- **Dual Serial Interfaces:** Two RS422/RS485 ports with 5-contact terminal blocks, supporting both 4-wire RS422 and 2-wire RS485 configurations. - **Ethernet Connectivity:** One 10/100BASE-TX RJ45 port compliant with IEEE 802.3/802.3u standards, supporting auto-negotiation and auto-MDI/MDI-X. - **Protocol Conversion:** Acts as a transparent bridge between Modbus TCP/IP and Modbus RTU/ASCII protocols, supporting RTU Master/Slave and ASCII Master/Slave modes. - **Flexible Operation Modes:** - Master mode supports up to 32 slave TCP connection requests. - Slave mode supports up to 16 TCP master connections. - **High Data Rate:** Configurable baud rate from 300 bps to 115,200 bps with non-blocking communication. - **Industrial-Grade Design:** IP40-rated metal housing, wall-mountable, with 1 kV surge protection on serial lines. - **Wide Power Input Range:** 9–48 VDC via 2-contact terminal block, with low power consumption (~1.25 W @ 9 VDC). - **Comprehensive Management:** - Web-based GUI and Telnet management interfaces. - PLANET Modbus Gateway Utility and Smart Discovery Utility for device discovery, configuration, and firmware management. - **Security and Access Control:** IP/MAC filtering, user authentication, and configurable access permissions. - **Environmental Resilience:** Operates reliably in extreme industrial conditions (-40°C to +75°C, 5–95% RH non-condensing). - **Compliance:** Meets FCC Part 15 Class B, CE, and IEC60068-2-32/27/6 standards for free fall, shock, and vibration.

Manufacturer: Planet

Category: Modbus Gateways

- **Multi-Protocol Gateway:** Converts Modbus TCP to Modbus RTU or ASCII, supporting both TCP Master-to-Serial Slave and TCP Slave-to-Serial Master configurations. - **Flexible Operation Modes:** Operates in Direct IP Mode, Virtual COM Mode, and Paired Mode for diverse network topologies. - **High Reliability:** Built-in watchdog timer automatically resets the system in case of software or power failure. - **Industrial Protection:** Surge, overcurrent, and overvoltage protection on RS-422/485 lines; ±15 kV ESD protection on serial interfaces. - **Wide Power Input Range:** Accepts DC +10V to +30V via screw terminal or DC jack. - **Auto-MDIX Ethernet Port:** Supports 10/100 Mbps auto-detecting Ethernet with automatic crossover correction. - **High-Speed Serial Communication:** Baud rates from 1200 to 921,600 bps with hardware-based RS-485 direction control. - **Multi-Client Connectivity:** Supports up to 16 simultaneous TCP client connections in server mode. - **Heart Beat Function:** Periodic connection check ensures communication reliability and automatic reconnection after network or power interruptions. - **Easy Configuration:** Configurable via DSM utility, web interface, or serial console; firmware upgradable via LAN. - **Compatibility:** Works with Modscan32, Modbus Poll, CAS Modbus Scanner, SCADA systems, and Trycom’s TRPCOM utility. - **External Reset Switch:** Allows quick restoration to factory defaults in case of configuration or password loss. - **Dual Power Input Options:** Selectable between screw terminal and DC jack (5.5 × 2.1 mm plug).

Manufacturer: Trycom

Category: Modbus Gateways

- **Modbus Protocol Conversion:** Converts between Modbus TCP and Modbus RTU/ASCII seamlessly. - **Remote Monitoring Function:** Supports automatic and manual monitoring modes for serial devices. - *Automatic Mode:* Monitors a pulse signal from the serial device every 30 seconds; if no pulse is detected, the relay activates automatically. - *Manual Mode:* Relay can be triggered manually via the web interface to restart or control the connected device. - **Relay Control:** Two independent relays (NC, COM, NO) with adjustable latch time (1–255 units, 100 ms per unit). - **Web-Based Configuration:** Full configuration and monitoring through an integrated HTTP web server. - **Virtual COM Port Support:** Provides virtual COM drivers for Windows 98 through Windows 10, supporting Server, Client, and UDP modes. - **Network Security:** Allows configuration of up to 8 authorized host IP addresses to restrict access. - **High Connectivity:** Supports up to 16 simultaneous TCP client connections in server mode. - **Auto-MDIX Ethernet Port:** Automatically detects and corrects cable crossover, supporting both straight-through and crossover cables. - **Watchdog and Power Detection:** Built-in watchdog timer and power input detection circuit ensure system stability and automatic recovery from faults. - **Surge and ESD Protection:** ±15 kV ESD protection on serial interfaces; surge, overcurrent, and overvoltage protection on RS-422/485 lines. - **Heartbeat Function:** Periodic TCP heartbeat (port 5300) every 5 seconds to verify network connectivity. - **Firmware Upgradeable:** Supports firmware updates via LAN. - **Dual Power Input:** Selectable between screw terminal and DC jack input. - **LED Indicators:** Power, Link, UART RX/TX, Digital Input (DI), and Relay Output (DO) status LEDs. - **Auto Reconnection:** Automatically reconnects after power or Ethernet failure. - **Factory Reset:** External DIP switch allows quick restoration to factory defaults.

Manufacturer: Trycom

Category: Modbus Gateways