- FPABS here means Fundamentals of PLCs - Allen Bradley/Siemens, a Festo Level 1 Fundamentals credential tested through NC3.
- Allen Bradley and Siemens are separate platform exams with separate records, not one combined test.
- The issuer's curriculum lists 14 preparation topics, from control relays to PLC-based troubleshooting.
- Students need at least 70% plus completed hands-on labs; the NC3 student certification charge is US$0.
What FPABS Means on This Site
On this site, FPABS stands for Fundamentals of PLCs - Allen Bradley/Siemens. It is a Level 1 Fundamentals credential in the Festo Industry Certification Program (FICP), and it covers the core ideas behind programmable logic controllers: how a PLC is built, how it scans and addresses logic, how inputs and outputs behave, and how you read and write basic ladder programs.
The acronym is simply a short label for the two platform variants the program offers. "Allen Bradley" and "Siemens" name the controller families used in the manufacturer-specific examples, labs and exam records. If you have seen the same letters attached to another credential elsewhere, that is a coincidence of abbreviation; everything on this page refers only to the Festo/NC3 PLC fundamentals credential.
If you want a broader orientation, the related explainers What Is FPABS?, What Does FPABS Stand For? and What Is FPABS Certification? cover the same ground from different angles.
Who Stands Behind the Credential
Three names matter when you decode the meaning of FPABS:
- Festo is the governing body and curriculum author. Its Festo Industry Certification Program defines the Level 1 Fundamentals offering and publishes the platform-specific preparation documentation.
- NC3 (National Coalition of Certification Centers) is the administering and testing partner. Exams are delivered through participating institutions and NC3Certs.
- Participating schools and training centers supply the instructor, the required equipment and the proctoring. A candidate typically meets the credential through a course, not as a walk-in test taker.
Two Platforms, Two Exam Records
The slash in "Allen Bradley/Siemens" is not an "and." The two platforms are parallel tracks. Festo publishes a Fundamentals of PLC curriculum for Allen Bradley (document 272391) and another for Siemens (document 272390), both at EN 2025.09. Each curriculum specifies 6 units, 5 labs and 1 project. Those are training components; they are not an exam timer, and they do not mean a candidate must complete both platform exams.
| Item | Allen Bradley variant | Siemens variant |
|---|---|---|
| Festo curriculum document | 272391, EN 2025.09 | 272390, EN 2025.09 |
| Preparation topic headings | Same fourteen topics | Same fourteen topics |
| Training structure | 6 units, 5 labs, 1 project | 6 units, 5 labs, 1 project |
| Virginia CTE record | Own listing, 50 test items | Own listing, 50 test items |
| Passing score (student) | At least 70% | At least 70% |
| Manufacturer-labelled examples | Allen Bradley | Siemens |
The practical consequence: choose the variant that matches the equipment your program uses. Concepts such as scan cycles, Boolean logic and number systems transfer across platforms, but addressing conventions and software screens do not. Note too that "EN 2025.09" identifies the curriculum publication, not a verified exam-form release and not a PLC software version.
The Fourteen Topics Behind the Name
Both platform curricula publish the same fourteen preparation-topic headings. These are unweighted curriculum topics, not a verified formal exam blueprint, so no percentage weights are assigned here, and the list should not be read as proof of exhaustive exam coverage. For a topic-by-topic walkthrough, see FPABS Exam Domains 2026: Complete Guide to All 14 Content Areas.
- Control relays
- Communication protocols
- Programming techniques
- HMI integration
- Networks
- Basic design and operation
- PLC sections: input, logic and output
- Input types: discrete, analog and digital
- Memory types: ROM and RAM
- Logic processing: addressing and scanning
- Output types: discrete, analog and digital
- Numbering systems: decimal, binary, octal, hex and ASCII
- Boolean functions: identity, AND/OR/NOT circuits
- Basic troubleshooting: using a PLC as a troubleshooting tool
Hardware and signal topics
Control relays, PLC sections and I/O types
This cluster is the "what is physically happening" half of the curriculum. Relay logic is the historical ancestor of ladder logic, and many candidates find ladder rungs easier once they can picture a coil and its contacts.
- Be able to describe the input, logic and output sections and trace a signal through all three.
- Distinguish discrete signals (on/off) from analog signals (a continuous range) and digital data.
- Match field devices to input or output type, such as a pushbutton versus a sensor with a varying signal.
Memory, addressing and scanning
Two topics here trip up newcomers: what ROM and RAM each hold, and what the controller does during each scan.
- Know the role of ROM versus RAM in a PLC and why program and data storage differ.
- Understand the scan cycle: read inputs, execute logic, update outputs, repeat.
- Recognize that address formats are platform-specific. An Allen Bradley address and a Siemens address look different even when they mean the same thing.
Logic and number-system topics
Numbering systems and Boolean functions
This is the most "calculation-like" part of the credential, and it rewards practice with small, repeatable conversions.
- Convert among decimal, binary, octal and hexadecimal, and recognize ASCII as a character-coding scheme.
- Build and read truth tables for AND, OR and NOT, and understand identity.
- Translate a simple Boolean expression into a ladder rung, and back.
Systems and integration topics
Programming, HMI, protocols, networks and troubleshooting
The last cluster connects the controller to the rest of the plant and asks you to diagnose problems.
- Apply basic programming techniques in ladder logic, such as seal-in and interlock patterns.
- Explain how an HMI exchanges data with a PLC and what an operator can see or command.
- Describe communication protocols and network concepts at a fundamentals level, without assuming a specific model.
- Use the PLC itself as a diagnostic tool: observe states, isolate faults, separate wiring problems from logic problems.
Format, Passing Score and Cost Mechanics
What the verified records say
The Virginia CTE Resource Center separately lists Fundamentals of PLCs - Allen Bradley and Fundamentals of PLCs - Siemens. Each record shows 50 test items, school-administered online delivery, instructor-determined timing, a 70% passing score and no cost per test. These are platform-specific Virginia records. They are not one combined 100-question examination, and they do not establish a fixed national written-exam timer, which was not verified.
For students, the stated requirements are training by an actively NC3-certified instructor using the required equipment, completion of all hands-on labs, and an exam score of at least 70%. Student recertification is not required. School proctoring and exam-specific open-book or closed-book allowances apply, so ask your instructor what applies to your sitting rather than assuming rules written for instructors apply to you. Details are in FPABS Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Passing score is not pass rate
A 70% threshold tells you how many items you must answer correctly; it says nothing about how many candidates succeed. No current issuer-wide pass rate was verified. One historical conference paper reports that 18 external learners who chose the Siemens exam after early-2021 training at UBC Okanagan all passed. That was a small, self-selected cohort in a special COVID-era arrangement, so it is not a current, Allen Bradley or issuer-wide figure. See FPABS Passing Score 2026 and FPABS Pass Rate 2026: What the Data Shows for the distinction in detail.
What it costs
NC3 lists a student certification charge of US$0. That does not make the whole path free: training tuition and institutional charges are separate. As one institutional example, Virginia Western's bundled PLC/Sensors course (which covers Allen Bradley PLCs and Sensor Technology, not the Siemens branch) lists estimated tuition of US$999, including online resources, lab equipment, software and the credentialing exam. That figure is course tuition, not an exam fee and not a Siemens price, and the college's local Electricity prerequisite is not a universal Festo eligibility rule. The college's own pages also disagree about course length (eight weeks versus four), and neither number is an exam timer. A full breakdown lives in FPABS Certification Cost 2026: Complete Pricing Breakdown.
Key Takeaway
Ask your instructor three questions before you commit: which platform variant your program tests, how your school proctors and times the exam, and whether any institutional fee sits on top of the US$0 NC3 student charge.
What FPABS Is Not
Because the credential name is long and the acronym is short, it is easy to blur it with neighbors. Keep these distinctions straight:
- It is not a Rockwell Automation or Siemens vendor certificate. Rockwell's Logix Programmer Certificate and Siemens' SCE certificates and badges (such as SCE TIA Portal Basics) are separate training paths from different issuers. They are not the issuer of this credential and not replacement syllabi for it.
- It is not a combined two-platform exam. Each platform has its own exam record.
- It is not a software-version test. Do not infer a required programming-software release from the curriculum date or from the older combined guide; prefer the current separate fourteen-topic sheets.
- It is not a salary guarantee. Occupational wage data describes a job category, not a measured credential premium.
For the complete picture of how the credential is positioned, read FPABS Certification and the sibling explainers What Does FPABS Mean? and What Is A FPABS?.
Who Benefits and Where It Fits Careers
This is an entry-level, fundamentals credential, and it tends to appear in technical programs: mechatronics, industrial maintenance, automation and CTE pathways. It signals that a learner has completed supervised hands-on labs and demonstrated working knowledge of PLC basics, which is useful evidence for apprenticeship applications and entry-level technician roles where controllers are part of daily work.
For career context, the U.S. Bureau of Labor Statistics reports a median annual wage of US$73,900 (May 2025) for electro-mechanical and mechatronics technologists and technicians. Treat that as a description of the occupation, not a promise tied to this certificate: it is not a starting salary and not a measured certification premium. Anyone weighing return on investment should read Is the FPABS Certification Worth It? Complete ROI Analysis 2026 alongside FPABS Salary Guide 2026, and browse FPABS Jobs for role types where PLC fundamentals matter.
Since the credential is delivered through coursework, FPABS Training explains what to expect from instructors, labs and equipment.
Sequencing Your Preparation by Topic
Rather than a generic schedule, order your study by dependency: later topics assume earlier ones. Here is one sensible sequence for a four-week push alongside your lab work.
Foundations
- Control relays, PLC sections (input, logic, output), basic design and operation.
- Discrete, analog and digital input and output types.
Processing and number systems
- ROM versus RAM, addressing and scanning on your chosen platform.
- Decimal, binary, octal, hex and ASCII conversions; AND/OR/NOT truth tables.
Programming
- Ladder logic and basic programming techniques, built from Boolean expressions.
- Re-run each lab and the project from memory, then explain every rung aloud.
Connectivity and diagnosis
- HMI integration, communication protocols and networks.
- Troubleshooting with the PLC; then timed mixed review across all fourteen topics.
Your main sources should be the Festo curriculum for your platform and your instructor's lab materials. For a full method, see FPABS Study Guide 2026: How to Pass on Your First Attempt, and keep FPABS Cheat Sheet 2026 handy for a last-day review. To test yourself with original questions, use the FPABS practice test, and if scheduling is on your mind, check FPABS Exam Dates 2026 and ask your school about its local testing windows. If you are unsure how demanding the material is, How Hard Is the FPABS Exam? gives a balanced view, and you can try more drills in the main practice question bank.
Frequently Asked Questions
On this site it means Fundamentals of PLCs - Allen Bradley/Siemens, a Festo Level 1 Fundamentals credential offered through the Festo Industry Certification Program and tested via NC3. The slash reflects two platform variants, each with its own exam record.
No. The two curricula are parallel, not combined, and each platform has a separate examination record. Take the one that matches the equipment in your training program unless your instructor advises otherwise.
Students need at least 70%, plus completion of all hands-on labs under an actively NC3-certified instructor using the required equipment. Virginia's records list 50 test items per platform exam, with timing set by the instructor.
No. The 70% figure is the threshold needed on the exam. No current issuer-wide pass rate was verified, and the one historical cohort report is small, self-selected and Siemens-only, so it should not be generalized.
NC3 lists a student certification charge of US$0, but training tuition and institutional charges are separate and vary by school. Always confirm the full cost with your institution before enrolling.