, boiler rooms
Compact DIN Rail Design
Dimensions: 25.2 × 94.7 × 124.8 mm (W × D × H). Optional DIN rail mounting bracket included
Install in crowded control panels, no custom enclosures needed
Retrofit into existing cabinets without panel modifications
P2P Mode Signal Mapping
Understand how direct signal reflection works between two DIO-0404LY-WQ units in peer-to-peer mode. See how outputs of one device automatically become inputs of the other without any master unit or programming.
Regional Deployment Standards
Discover frequency bands and certifications for USA (902-928 MHz), EU (863-870 MHz), and China (868-868.6 MHz). Ensure compliance with local regulations before deployment.
Complete Technical Specifications
Detailed specifications for all wireless I/O models and regional standards
*Actual number depends on communication environment and data collection interval
• USA: 902-928 MHz
• EU: 863-870 MHz
• China: 868-868.6 MHz
Need Complete Datasheets?
Download detailed technical documentation including wiring diagrams, dimensions, and integration examples
Request Technical Documentation9 Industries Already Using Wireless I/O to Solve Real Problems
From water treatment to airport baggage systems, Sub-1GHz Wireless I/O delivers reliable data collection in harsh environments. Here's how different industries deploy these systems.
Water Treatment Plants
Monitoring multiple treatment tanks spread across 5-10 acre facility
Multi-hop wireless network connects all sensors without trenching cables
Level sensors, flow meters, valve status, chemical pumps
Covers large outdoor area with automatic routing if one node fails
Large Warehouse Temperature Monitoring
Frequent layout changes require constant rewiring of wired sensors
Wireless sensors easily relocate when racks/aisles reconfigured
Temperature/humidity sensors for cold storage zones
No downtime for sensor relocation, install new zones in 1 hour vs 2 days
Airport Baggage Systems
Conveyor system spans 500+ meters with WiFi interference from passenger devices
Sub-1GHz avoids 2.4 GHz congestion, reliable operation despite WiFi noise
Conveyor motor status, jam detectors, diverter positions
Zero interference from thousands of passenger smartphones/laptops
Tank Level Monitoring
Multiple storage tanks in outdoor yard 300m from control room
1 km wireless range reaches all tanks without repeaters
Ultrasonic/radar level sensors, high/low alarms
Real-time monitoring without expensive cable trenching across yard
Environments with WiFi Congestion
Manufacturing facility with 50+ WiFi access points causing sensor dropouts
Sub-1GHz operates in clear spectrum, no WiFi conflicts
Production counters, machine status, quality gates
0% packet loss vs 20-30% with 2.4 GHz wireless
Outdoor Equipment Monitoring
Pumps, generators, cooling towers spread across campus in -20°C to 60°C weather
Wide temperature rating and long range cover outdoor installations
Pump vibration, generator runtime, cooling tower flow
Operate in harsh outdoor conditions without environmental enclosures
Emergency Stop Systems (P2P Mode)
Need wireless E-stop button 500m away from machine with zero latency
P2P mode creates direct wireless link without gateway/master unit
Emergency stop buttons, safety interlocks
Direct device-to-device communication, no network delays
Remote Pump Stations
Unmanned pump station 800m from control building needs monitoring
Single wireless link provides pump status, pressure, flow data
Pump on/off status, discharge pressure, flow rate
Monitor remote equipment without fiber optic or cellular modem
PLC Expansion I/O
PLC rack full, need 16 more I/O points but no space for expansion cards
Wireless slave units add I/O without touching PLC or rewiring cabinets
Additional sensors, switches, indicators, control relays
Add I/O in 30 minutes vs 3 days for cabinet rebuild
Complete Network Topology
See a large-scale deployment example with 7 slave units across 3 zones (Water Treatment, Pump Station, Chemical Dosing) demonstrating multi-hop routing and automatic failover capabilities
What do all these applications have in common? Long distances, harsh environments, and the need for reliable wireless communication without trenching cables or running fiber. That's exactly where Sub-1GHz Wireless I/O excels.
From Box to Wireless Data Collection in 4 Simple Steps
No programming experience required. No software installation on your PC. Just mount, wire, and configure. Here's exactly how to deploy your wireless I/O system.
Plan Network Topology
Design your wireless network layout before installation
Use multi-hop routing for complex layouts - system automatically finds alternate routes if direct path fails
Mount Hardware
Install master gateway and slave units on DIN rail
Compact 25.2 × 94.7 × 124.8 mm dimensions fit in crowded control panels without modifications
Power & Wiring
Connect power supply and wire sensors/actuators
Photocoupler isolation (2500Vrms) protects sensitive equipment from ground loops and electrical noise
Configure Communication
Set up communication protocol for your application
Most PLCs (Siemens, Allen-Bradley, Schneider, Mitsubishi, Omron) support Modbus TCP natively - no special drivers needed
Installation Complete
Your wireless I/O system is now operational and collecting data. The master gateway communicates with all slave units via Sub-1GHz wireless, and your control system (PC/PLC/M2M Controller) can access I/O data via Modbus TCP. Total setup time: typically 1-2 hours for a complete system.
Need Detailed Installation Documentation?
Download the complete installation manual, wiring diagrams, and API-TOOL software from CONTEC website
Download Installation PackageFrequently Asked Questions About Wireless I/O
Real questions from engineers, facility managers, and system integrators. If you don't see your question here, contact our technical support team—they respond within 24 hours.
Up to 1 km (0.62 mile) with low-power Sub-1GHz wireless communication. Actual range depends on environment (obstacles, metal structures). Multi-hop mode extends range by routing through intermediate slave units.
Still have questions about wireless I/O deployment?
Contact Technical SupportReady to Deploy Wireless I/O?
Get expert guidance on selecting the right wireless I/O configuration for your facility. No programming required. No monthly fees. No cloud dependency. Just reliable Sub-1GHz wireless I/O that works in harsh industrial environments.
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