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Safety Event 2011 presentatie Nick de With. - Engineers Online

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Basisprincipes veiligheids-PLC<br />

Kanaal 0<br />

Ingang<br />

Adr.<br />

E x.00<br />

12V<br />

I 00<br />

0 V<br />

24 V<br />

0 V<br />

Basisprincipes Fail-safe PLC:<br />

1. Redundantie HW + SW<br />

2. Zelftests CPU + HW<br />

3. Redundantie I/O’s +diagnose<br />

4. Scheiding standaard en<br />

veiligheidsprogramma<br />

5. Nu op MRL 2006/42/EG Bijlage IV!<br />

Kanaal 31<br />

Ingang<br />

Adr.<br />

E x.31<br />

* wordt door<br />

BS<br />

aangestuurd<br />

12V<br />

* alleen biji PSS DI 2 / PSS DIF 2<br />

I 31<br />

0 V<br />

0 V<br />

Goedkeuring door NOBO van ALLE<br />

“logische eenhe<strong>de</strong>n voor<br />

VHF’s”<br />

is verplicht bij levering als veiligheidscomponent<br />

3.Redundantie I/O + diagnose<br />

Ingangskring na optocoupler<br />

redundant<br />

Test van optocoupler door<br />

signaalinjectie<br />

powered by www.fusacon.nl pagina 35

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