Description
3Wire Industrial Zigbee IoT Gateway
RS2ZBEE Zigbee Serial Device Server & Modbus Gateway
3Wire RS2ZBEE is an industrial Zigbee serial device server for connecting serial field devices such as PLCs, meters, sensors, controllers, protection relays and Modbus RTU devices over a Zigbee wireless network.
It is designed for applications where cable installation is difficult, expensive or impractical. RS2ZBEE allows serial devices to be accessed from LAN / WLAN systems through Zigbee communication, while supporting direct TCP/IP access, Virtual COM operation, Modbus TCP gateway function and multiple wireless network modes.
IEEE 802.15.4 Zigbee
2.405 2.480 GHz
RS232 / RS485 / RS422
10/100 Mbps Ethernet
Star / Tree / Mesh
Modbus RTU to TCP
IoTWatt 4.0 Ready
Product Overview
RS2ZBEE provides a practical way to connect field devices without running long serial communication cables. A host PC, PLC or SCADA system can access remote serial devices through a Zigbee wireless link using direct IP communication or Virtual COM operation.
The gateway supports RS232, RS485 and RS422 devices and can operate in Modbus TCP Master, Modbus TCP Slave, Paired Mode and Bridge Mode. This makes it suitable for industrial communication retrofit, wireless Modbus extension and multi-device data collection.
Positioning: RS2ZBEE is an industrial Zigbee serial device server for wireless RS232 / RS485 / RS422 extension, Modbus RTU-to-TCP conversion and difficult-wiring applications.
Why RS2ZBEE Matters
RS2ZBEE helps connect distributed serial devices where running new RS485 or Ethernet cable is too costly, difficult or disruptive.
- Wireless serial bridge
- Difficult wiring solution
- Modbus extension
- Mesh networking
- Remote meter reading
- Virtual COM support
- IoTWatt gateway
Typical Communication Flow
RS2ZBEE links serial field devices to a Zigbee wireless network. The host system can then access remote devices through Ethernet, direct TCP/IP, Virtual Serial Port or Modbus TCP gateway mode.
1
PLC / Meter
Remote device or serial device network.
2
RS485 / RS232
Serial communication layer.
3
RS2ZBEE Slave
Wireless serial node.
4
Zigbee Wireless
Star, tree, mesh or repeater network.
5
Master / LAN
SCADA, PLC, EMS, BMS or IoTWatt.
Key Features at a Glance
Zigbee Wireless Serial Link
Links serial devices to a Zigbee network, reducing the need for long communication cables.
RS232 / RS485 / RS422
Provides terminal interface for RS485 / RS422 and DB9 interface for RS232 devices.
10/100 Mbps Ethernet
Supports Ethernet connectivity with direct TCP/IP and Virtual Serial Port operation.
Modbus TCP Gateway
Converts Modbus RTU to Modbus TCP for integration with SCADA, PLC and monitoring systems.
Industrial Protection
Includes serial isolation and Ethernet surge protection for industrial environments.
Multiple Zigbee Modes
Supports Multi-Serial, Star, Mesh and Tree modes for different site layouts.
Large Device Network
Supports RS485 / RS422 device networks and multiple Zigbee slave nodes per master.
Secure Channels
Supports secure data access with 16 encrypted Zigbee channels.
Software Configuration
Automatic discovery and configuration using 3Wire Device Management Software or web browser.
Supported Operating Modes
| Mode |
Description |
Typical Use |
| Serial Mode |
Point-to-point Zigbee link between a master and a remote serial device network. |
Replacing a long RS485 / RS232 cable with a wireless link. |
| Multi-Serial / Tree Mode |
One Zigbee master communicates with multiple Zigbee slave nodes in a tree arrangement. |
Collecting data from several remote panels, machines or metering points. |
| Mesh Mode |
Zigbee slave nodes can form a mesh network for wider coverage and flexible routing. |
Industrial areas with multiple distributed equipment points. |
| Mesh + Repeater |
Repeater nodes extend wireless coverage and improve communication reach between master and slave devices. |
Longer distances, obstacles, factory floors or remote equipment clusters. |
| Virtual COM Mode |
Maps the remote serial port as a local COM port on a host PC. |
Legacy software that still requires COM port communication. |
Technical Specifications Summary
| Category |
Specification |
| Product Type |
Industrial Zigbee serial device server and Modbus gateway. |
| Serial Interface |
RS485 / RS422 terminal and RS232 DB9. |
| Ethernet |
10M / 100M Ethernet with 2 kV surge protection. |
| Zigbee Standard |
IEEE 802.15.4. |
| Wireless Modes |
Multi-Serial, Star, Mesh and Tree. |
| Transmission Distance |
Up to 2000 m, depending on site conditions, antenna placement and obstacles. |
| Wireless Channels |
16 channels. |
| Frequency Range |
2.405 GHz to 2.480 GHz. |
| Transmit Power |
+25 dBm maximum. |
| Modulation |
DSSS. |
| Anti-Collision |
CSMA-CA and GTS CSMA-CA. |
| Serial Baud Rate |
1200 bps to 115200 bps. |
| Data Bits / Parity |
5 to 9 data bits; None, Odd, Even, Mark or Space parity. |
| Flow Control |
RTS / CTS, XON / XOFF or None. |
| Network Protocols |
Ethernet, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP and DNS. |
| Communication Modes |
TCP Server, TCP Client, UDP and UDP Multicast. |
| TCP Connections |
Supports up to 30 TCP clients in TCP Server mode and 7 destination IP addresses in TCP Client mode. |
| Device Capacity |
Up to 256 slaves on RS485 / RS422 bus and up to 32 Zigbee slaves per Zigbee master, subject to site design. |
| Isolation / Protection |
1500 V optical isolation on RS485 / RS422 data lines and 2 kV surge protection on Ethernet port. |
| Configuration |
3Wire Device Management Software and web browser configuration. |
| Virtual Port |
3Wire ComPort Emulator software. |
| Power Supply |
9 24 VDC with dual voltage input, screw terminal or DC jack. Confirm final input voltage against product label before installation. |
| Typical Current |
80 mA at 12 VDC; 40 mA at 24 VDC. |
| Dimensions |
94 mm L x 65 mm W x 25 mm H. |
| Operating Temperature |
-40°C to +85°C. |
| Humidity |
5% to 95% RH. |
Power note: Earlier information listed 9 24 VDC but also showed a 48 V current value. The page now keeps the safer 9 24 VDC range and removes the 48 V current item. Confirm final power supply rating against the product label before installation.
Applications and Best-Fit Sites
- Wireless Modbus extension
- Factory retrofit
- Remote meter reading
- Machine data collection
- Distributed panels
- Difficult cable routes
- RS485 wireless bridge
- SCADA access
- PLC communication
- Sensor data collection
- Energy monitoring
- IoTWatt 4.0 projects
Why RS2ZBEE for Difficult-Wiring Sites?
Reduces Cabling Work
Useful when running long RS485 or Ethernet cables is difficult, expensive or disruptive.
Retrofit Friendly
Works with existing PLCs, meters, relays, controllers and serial devices.
Wireless Modbus Bridge
Allows LAN / WLAN systems to access remote serial devices through Zigbee.
Modern System Integration
Supports Modbus RTU-to-Modbus TCP conversion for SCADA, PLC, EMS and BMS systems.
Flexible Coverage
Supports mesh and repeater modes for wider wireless coverage in factory environments.
Industrial Hardware Design
Wide temperature range and communication protection suit harsh panel environments.
Integration with IoTWatt 4.0
RS2ZBEE can be used in IoTWatt 4.0 projects where serial meters or devices are installed in locations where RS485 cabling is difficult. It can bridge data from distributed devices to a central gateway, PLC, SCADA or IoTWatt data collection point.
- Remote Modbus RTU meters
- Wireless RS485 bridge
- Distributed energy metering
- Meter data collection
- Equipment monitoring
- SCADA / BMS bridge
- Digital energy audit data
- IoTWatt dashboards
- Alerts and reports
- EECA reporting support
Recommended Deployment Checklist
- Confirm RS232 / RS485 / RS422
- Confirm baud rate
- Confirm data bits and parity
- Confirm stop bits
- Confirm flow control
- Confirm Modbus register map
- Confirm slave IDs
- Confirm topology: point-to-point / tree / mesh
- Check wireless distance
- Check antenna position
- Check obstruction and interference
- Confirm number of Zigbee nodes
- Confirm power supply rating
- Perform site communication test
RS2ZBEE Supply, Configuration and IoTWatt 4.0 Integration
Saturn Pyro supports 3Wire RS2ZBEE gateways for wireless serial communication, Modbus RTU-to-TCP conversion, remote meter reading, PLC and sensor connectivity, difficult-wiring industrial applications and IoTWatt 4.0 monitoring projects in Malaysia.
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Malaysia
