SCL · STRUCTURED TEXT · TIA PORTAL · IEC 61131-3 · CLASSROOM & LIVE ONLINE
A project-driven SCL course for engineers who have outgrown ladder logic. Start with SCL syntax, data types, decisions, loops, timers and counters, then build reusable logic with arrays, UDTs, analog scaling, motor interlocks and CASE state machines. Move into the project method used on real machines — Excel I/O lists, generated tags and UDTs, and standard input, output, network, alarm and tower light mapping blocks — and finish with complete conveyor and automotive line projects.
Classroom day batches · Online 7:30 PM–9:00 PM · Sunday 11:00 AM–5:00 PM
See the software, controllers and practical engineering topics used at each stage of the SCL programming path. Select a module to view exactly what you will work with.
Training progression: Module 01 teaches the SCL language itself, Module 02 turns it into reusable machine logic with structured data and state machines, Module 03 adds the project method — I/O lists, generated tags and standard mapping blocks — and Module 04 applies everything to complete conveyor and automotive line projects.
View Detailed SCL Training Contents →The SCL course is organised as four practical modules covering 18 Structured Text training topics. Every topic below is a written guide you can open before or after the session — from SCL syntax, timers and counters through UDTs, scaling, interlocks and state machines, to the Excel I/O list and mapping block method and two complete machine projects.
Learn the language itself: syntax, data types, decisions, loops and the SCL forms of timers and counters, plus a clear rule for when SCL is the right choice and when ladder still wins.
The written reference for the whole course: syntax, declarations, statements and worked examples you can keep open beside TIA Portal.
View training topic →02Where SCL saves hours — loops, calculations, arrays and sequences — and where ladder remains the better choice for maintenance teams.
View training topic →03The same control task written both ways, so the difference in effort, readability and troubleshooting is visible rather than theoretical.
View training topic →04Declare and call timer and counter instances correctly in SCL, handle instance data blocks and avoid the retrigger mistakes beginners make.
View training topic →Build the reusable logic that real machines need: structured data with arrays, structs and UDTs, correct analog scaling, motor control with interlocks and alarms, and step sequences written as state machines.
Design UDTs and arrays that make a program scale from one motor to twenty without copying logic, and keep the HMI interface clean.
View training topic →02Convert raw analog values into engineering units in a few readable lines, with limit handling and out-of-range behaviour.
View training topic →03Write a reusable motor function block with start, stop, permissives, interlock chain, run feedback and alarm bits.
View training topic →04Use CASE-based state machines for machine steps, with step timers, transitions and a step number the HMI can display.
View training topic →Work the way project teams work: read the electrical drawings, build the I/O list in Excel, create tags, UDTs and data blocks from it, then map inputs, outputs, networks, alarms and tower lights with standard SCL blocks.
Take panel drawings to a structured I/O list with addresses, descriptions and signal types — the document every later step depends on.
View training topic →02Import the I/O list into TIA Portal, generate tag tables and build the UDTs and data blocks that the mapping blocks will use.
View training topic →03Move every physical input into a structured data block in one SCL block, so the control logic never touches raw addresses.
View training topic →04Write the reverse path: control results out to physical outputs in one place, with simulation and forcing handled cleanly.
View training topic →05Map data exchanged with drives, remote I/O and other controllers into structured blocks instead of scattered addresses.
View training topic →06Collect fault bits into alarm words in a defined order so the HMI or SCADA message list stays consistent across projects.
View training topic →07Drive the stack light from machine state: running, stopped, fault and warning, with flashing patterns and horn handling.
View training topic →Put the whole method to work on full projects: a conveyor control system, then automotive line logic written for both auto and manual mode with proper mode gating and fault handling.
Build a full conveyor project end to end: I/O structure, motor blocks, interlocks, sequence, alarms and HMI interface data.
View training topic →02Automatic cycle logic for an automotive conveyor: step sequence, station handshakes, timing and fault-driven stops.
View training topic →03Manual and jog operation with command gating, safety interlocks that stay active, and a clean switch between modes.
View training topic →SCL (Structured Control Language) is Siemens' implementation of Structured Text, the IEC 61131-3 high-level PLC language. What you learn here — declarations, IF and CASE decisions, loops, function blocks and structured data — transfers directly to Structured Text on other IEC-compliant platforms.
TIA Portal with S7-1200 and S7-1500 controllers, using the SCL block editor, S7-PLCSIM for simulation, watch and force tables for testing, and cross-reference for checking a growing project.
Basic PLC knowledge — I/O, tags and simple ladder logic — makes the start easier, but the course begins with SCL syntax and data types, so an engineer moving from ladder can follow it from the first session.
SCL is far stronger for calculations, loops, array and recipe handling, state machines and repeated equipment logic. Ladder remains easier for simple interlocks and for maintenance teams who troubleshoot on the panel, and the course covers this decision directly rather than treating SCL as always better.
Standard mapping is a full module. Inputs, outputs, network data, alarm words and tower light states are each handled by a dedicated SCL block, which is how machine projects stay consistent and readable across a series of machines.
Yes. The course starts from electrical drawings, builds a structured I/O list in Excel, and uses it to create PLC tag tables, UDTs and data blocks in TIA Portal before any control logic is written.
Yes. A full conveyor control project is built end to end, followed by automotive conveyor logic written for both automatic and manual mode with mode gating, station handshakes and fault handling.
Both. Classroom sessions run in the day batches and live online sessions run from 7:30 PM to 9:00 PM on weekdays, with a Sunday batch from 11:00 AM to 5:00 PM for working engineers.
Yes. The SCL practical manual covers syntax, declarations, statements and worked examples, and every topic on this page is a written guide you can open before or after the live session.
Send your requirement for SCL / Structured Text training. Mention your TIA Portal version, the controller you work on, whether you want classroom or live online sessions, and the kind of machine you program, so the project work matches your application. Online batch runs 7:30 PM to 9:00 PM on weekdays and 11:00 AM to 5:00 PM on Sunday.
Explore the four SCL modules, the TIA Portal setup used in the sessions, the machine projects built during the course and classroom or online batch options.
Content reviewed: 18 September 2026