ISA CAP study plan

Diagram the four elements of a closed loop (sensor, transmitter, controller, final element) and trace signal flow for at least six loops you sketch from scratch

Predict the effect of proportional, integral, and derivative action on offset, rise time, overshoot, and stability using hand-worked step-response examples

Convert between engineering units, percent of span, and 4-20 mA for pressure, differential-pressure flow, and level measurements, including square-root extraction

Decode ISA 5.1 tag letters, instrument bubbles, and line symbols well enough to write a one-line description of any instrument on a P&ID you have not seen before

Tune a simulated flow loop and a simulated temperature loop by both Ziegler-Nichols and lambda tuning, and record why the resulting responses differ

Select a control valve for a given service by calculating Cv, checking cavitation and flashing limits, and justifying the fail-safe position and actuator type

Compare orifice, Coriolis, magnetic, vortex, and ultrasonic flowmeters on accuracy, turndown, fluid constraints, and installed cost, then defend a choice for three different fluids

Explain how measurement dynamics, dead time, and valve stiction degrade loop performance, and propose a diagnostic step for each

Map the ISA/IEC 61511 safety lifecycle phases end to end and identify which documents are produced in each phase

Distinguish BPCS, alarm, and SIS layers and explain why independence and diversity matter between them

Perform a LOPA on a simple overpressure scenario: define the consequence, identify initiating causes, list independent protection layers with their PFDs, and derive the required risk reduction

Calculate PFDavg for 1oo1, 1oo2, and 2oo3 voting architectures using simplified formulas, and explain how proof test interval and test coverage change the result

Assign a SIL target to a safety instrumented function and verify it against achieved PFDavg and architectural constraints

Write a safety requirements specification for one interlock that states the trip point, response time, sensor and final element, reset philosophy, and proof test method

Describe bypass and override management, spurious trip rate trade-offs, and the documentation needed for each

Review and correct your week 3 SIL worksheet against the standard's requirements, documenting at least three errors you found and how you fixed them

Sequence a functional safety assessment plan: who participates, what evidence is reviewed, and at which lifecycle gates it occurs

Decompose a controls upgrade project into a work breakdown structure with at least three levels and assign a responsible role to each work package

Estimate effort and duration for each WBS package using at least two estimating methods and reconcile the difference

Draft a project scope statement that lists explicit exclusions and acceptance criteria

Build a critical path network for the WBS from week 4, compute early and late dates, and identify the critical path and total float on two near-critical branches

Construct a risk register of ten scored risks with owners, triggers, and specific mitigation actions, and mark which are schedule-critical

Differentiate FAT, SAT, and site acceptance activities by writing the acceptance criteria and witness list for each stage of the same system

Design a change control process that captures scope, schedule, cost, and safety impact for a mid-project modification

Draft a commissioning and startup checklist that sequences loop checks, interlock testing, and turnover documentation

Close out project documentation by producing a turnover package index: as-builts, loop folders, test records, and training materials

Explain the OSI model layers well enough to place HART, Foundation Fieldbus, PROFIBUS, Modbus TCP, and EtherNet/IP at their correct layers

Compare star, ring, and mesh topologies plus redundant and fault-tolerant architectures on availability, cost, and troubleshooting effort

Calculate the effect of segment loading, cable length, and power budget on a fieldbus segment, and state when it fails

Select a network topology for a given plant area and justify the choice against the alternatives

Segment an automation system into ISA/IEC 62443 zones and conduits, and justify each boundary with the assets it protects

Apply the defense-in-depth layers to a remote-access scenario and specify at least five concrete controls with the risk each addresses

Explain OPC UA versus classic OPC and describe how a historian should be architected to preserve data integrity and time synchronization

Design a data flow from field device to enterprise dashboard, naming the protocol, owner, and update rate at every hop

Evaluate wireless and IIoT options against wired alternatives on latency, security, and lifecycle cost for two use cases

Complete at least two timed mixed-domain practice sets and record your score by domain

Re-teach your three weakest sub-topics from memory on a blank page, then check against your notes and correct the gaps

Consolidate every formula you used (signal conversion, Cv, PFDavg, availability, float, segment loading) onto a single one-page sheet

Rehearse written justifications for scenario-style questions using a fixed structure: state the answer, cite the standard or principle, give the trade-off

Run a final review of missed questions and confirm each weak area now scores above 80%