1. Product Overview
Name: Ethernet 4×Pt100/Pt1000 24-bit 4×Relay 2×LAN Module
Model: EMA-8314R
Series: EMA Industrial Ethernet Measurement and Control Series
Article Number: EMA-8314R
Manufacturer: JS Automation

The JS Automation EMA-8314R is a high-precision, Ethernet-based measurement and control module designed for industrial automation, process monitoring, and remote data acquisition applications. It integrates four RTD (Resistance Temperature Detector) input channels compatible with Pt100 and Pt1000 sensors, four relay outputs for control or switching tasks, and dual Ethernet LAN interfaces for flexible network connectivity. The module features a 24-bit resolution analog-to-digital conversion system, ensuring exceptional accuracy and stability in temperature measurement. Housed in a robust metal enclosure and designed for DIN rail mounting, the EMA-8314R provides a compact, durable, and reliable solution for distributed temperature monitoring and control systems in industrial environments.

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2. Key Features
- Multi-Channel RTD Input: Supports 4 independent input channels for Pt100 and Pt1000 sensors, enabling simultaneous multi-point temperature measurement.
- High-Resolution Measurement: 24-bit ADC resolution ensures precise and stable readings, suitable for high-accuracy industrial temperature monitoring.
- Flexible Sensor Wiring: Compatible with 2-wire, 3-wire, and 4-wire RTD connection configurations, allowing adaptation to various installation and accuracy requirements.
- Dual Ethernet Ports: Equipped with 2×10/100Base-TX LAN interfaces for network redundancy, daisy-chaining, or segmented network configurations.
- Integrated Relay Outputs: Includes 4 relay channels for control, alarm signaling, or process actuation, enabling direct interaction with external devices.
- Wide Operating Temperature Range: Designed for operation from 0°C to +70°C, ensuring reliable performance in industrial and process environments.
- Industrial-Grade Construction: Metal housing provides electromagnetic shielding and mechanical durability, suitable for harsh industrial conditions.
- DIN Rail Mounting: Standard DIN rail mounting design simplifies installation in control cabinets and industrial panels.
- Flexible Power Supply: Operates from a 12–24 VDC input, compatible with common industrial power systems.
- Compact Form Factor: Space-efficient design with dimensions of 107.6 × 135.8 × 34 mm, allowing dense installation in control enclosures.
- Network-Based Data Acquisition: Ethernet connectivity enables remote monitoring, configuration, and integration with SCADA, PLC, or IoT systems.

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3. Technical Specifications
- Model: EMA-8314R
- Manufacturer: JS Automation
- Input Channels: 4 channels for RTD sensors (Pt100 / Pt1000)
- Input Type: Resistance Temperature Detector (RTD)
- Supported Sensor Types: Pt100, Pt1000
- Connection Modes: 2-wire, 3-wire, 4-wire
- Analog-to-Digital Conversion: 24-bit resolution
- Relay Outputs: 4 independent relay channels
- Ethernet Interfaces: 2 × 10/100Base-TX (RJ45 connectors)
- Power Supply: 12–24 VDC input
- Power Consumption: (not specified, typically low-power industrial range)
- Operating Temperature: 0°C to +70°C
- Storage Temperature: -20°C to +80°C
- Mounting Type: DIN rail mount
- Enclosure Material: Metal case (industrial-grade)
- Dimensions (W × H × D): 107.6 × 135.8 × 34 mm
- Weight: (not specified, estimated < 500 g based on size and material)
- Protection: Metal enclosure provides EMI shielding and mechanical protection
- Network Protocols: Ethernet-based communication (specific protocol stack not specified; typically supports TCP/IP, Modbus TCP, or proprietary JS Automation protocol)

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4. Functionality
The EMA-8314R functions as a network-enabled temperature measurement and control module. It collects temperature data from up to four RTD sensors (Pt100 or Pt1000) and converts the analog resistance signals into high-resolution digital values using a 24-bit ADC. The module’s dual Ethernet ports allow it to be integrated into industrial networks, enabling remote monitoring, data logging, and control through SCADA systems, PLCs, or industrial PCs.

Each of the four relay outputs can be configured to respond to temperature thresholds, alarms, or external control commands. This allows the module to perform automated control tasks such as switching heaters, fans, or alarms based on measured temperature conditions.

Typical Use Cases and Applications:
- Industrial process temperature monitoring and control
- HVAC system temperature regulation
- Environmental monitoring in manufacturing or storage facilities
- Laboratory and research instrumentation
- Energy management systems
- Remote data acquisition in distributed control networks
- Integration with PLCs and SCADA systems for process automation

Compatibility:
The EMA-8314R is compatible with standard Pt100 and Pt1000 RTD sensors and can interface with most industrial Ethernet networks. It can be integrated into systems using standard communication protocols (depending on firmware support) and is suitable for use with JS Automation’s ecosystem of Ethernet I/O modules and controllers.

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5. Components & Accessories
Included Components:
- EMA-8314R main module (metal enclosure)
- DIN rail mounting clip or bracket (integrated or included)
- Quick-start or installation guide (manufacturer documentation)

Optional Accessories (depending on configuration):
- RTD sensors (Pt100 or Pt1000 probes, not included)
- Ethernet cables (Cat5e/Cat6, RJ45 connectors)
- Power supply unit (12–24 VDC regulated source)
- Relay output wiring harnesses or terminal connectors
- Configuration software or network management utility (provided by JS Automation)

Connectors and Interfaces:
- Ethernet Ports: 2 × RJ45 connectors for 10/100Base-TX LAN
- RTD Inputs: 4 × terminal blocks for 2/3/4-wire RTD connections
- Relay Outputs: 4 × terminal blocks for relay contacts
- Power Input: Terminal block for 12–24 VDC supply

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6. Installation & Setup
Installation Requirements:
- Standard 35 mm DIN rail for mounting
- 12–24 VDC regulated power supply
- Proper grounding and shielding for industrial environments
- Ethernet network connection (LAN infrastructure)

Mounting Options:
The EMA-8314R is designed for DIN rail mounting, allowing quick installation in control cabinets or electrical panels. The metal housing ensures secure attachment and effective heat dissipation.

Configuration:
Initial setup typically involves:
1. Connecting the power supply (12–24 VDC).
2. Wiring the RTD sensors to the input terminals (2-, 3-, or 4-wire configuration).
3. Connecting relay outputs to the controlled devices or circuits.
4. Establishing Ethernet connections via the two RJ45 ports.
5. Configuring network parameters (IP address, subnet, gateway) using JS Automation’s configuration software or web interface (if available).
6. Calibrating or verifying sensor inputs as required.

Environmental Considerations:
Ensure installation within the specified operating temperature range (0°C to +70°C) and avoid exposure to excessive humidity, vibration, or corrosive environments. The metal enclosure provides mechanical protection and EMI shielding, but additional enclosure protection may be required for outdoor or high-dust environments.

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7. Performance & Capabilities
Measurement Performance:
- Resolution: 24-bit ADC provides extremely fine measurement granularity, enabling detection of small temperature variations.
- Accuracy: Dependent on sensor type and wiring configuration; 4-wire connections minimize lead resistance errors for highest accuracy.
- Sampling Rate: Not specified, but typically optimized for stable industrial measurement rather than high-speed acquisition.

Relay Performance:
- Number of Relays: 4
- Function: Switching, control, or alarm signaling
- Load Capacity: Not specified (typically rated for low-voltage control circuits; consult manufacturer datasheet for exact ratings).

Network Performance:
- Ethernet Speed: 10/100 Mbps auto-negotiation
- Dual LAN Ports: Support for network redundancy, daisy-chain topology, or separate control and monitoring networks.

Power Efficiency:
- Operates efficiently from 12–24 VDC with low power consumption, suitable for continuous operation in industrial systems.

Limitations:
- Designed primarily for temperature measurement; not intended for high-speed analog signal acquisition.
- Relay outputs are mechanical and may have switching frequency limitations.
- Environmental protection limited to indoor industrial use unless housed in a protective enclosure.

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8. Standards & Compliance
While specific certifications are not listed in the provided data, the EMA-8314R is designed according to common industrial automation standards and practices. Typical compliance expectations include:
- Electrical Safety: Conforms to low-voltage DC operation standards (12–24 VDC).
- EMC Compliance: Metal enclosure provides electromagnetic interference shielding; likely compliant with industrial EMC directives.
- RoHS Compliance: Expected to meet Restriction of Hazardous Substances (RoHS) requirements for electronic equipment.
- DIN Rail Compatibility: Conforms to IEC 60715 standard for 35 mm DIN rail mounting.
- Ethernet Standards: IEEE 802.3 (10/100Base-TX) compliance for network interfaces.

For precise certification details, users should refer to JS Automation’s official documentation or product datasheet.

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9. Additional Information
Warranty:
Typically covered by JS Automation’s standard industrial product warranty (duration and terms depend on region and distributor). Warranty generally covers manufacturing defects and component failures under normal operating conditions.

Support:
JS Automation provides technical support, configuration assistance, and firmware updates through its customer service channels and online resources. Documentation, wiring diagrams, and configuration utilities are available from the manufacturer’s website or authorized distributors.

Maintenance:
The EMA-8314R requires minimal maintenance. Recommended practices include:
- Periodic inspection of wiring and terminal connections.
- Ensuring clean and dry operating conditions.
- Verifying sensor calibration periodically for critical applications.
- Updating firmware when available to maintain compatibility and performance.

Firmware & Software Updates:
Firmware updates may be provided by JS Automation to enhance functionality, improve network compatibility, or add new features. Updates are typically applied via Ethernet using the manufacturer’s configuration software.

Service Life & Reliability:
The module’s solid-state design and metal enclosure contribute to long operational life and high reliability in continuous industrial service. The use of 24-bit ADC technology ensures stable measurement performance over time, while the dual Ethernet ports provide network resilience and flexibility.

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### Summary
The JS Automation EMA-8314R Ethernet 4×Pt100/Pt1000 24-bit 4×Relay 2×LAN Module is a versatile, high-precision industrial measurement and control device engineered for networked temperature monitoring applications. Combining four high-resolution RTD input channels, four relay outputs, and dual Ethernet connectivity, it delivers a compact, robust, and flexible solution for modern automation systems. Its 24-bit resolution ensures exceptional measurement accuracy, while the dual LAN design supports advanced network topologies and redundancy. With a durable metal enclosure, DIN rail mounting, and wide operating temperature range, the EMA-8314R is ideally suited for demanding industrial environments requiring reliable, network-integrated temperature measurement and control.