ABB D674A905U01 Analog module industrial system controller

Description

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The PM864/PM865 processor unit, in single configuration, has performance data
which theoretically peaks at twice the performance compared to the PM860. The
useful sustained performance improvement is, however, a bit lower and somewhat
dependent on the actual application program but can be expected to be 10 to 50%
compared to PM860. In redundant configuration the execution performance is
somewhat lower than in single configuration.
Performance of the PM858 processor unit is 0.5 times the performance of PM862.
Performance of the PM862 processor unit is 0.7 times the performance of PM864.
Performance of the PM866 processor unit is 1.4 times the performance of PM864.
Performance of the PM867 processor unit is 2 times the performance of PM865
High Integrity.
Performance Data for PM891
The PM891 processor unit has performance data approximately three times the
performance of PM864. In redundant configuration too, the execution performance
is approximately three times the performance of PM864.
Switch over time from Primary CPU to Backup CPU, in redundant CPU
configuration, is less than 10 ms