PLC & HMI Programming
Sequence control, interlocks, alarms, recipes, data handling, operator interfaces, and IEC 61131-3 programming in Ladder Logic and Structured Text.
Industrial Controls • Automation • Electrical Integration
Controls engineering built around your process.
PLC and HMI programming, custom control panels, VFD integration, legacy machine upgrades, industrial networking, and custom C/C++ software—from initial design through commissioning.
10+ Years of Controls Experience
Industrial troubleshooting, retrofits, programming, and commissioning.
Design Through Startup
Electrical controls, PLC logic, HMI development, networking, and documentation.
North Carolina Based
Onsite project support with remote diagnostics and engineering capability.
Controls-First Engineering
Modern automation without losing sight of the machine.
Evangelista’s Electric combines field electrical experience with controls engineering and software development. That means the design is considered from the sensor and control cabinet all the way through the PLC, HMI, network, and operator experience.
Primary focus: industrial controls, automation, machine modernization, process control, and custom integration.
Core Capabilities
Controls and automation services
Support for new equipment, existing production assets, and modernization projects where electrical, controls, and software must work as one system.
Control Panels & Electrical Integration
Custom cabinet design, component selection, I/O integration, VFD controls, power distribution, field wiring, and system checkout.
Legacy Machine Modernization
Replacement of aging relay, analog, or unsupported PLC systems while preserving the useful mechanical equipment and proven process.
Industrial Networking & Remote Support
Modbus TCP/RTU integration, machine networking, secure remote access, troubleshooting tools, and communication between PLCs, HMIs, drives, and computers.
Custom C/C++ & Embedded Controls
Custom firmware, microcontroller applications, data collection utilities, protocol interfaces, Linux-based tools, and purpose-built machine functions.
Process Control & Troubleshooting
Temperature, pressure, speed, position, motion, encoder, and production control applications—plus systematic fault finding when equipment is down.
Selected Work
Real projects. Real equipment. Purpose-built solutions.
The examples below use photographs and screen captures from work directly completed by Evangelista’s Electric.
Control Panel Integration
Custom machine controls and operator interface
Integrated PLC control, distributed I/O, motor switching, field devices, and touchscreen operation into a serviceable machine control system.
HMI & Software
Operator-focused control and diagnostics
Custom displays organize commands, machine states, production information, alarms, and troubleshooting data so operators and maintenance personnel can act quickly.
Legacy Modernization
Remote monitoring added to existing equipment
Older process equipment was extended with modern sensing, control logic, alarming, and browser-accessible monitoring without replacing the entire machine.
All featured photographs and software images represent work directly performed on customer projects—not stock photography.
Project Execution
A practical path from problem to production
Assess
Review the process, existing controls, failure points, operator needs, available documentation, and production constraints.
Design
Define the architecture, I/O, electrical requirements, sequence of operation, communications, safety interfaces, and service strategy.
Build & Program
Develop the control panel, PLC logic, HMI screens, software utilities, network configuration, and supporting documentation.
Commission & Support
Test the system, verify field operation, tune the process, train users, resolve startup issues, and support the equipment after handoff.
Technology & Integration
The platform follows the application.
Controls are selected around capability, maintainability, availability, customer standards, and the long-term needs of the machine.
AutomationDirect Productivity Series
CLICK & CLICK Plus
Finder Opta
Unitronics
C-more HMI
IEC 61131-3
C & C++
Linux
Modbus TCP / RTU
VFD & Process Control
Industrial Ethernet
IoT & Data Collection
Protect Existing Equipment Investment
Modern controls for machines that still have productive life.
Aging controls do not always justify replacing the entire machine. Strategic modernization can improve reliability, diagnostics, safety interfaces, repeatability, and access to replacement components while preserving the mechanical asset.
- Replace obsolete PLCs, displays, relays, and proprietary controls
- Add alarms, fault history, production data, and remote visibility
- Integrate modern sensors, encoders, drives, and networking
- Document the upgraded system for future maintenance
Additional Before & After
Wastewater pump control cabinet modernization
A second project comparison showing the existing wastewater pump controls beside the completed modern control installation.
Additional Capabilities
Electrical experience beyond the control cabinet
Select exhibit, display, and electrical projects remain available, supported by the same emphasis on clean installation, dependable operation, and practical serviceability.
Exhibit & Display Controls
Modular power distribution, custom lighting controls, interactive elements, RGB systems, remote monitoring, and wiring designed for repeated setup and teardown.
Electrical Troubleshooting & Upgrades
Selected electrical repairs, alterations, equipment connections, upgrades, and troubleshooting where licensed field experience is essential to the solution.