1. Product Overview

Product Name: Aport-212
Model: Aport-212
Series: Aport Industrial Communication Gateways
Article Number: Aport-212
Manufacturer: Artila Electronics Co., Ltd.

The Artila Aport-212 is a compact, industrial-grade Modbus TCP to dual Modbus RTU/ASCII gateway designed to bridge Ethernet-based Modbus TCP networks with serial Modbus RTU or ASCII devices. It provides two configurable serial ports and one Ethernet interface, enabling flexible and reliable communication between legacy serial equipment and modern Ethernet-based control systems. The device supports multiple gateway modes, including Modbus Slave RTU/ASCII, Modbus Master RTU/ASCII, and transparent Serial-to-Ethernet (S2E) operation. With robust isolation, high-speed data handling, and versatile configuration options, the Aport-212 is optimized for industrial automation, process control, and remote monitoring applications.

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2. Key Features

- Dual Modbus Gateway Functionality: Converts Modbus TCP to two independent Modbus RTU/ASCII channels, allowing simultaneous communication with multiple serial devices.
- Flexible Serial Configuration: Each serial port can be independently configured as RS-232, RS-422, or RS-485, supporting both Modbus Master and Slave modes.
- High Connectivity Capacity: Each serial port supports up to 16 Modbus TCP Masters and 32 Modbus TCP Slaves, enabling complex network topologies.
- Transparent Serial-to-Ethernet Conversion (S2E): Provides a direct data tunnel between serial and Ethernet interfaces without protocol conversion, supporting both TCP Server and TCP Client modes.
- High-Speed Serial Communication: Supports baud rates from 1,200 to 921,600 bps, with configurable data bits (5–8), stop bits (1–2), and flow control (None, Hardware, Xon/Xoff).
- Industrial-Grade Protection: Features 15 kV ESD protection on serial ports and 1,500 V magnetic isolation on the Ethernet interface for enhanced reliability in harsh environments.
- Comprehensive Configuration Interfaces: Supports configuration via Web console, Telnet, Serial console, and Windows configuration utility (Manager Utility).
- Compact and Rugged Design: DIN-rail mountable metal enclosure with wide 9–40 VDC power input range and 0–70°C operating temperature.
- LED Indicators: Power, Ready, Link/Activity, and dual-color RX/TX LEDs provide real-time operational status.
- Firmware Upgrade and Remote Management: Supports remote firmware updates, reboot, and factory reset via software utilities or command-line interface.

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3. Technical Specifications

Processor: 32-bit microcontroller
Serial Ports:
- Port 1: RS-232/422/485 (DB9 male connector)
- Port 2: RS-232/485 (DB9 male connector)
- Baud Rate: 1,200 to 921,600 bps
- Data Bits: 5, 6, 7, or 8
- Stop Bits: 1 or 2
- Flow Control: None, Hardware, or Xon/Xoff
- Isolation: 15 kV ESD protection

Ethernet Interface:
- Port: 1 × 10/100 Mbps Ethernet (RJ45)
- Isolation: 1,500 V magnetic isolation

Serial Console Port:
- Type: RS-232
- Baud Rate: 115,200 bps
- Data Format: 8 data bits, 1 stop bit, no parity, no flow control

Power Supply:
- Input Voltage: 9–40 VDC
- Connectors: Power jack and terminal block

Physical Characteristics:
- Dimensions: 108 × 78 × 25 mm (H × W × D)
- Weight: Approx. 200 g (typical)
- Mounting: DIN-rail or panel mount (optional kit DK-35A)

Environmental Conditions:
- Operating Temperature: 0–70°C
- Storage Temperature: -20–85°C
- Humidity: 5–95% RH (non-condensing)

Default Network Settings:
- IP Address: 192.168.2.127
- Netmask: 255.255.255.0
- Web Console Port: 5003
- Telnet Console Port: 5001

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4. Functionality

The Aport-212 functions as a protocol gateway and serial-to-Ethernet converter, enabling seamless communication between Modbus TCP and Modbus RTU/ASCII networks. It supports four Modbus gateway modes and two S2E modes:

- Modbus Gateway Modes:
- Slave RTU / Slave ASCII: Ethernet-based Modbus TCP Masters communicate with serial Modbus Slaves. Up to 16 TCP Masters can access each serial port concurrently.
- Master RTU / Master ASCII: Serial Modbus Masters communicate with up to 32 Modbus TCP Slaves over Ethernet. The gateway maps Unit IDs (UIDs) to IP addresses and ports for routing.

- Serial-to-Ethernet (S2E) Modes:
- TCP Server Mode: The Aport-212 listens for incoming TCP connections from clients.
- TCP Client Mode: The device initiates a connection to a remote TCP server.

Use Cases and Applications:
- Integration of legacy Modbus RTU/ASCII devices (e.g., meters, sensors, PLCs) into Ethernet-based SCADA or HMI systems.
- Remote monitoring and control of serial devices over IP networks.
- Industrial automation, building management, and energy monitoring systems.
- Transparent serial data tunneling between remote devices.

Compatibility:
Compatible with standard Modbus TCP/RTU/ASCII protocols and interoperable with most industrial controllers, PLCs, HMIs, and SCADA systems.

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5. Components & Accessories

Included in Package:
1. Aport-212 Modbus Gateway
2. Artila CD (includes Manager Utility software, documentation, and drivers)

Optional Accessories:
1. CB-RJ2CON-100: Serial console cable
2. DK-35A: DIN-rail mounting kit
3. PWR-12V-1A: 110–240 VAC to 12 VDC, 1 A power adapter

Connectors and Interfaces:
- Power Connector: Terminal block and DC power jack (9–40 VDC input)
- Ethernet Port: RJ45 connector
- Serial Ports: Two DB9 male connectors (RS-232/422/485)
- Serial Console Port: RS-232 interface for configuration and debugging

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6. Installation & Setup

Power Connection:
Connect a 9–40 VDC power source to the terminal block or DC jack. The Power LED illuminates solid yellow when power is correctly applied.

Mounting Options:
DIN-rail mounting is supported using the optional DK-35A kit. The compact form factor allows installation in control cabinets or industrial panels.

Network Configuration:
- Default IP: 192.168.2.127
- Configuration via Web browser, Telnet, Serial console, or Windows Manager Utility.
- Supports broadcast search and device discovery through the Manager Utility software.

Serial Port Configuration:
Each serial port can be independently configured for RS-232, RS-422, or RS-485 operation. Pin assignments are as follows:

| Pin | RS-232 | RS-422 | RS-485 |
|-----|---------|---------|---------|
| 1 | DCD* | TXD– | — |
| 2 | RXD | TXD+ | — |
| 3 | TXD | RXD+ | DATA+ |
| 4 | DTR* | RXD– | DATA– |
| 5 | GND | GND | GND |
| 6 | DSR* | — | — |
| 7 | RTS | — | — |
| 8 | CTS | — | — |
| 9 | — | — | — |

(* indicates optional signals depending on mode)

LED Indicators:
- Power LED: ON when power is applied.
- Ready LED: ON when firmware is operational.
- Link/Act LED: ON when Ethernet link is active; flashes with network traffic.
- RX/TX LED: Dual-color indicator (Yellow = RX, Green = TX).

Software Setup:
- Install Manager Utility from the included CD.
- Use the broadcast search function to detect Aport-212 devices on the network.
- Configure UART operation mode, Modbus mapping, and TCP parameters.
- Save and reboot the device to apply settings.

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7. Performance & Capabilities

- Serial Data Rate: Up to 921.6 kbps per port.
- Ethernet Throughput: 10/100 Mbps auto-negotiation.
- Concurrent Connections:
- Up to 16 Modbus TCP Masters per serial port (Slave mode).
- Up to 32 Modbus TCP Slaves per serial port (Master mode).
- Buffering: Supports up to 64 concurrent Modbus TCP requests.
- Response Timeout: Configurable to discard unresponsive Modbus requests.
- TCP Exception Handling:
- Code 0x0A: Unknown UID or TCP request overflow.
- Code 0x0B: Serial slave timeout.
- Data Packing Options (S2E mode):
- Force Length: Fixed-length data packets.
- Interval Timeout: Time-based packet forwarding.
- Delimiter Character: Character-based packet termination (e.g., CR/LF = 0D0A).
- Reliability Features:
- Alive check timeout for UART1 and UART2.
- Idle timeout for TCP sessions.
- Accessible IP filtering for security.
- Firmware Management: Remote upgrade, reboot, and factory reset supported.

Limitations:
- Designed for Modbus and transparent serial data; does not support proprietary or non-Modbus protocol translation.
- Operating temperature limited to 70°C; not suitable for extreme environments without enclosure protection.

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8. Standards & Compliance

- Communication Protocols: Modbus TCP, Modbus RTU, Modbus ASCII, TCP/IP, Telnet, HTTP.
- Electrical Protection:
- 15 kV ESD protection on serial ports.
- 1,500 V magnetic isolation on Ethernet port.
- Power Supply Compliance: 9–40 VDC industrial standard input range.
- Mounting Standard: DIN-rail compatible (per IEC 60715).
- Environmental Compliance: RoHS-compliant materials and construction.
- Safety and EMC: Designed for industrial environments with ESD and surge protection.

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9. Additional Information

Warranty:
Standard manufacturer warranty (typically 1 year, depending on region and distributor). Covers defects in materials and workmanship under normal use.

Technical Support:
Artila provides technical documentation, firmware updates, and configuration utilities via its official website. Support includes email assistance and downloadable manuals.

Maintenance:
- Periodic inspection of power and communication connections recommended.
- Firmware updates can be applied via Web console or Manager Utility.
- Device reboot and factory reset available through software commands.

Firmware & Software Updates:
- Firmware upgrade via Manager Utility or Web interface.
- Command-line interface (CLI) supports configuration and scripting via Telnet or serial console.
- Command syntax: `[G/S]:Command=Parameter{CR}` (e.g., `G:ip_ip=` to get IP, `S;ip_ip=192.168.2.127` to set IP).
- Save and reboot command: `S;save=1 & reboot=1`.

Security Features:
- Password-protected Web and Telnet access.
- Accessible IP filtering to restrict remote connections.
- Configurable idle and alive timeouts to prevent unauthorized session persistence.

Software Utilities:
- Manager Utility: Windows-based configuration and management tool.
- Web Console: Browser-based configuration interface (default: http://192.168.2.127:5003).
- Telnet Console: Command-line configuration (port 5001).
- Serial Console: Local configuration via RS-232 port.

Summary of Operational Modes:
| Mode | Description | Typical Use |
|------|--------------|-------------|
| Modbus Slave RTU/ASCII | Ethernet Masters to Serial Slaves | HMI to Modbus meters |
| Modbus Master RTU/ASCII | Serial Masters to Ethernet Slaves | PLC to Modbus TCP devices |
| S2E TCP Server | Waits for TCP client connection | Remote serial monitoring |
| S2E TCP Client | Initiates TCP connection | Serial device to remote server |

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Conclusion

The Artila Aport-212 Modbus TCP to 2× Modbus RTU/ASCII Gateway is a robust, high-performance communication bridge engineered for industrial automation and control systems. Its dual configurable serial ports, flexible gateway modes, and comprehensive configuration interfaces make it an ideal solution for integrating legacy serial devices into modern Ethernet networks. With industrial-grade protection, wide power input range, and versatile software tools, the Aport-212 ensures reliable, secure, and efficient data communication across diverse industrial environments.