PLC programming: Timers and Counters Programming

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Presentation transcript:

PLC programming: Timers and Counters Programming Juan David Bastidas Rodríguez Escuela de Ingenierías Eléctrica, Electrónica y de Telecomunicaciones Universidad Industrial de Santander

Timers and Counters Programming Objectives Understand timer types, operation, and implementation. Understand counter types, operation, and implementation. Understand core and special timing instructions. Use timers and counters in industrial process control.

Timers fundamentals

ON-DELAY Timers (TONs)

ON-DELAY Timers (TONs) Example 1:

ON-DELAY Timers (TONs) Example 2:

OFF-DELAY Timers (TOFs)

OFF-DELAY Timers (TOFs) Example 1:

OFF-DELAY Timers (TOFs) Example 2:

Retentive/Time-Accumulator Timers (TONRs)

Retentive/Time-Accumulator Timers (TONRs) Example 1:

Retentive/Time-Accumulator Timers (TONRs) Problem example 1:

Retentive/Time-Accumulator Timers (TONRs) Problem example 1:

Retentive/Time-Accumulator Timers (TONRs) Problem example 1:

Retentive/Time-Accumulator Timers (TONRs) Problem example 1:

Retentive/Time-Accumulator Timers (TONRs) Problem example 2:

Retentive/Time-Accumulator Timers (TONRs) Problem example 3:

Retentive/Time-Accumulator Timers (TONRs) Problem example 3:

Counters Fundamentals

Count Up Counters (CTU)

Count Up Counters (CTU) Example 1:

Count Down Counters (CTD)

Count Down Counters (CTD) Example 1:

Count Up and Down Counters (CTUD)

Count Up and Down Counters (CTUD) Example 1:

Pulse Generation/Pulse Timer (TP)

Pulse Generation/Pulse Timer (TP) Example 1:

Homework Simulate at least 3 problems that include timers and counters.