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UL 61131-2

UL Standard for Safety Programmable Controllers – Part 2: Equipment Requirements and Tests

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Organization: UL
Publication Date: 5 June 2008
Status: inactive
Page Count: 196
scope:

Scope and object

This Part of IEC 61131 specifies requirements and related tests for programmable controllers (PLC) and their associated peripherals (for example, programming and debugging tools (PADTs), human-machine interfaces (HMIs), etc.) which have as their intended use the control and command of machines and industrial processes.

PLCs and their associated peripherals are intended to be used in an industrial environment and may be provided as open or enclosed equipment. If a PLC or its associated peripherals are intended for use in other environments, then the specific requirements, standards and installation practices for those other environments must be additionally applied to the PLC and its associated peripherals.

This standard also applies to any products performing the function of PLCs and/or their associated peripherals.

Equipment covered in this standard is intended for use in overvoltage category II (IEC 60664-1) in low-voltage installations, where the rated mains supply voltage does not exceed a.c. 1 000 V r.m.s. (50/60 Hz), or d.c. 1 500 V. (If PLCs or their associated peripherals are applied in overvoltage category III installations, then additional analysis will be required to determine the suitability of the equipment for those applications.)

Document History

June 5, 2008
UL Standard for Safety Programmable Controllers – Part 2: Equipment Requirements and Tests
Scope and object This Part of IEC 61131 specifies requirements and related tests for programmable controllers (PLC) and their associated peripherals (for example, programming and debugging tools...
UL 61131-2
June 5, 2008
UL Standard for Safety Programmable Controllers – Part 2: Equipment Requirements and Tests
Scope and object This Part of IEC 61131 specifies requirements and related tests for programmable controllers (PLC) and their associated peripherals (for example, programming and debugging tools...
June 5, 2008
UL Standard for Safety Programmable Controllers – Part 2: Equipment Requirements and Tests
Scope and object This Part of IEC 61131 specifies requirements and related tests for programmable controllers (PLC) and their associated peripherals (for example, programming and debugging tools...

References

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