PLC Programming: Learn PLC Programming with TIA Portal

Identify nano to large plc sizes and select the right device based on your project’s io needs for machine level control.

Discover the advantages of PLCs, including solid-state reliability, fewer wires, easier troubleshooting, and easy program-based logic changes that reduce downtime and cabinet size.

Explore PLC memory types, including RAM, ROM (read-only memory), and erasable EEPROM with flash EEPROM, and see how RAM speeds processing while ROM holds data.

Learn how PLC load memory stores the program, acting as the PLC's internal hard drive, with internal and external load memory in standalone and modular PLCs.

Master how PLC work memory executes the program and functions as the PLC's RAM, imaging inputs and outputs each cycle time (PII) to run the code.

Understand how PLC system memory stores addresses that map inputs to outputs, with load memory holding the program and work memory executing it, including I 0.0 and Q 0.0.

Learn how PLC retentive memory preserves timer and counter values across power outages, allowing you to select which timers and counters to store to avoid re-entering data.

Understand why digital I/O modules are required in PLC: they convert sensor electrical signals to logic level for the CPU and then convert logic back to electrical signals for actuators.

Examine the inside of digital input modules for PLCs, covering DC and AC types, voltage ratings, noise debouncing, threshold detection, opto-isolation, and the path to the processor via the backplane.

Discover digital output modules, including internal logic, opto isolation, and how the CPU data bus drives LEDs and transistors to switch AC or DC loads.

Explore discrete field input devices feeding the PLC’s digital input module—push buttons, limit switches, proximity sensors, and emergency switches—and output devices like brakes, valves, and relays for crane applications.

Understand how analog input and output modules translate 4–20 mA signals for furnace temperature control. See why digital input modules handle on/off signals, while analog modules drive valves.

Explore analog field devices, including flow meters, radar level transmitters, RTDs and thermocouples sending 4–20 mA or 0–10 V to PLCs, plus analog output devices like VFDs and control valves.

Learn how and, or, and xor instructions control PLC outputs in ladder logic, using truth tables and series or parallel wiring to visualize power flow in TIA Portal.

Learn to implement and, or, and xor gate logic in Siemens TIA Portal v13 using switches S1 and S2 with light L1, including normally closed settings and staircase xor behavior.

Explain set and reset instructions in ladder logic, showing how I 1.2 and I 1.3 set Q 8.1 and how I 1.4 resets it for traffic signal use.

Explore the set-reset coil instruction in Siemens TIA Portal with an on-off light example using M 0.4, M 0.5, and Q 0.2, illustrating reset priority and 0→1 transitions.

Explore set-reset and reset-set flip-flops in PLCs using TIA Portal, showing how inputs control Q9.3 and how priority differs between the two instructions.

Demonstrates set and reset operations using SR flip-flop and reset set flip flop in TIA Portal, showing how outputs latch after input release and priority when both buttons are pressed.

Demonstrate the not instruction in ladder logic by inverting the and of I 1.0 and I 1.1 to control Q 4.0, shown through several input change scenarios.

Explore how the not instruction in Siemens TIA Portal inverts zero or one results from S5 and S6 inputs to drive Q0.5 and light L6.

Master edge detection instructions in TIA Portal PLC programming, covering positive and negative edge detection, edge evaluation of a binary tag, and pulse-output and RL-based logic.

Demonstrates positive and negative edge instructions in TIA Portal, using set/reset and pulse output coils, with inputs and memory addresses, and monitoring outputs online.

Learn how pulse timer instructions control outputs using input signals, preset times in ms, and elapsed time in TIA Portal, with reset options and multiple operating instances.

Demonstrate how a pulse timer (TP) in TIA Portal counts seconds from input to output, with a 30-second preset, reset via RT, and monitoring of elapsed time and forced inputs.

Master the on delay timer (TON) in TIA Portal to switch on an output after a preset time, with input changes, resets, and ET and Q status.

Use an on delay timer in TIA Portal to start the oil pump first, then the main and auxiliary motors, controlled by start and stop push buttons.

learn how the off delay timer (toff) keeps the output on for a preset time after the input goes low, using TX, ET, and Q signals in TIA Portal.

Showcases off delay timer usage in Siemens TIA Portal to control a tap water valve via a photosensor; after 10 seconds of no hand presence, water shuts off.

Explore the retentive on-delay timer (TONR) in TIA Portal: an accumulator that retains its value, counts toward a 30s preset, turns on the output, and resets via the reset input.

Explore the up counter instruction in PLC programming, including inputs, reset priority, CV and PV, and when Q8.3 energizes as the counter value equals or exceeds the preset value.

Explore the up counter instruction in TIA Portal: a sensor counts ten packages on a conveyor, triggering a robotic arm and resetting the counter and Q 2.4 when S2 signals.

Explore the counter down instruction cd, loading a preset value pv with ld, decrementing on the count down input, and energizing q at 8.3 when zero, with unloading boxes.

Learn the counter down operation in Siemens TIA Portal by loading a preset value, decrementing with the counter down instruction, and monitoring zero output as the value reaches zero.

Understand the up and down counter instruction, including load with a preset value, reset, and the up (I0.4) and down (I0.5) inputs that update CV and the Q8.3 output.

demonstrates creating an up and down counter in TIA Portal with count up, count down, load and reset inputs using a preset value of ten; shows reset takes priority.

Learn how comparison instructions in TIA Portal evaluate two values: equal to, not equal, less than, greater than, and their variants to switch outputs like Q0.0 based on a counter.

Learn how to use the jump and jump not instructions in TIA Portal to jump to a labeled network when i0.0 and i0.1 are on, skipping subsequent networks.

Learn how jump and jump not instructions control program flow in tia portal, using the instruction tab, labeled x, y, z, and a force table to skip or execute networks.

Explore using add, mul, sub, and div blocks in the basic instruction tab of TIA Portal to perform arithmetic, noting add/mul accept multiple inputs while sub/div are two-input.

Explore the calculate instruction in TIA Portal to solve complex equations, like motor power, using inputs and outputs of the same data type and separate constant inputs.

Explore how the calculate instruction in TIA portal uses data type real to compute motor power from voltage, current, power factor, and root three value, divided by 1000.

Learn how the round instruction in TIA Portal converts data types and rounds real numbers to the nearest even integer, with examples like 10.5 to 10 and 11.5 to 12.

Demonstrates how to use the round instruction in the basic instruction conversion operation to convert data types and round values, showing an example from 9.9608 to 10.0 in online mode.

Convert analog inputs to engineering units with norm x and scale x, mapping 0–10 volt signals to liters and showing that 5 volts equal 150 liters in the example.

Showcases norm x and scale x in Siemens tia portal by converting an analog input from a 4 to 20 milliamps transmitter to a Celsius value in -30 to 70.