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2. CODESYS - Wikipedia

   en.wikipedia.org/wiki/CODESYS

   Jürgen Kaftan: "Practical Examples with AC500 from ABB: 45 Exercises and Solution programmed with CoDeSys Software". IKH Didactic Systems ISBN 978-3943211061; Tom Mejer Antonsen: "PLC Controls with Structured Text (ST): IEC 61131-3 and best practice ST programming", ISBN 978-87-4301-855-1 (further languages available)

3. Programmable logic controller - Wikipedia

   en.wikipedia.org/wiki/Programmable_logic_controller

   A programmable logic controller (PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, machines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis.

4. List of automation protocols - Wikipedia

   en.wikipedia.org/wiki/List_of_automation_protocols

   DF-1 - used by Allen-Bradley ControlLogix, CompactLogix, PLC-5, SLC-500, and MicroLogix class devices; DNP3 - a protocol used to communicate by industrial control and utility SCADA systems; DirectNet – Koyo / Automation Direct proprietary, yet documented PLC interface; EtherCAT; Ethernet Global Data (EGD) – GE Fanuc PLCs (see also SRTP)

5. Ladder logic - Wikipedia

   en.wikipedia.org/wiki/Ladder_logic

   Ladder logic has evolved into a programming language that represents a program by a graphical diagram based on the circuit diagrams of relay logic hardware. Ladder logic is used to develop software for programmable logic controllers (PLCs) used in industrial control applications.

6. HostLink Protocol - Wikipedia

   en.wikipedia.org/wiki/HostLink_Protocol

   HostLink [1] is communication protocol for use with or between PLC's made by Omron.It is an ASCII-based protocol generally used for communication over RS-232 or RS-422.The protocol enables communication between various pieces of equipment in an industrial environment for programming or controlling those pieces of equipment.

7. Sequential function chart - Wikipedia

   en.wikipedia.org/wiki/Sequential_function_chart

   Sequential function chart (SFC) is a visual programming language used for programmable logic controllers (PLCs). It is one of the five languages defined by IEC 61131-3 standard. The SFC standard is defined as Preparation of function charts for control systems , and was based on GRAFCET [ fr ] (itself based on binary Petri nets [ 1 ] [ 2 ] ).