TON On-Delay Timer (ST) - Schneider-ecostruxure-unitypro Typing CST Test
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TON On-Delay Timer (ST) — Schneider-ecostruxure-unitypro Code
Standard TON timer usage in Unity Pro ST.
TON_1(IN := %I0.1, PT := T#5s);
IF TON_1.Q THEN
%Q0.1 := TRUE;
END_IF;Schneider-ecostruxure-unitypro Language Guide
Schneider EcoStruxure Control Expert (formerly Unity Pro) is an IEC 61131-3 compliant PLC programming environment used for developing, configuring, testing, and maintaining Schneider Electric Modicon PLCs across industrial automation systems.
Primary Use Cases
- ▸Programming Modicon M340, M580, M221, Premium, and Quantum PLCs
- ▸Industrial automation logic development
- ▸SCADA integration via Modbus, Ethernet/IP, and Schneider protocols
- ▸Safety-critical control sequences
- ▸Batch process automation
Notable Features
- ▸IEC 61131-3 language support
- ▸Offline and online simulation
- ▸Powerful debugging and monitoring
- ▸Unity Library Manager for reusable components
- ▸Integrated communication configuration (Modbus, Ethernet, CANOpen)
Origin & Creator
Developed by Schneider Electric as part of the EcoStruxure automation suite to unify and modernize programming for Modicon PLCs.
Industrial Note
Widely used in energy, water treatment, heavy manufacturing, smart infrastructure, and SCADA-driven industries requiring reliable Modicon PLC workflows.