... communication aspects of a programmable controller. It serves the programme and data exchange between the programmable controllerand external devices or other programmable controllers or any devices ... theselection and application of programmable controllers and their associated peripherals;Part 2 specifies equipment requirements and related tests for programmable controllers (PLC)and their associated ... ``,`,`,,,``````,,``,,``,,,,`,-`-`,,`,,`,`,,` – 6 – 61131-1 IEC:2003(E) PROGRAMMABLE CONTROLLERS –Part 1: General information1 ScopeThis Part of IEC 61131 applies to programmable controllers (PLC) and their associated peri-pherals...