Pages

Saturday, 6 December 2025

16 Channel 4A Industrial SSR module

 

Solid State Relays (SSR) are semiconductor equivalents of the electromechanical relay and can be used to control electrical loads without the use of moving parts. The  SSR switch  ON / OFF and  0-100% dimming can be controlled using controller, switches  and PLC logics .This switch can be used control light, FAN, power socket, Triac dimming enabled LED's and any other remote ON / OFF or dimming application.




Features:

  • 4A 16 Channel.
  • On/Off control.
  • Circuit enabled with snubber.
  • Operating Voltage 12V/24V DC.
  • Isolated power section from the input.
  • Load Capacity 4 Amp AC(Up to 960 Watt).

Advantages:

  • Unlike electromechanical relays, there are moving parts in a solid state relay.
  • Complete electrical isolation between input and output contacts.
  • No contact bounce issues.
  • AC loads can be easily controlled with a low current DC voltage using a solid state relay providing long life and high switching speeds.
  •  Zero voltage turn-on and zero current turn-off eliminating electrical noise and transient.
  • Ability to switch OFF AC loads at the point of zero load current, thereby eliminating the arcing, electrical noise and contact bounce.
  • LED light dimming.

RPI 4 Model B IoT Trainer Kit

 RPI 4 loT Development Trainer Kit essential development features a plug - and - play design that makes it easy for connections and helps Students, hobbyists, enthusiasts and professionals to focus more on Program/application development. RPI 4 loT Trainer Kit equipped with onboard IO's, communication interfaces & peripherals. It is really easy to design, experiment with, and test circuits without soldering. It's used in many educational institutions and R&D LAB across the world..

ORDER CODE: RDL922





Board Features:

  • Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
  • 4GB LPDDR4 SDRAM
  • 2.4GHz and 5.0GHz IEEE 802.11b/g/n/ac wireless LAN, Bluetooth 5.0, BLE
  • True Gigabit Ethernet
  • 2x USB 3.0 ports, 2x USB 2.0 Ports
  • Fully backwards compatible 40-pin GPIO header
  • 2x Micro HDMI ports supporting up to 4K 60Hz video resolution
  • 2-lane MIPI DSI/CSI ports for camera and display
  • 4-pole stereo audio and composite video port
  • MicroSD card slot for loading operating system and data storage
  • Onboard 5.1V, 3A power via USB-C or GPIO
  • On Board Programming.
  • Plug & Play Interface Connectivity.
  • Professional EMI/RFI Complaint PCB Layout Design
  • Modular Block design makes Easy access & quick Prototyping
  • FRC connectivity features minimize the connection Error.
  • ROHS Compliant High Quality Grade PCB with wooden Enclosure.
  • Open-source Hardware RPI 0 single-core 32-bit up to 240 MHz, Flash 16 MB.
  • Supported most of the open-source platforms for Custom Programming
  • The device offers multiple industrial protocols like MODBUS RTU, MODBUS TCP, JSON, MQTT and FTP and supports secure communication SSL.
  • Supported most of the cloud platforms including Microsoft Azure & AWS etc
  • OTA Firmware upgrade supported
  • On Board Programming.
  • Supported communication over USB, WiFi, Bluetooth, and Modbus RTU and RS232
  • Supported DC 12V Power Supply.
  • 1 * 8 interfacing LED’s.
  • 1 * 4 Menu keypad.
  • 4 * 4 Matrix Keypad.
  • RS232, RS485, USB communication port.
  • 7 Segment Multiplexed Display.
  • 16*2 LCD & OLED Display
  • On Board Wi-Fi/Bluetooth Connectivity
  • 3.3 to 5V Level Converter.
  • Power Supply 3.3V and 5V
  • SD CARD Interface.
  • RTC & EEPROM Interface.
  • DC Motor/ Stepper Motor Driver.
  • Relay, Buzzer.
  • High Quality Grade PCB with wooden Enclosure.

Applications

  • Genetic Low - power IoT Sensor Hub.
  • Genetic Low - power IoT Dataloggers.
  • Cameras for Video Streaming.
  • Over-the-top (OTT) devices.
  • Speech Recognition.
  • Image Recognition.
  • Mesh Network.
  • Home Automation.
  • Smart Building.
  • Industrial Automation.
  • Smart Agriculture.
  • Audio Applications.
  • Health Care Applications.
  • Wi-Fi Enabled Toys.
  • Wearable Electronics.
  • Retail & Catering Applications.

Scope of Learning Experiments

  • LED blinking.
  • 8 bit LED Left shift, Right shift and counting operation.
  • Keypad interrupt interface.
  • 6*2 LCD interface.
  • Matrix Keypad Interface.
  • Traffic light signal interface.
  • 8 bit DIP switch interface.
  • L298 Driver for DC Motor and Stepper motor interface.
  • Communication using UART, I2C & SPI.
  • Buzzer, Relay interface.
  • RS485, RS232 serial communication.
  • RPI4 IO interfacing with different sensor.
  • RTC DS1307I2C protocol interface.
  • AT24C04 EEPROM I2C protocol interface.
  • Wi-Fi Communication.
  • Interfacing SD card and handling file system.
  • Interfacing sensor with & Data parsing using RESTful & Json protocol.
  • FTP Implementation.
  • Interfacing sensor with RPI 4 and MQTT protocol implementation.
  • Exploring MQTT features subscribe & publish methods.
  • MQTT SSL certificate implementation - RPI 4.
  • Interfacing RS485 salve using MODBUS protocol.
  • Interfacing BLE & Data parsing using RESTful / Json / MQTT protocol.
  • Text to speech implementation.
  • Device control through speech recognition & alexa integration.
  • Appliance control through cloud platform using MQTT protocol.
  • Environment data like temp & humidity capturing using cloud platform.
  • Modbus RTU communication and accessing data from Industrial PLC.
  • Wireless TCP / IP socket connection implementation using node and server architecture.
  • BioMedical sensor kit integration and connecting IoT cloud platform for prediction.
  • Implementation of RPI 4 WEB server application.












Biometric Authentication System for PLC and SCADA

 Biometric Authentication System is designed to enhance the security and access control of PLC (Programmable Logic Controller) and SCADA (Supervisory Control and Data Acquisition) systems. By integrating biometric authentication system, we provide a robust and reliable solution that ensures only authorized personnel can access critical industrial control systems.

The product is tested with all PLC’S and supports multiple interface options.

ORDER CODE: RDL810


Features: 

  • Fingerprint scanning is the sole method used for biometric authentication..
  • Integration with existing PLC and SCADA systems for seamless implementation.
  • Secure storage and encryption of biometric data.
  • User management and access control functionalities.
  • Real-time monitoring and logging of access events.
  • Centralized administration and reporting capabilities.
  • Fingerprint enrollment: Max 150 Users.
  • Memory : 16GB.
  • Communication : RS485 MODBUS RTU, MODBUS TCP, RS232, USB.
  • Power supply: DC 24V.

Benefits

  • Higher level of security and access control for critical industrial control systems
  • Prevention of unauthorized access and potential threats to PLC and SCADA systems
  • Reduction in the risk of data breaches and sabotage
  • Compliance with industry regulations and standards
  • Elimination of password-related security vulnerabilities
  • Centralized administration for easy user management and reporting purposes.

Applications:

Our Biometric Authentication System is suitable for a range of industries that rely on PLC and SCADA systems, including:

  • Manufacturing facilities with automated production lines.
  • Energy and utility organizations with power generation & distribution systems.
  • Water treatment plants.
  • Transportation and logistics companies with control and monitoring systems.
  • Oil and gas refineries and petrochemical plants.
  • 4M (Man, Machine, Material, Method) standard implementation.

Fingerprint Sensor:

  • Fingerprint image input me: <0.3 seconds

  • Window area: 14x18 mm

  • Matching method: Comparison method (1: 1)

  • Search method (1: N)

  • Characteristic file: 256 bytes

  • Template file: 512 bytes

  • Storage capacity: 1000 pieces

  • Security Level: Five (from low to high: 1,2,3,4,5)

  • Fake rate (FAR): <0.001%

  • Refusal rate (FRR): <1.0%

  • Search me: <1.0 seconds (1: 1000 hours, mean value)

  • Host interface: UART \ USB1.1

  • Working environment: Temperature: -20  ℃  - +40  ℃  Relave humidity: 40% RH-85% RH (no condensaon)

  • Storage environment: Temperature: -40  ℃  - +85 ℃  Relave humidity: <85% H (no condensaon).


DRY contact:

  • 1x SPDT Relay


Power supply:

  • 12 to 36 volts DC Supply


Enclosure: 

  • Fingerprint Controller Enclosure - IP 20 

  • Fingerprint Sensor Enclosure - IP 65

  • Mounting: Wall / DIN Rail

Dimension: 

  • Fingerprint Controller Enclosure - 151.7 mm X 84.3 mm

  • Fingerprint Sensor Enclosure - 80 mm X 120 mm X 55 mm

  • Mounting: Wall / DIN Rail

Operational Benefits

Ease the authentication process by installing RDL Biometric add on the block as this supports a wide range of industrial communication protocol like RS232, RS485 and TCP/UDP Modbus and offer below mentioned operation benefits.