# PLC System 1 × STM32F407 CPU Board 1 × 16-Channel DI Board 1 × 8-Channel DO Board - **Seller:** [EA Control Tech](https://lectronz.com/stores/eacontroltech), Oakland, California, United States - **Price:** $125.00 (USD, before shipping and taxes) - **Availability:** In stock - **Categories:** Application, Equipment, Technology - **Country of origin:** United States - **Product page:** https://lectronz.com/products/plc-system ## Options **Product Options for PLC System** - 1 × STM32F407 CPU Board 1 × 16-Channel DI Board 1 × 16-Channel DO Board (5 left) - 1 × STM32F407 CPU Board 1 × 4-Channel Analog I/O 1 × 16-Channel DI Board 1 × 8-Channel DO Board [Add $75.00] (5 left) - 1 × STM32F407 CPU Board 2 × 16-Channel DI Board 2 × 16-Channel DO Board [Add $95.00] (5 left) - 1 × STM32F407 CPU Board 1 × 4-Channel Analog I/O 2 × 16-Channel DI 2 × 16-Channel DO [Add $165.00] (5 left) - 1 × STM32F407 CPU Board 4 × 16-Channel DI Board 4 × 16-Channel DO Board [Add $250.00] (5 left) - 1 × STM32F407 CPU Board 1 × 4-Channel Analog I/O 4 × 16-Channel DI 4 × 16-Channel DO [Add $300.00] (5 left) - 1 × STM32F407 CPU Board 8 × 16-Channel DI Board [Add $230.00] (5 left) - 1 × STM32F407 CPU Board 8 × 16-Channel DO Board [Add $260.00] (5 left) ## Links - [Documentation](https://eacontroltech.com/Modular_PLC_System_Manual.pdf) ## Images ![PLC System](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6Njg5NDcsInB1ciI6ImJsb2JfaWQifX0=--de120a1eacb6a9a926e903468c2a1858db291c9c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2026-06-07T17-15-21.125Z-_Modular_PLC_02.jpg) ![PLC System](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6Njg5NDgsInB1ciI6ImJsb2JfaWQifX0=--e4de11e5c1649ab04cae275b777bc4dbc41f61d9/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2026-06-07T17-15-21.125Z-_Modular_PLC_03.jpg) ![PLC System](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6Njg5NDksInB1ciI6ImJsb2JfaWQifX0=--b172d0c05d920382e99d65ad88764d8631fb1f98/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2026-06-07T17-15-21.125Z-_Modular_PLC_04.jpg) ![PLC System](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6Njg5NTAsInB1ciI6ImJsb2JfaWQifX0=--f07381d46ad501097e5b6c384590f6eb4e716268/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2026-06-07T17-15-21.125Z-_Modular_PLC_05.jpg) ![PLC System](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6Njg5NTEsInB1ciI6ImJsb2JfaWQifX0=--3fcc8ce35d1a4e802a1c13e59d52dfca211ad275/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2026-06-07T17-15-21.125Z-_Modular_PLC_06.jpg) ![PLC System](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6Njg5NTIsInB1ciI6ImJsb2JfaWQifX0=--89e0c7ebeb43fe11ad99a279a16074b8853ed86b/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2026-06-07T17-15-21.125Z-_Modular_PLC_07.jpg) ![PLC System](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6Njg5NTMsInB1ciI6ImJsb2JfaWQifX0=--9bcbe2f558fa7b73bdd6ee808693aeff43ac8189/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2026-06-07T17-15-21.125Z-_Modular_PLC_08.jpg) ![PLC System](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6Njg5NTQsInB1ciI6ImJsb2JfaWQifX0=--d6234eb4dbe1dc2b0df4d9b8083e5a0aba99f354/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2026-06-07T17-15-21.125Z-_Modular_PLC_01.jpg) ## Description # EA-PLC Series – Modular Industrial PLC Platform ## What is it? The EA-PLC Series is a modular industrial programmable logic controller (PLC) platform designed for engineers, system integrators, OEMs, and automation enthusiasts who need a flexible control system without paying for unused I/O. Each PLC is built around the EA-CORE-407 CPU module and can be expanded with a combination of analog and digital I/O modules to match the exact requirements of your application. The platform supports: * 1 × EA-CORE-407 CPU Module * 0–1 × EA-AIO-74412R-4CH Analog I/O Module * Up to 8 × Digital I/O Modules * Up to 128 Digital Inputs * Up to 128 Relay Outputs * Up to 4 Universal Analog Channels Whether you're building a machine controller, process automation system, remote I/O station, test bench, or custom industrial product, the EA-PLC Series provides a scalable hardware foundation. --- ## Why was it created? Many industrial PLC platforms are expensive, closed, and force users to purchase large amounts of I/O they may never use. The EA-PLC Series was developed to provide: * Modular expansion * Industrial-grade hardware * Affordable system scaling * Full hardware documentation * STM32-based flexibility Start with a CPU module and add only the I/O required for your project. --- ## Key Features ### Modular Architecture Build the PLC you need: * Digital Inputs only * Digital Outputs only * Mixed I/O systems * Analog + Digital systems Install up to eight digital expansion modules in any combination. ### Powerful STM32F407 CPU The EA-CORE-407 CPU module features: * STM32F407VGT6 ARM Cortex-M4 * 168 MHz CPU * 1 MB Flash Memory * 192 KB RAM * RS485 * CAN Bus * USB-UART * RTC with battery backup * SPI Flash * MicroSD storage ### Universal Analog I/O The optional EA-AIO-74412R-4CH module provides four independently configurable channels based on the Analog Devices AD74412R. Each channel can operate as: * Voltage Input (0–10V) * Current Input (0–25mA) * Voltage Output (0–10V) * Current Output (0–25mA) * 2-Wire RTD (PT100/PT1000) ### Industrial Digital Inputs * 16 channels per module * 24VDC PNP inputs * Opto-isolated field interface * Surge-protected design * Industrial screw terminals ### Industrial Relay Outputs Available in: * 8-channel relay output module * 16-channel relay output module Relay specifications: * SPST Normally Open * 5A Contact Rating * 30VDC / 250VAC Switching * Industrial-grade relays ### Industrial Protection All modules include: * TVS surge protection * Reverse polarity protection * 24VDC industrial operation * Robust field wiring interfaces ### Fully Documented Documentation includes: * System Manual * Module Manuals * Connector Pinouts * GPIO Maps * Mechanical Dimensions * Wiring Guidelines * Configuration Rules --- ## Applications * Industrial Automation * Machine Control * Process Control * Energy Management * Building Automation * Test & Measurement Systems * Remote I/O Stations * OEM Equipment --- ## Designed and Manufactured in the USA The EA-PLC Series is designed, assembled, and tested in the United States with a focus on reliability, flexibility, and long-term maintainability.