Pre-hire practical screen
Give candidates bounded machine requirements and observe whether their program handles normal, boundary and unsafe cases.
Use timed, auto-graded PLC and automation tasks to screen candidates, baseline a maintenance team and verify training transfer across motors, I/O, timers, counters, safety and process-control faults.
Practical assessment model
Functional Description to Ladder
Functional-description-to-ladder capstone assessment
Fault-injection tasks for I/O, timers, counters and scan-order defects
Deterministic tests repeated against the same machine physics
Scenario attempts, pass state and completion evidence for team review
Performance-based evidence
Candidates receive functional requirements or a faulted control system, then produce working logic or a diagnosis. The same deterministic test cases make results comparable without reducing the exercise to multiple choice.
Give candidates bounded machine requirements and observe whether their program handles normal, boundary and unsafe cases.
Separate ladder fundamentals, I/O diagnosis, motor control, sequencing and process-control gaps before assigning training.
Re-assess with equivalent scenarios and objective test cases instead of relying on attendance or self-reported confidence.
Use the 46-scenario CCST practice pack for broader controls-technician preparation and a timed mock exam.
Scenario library
Translate a complete functional specification into working PLC logic and satisfy the full grader.
Identify a defect caused by execution order rather than obvious Boolean logic.
Diagnose retentive behavior and prove the correction through repeated cycles.
Find a production-count fault that emerges only after the sequence repeats.
Implement mutually exclusive direction control with safe stop and fault behavior.
Scale process feedback and prevent alarm chatter around operating thresholds.
Training outcomes
Assignments can grade normal operation, unsafe demands, boundary conditions and recovery behavior against the same machine model.
Free planning resource · PDF + editable CSV
Download a practical controls rubric, sample candidate report, role-based skills matrix and an implementation plan you can adapt before running a pilot.
Scope, stated plainly
This assesses PLC and automation-control competence only. It is not a complete maintenance-technician selection instrument and does not assess mechanical fitting, hydraulics, pneumatics, welding, refrigeration, site permits or hands-on electrical safety. Employment decisions should combine it with structured interviews and supervised practical checks.
Related training solutions
Close the control-skill gaps exposed by the assessment.
Explore solutionPrepare candidates for mixed knowledge and hands-on interview rounds.
Explore solutionUse the 46-scenario certification-preparation pathway.
Explore solutionPilot with your standards
Use the existing labs immediately, then map assignments and pass criteria to the equipment, failure modes and competencies your team owns.
Job-readiness and assessment field guide
Direct answer
The assessor can connect each score to a bounded task, observed action, measurement, explanation and recovery result.
Written for employers, instructors and technician candidates evaluating PLC, electrical, motor, sensor, instrumentation and troubleshooting evidence.

Job tasks, prerequisite safety, equipment boundaries, PLC logic, drawings, meters, motors, sensors, instruments, faults, rubric, time, accommodations and evidence retention.
Task brief through safe setup, observation, measurement, diagnosis, corrective decision, restored behavior and assessor record.
One normal inspection and one bounded fault isolated with an explained proving action.
Ambiguous symptom, misleading indication, intermittent state, time pressure, changed case, inaccessible setup and incomplete recovery.
A knowledge, procedure, observation, measurement, interpretation, safety, communication or transfer gap.
Results reviewed with supervised physical demonstration, job context and documented development actions.
Use representative tasks covering safe preparation, drawings, PLC and I/O reasoning, electrical measurements, motors, sensors, fault isolation, recovery and explanation.
It can demonstrate bounded knowledge and diagnostic reasoning, but hands-on authorization and physical competence need separate supervised evidence.