A system and method for transmitting device status information from a first internal network, through a first internal network firewall, over an external communications network and to a second network wherein the first internal network includes a marking device and a computing device having a memory. A SOFC employing the composite anode can be used for power generation at temperatures below 700\xb0 C. Global propagation of known precise feedback values are used to replace approximate and unavailable values, and global verification of feedback data after optimization to detect discrepancies is employed. The adjustment screw has a tapered portion that drives the blade carriage through a single contact point via a ball bearing. The adjustment may be based at least in part on a proximity of a temperature of the IC relative to a predetermined temperature. A coker feedstock, such as a vacuum residuum, is heated in a heating zone to coking temperatures then conducted to a coking zone wherein volatiles are collected overhead and coke is formed.