Immuned device/ or Process | Reduction in interruption | Immuned device/ or Process | Reduction in interruption | |||||
fr(#) | fr(%) | fr(#) | fr(%) | |||||
Nothing | 0.00 | 0.0 | Group of processes | Both P1 and P2 | 3.65 | 62.6 | (A1) | |
Equipment level | Only contactor | 0.00 | 0.0 | Both P1 and P3 | 2.53 | 43.4 | ||
Only ASD | 2.25 | 38.6 | Both P1 and P4 | 4.15 | 71.2 | (A2) | ||
Only PC1 or PC2 | 1.40 | 24.0 | Both P2 and P3 | 1.68 | 28.8 | |||
Only PLC | 0.28 | 4.8 | Both P2 and P4 | 3.30 | 56.6 | (A3) | ||
Only SEMI F47 device | 1.90 | 32.6 | Both P3 and P4 | 2.18 | 37.4 | |||
Process level | Only P1 | 2.25 | 38.6 | P1, P2 and P3 | 3.93 | 67.4 | (B1) | |
Only P2 | 1.40 | 24.0 | P1, P2 and P4 | 5.55 | 95.2 | (B2) | ||
Only P3 | 0.28 | 4.8 | P2, P3 and P4 | 3.58 | 61.4 | (B3) | ||
Only P4 | 1.90 | 32.6 | Entire plant | All processes | 5.83 | 100 | (C) |