Introduction
The
evaluation board targets compact programmable logic controller (PLC) applications in the factory
automation domain. It features a powerful human machine interface (HMI) thanks to the 3.5” TFT touchscreen mounted on the
PCB, which eases interaction with the tool.
The board implements a galvanically isolated PLC control unit with robust digital input, digital output modules, expansion
connectivity options, and interfaces.
The control unit consists of a powerful 144-pin
MCU, which handles the industrial IOs on one side and
the TouchGFX display technology on the other side, implementing the ladder logic programming code and several additional
options.
Highly robust and reliable industrial digital input and output modules are placed symmetrically on the PCB, making the system
a 12+12 PLC, that is, a PLC GUI optimized for STM32 microcontrollers, which manages 12 industrial inputs and 12 industrial
outputs.
The 12 industrial inputs have been implemented through the combination of an eight-channel
and two dual
channel
ICs.
The
features 6.25 MHz SPI with daisy chain capability to connect, in this case, the eight-channel output
and reverse polarity, whereas the
features two high- and low-side compatible independent channels,
which can be powered from the external sensors they interface with, and the capability of running in the 60 V range for fail-safe
applications.
The 12 industrial output array consists of an eight-channel
power switch.
The
offers a daisy-chain SPI interface and embedded galvanic insulation, separating logic and power side of 4 kV
and making the solution cost-effective (no opto-coupler is needed).
The
also features connectivity options typical of commercial PLCs through the morpho connectors mounted
on the PCB bottom, ensuring compatibility with
.
The embedded ICs for industrial IO management allow great flexibility in terms of technical features, protections and embedded
diagnostics, when interfacing industrial range inputs (that is, sensors and valves) and outputs (that is, lamps, alarms, and
actuators) with the logic side.
The
companion software package, freely available on
, allows experimenting with these advanced
features and their combination.
Thanks to this software and the smart user interface offered by the TouchGFX, you can learn how the ICs work and exploit
ready-to-use examples as well as ladder logic demonstrations and projects.
Getting started with the STEVAL-PLC001V1 industrial PLC evaluation board with
HMI interface
UM2933
User manual
UM2933
-
Rev 1
-
October 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
