IEC/TR 61131-4 Ed. 2.0现行
Programmable controllers Part 4: User guidelines
出版：International Electrotechnical Committee
专家解读视频
introduces the end-users of Programmable Controller (PLC) to the IEC 61131 series, and to assist the end-users in their selection and specification of their PLC equipment according to the IEC 61131 series. This user guideline has as its main audience PLC end-users.
AS IEC 61131.4-2004 - Identical
NEN NPR IEC/TR 61131-4:2004 - Identical
NEMA IA2.4:2005 - Equivalent
JIS TR B0004:1998 - Identical
PD IEC TR 61131-4:2004 - Identical
AS IEC 61131.4:2014 - Identical
