Comprehensive Product Summary – EMC‑8432 Ethernet to RS232 Converter Module

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### 1. Product Overview

Product Name: Ethernet to RS232 Converter with 8 DIO‑TTL and Dual LAN Ports
Model: EMC‑8432
Series: EMC84xx Series (includes EMC‑8432 and EMC‑8485 variants)
Article Number: EMC‑8432
Manufacturer: JS Automation Corp. (健昇科技股份有限公司)
Manufacturer Address: 6F., No.100, Zhongxing Rd., Xizhi Dist., New Taipei City, Taiwan
Contact:
- Tel: +886‑2‑2647‑6936
- Fax: +886‑2‑2647‑6940
- Website: [www.automation.com.tw](http://www.automation.com.tw) / [www.automation‑js.com](http://www.automation-js.com)
- Email: control.cards@automation.com.tw

The EMC‑8432 is an industrial‑grade Ethernet‑to‑serial converter module designed to bridge RS232 serial communication with Ethernet networks. It integrates 8 configurable digital I/O channels (TTL level) and dual 10/100Base‑T Ethernet ports, providing a compact, reliable, and flexible solution for industrial automation, remote monitoring, and control applications.

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### 2. Key Features

- Dual Ethernet Ports: Two 10/100 Mbps auto‑switching RJ45 interfaces for flexible network topology (daisy‑chain or redundant connection).
- RS232 Serial Interface: Full‑featured RS232 port supporting baud rates from 1200 to 921.6 kbps.
- 8 Configurable Digital I/O Channels: Each bit can be independently configured as input or output; supports TTL logic levels.
- Over‑Voltage and Over‑Current Protection: Digital inputs protected up to 60 V DC; outputs rated up to 45 V DC, 500 mA peak.
- Software Counter Function: Inputs can serve as low‑frequency counters up to 200 Hz.
- Standalone Operation Mode: Built‑in sequence control allows autonomous operation without Ethernet connection.
- Wide Power Supply Range: Operates from 12 V DC to 24 V DC.
- High Reliability: Industrial‑grade design with metal enclosure and DIN‑rail mounting.
- Flexible Configuration: IP reassignment, software key protection, and remote firmware management.
- Cross‑Platform Software Support: Windows and Linux DLL libraries for integration with C/C++, Visual Basic, and other environments.
- Virtual COM Port Functionality: Emulates a standard COM port over Ethernet for legacy software compatibility.
- Compact Form Factor: 107.6 × 135.8 × 34 mm metal housing.
- Operating Temperature Range: 0 °C to +70 °C; storage −20 °C to +80 °C.

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### 3. Technical Specifications

RS232 Interface
- Baud Rates: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 921600 bps
- Data Bits: 5, 6, 7, 8
- Stop Bits: 1, 1.5
- Parity: None, Even, Odd
- Connector: 9‑pin D‑sub male (JM1)
- Signals: DCD, RXD, TXD, DTR, GND, DSR, RTS, CTS, RI

Digital I/O (TTL Level)
- Channels: 8 configurable (IO_0 – IO_7)
- Logic High: ≥ 3.15 V
- Logic Low: ≤ 1.35 V
- Input Over‑Voltage Protection: 60 V DC max
- Input Over‑Current Protection: 50 mA max
- Output Type: Transistor (open collector)
- Output Capacity: 500 mA peak, 45 V DC max
- Configurable as input or output per bit

Ethernet Interface
- Ports: 2 × 10/100 Mbps auto‑negotiating RJ45 (J2, J3)
- Protocols: TCP/IP, UDP, socket‑based communication
- Default IP: 192.168.0.100
- Default Ports: Host = 25122, Remote = 6936

General Specifications
- Power Supply: 12 – 24 V DC (external connector JM4)
- Power Consumption: < 5 W typical
- Operating Temperature: 0 °C – +70 °C
- Storage Temperature: −20 °C – +80 °C
- Humidity: 5 – 95 % RH (non‑condensing)
- Dimensions: 107.6 (D) × 135.8 (W) × 34 (H) mm (4.3 × 5.4 × 1.4 in)
- Enclosure: Metal case, DIN‑rail mountable
- Indicators: LED1 (System Active)
- Reset: SW2 (System Reset Switch)

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### 4. Functionality

The EMC‑8432 functions as a bidirectional Ethernet‑to‑RS232 converter with integrated digital I/O control. It enables legacy serial devices to communicate over Ethernet networks without hardware modification.

Operation Modes:
1. Ethernet‑to‑Serial Conversion: Converts TCP/IP data to RS232 and vice versa.
2. Digital I/O Control: Each of the 8 I/O lines can be configured as input or output for monitoring or control.
3. Counter Mode: Inputs can count pulses up to 200 Hz for event counting or frequency measurement.
4. Standalone Mode: Executes pre‑programmed logic sequences autonomously, using internal timers and I/O triggers.
5. Virtual COM Port Mode: Appears as a standard COM port to host software, simplifying integration with existing serial applications.

Typical Applications:
- Industrial automation and process control
- Remote monitoring and data acquisition (SCADA)
- Machine‑to‑machine (M2M) communication
- Legacy RS232 device networking
- Remote I/O expansion for PLCs or embedded controllers
- Standalone sequence control for small automation tasks

Compatibility:
- Operating Systems: Windows 2000 and later, Linux
- Programming Interfaces: C/C++, Visual C++, Borland C++, Visual Basic
- Supported Libraries: EMC84xx.dll (Windows DLL), API headers, and demo programs

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### 5. Components & Accessories

Included Components:
- EMC‑8432 main module
- M23406 9‑pin D‑type male cable (10 cm)

Optional Accessories:
- JD52000: 110/220 V AC to 24 V DC @ 1.5 A power supply
- JD52026: 110/220 V AC to 24 V DC @ 0.75 A power adapter

Connectors:
- JM1: RS232 D‑sub 9‑pin male
- JM2: 10‑pin I/O terminal block (+Ve, IO_0 – IO_7, GND)
- +Ve input range: +3.3 V – +24 V (floating or external voltage)
- JM4: Power input terminal (12–24 V DC)
- J2, J3: Dual RJ45 Ethernet ports

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### 6. Installation & Setup

Mounting:
- DIN‑rail mountable metal enclosure for industrial panels.

Power Requirements:
- 12–24 V DC regulated supply connected via JM4 terminal.

Network Configuration:
- Default IP: 192.168.0.100 (modifiable via software or API).
- Configuration via provided Windows utility or API functions:
- `EMC84xx_IP_change()` to set IP address.
- `EMC84xx_socket_port_change()` to modify communication ports.
- `EMC84xx_reboot()` to apply changes.

Software Installation:
- Install driver and API using `EMC84xx_Install.exe`.
- Default installation path: `..\JS Automation\EMC84xx\`
- `/API` – Header and library files
- `/Driver` – Device driver
- `/exe` – Demo programs and source code

Programming Setup:
- Include `EMC84xx.h` and link appropriate library (`EMC84xxVC.lib`, `EMC84xxBC.lib`, or `EMC84xx.bas`).
- Initialize device using `EMC84xx_initial()` with IP and port parameters.
- Close connection with `EMC84xx_close()` when finished.

Standalone Configuration:
- Up to 32 programmable commands combining input conditions, timers, and output actions.
- Configurable via GUI utility or API (`EMC84xx_standalone_config_set()` / `_read()`).
- Timer base: 5 ms per tick; supports delay, pulse, and periodic modes.

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### 7. Performance & Capabilities

Serial Communication:
- Maximum baud rate: 921.6 kbps
- Reliable data transmission over Ethernet using socket communication.
- Supports parity, stop bit, and flow control configuration.

Digital I/O Performance:
- Input frequency response: ≤ 200 Hz (debounce filtering).
- Output drive: up to 500 mA peak per channel.
- Configurable polarity and direction per bit.

Counter Function:
- 8 independent counters (IO_0 – IO_7).
- Frequency limit: 200 Hz.
- Functions: enable, disable, read, clear, and mask via API.

Standalone Mode:
- Executes up to 32 sequential logic commands.
- Timer resolution: 5 ms; supports delay, pulse, and cyclic operations.
- Power‑on auto‑run option.

Virtual COM Port:
- Emulates serial COM port over Ethernet.
- Functions: install, remove, set IP, connect, info, and close.
- Enables transparent communication for legacy serial applications.

Limitations:
- Input frequency limited to 200 Hz (above treated as noise).
- Timer resolution limited to multiples of 5 ms.
- RS232 only (for RS422/485 use EMC‑8485).

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### 8. Standards & Compliance

Electrical and Environmental:
- Designed for industrial environments (0 – 70 °C operation).
- Over‑voltage and over‑current protection on I/O lines.
- Non‑condensing humidity tolerance up to 95 %.

Software and Communication Standards:
- Complies with standard TCP/IP and UDP socket protocols.
- Compatible with Windows DLL and Linux socket libraries.
- Supports standard RS232 signaling per EIA/TIA‑232‑F.

Regulatory Compliance:
- CE and RoHS compliance (typical for JS Automation industrial modules).
- Meets industrial EMC and safety standards for control equipment.

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### 9. Additional Information

Warranty & Support:
- Standard manufacturer warranty (contact JS Automation for terms).
- Technical support via email and website resources.
- Firmware and software updates available through user registration.

Maintenance:
- Periodic inspection of connectors and power supply recommended.
- Firmware upgradeable via Ethernet interface.
- Reset switch (SW2) for system recovery.

Software Tools & API Summary:
- Initialization & Control: `EMC84xx_initial()`, `EMC84xx_close()`, `EMC84xx_reboot()`
- Configuration: `EMC84xx_IP_change()`, `EMC84xx_socket_port_change()`
- Security: `EMC84xx_security_unlock()`, `EMC84xx_password_change()`, `EMC84xx_password_set_default()`
- Digital I/O: `EMC84xx_port_config_set()`, `EMC84xx_port_read()`, `EMC84xx_point_set()`
- Counter: `EMC84xx_counter_enable()`, `EMC84xx_counter_read()`, `EMC84xx_counter_clear()`
- Standalone Mode: `EMC84xx_standalone_enable()`, `EMC84xx_standalone_config_set()`
- Virtual COM: `EMC84xx_VSPM_install()`, `EMC84xx_VSPM_connect()`, `EMC84xx_VSPM_close()`

Error Handling:
Comprehensive error codes (0–342) indicate communication, configuration, or hardware issues, such as:
- `INITIAL_SOCKET_ERROR` – Ethernet initialization failure
- `IP_ADDRESS_ERROR` – Invalid IP configuration
- `PORT_ERROR` – Invalid port parameter
- `COUNTER_READ_ERROR` – Counter data read failure
- `STANDALONE_ENABLE_ERROR` – Standalone mode activation failure

Related Models:
- EMC‑8485: Ethernet to RS422/485 converter with 8‑bit I/O (same software interface).

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### Summary

The JS Automation EMC‑8432 is a robust, feature‑rich Ethernet‑to‑RS232 converter module engineered for industrial automation and remote I/O control. It combines high‑speed serial communication, dual Ethernet connectivity, and flexible digital I/O in a compact DIN‑rail‑mountable metal enclosure. With comprehensive software support, standalone logic capability, and virtual COM port emulation, the EMC‑8432 provides a seamless bridge between traditional serial devices and modern Ethernet networks.

Its wide operating voltage range, configurable I/O protection, and extensive API library make it ideal for system integrators, OEMs, and automation engineers seeking reliable, programmable, and network‑ready serial communication solutions.