168 articles in this category
Plan and program a CompactLogix 5380 system from controller and 5069 I/O selection through Studio 5000 tasks, tags, routines, testing and commissioning.
Learn how pneumatic, electro-pneumatic and digital valve positioners turn a controller command into valve travel. Includes calibration steps, failure behavior and a free checklist.
Design and program a ControlLogix 5580 system around chassis ownership, I/O, EtherNet/IP, tasks, equipment modules, produced tags, testing and commissioning.
Select and commission a current transformer using ratio, window size, accuracy, burden, polarity and secondary safety—not primary current alone.
Read a centrifugal pump curve by finding the system-curve intersection, then check efficiency, power, NPSH, operating range and control behaviour.
Commission analog and digital loops from field device to PLC, HMI, alarm and final element. Includes a five-point procedure, worked 4–20 mA example and free loop sheet.
Configure an FX5U in GX Works3, identify the exact I/O variant, map devices and labels, build a first motor project, simulate, download and commission it safely.
Choose a NEMA enclosure type from the actual environment—not a guessed IP equivalent. Compare Types 1, 3R, 4, 4X, 12 and 13, then check heat, corrosion, openings and installation details.
Read a PLC block diagram from field inputs through modules, CPU, memory, communications and outputs. Includes scan flow, architecture variants and a planning worksheet.
Learn how to read PLC wiring diagrams by tracing complete current paths through digital inputs, PNP and NPN sensors, relay and transistor outputs, 4–20 mA loops, commons, shields and commissioning evidence.
Design and troubleshoot PROFIBUS DP RS-485 cable using the correct segment length, two powered terminations, shielding, connector assembly and commissioning tests.
Understand resistance temperature detectors and PT100 sensors, choose 2-, 3- or 4-wire measurement, estimate lead error, configure a transmitter and troubleshoot a loop.
Identify, select and program a Siemens S7-1200 or S7-1200 G2 with a version-scoped TIA Portal workflow, tested block architecture, simulation limits and commissioning evidence.
How to choose a 24VDC power supply for a control panel — sizing the load and margin, inrush, redundancy, protection, and DIN-rail mounting considerations.
The 4-20mA current loop explained — why current beats voltage, loop components, 2-wire vs 4-wire, live-zero diagnostics, and how to wire and scale it in a PLC.
The 6-axis robot explained — what each of the six axes does, why six axes give full orientation, the work envelope, singularities, and common applications.
Automated guided vehicles (AGVs) explained — types, navigation methods (wire, magnetic, laser, vision), how they're controlled and dispatched, and AGV vs AMR.
AI quality inspection explained — how deep-learning vision finds defects that rule-based machine vision misses, training, deployment, and PLC line integration.
Alarm management best practices — rationalize and prioritize, kill nuisance alarms, set proper deadbands and delays, hit EEMUA targets, and implement it in the HMI.
The arc flash boundary explained — what it means (the 1.2 cal/cm2 distance), how it differs from shock approach boundaries, and how it's found in an arc flash study.
Arc flash PPE categories explained — what CAT 1 to 4 mean, the cal/cm2 ratings, the arc rating (ATPV), required clothing per category, and how to select PPE.
Cobot programming explained — lead-through/hand-guiding, block teach pendants, scripting (URScript/Python), and how a cobot integrates with a PLC-controlled cell.
The delta robot explained — how the parallel-arm design achieves extreme speed, the work envelope, why it excels at pick-and-place, and PLC/vision integration.
The digital thread explained — a connected data flow across a product's lifecycle, how it differs from a digital twin, and the role of PLC/plant data.
Edge computing in manufacturing explained — processing data near the machine, edge vs cloud, typical use cases, edge devices, and how it connects to PLCs and SCADA.
How to design an electrical control panel — schematic and layout drawings, component selection, enclosure sizing, PLC I/O layout, wire numbering, and UL 508A basics.
Stop categories explained — the difference between Stop Category 0, 1, and 2 per IEC 60204-1, how each removes power, and how to wire an E-stop correctly.
FANUC offline programming with ROBOGUIDE explained — how the simulation works, building a cell, creating and testing TP programs offline, and downloading.
The main types of flow meters — magnetic, Coriolis, vortex, ultrasonic, turbine, DP — how each works, what fluids they suit, and how they wire into a PLC.
A HAZOP study explained — the node concept, the seven guide words, the workshop process and worksheet, and how a HAZOP action becomes a safety instrumented function.
High performance HMI explained — the ISA-101 philosophy, gray backgrounds and muted color, situational awareness, hierarchy of displays, and analog indicators.
Design HMI screens around operator tasks, measurable salience, contextual process data, explicit quality, safe command interaction and observed usability evidence.
Incident energy explained — what cal/cm2 means, how available fault current and clearing time drive it, the IEEE 1584 method, and why it sets your PPE and boundary.
Industrial grounding and bonding explained — earthing vs bonding, safety vs signal/noise ground, ground loops, shielding, and grounding for PLCs and VFDs.
Industrial thermography explained — how infrared thermal imaging finds electrical and mechanical faults, what it detects, emissivity, and its role in PdM.
ISA-95 explained — the automation hierarchy levels (0-4), the functional and object models, ISA-95 vs the Purdue model, and how it frames MES/ERP integration.
The main level measurement technologies — radar, ultrasonic, hydrostatic, capacitance, float, guided wave — how each works, and how they connect to a PLC.
Safety light curtains explained — how the transmitter/receiver beams detect intrusion, resolution and safety distance, muting and blanking, and PLC/safety wiring.
A limit switch explained — how the snap-action contacts work, the types, NO vs NC for fail-safe logic, and how to wire one to a PLC discrete input.
A load cell explained — how the strain-gauge Wheatstone bridge works, the types, mV/V output, and how it wires through an amplifier to a PLC analog input.
A clear lockout/tagout (LOTO) procedure — the six OSHA steps, energy isolation, verification, and why LOTO is essential before working on PLC-controlled machines.
Machine guarding explained — fixed, interlocked, and adjustable guards, presence-sensing devices, OSHA/ISO requirements, and how guards tie into the safety system.
How to read a motor nameplate — voltage, FLA, HP/kW, RPM, service factor, efficiency, insulation class, frame, and what each value means for VFD and protection setup.
Motor protection explained — overload, short circuit, phase loss, and thermal protection, the devices that provide it, and how protection ties into the PLC.
MQTT vs Sparkplug B compared — topic structure, JSON vs Protobuf payloads, state management, and when controls engineers should use plain MQTT or Sparkplug.
The overload relay explained — thermal vs electronic, how it protects a motor, trip classes, how to set the FLA dial, and how electronic relays talk to a PLC.
Performance Level (PL) explained — what PLa-PLe mean in ISO 13849, how PLr is determined with the risk graph, MTTFd, DC, and Category, and PL vs SIL.
PLC addressing explained — how I/O and memory addresses work, rack/slot/point notation, Allen-Bradley vs Siemens schemes, and tag-based vs address-based.
Scale PLC analog inputs from raw counts to engineering units, verify the result with a five-point loop check, and separate software scaling from instrument calibration.
PLC data types explained — BOOL, INT, DINT, REAL, WORD, and strings, their sizes and ranges, signed vs unsigned, and how to choose the right type.
PLC math instructions explained — ADD, SUB, MUL, DIV, MOD, and the compute (CPT) instruction, integer vs float pitfalls, overflow, and ladder examples.
The PLC one-shot explained — rising and falling edge detection, the ONS/OSR/OSF instructions, why you need a one-shot, and ladder examples you can reuse.
Understand PLC watchdog timers, scan cycles, task periods and overruns; measure worst-case execution, diagnose timeout faults and choose a defensible recovery path.
PLC sequencer instructions explained — how SQO/SQI/SQL step through a data table, when to use a sequencer vs individual rungs, and a ladder example.
PLC shift register instructions explained — how BSL/BSR shift bits, the classic conveyor product-tracking application, and a ladder example you can reuse.
Power quality and harmonics explained — what harmonics are, THD, the problems VFDs and nonlinear loads cause, IEEE 519, and how to mitigate them.
How a pressure transmitter works — sensing technologies, gauge vs absolute vs differential, range and turndown, and how to wire and scale one into a PLC.
A process historian explained — how time-series historians store plant data, how they differ from SQL databases, compression, and how PLC/SCADA tags get logged.
Choose an inductive, capacitive or photoelectric sensor from the target, gap, environment, optical mode, PLC input and measured acceptance test.
The Purdue model explained — the levels (0-5), the DMZ between IT and OT, how it structures industrial networks, and its role in OT cybersecurity and segmentation.
Reliability Centered Maintenance (RCM) explained — the 7 questions, the four maintenance strategies, the RCM process, and how it pairs with PLC-based monitoring.
Robot palletizing explained — how a palletizing robot works, pattern generation, gripper/EOAT choices, palletizing software, and PLC/cell integration.
Robot welding programming explained — teaching weld paths, weld schedules, seam tracking and touch sensing, weave patterns, and PLC/cell integration.
Safety circuit categories explained — what Category B, 1, 2, 3, and 4 mean in ISO 13849, single vs dual channel, fault detection, and how they relate to PL.
Safety laser scanners explained — how time-of-flight scanning detects intrusion, protective and warning fields, how they differ from light curtains, and AGV use.
Shaft alignment explained — angular and offset misalignment, why it causes failures, the methods (straightedge, dial, laser), and alignment tolerances.
A temperature transmitter explained — how it converts an RTD or thermocouple to 4-20mA, head vs rail mount, why use one over a direct sensor, and PLC wiring.
Thermocouple types explained — the J, K, T, E, N, R, S, B types, their temperature ranges, materials, color codes, accuracy, and how to choose one.
How to calibrate a transmitter and 4-20mA loop — the 5-point check, zero and span, as-found/as-left, loop calibration vs bench, and verifying at the PLC.
The Unified Namespace (UNS) explained — a single source of truth for plant data, how it differs from point-to-point integration, and how MQTT/Sparkplug enable it.
Vibration analysis basics — amplitude, frequency, the FFT spectrum, common fault signatures (imbalance, misalignment, bearings), and how sensors feed a PLC.
A cobot (collaborative robot) explained — how it differs from an industrial robot, the safety tech that lets it work near people, and how it fits a PLC-controlled cell.
A safety relay explained — how it differs from a normal relay, dual-channel monitoring, reset types, and how it wires an E-stop or guard to stop a machine safely.
A smart transmitter explained — how it differs from a conventional 4-20mA transmitter, HART and digital protocols, remote configuration, and diagnostics.
A soft starter explained — how it reduces motor inrush and mechanical shock with controlled voltage ramping, its components, benefits, limits, and PLC control.
Alarm management keeps operator alarms relevant, actionable and controlled through philosophy, rationalization, design, monitoring, maintenance and audit.
A remote terminal unit (RTU) explained — what it does, how it differs from a PLC, where it's used in SCADA and remote sites, and its communications.
Arc flash explained — what causes it, arc flash vs arc blast, the energy and hazards, the arc flash boundary, required PPE, and staying safe working in control panels.
NFPA 70E explained — what the electrical safety standard covers, the energized-work rules, arc flash and shock risk, PPE, and how it relates to OSHA.
OEE (Overall Equipment Effectiveness) explained — the three factors, the Six Big Losses, what a good OEE score is, and how it's measured from PLC machine data.
Sparkplug B explained for controls engineers — the standardized MQTT topic namespace, Protobuf payloads, birth/death certificates, and the Unified Namespace.
Digital twins in manufacturing — types, use cases, benefits, and the real data pipeline that feeds them: PLC tags and sensors through OPC UA to the twin model.
Functional safety explained for controls engineers — the safe state, the safety lifecycle, IEC 61508/61511/62061 standards, SIL, and what changes in your PLC and panel.
A step-by-step VFD programming tutorial — safety/LOTO, motor nameplate entry, speed reference, accel/decel, control mode, plus a brand parameter cheat-sheet.
Hydraulics explained for automation — Pascal's law, force multiplication, the core components, types of hydraulic systems, and how PLCs control hydraulic machinery.
How industrial robot programming works — teach pendant, lead-through, and offline methods, the major robot languages compared, and how PLC programmers can transition.
Learn PLC servo motion and encoder control: architecture, selection, sizing, profiles, homing, programming, commissioning and fault evidence.
Pneumatics basics for automation — compressed air, the core components, how a pneumatic circuit works, actuators and valves, and how a PLC controls them.
A practical guide to relay logic — how relays implement control logic, reading line/ladder diagrams, components, advantages and limits, and how it led to PLCs.
A complete guide to the types of industrial sensors used in automation — proximity, photoelectric, temperature, pressure, flow, level — and how each wires to a PLC.
IEC 62443 explained — the structure of the series, security levels (SL 1-4), zones and conduits, the 7 foundational requirements, and how to apply it on your plant floor.
Safety Integrity Level (SIL) explained — what SIL 1, 2, 3 and 4 mean, PFD and risk reduction, how SIL is determined, and how it maps to your safety PLC and SIF.
You don't need a $5,000 trainer rig to practice PLC programming at home. Seven practical methods ranked by cost, realism, and hiring value — from browser simulators to a used MicroLogix on your bench.
SolisPLC offers genuinely practical, plant-floor course content and a free tutorial library that goes deeper than most. This honest review covers what it does well, where it falls short, current pricing, and how it compares to RealPars.
Reference guide for the Allen-Bradley 1747 series. 1747-CP3, 1747-UIC, 1747-PIC, 1747-AENTR, 1747-SDN, 1747-SN, 1747-BA battery, RSLogix 500 setup, and migration paths.
Turn an Arduino or Raspberry Pi into a functional PLC for under $100. Complete guide covering OpenPLC runtime, Codesys on Pi, IEC 61131-3 programming, real I/O wiring, and when a DIY PLC actually makes sense.
Best cheap PLCs in 2026, ranked. Delta DVP, Fatek, Xinje, Wecon, Inovance, Kinco, Outseal, OpenPLC, Allen-Bradley Micro800, Siemens LOGO! — honest pros, cons, and when cheap is false economy.
The 12 PLC programming mistakes that show up in every plant audit — from output coil reads and missing fault handling to hard-coded magic numbers. Each with the fix and a code example.
A practical Delta DVP buying guide covering DVP-ES2, EX2, SS2, SX2, SA2, SE, SV2, and EH3. Specs, pricing tiers, comms, motion, and a clear selection matrix.
Complete roadmap for learning PLC programming in 2026. Realistic 6-month self-taught path covering tools, scenarios, vendors, certifications, and how to land your first PLC programmer role.
Complete mini PLC buying guide 2026. Compare 10 miniature PLC options from AutomationDirect Click, Siemens LOGO!, Allen-Bradley Micro800, Eaton easyE4, and more. Pricing, I/O counts, programming, and which fits your project.
Practical Mitsubishi FX2N programming guide for engineers maintaining legacy machines. GX Developer setup, soft elements, instruction set, comms, and migration to FX3U/FX5U.
Complete setup guide for the Mitsubishi USB-SC09 / USB-SC09-FX programming cable. Driver install on Win 10/11, COM port configuration, GX Developer transfer setup, and the genuine-vs-clone story.
Complete Schneider Zelio Logic guide. SR2 vs SR3 hardware, Zelio Soft 2 software walkthrough, ladder vs FBD, comms options, application examples, and when to outgrow Zelio.
Hard-won lessons from self-taught PLC programmers — what to learn first, the mistakes that cost months, the tools that actually matter, and the soft skills that distinguish good controls engineers from great ones.
Install, configure, and troubleshoot the Siemens 6ES7972-0CB20-0XA0 PC Adapter USB for S7-200/300/400 programming. Driver setup, PG/PC interface, MPI vs PROFIBUS, and common faults.
Learn a verified Siemens LOGO! workflow: choose the exact controller, license LOGO! Soft Comfort, build two function-block examples, simulate faults, and commission safely.
Choose a Siemens S7 PLC by process, I/O, performance, communications, availability and lifecycle requirements—not a model-name shortcut.
Complete guide to Siemens Step7 / Simatic Step7 — the legacy Siemens PLC programming environment for S7-300 and S7-400. Hardware support, programming languages, migration to TIA Portal, and what's still maintained in 2026.
Design the boundary between an emergency-stop device, safety relay, final elements and standard PLC diagnostics, with reset, EDM, fault-test and validation evidence.
Tune a PLC PID loop from verified signals and timing through step testing, model identification, conservative gain selection, anti-windup, acceptance tests, and as-left evidence.
Can you actually learn PLC programming on a school-issued Chromebook? Yes — but not the way most tutorials assume. Complete 2026 guide to what works on ChromeOS, what doesn't, and how to get started without voiding your warranty.
TIA Portal on Wine? Studio 5000 on CrossOver? Codesys on Raspberry Pi? Honest breakdown of every Linux PLC programming option in 2026 — with the wins, the dead ends, and the right tool for each job.
Can you run TIA Portal on a Mac? Studio 5000? Codesys? Honest 2026 breakdown of every Mac workaround — Parallels, UTM, Windows 365, browser-based — with real costs and failure modes.
Readers kept asking the same question: 'Where can I actually practise ladder logic?' PLC Simulation Software is our answer.
Complete Allen-Bradley PLC fault code reference for CompactLogix, ControlLogix, and MicroLogix. Lookup major and minor fault codes with causes and step-by-step recovery procedures.
A practical, evidence-based route into PLC programming from electrical, maintenance, engineering, software or career-change backgrounds.
Diagnose Siemens S7-1200 and S7-1500 faults from CPU state, TIA Portal diagnostics, device and channel evidence, online/offline comparison, traces and controlled recovery.
Complete guide to integrating Moxa devices with PLCs. ioLogik remote I/O setup, MGate protocol converters, industrial switches, and step-by-step Modbus TCP configuration.
Master AS-Interface with this comprehensive tutorial covering AS-i bus, network configuration, PLC integration, ASIsafe, and sensor/actuator networking.
Master Foundation Fieldbus protocol. Complete guide covering H1 bus architecture, device integration, function blocks, and advanced control strategies.
Master HART protocol for industrial instrumentation. Learn HART communication, device integration, multi-drop networks, and advanced diagnostics.
Learn the Keyence PLC workflow in KV STUDIO: trial access, device addressing, a motor-latch example, simulation, and model-selection checks.
Master PLC predictive maintenance with this comprehensive guide covering condition monitoring, sensor integration, programming techniques, and industrial applications for maximizing equipment uptime.
Comprehensive PLC vs Arduino comparison covering hardware, programming, reliability, costs, and applications. Learn when to use Arduino vs PLC for automation projects.
Comprehensive PLC vs PAC comparison covering capabilities, costs, applications, and decision criteria. Learn which programmable controller is right for your automation project with expert analysis.
Master POWERLINK protocol for real-time industrial automation. Learn architecture, motion control, synchronization, and implementation strategies.
Master WAGO PLC programming with this comprehensive tutorial covering PFC controllers, e!COCKPIT, BACnet, web visualization, IIoT, and building automation.
A vendor-neutral bottling-line control example covering state machines, station handshakes, filling, tracking, recipes, inspection, CIP and commissioning.
Master CODESYS programming with comprehensive tutorial. Learn installation, project creation, ladder logic, structured text, simulation, and hardware connection step-by-step.
Expert comparison of DeviceNet vs PROFINET protocols covering speed, architecture, installation, costs, migration strategies, and when to choose each industrial communication protocol.
Learn an elevator PLC teaching model for call queues, travel states, door requests, leveling, diagnostics and test cases—with clear production safety boundaries.
Master food processing PLC programming with this comprehensive guide covering temperature control, CIP automation, batch recipes, traceability, and food safety compliance.
Master material handling PLC programming with this comprehensive guide covering conveyor control, sortation systems, AS/RS, WMS integration, and warehouse automation.
Select an Omron controller, build a current NJ/NX Sysmac Studio project, map I/O, schedule tasks, test logic and diagnose faults without mixing the CX-Programmer and Sysmac generations.
Program packaging machines with a reproducible filling and changeover example, test matrix, safety boundary, fault handling and commissioning checklist.
Master parking system PLC programming with this guide covering entry/exit control, vehicle detection, guidance systems, automated parking, and smart garage automation.
Master pump control PLC programming with this comprehensive guide covering VFD integration, lead-lag control, multi-pump sequencing, and energy-efficient pump automation.
Program a Schneider Modicon PLC through an exact controller-to-software decision, symbolic I/O, IEC logic, a tested tank sequence, communication contracts and evidence-led diagnosis.
Build safer water-treatment PLC logic for pump sequencing and chemical dosing with permissives, manual/auto states, failure tests and EPA guidance.
Learn classic CC-Link and CC-Link IE architecture, wiring, station setup, Mitsubishi PLC integration, commissioning, and diagnostics.
In-depth comparison of CODESYS vs TwinCAT 3 for industrial automation. Analyze features, costs, real-time performance, motion control, and career implications.
Apply ISA-101 HMI design principles with a practical display hierarchy, restrained color, alarm guidance, screen examples, and an engineering review checklist.
Compare OPC UA and OPC DA architecture, security, data models, failure modes, and a staged migration plan with reproducible acceptance tests.
Master PLC documentation with proven best practices, industry standards, and professional templates. Complete guide to creating, maintaining, and managing control system documentation for automation projects.
Master PLC programming best practices with industry-standard coding guidelines. Learn naming conventions, documentation, optimization, and IEC 61131-3 standards for professional automation.
Top 15 PLC programming books for beginners reviewed and ranked. From ladder logic basics to advanced industrial automation. Free PDFs, comparisons, and learning paths included.
Comprehensive PLC security best practices guide. Learn defense-in-depth strategies, network segmentation, access control, secure programming, and IEC 62443 compliance to protect industrial control systems from cyber threats.
Troubleshoot PLC faults systematically with an eight-step process covering power, CPU status, field I/O, communications, logic, safety, and documented recovery.
Apply SCADA engineering best practices across architecture, segmentation, redundancy, alarm management, HMI design, cybersecurity, testing, and lifecycle governance.
Comprehensive comparison of SCADA vs DCS vs PLC control systems. Understand architecture differences, cost considerations, typical applications, and how to choose the right industrial control system.
Master SERCOS III protocol for high-performance motion control. Learn architecture, configuration, ring topology, motion programming, and implementation best practices.
Master CANopen protocol for industrial automation. Learn object dictionary, PDO/SDO communication, NMT state machine, and PLC integration examples.
Understand EtherCAT on-the-fly processing, ESI configuration, distributed clocks, states, working counters and a practical commissioning workflow.
Connect an IO-Link master to a PLC, configure port modes and the exact IODD, map cyclic process data, control parameter writes, and diagnose device-to-controller faults.
Build and diagnose Modbus RTU over RS-485 from the physical trunk and serial settings through frames, register mapping, timing, commissioning evidence, and fault isolation.
Master advanced Ladder Logic programming techniques with expert guide. Learn complex logic patterns, optimization strategies, and professional best practices.
Learn PLC programming step-by-step with practical examples. Beginner-friendly guide covers basics, hardware setup, and first programs. Start programming today.
Master HVAC PLC programming for building automation. Learn control strategies, energy optimization, and system integration. Start your HVAC career today.
Master industrial control systems with comprehensive guide. Learn DCS, PLC, SCADA integration, and control strategies. Build reliable automation solutions.
Use a deep PLC ladder logic instruction reference covering contacts, coils, edges, timers, counters, data, math, control flow, vendor dialects, scan behavior and a printable symbol chart.
Learn PLC programming through an evidence-led path from control fundamentals and scan execution to ladder logic, Structured Text, simulation, vendor tools, troubleshooting and a job-ready portfolio.
Complete manufacturing automation guide for modern production. Learn automation strategies, technology selection, and implementation. Start automating today.
Choose, configure and troubleshoot PLC networks by control role—not protocol popularity. Compare EtherNet/IP, PROFINET, EtherCAT, Modbus and OPC UA.
Complete guide to PLC programming certifications in 2026. Learn requirements, benefits, salary impact, and preparation strategies. Get certified today.
Build conveyor PLC logic with stop-dominant motor control, VFD handshakes, product tracking, zone accumulation, fault recovery and a practical test matrix.
Master Siemens TIA Portal programming with comprehensive tutorial. Learn step-by-step programming, hardware configuration, debugging techniques and examples.
Compare PLC timer types with scan-accurate behavior: TON, TOF, TP, retentive and vendor-specific timers, plus examples, timing diagrams, selection and boundary tests.