1756-RM001B-EN-P, Using ControlLogix in SIL2 ... - Tuv-fs.com
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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SIL Policy 1-13Table 1.5 shows an example of a PFD calculation for a safety loop<strong>in</strong>volv<strong>in</strong>g two DC <strong>in</strong>put modules used <strong>in</strong> a 1oo2 configuration and aDC output module.Table 1.5Catalog Number: Description: MTBF: Calculated PFD:<strong>1756</strong>-Axx <strong>ControlLogix</strong> Chassis 40,143,900 5.58E-06(average)<strong>1756</strong>-L55M16 <strong>ControlLogix</strong> 5555 2,855,348 7.84E-05Controller<strong>1756</strong>-OB16D DC Output 4,520,534 4.96E-05<strong>1756</strong>-IB16D DC Diagnostic Input 7,386,774 2.40E-06Total PFD calculation for a safety loop consist<strong>in</strong>g of these products: 1.36E-04This example is shown graphically <strong>in</strong> the first loop shown <strong>in</strong>Figure 1.3 on page 1-14.Publication <strong>1756</strong>-<strong>RM001B</strong>-<strong>EN</strong>-P - October 2003
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