What is a FCCU fault?

This FCCU fault is triggered whenever the RCCU detects a mismatch in the DMEM located on both cores. The DMEM is replicated and its outputs are monitored by the RCCU. Figure 57. Redundancy mismatch: DSMC D MEM out of lockstep

What does FCCU stand for?

TIC installed two massive electrostatic precipitators (ESPs) in the fluidized catalytic cracking unit (FCCU) of ExxonMobil’s Torrance Refinery. Covering 750 acres, the Torrance Refinery processes 155,000 barrels of crude oil per day, to produce 1.8 billion gallons of gasoline annually.

What is the trigger rate for the FCCU safety core exception?

The FCCU safety core exception indication input is triggered when the safety core runs into the machine check condition. No trigger rate can be determined for this fault. Faults Description MPC574xP FCCU Fault Sources,Application Note, Rev. 0, 04/2016 NXP Semiconductors 27 Figure 42. Safety core exception indication 5.41.

What happens if the frequency violates the FCCU threshold?

If the frequency violates the programmed thresholds, the flag bit is set, and an interrupt is generated (if enabled). The fault signal is also immediately sent to the FCCU, which can take safe actions. The fault-reporting path is shown in this figure: