Description

STAHL ET-436-AT-R2-HB-TX-100GB-V

1. Basic Information

STAHL ET-436-AT-R2-HB-TX-100GB-V is an industrial intrinsically safe Ethernet terminal module, specially designed for Ethernet communication in hazardous industrial areas. It serves as a core component to realize high-speed and secure data transmission between control rooms in safe areas and field instruments in hazardous areas. Integrating intrinsically safe technology, high-reliability Ethernet communication technology and network security protection technology, it features intrinsic safety, high-speed transmission, redundant backup and excellent harsh environment resistance. Its core function is to extend standard Ethernet networks into hazardous areas and provide stable and secure 100Base-TX Ethernet connections. Meanwhile, it ensures data confidentiality and integrity and defends against network attacks, fully meeting communication demands of oil & gas, chemical, petrochemical and other hazardous industries with balanced safety, reliability and practicality.

Adopting robust industrial structure and supporting DIN 35 rail mounting, it is classified as industrial communication component for hazardous zones. It can be directly integrated into various industrial communication networks, DCS, SCADA and PLC control systems to build communication links between safe and hazardous areas. With outstanding environmental adaptability, anti-interference and anti-corrosion performance, it reaches IP66/IP67 protection grade and can withstand extreme temperature, humidity, chemical erosion and other severe working conditions. It is compatible with mainstream industrial protocols such as Profinet and Modbus, and seamlessly connects with control systems from major automation manufacturers. Widely applied in oil & gas, chemical, petrochemical, water treatment, pumping system and material handling industries, it provides reliable Ethernet communication support for real-time monitoring, fault diagnosis and remote parameter configuration in hazardous locations.

With intrinsic safety certification, high-speed Ethernet transmission and redundant network topology support, this module is applicable to various Ethernet communication scenarios in hazardous areas. It is especially ideal for petrochemical and natural gas exploitation fields with strict requirements on explosion proofing, network security and transmission stability. As an essential core terminal device for industrial communication in hazardous zones, it realizes seamless data interconnection between safe and hazardous areas. It also supports programmable module address setting to improve overall system configuration flexibility.

2. Technical Specifications

2.1 Core Electrical & Communication Specifications

Power Supply: Wide input voltage range 8-32V DC, compatible with conventional industrial power supply circuits for diverse power supply scenarios. Part versions support 24V DC operating voltage with maximum load current up to 4A and reasonable power consumption for long-term stable power supply.
Communication Parameters: Supports 100Base-TX Ethernet with transmission rate up to 100Mbps and twisted-pair ports. It adopts redundant ring network topologies including HSR (High-availability Seamless Redundancy) and MRP (Media Redundancy Protocol) to enhance network robustness and minimize downtime of key applications.
Communication Protocols: Compatible with mainstream industrial protocols such as Modbus RTU and Profinet for seamless connection with PLC, DCS and SCADA systems to achieve fast and accurate data interaction. It also supports IPsec protocol to prevent man-in-the-middle attacks and unauthorized access and strengthen communication security.
Temperature Resistance: Operating temperature range: -20°C ~ +60°C. It effectively resists temperature fluctuation in hazardous areas to avoid module damage and communication disconnection caused by abnormal temperature and guarantee stable operation in extreme environments.
Network Security: Compliant with ISASecure certification standards and equipped with advanced security functions, including secure boot to prevent unauthorized firmware uploading and built-in firewall. It can detect unauthorized modification, defend against DoS attacks and ensure confidentiality and integrity of static and dynamic data.

2.2 Physical & Structural Specifications

Mounting Method: DIN 35 rail mounting in line with industrial installation standards. It is easy to install and can be quickly assembled inside industrial control cabinets or on-site mounting brackets in hazardous areas, saving space and facilitating overall layout and later maintenance.
Dimensions: Compact industrial packaging with slight size differences among different configurations. Common sizes: 150mm×40mm×56mm, 120mm×80mm×40mm. Miniaturized design fits narrow installation space in hazardous sites without occupying extra space.
Weight: Approximately 350g with moderate weight and solid structure. It is convenient for on-site integration and deployment without increasing load of mounting brackets, balancing portability and durability.
Enclosure & Connection: Adopts industrial housing made of high-strength aluminum alloy or anti-corrosion materials with IP66/IP67 protection grade, featuring excellent waterproof, dustproof, anti-corrosion and impact resistance to resist chemical corrosion, moisture and dust in hazardous environments. Equipped with dual 100Mbps twisted-pair ports with reasonable layout for easy wiring. It supports hot swapping to simplify on-site commissioning and maintenance.
Product Features: Modular design with hot-swap function enables quick access to existing control infrastructure and reduces system upgrading and maintenance costs. Anti-corrosion housing delivers superior vibration and impact resistance to adapt to complex physical conditions in hazardous areas and extend service life. Programmable module address setting improves system configuration flexibility.

2.3 Core Function & Compatibility Specifications

Core Functions: Integrates intrinsically safe Ethernet communication, redundant network operation, network security protection and data transmission & conversion functions. It establishes high-speed Ethernet links between safe and hazardous areas and extends standard Ethernet coverage to dangerous sites. It supports real-time data monitoring, fault diagnosis and remote configuration, as well as data confidentiality & integrity protection against various network threats to ensure safe communication.
Integration Performance: Highly integrated design embeds Ethernet communication unit, intrinsic safety protection unit, network security unit and redundant control unit. No additional auxiliary devices are required, so it can be directly connected to industrial communication networks, simplifying system design, wiring work and lowering construction and maintenance costs. Programmable address setting allows flexible field configuration for stronger site adaptability.
Compatibility: Fully compatible with DCS, SCADA and PLC control systems from mainstream automation brands and supports Profinet, Modbus RTU and other common industrial protocols. It can work cooperatively with other STAHL series modules and third-party industrial communication devices to improve system integration flexibility and scalability. It matches various field instruments and sensors in hazardous areas to realize seamless data collection and transmission.
Reliability & Safety: It has excellent anti-interference, anti-corrosion and vibration-resistant performance for long-term stable operation in hazardous zones with low failure rate and reduced maintenance expenditure. Built-in intrinsic safety design and multiple safety certifications ensure safe operation in explosive atmospheres and eliminate potential safety hazards. Supported redundant network topology and IPsec encryption guarantee stable and secure communication and lower network failure risks.

3. Working Principle

Module Initialization & ConfigurationSet module address via programming and complete configuration of communication rate, redundancy mode and security parameters. After power-on, the module finishes automatic initialization and connects to industrial communication networks. The secure boot function verifies software validity to block unauthorized program uploading and ensure safe startup.
Intrinsic Safety ProtectionThe built-in intrinsic safety unit strictly manages input/output signals and power supply, limiting circuit current and voltage within safe ranges. It prevents electric sparks and high temperature which may ignite explosive mixtures, ensuring reliable operation in Zone 1, Zone 2, Zone 21 and Zone 22 hazardous areas, and protecting field instruments and communication links simultaneously.

Ethernet Communication & Redundancy ControlIt realizes 100Base-TX Ethernet communication via dual 100Mbps twisted-pair ports and supports HSR, MRP and other redundant ring network mechanisms. Once the main communication link fails, the system automatically switches to the backup link to maintain uninterrupted connection and minimize downtime. All transmitted data is encrypted by IPsec protocol to avoid unauthorized access and man-in-the-middle attacks, ensuring data confidentiality and integrity.
Data Interaction & Status MonitoringActing as a communication bridge between safe and hazardous areas, the module transmits control commands issued by upper control systems in safe areas to field instruments and sensors in hazardous zones. Meanwhile, it collects operating status data from on-site equipment, processes the data and uploads it back to remote control systems to realize real-time monitoring and remote configuration. The internal fault diagnosis unit monitors module operating status and link conditions in real time and feeds back fault alerts timely for rapid troubleshooting and maintenance.

4. Application Scenarios

4.1 Oil & Gas Industry

Applied in hazardous sites such as oil exploitation and natural gas transmission. As an intrinsically safe Ethernet terminal, it extends safe-area Ethernet networks to wellheads and oil pipelines, connecting on-site sensors, flow meters, valves and other equipment. It realizes real-time data collection, remote monitoring and centralized control to ensure safe and stable operation of oil and gas production and transportation, while defending network risks and protecting industrial data security.

4.2 Chemical & Petrochemical Industry

Deployed in hazardous areas including production workshops and tank farms of chemical and petrochemical plants. It connects field analytical instruments, temperature & pressure sensors and actuators to achieve real-time monitoring of process parameters and high-speed transmission of control signals. It adapts to high-temperature, heavy-corrosion and humid harsh working conditions. Certified intrinsic safety performance guarantees safe operation in explosive environments and provides stable communication guarantee for chemical production processes.

4.3 Water Treatment & Pumping Systems

Suitable for water treatment plants and industrial pumping systems, especially water treatment processes involving hazardous chemicals. Used as an Ethernet communication terminal to connect water pumps, control valves and monitoring meters, it supports remote system monitoring, control and data exchange. Redundant network design ensures continuous operation of water treatment and fluid conveying processes and improves overall operational efficiency and safety.

4.4 Material Handling & General Hazardous Scenarios

Applied to material handling systems in various hazardous areas to connect AGVs, sorting equipment and monitoring sensors for high-speed data interaction and unified scheduling control. It expands Ethernet network coverage to dangerous sites and enables remote monitoring and parameter configuration from safe areas. It is also applicable to other explosive-prone industrial occasions to build stable data interconnection channels between safe and hazardous zones.