Design high-performance programmable logic controller (PLC) systems with our analog and embedded processing products

Designing PLC systems for factories often include requirements such as a high number of input/output channels in a small space, high throughput and high reliability. Our products enable density and efficiency, along with support for communication standards such as Time-Sensitive Network (TSN) with up to 1 Gbit/s. We can also help you build reliable systems according to the IEC 61508 standard using TI Functional Safety-Compliant devices and documentation.

Why choose TI for your PLC, DCS & PAC designs?


Optimize board space

Our energy-efficient products use novel packaging technologies to help you develop smaller, more dense designs.


Advanced protection

Our integrated products can help you achieve levels of protection that comply with IEC 61000-4.


Flexible configuration

Our products support multifunctional input/output terminals to facilitate planning and configuration flexibility.

Engineering smarter programmable logic controller (PLC) applications

Communication between PLCs and I/O modules

Real-time communication interfaces such as Profinet and EtherCAT enable precise, time-sensitive communication between PLCs and input/output modules. By combining real-time Arm® cores and programmable real-time logic into one package, our multicore processors offer the right combination of high performance and general-purpose processing. The programmable real-time unit industrial communication subsystem (PRU-ICSS) supports most industrial communication protocols as well as Time-Sensitive Network (TSN), along with the ability to handle gigabit speeds.

We cover the entire evolution of field communication, from 4-20 mA with HART to IO-Link, and support technologies such as Single-Pair Ethernet (SPE) with data rates as high as 1 Gbit/s.

Application note
How and Why to Use the DP83826 for EtherCAT® Applications (Rev. C)
Learn more about how to connect an Ethernet PHY onto an EtherCAT® ESC.
Application note
Industrial Communication Protocols Supported on Sitara™ Processors (Rev. E)
This application report shows the industrial communication protocols supported by each of the devices in the Sitara™ MCU+ and Sitara Arm® Cortex®-A processor portfolio, as well as where and how to get these protocols.
White paper
Time Sensitive Networking for Industrial Automation (Rev. C)
Read about how manufacturing networks will continue to evolve with the introduction of TSN features and how we can help support these changes.
Featured products for industrial communications
DP83826E ACTIVE Low latency 10/100-Mbps PHY with MII interface and enhanced mode
DP83TD510E ACTIVE IEEE 802.3cg 10BASE-T1L Ethernet PHY
TIOL112 ACTIVE IO-Link device transceiver with low residual voltage and integrated surge protection

Design durable, small, high-density I/O modules

I/O modules serve as the electrical and physical interface between programmable logic controllers and field sensors/actuators. There are often hundreds of I/O modules on a factory floor, necessitating such requirements as protected terminals and a high channel count per module. Our industrial-grade, power-efficient and size-optimized components work well in such harsh environments.

Along with traditional I/O modules, we also support universal I/O modules and stand-alone remote I/O modules.

Application brief
Supporting High Voltage Common Mode Using Difference Amplifier
Read about a cost effective way to support high-voltage common-mode input in programmable logic controller (PLC) analog input modules.
Product overview
Isolated Power Topologies for PLC I/O Modules and Other Low-Power Applications
Read about how to overcome design challenges with our isolated power topologies for PLC I/O modules and other low-power applications.
White paper
Signal and Power Isolation Considerations for Compact, Efficient Analog Input
In this article, learn about the key considerations when choosing signal and power isolation solutions in group isolated and channel-to-channel isolated analog input modules.
Featured products for I/O modules
INA851 ACTIVE Low-noise (3.2 nV/√Hz) high-speed (22 MHz) fully-differential instrumentation amp with OVP (±40 V)
DAC80508 ACTIVE True 16-bit, 8-channel, SPI, voltage-output DAC with precision internal reference
TPS272C45 ACTIVE 36-V, 45-mΩ, 3-A, 2-ch, Industrial high-side switch with adjustable current limit

Streamline your functional safety system certification

TI Functional Safety-Compliant components help you meet rigorous functional safety standards such as IEC 61508 and ISO 13849. Streamline your certification process by relying on our engineers' expertise, documentation, resources such as failure-in-time rate (FIT) and failure modes, effects and diagnostic analysis (FMEDA), safety certificates and software diagnostics libraries.

Functional safety information
Streamlining Functional Safety Certification in Automotive and Industrial
Whether you are designing for the factory floor or the highway, this white paper explains how we approach designing integrated circuits (ICs) and provides the resources needed to streamline your functional safety design.
White paper
Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A)
Systematic and random hardware failures need to be addressed for you to achieve functional safety compliance. Read about two techniques for estimating the base failure rate (BFR) required to calculate quantitative random hardware.
Video series
Functional safety at TI
Meet the rigorous requirements of functional safety standards, such as ISO 13849 and IEC 61508 with our analog and embedded processing products. Streamline your functional safety system certification with help from our experts.
Featured products for functional safety
AM2634 ACTIVE Quad-core Arm® Cortex®-R5F MCU up to 400 MHz with real-time control and security
TPS37 ACTIVE 65-V window supervisor with ultra-low quiescent current and time-delay function
ADS127L11 ACTIVE 24-bit, 400-kSPS, delta-sigma ADC with easy-to-drive inputs and wideband or low-latency filters

Design & development resources

Reference design
Four-channel synchronous vibration sensor interface reference design
This reference design explains the theory, design and testing of a synchronous, four-channel wideband high-resolution interface. The main targets are the vibration sensing applications, but the design can also be applied to any application that requires wideband, such as three-phase voltage and (...)
Simulation tool
PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference design
Eight-port IO-Link master reference design
This reference design implements an IO-Link master with fast and deterministic timing with eight ports. Each port can be operated with independent bit rate and cycle timing. This design can be used to build a remote IO gateway to connect to OPC UA, Profinet, EtherCAT or Ethernet IP. A PRU-based (...)

Reference designs related to PLC, DCS & PAC

Use our reference design selection tool to find designs that best match your application and parameters.