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1756-RM001B-EN-P, Using ControlLogix in SIL2 ... - Tuv-fs.com

1756-RM001B-EN-P, Using ControlLogix in SIL2 ... - Tuv-fs.com

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Appendix DSpurious Failure EstimatesTable D.1 lists the Spurious failure estimates for the <strong>ControlLogix</strong>products <strong>in</strong>cluded <strong>in</strong> this manual. These estimates are based on fieldreturns.Table D.1Catalog Number: Description: MTBF (Spurious): (1) λ (Spurious): (2)<strong>1756</strong>-Ax <strong>ControlLogix</strong> Chassis 1,689,662(Average) 5.92E-07<strong>1756</strong>-CNB ControlNet Bridge 2,335,907 4.28E-07<strong>1756</strong>-CNBR Redundant ControlNet Bridge 3,360,686 2.98E-07<strong>1756</strong>-<strong>EN</strong>BT EtherNet Bridge 167,440 4.28E-07<strong>1756</strong>-IA16I Isolated AC Input 11,623,040 8.60E-08<strong>1756</strong>-IA8D AC Diagnostic Input 4,018,560 2.49E-07<strong>1756</strong>-IB16D DC Diagnostic Input 12,024,480 8.32E-08<strong>1756</strong>-IB16I DC Isolated Input 20,454,720 4.89E-08<strong>1756</strong>-IF8 Analog Input 3,788,373 2.64E-07<strong>1756</strong>-IR6I RTD Input 1,294,453 7.73E-07<strong>1756</strong>-IT6I Thermocouple Input 805,376 1.24E-06<strong>1756</strong>-L55M16 L55 Controller w 7.5Mb Memory 447,497 2.23E-06<strong>1756</strong>-OA16I AC Isolated Input 4,440,800 2.25E-07<strong>1756</strong>-OA8D AC Diagnostic Input 3,956,160 2.53E-07<strong>1756</strong>-OB16D DC Diagnostic Output 7,317,440 1.37E-07<strong>1756</strong>-OB16I DC Isolated Output 15,329,600 6.52E-08<strong>1756</strong>-OB8EI DC Fused Output 1,356,160 7.37E-07<strong>1756</strong>-OF8 Analog Output 2,542,138 3.93E-07<strong>1756</strong>-OX8I Contact Output 7,096,960 1.41E-07<strong>1756</strong>-PA75 AC Power Supply 2,020,247 4.95E-07<strong>1756</strong>-PA75R AC Redundant PS 511,680 1.95E-06<strong>1756</strong>-PB75 DC Power Supply 2,275,520 4.39E-07<strong>1756</strong>-PB75R DC Redundant PS NA<strong>1756</strong>-PSCA Power Sup Chassis Adapter 3,132,480 3.19E-07(1) MTTF (Spurious) = (Installed base one year ago X 4160) / Number of "No Problem Found" failures <strong>in</strong> the past 12 months (<strong>in</strong> hours)NOTE: If no "No Problem Found" failures are recorded, one (1) is assumed.(2)λ (Spurious) = 1 / MTTF (Spurious)NA - Sufficient field data is not available1 Publication <strong>1756</strong>-<strong>RM001B</strong>-<strong>EN</strong>-P - October 2003

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