Glossary
SIPART PS2 with PROFIBUS communication
Operating Instructions, 09/2007, A5E00127926-07
279
Device category 3
Category 3 devices must be procured such that they ensure a normal degree of safety.
Devices in this category must ensure the required degree of safety in case of frequent faults
or the ones that are normally expected, e.g. defects in the device, and prevent the ignition
sources. Devices in this category are suitable for use in zone 3.
Digital
Representation of a variable in the form of characters or numbers. The functional course of
an originally changeable analog variable is simulated in predefined stages. Predefined
values are assigned to these stages. Opposite to "analog".
EEPROM
EEPROM (Electrically Erasable Programmable Read-Only Memory; literally: elektrisch
löschbarer, programmierbarer Nur-Lese-Speicher in German) is a non-volatile electronic
memory. EEPROMs are often used when individual data bytes change over long time
periods and need to be saved in a power fail-safe manner. e.g. configuration data or runtime
meters.
EEx ia/ib protection
Types of protection. If potentially explosive mixtures enter the enclosure of a resource, it
should not lead to ignition. Demarcation of sparks and increased temperatures.
●
ia: intrinsic safety, as per special requirements compliant with EN 50020
●
ib: intrinsic safety, as per EN 50020
EEx-d protection
Type of protection for versions with flameproof enclosures. When the potentially explosive
mixtures enter the enclosure of a resource and an ignition source exists in the enclosure.
The transfer of the explosion inside the enclosure to the surrounding space must be ruled
out.
●
d: flameproof enclosure
Electromagnetic compatibility
Definition as per the EMC law: EMC is the capability of a device to work satisfactorily in the
electromagnetic environment without causing electromagnetic interferences that are
unacceptable for other devices present in this environment.
Factory Mutual
Industrial property insurer and certification agency in the USA. FM Global is one of the
largest industrial insurers in the world who are specialized in the field of technically-
supported property insurance. It offers services like product research, testing and
certification.
Содержание SIPART PS2 PA 6DR55 Series
Страница 2: ......
Страница 270: ...Appendix A 3 Test report SIPART PS2 with PROFIBUS communication 270 Operating Instructions 09 2007 A5E00127926 07 ...
Страница 271: ...Appendix A 3 Test report SIPART PS2 with PROFIBUS communication Operating Instructions 09 2007 A5E00127926 07 271 ...
Страница 272: ...Appendix A 3 Test report SIPART PS2 with PROFIBUS communication 272 Operating Instructions 09 2007 A5E00127926 07 ...
Страница 286: ...Glossary SIPART PS2 with PROFIBUS communication 286 Operating Instructions 09 2007 A5E00127926 07 ...
Страница 290: ...Index SIPART PS2 with PROFIBUS communication 290 Operating Instructions 09 2007 A5E00127926 07 ...
Страница 291: ......