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About This Item
Full Description
a) data integrity before data-link layer error checking;
b) interoperability between devices at the physical layer. The fieldbus physical layer conforms to layer 1 of the OSI 7-layer model as defined by ISO 7498 with the exception that, for some types, frame delimiters are in the physical layer while for other types they are in the data-link layer. This fifth edition cancels and replaces the fourth edition published in 2007 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- for Type 18, Table 157 reduced tolerance to 5 %;
- for Type 18, in 32.5.3.1 removed minimum cable length;
- for Type 18, in 32.5.4. and R.2.2 cable reference removed;
- for Type 18, Table 160 and 161 terminating resistor value changed to 680 Ω. This bilingual version published in 2011-12, corresponds to the English version published in 2010-07.
Document History
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IEC 61158-2 Ed. 7.0 b:2023
Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition- Most Recent
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IEC 61158-2 Ed. 6.0 b:2014
Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition- Historical Version
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IEC 61158-2 Ed. 5.0 b:2010
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Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition- Historical Version
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IEC 61158-2 Ed. 5.0 en:2010
Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition- Historical Version
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IEC 61158-2 Ed. 4.0 en:2007
Industrial communication networks - Fieldbus specifications - Part 2: Physical layer specification and service definition- Historical Version
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IEC 61158-2 Ed. 3.0 en:2003
Digital data communications for measurement and control - Fieldbus for use in industrial control systems - Part 2: Physical layer specification and service definition- Historical Version