Internet of Things (IoT) Box (Solution is a part of Multipurpose Automation Box)

Brief description:

This tender document outlines the technical and functional requirements for the procurement and deployment of an IoT Box for energy infrastructure applications. The solution is expected to provide secure, reliable, and efficient data acquisition, monitoring, and control capabilities, facilitating cloud-based Asset Management and Load Management functions. The IoT Box solution is intended for deployment in following critical environments:

• Electrical substations – Enabling real-time monitoring of MV and LV switchgears and other critical assets.
• EV charging infrastructure – Supporting demand-side load management and optimization.

The proposed system must be modular, scalable, and inter operable with existing automation and control infrastructure. The hardware and software components shall adhere to industry standards for performance, cybersecurity, and reliability.

Hardware Requirements:

• Gateway / Station Controller:
  The Gateway / Station Controller shall serve as the central processing unit of the IoT system, ensuring data acquisition, processing, and communication. The details are:

• Processor & Performance: Multi-core processing capability with real-time data handling and high-speed computational efficiency.
• Power Supply: Universal voltage range ensuring compatibility with industrial power systems.
• Communication Interfaces: Ethernet LAN connections and serial communication interfaces such as RS485 and RS232.
• Supported Protocols: IEC 60870-5-101/103/104, IEC 61850, Modbus-RTU/TCP, ensuring compatibility with various industrial automation systems.
• Hardwired Signals: Capable to integrate digital/analog signals via input modules.
• Cyber Security: Integrated crypto chip, integrated software firewall, VLAN support
• Environmental Compliance: Operational temperature range -25°C to +70°C, meeting IEC-compliant EMC protection standards for harsh industrial conditions.
• Data Storage: The configuration of a Gateway / Station Controller (firmware and parameters) can be stored centrally on an exchangeable, non-volatile storage card. When the Gateway / Station Controller is restarted, and also when individual modules are restarted, all needed data are to be automatically transmitted from the storage card to all CPUs and modules.
• 3rd Party Applications can be installed on the processor and operate independently Gateway/Controller functionalities.

• Communication Equipment:
  To ensure robust and secure communication between IoT devices and cloud-based applications, multiple communication interfaces could be integrated at the IoT Box depending on the communication requirements of the project, such as IEC 61850 or remote connectivity. The system design should remain flexible to support various protocols and interface types, enabling integration with both legacy and modern infrastructure. Additionally, the communication setup should consider scalability, cybersecurity, and remote access capabilities to meet operational and maintenance needs efficiently

• Enclosure:
  To provide adequate protection for IoT components, the enclosure details are as follows

• Dimensions: 380x380x210
• Degree of protection: IP54
• Colour: RAL7035
• Flanges for cable entry: Bottom
• Rated operational voltage: 230V AC / 24V DC
• Enclosure Temperature: 0°C to + 50°C
• Resistance to Corrosion: C3S as per IS12944-6
• Material thickness – door: 1,5 mm
• Material thickness – enclosure: 1, 38 mm
• Material thickness of mounting plate: 2 mm
• EMC: Applicable

Functional Requirements:
IoT Gateway Functionalities:

The IoT Gateway must support the following key functionalities to enable secure and scalable deployment:

• Real-time Data Acquisition & Processing
• Remote Monitoring & Control
• Cybersecurity & Compliance
• Scalability & Modularity
• Cloud Integration

IoT Box System Architecture