EVS-EN 61131-1:2002

The International Standard IEC 1131 applies to programmable controllers and their associated peripherals such as programming and debugging tools (PADTs), test equipment (TE) and man-machnie interfaces (MMIs), etc. Equipment covering in this standard is intended for use in overvoltage category II (see IEC 364-4-443), in low voltage installations, where the rated mains supply voltage does not exceed 1000 V a.c. (50/60 Hz), or 1500 V d.c., for the control and command of machines and industrial processes.