HCAL low voltage system has very limited number of channels to monitor. Although its design is still not finalized, the basic tool that will be used is Embedded Local Monitor Box (ELMB). Therefore the initial step is to learn how to control ELMBs.
This device was developed by ATLAS collaboration for their LV monitoring needs. It is also foreseen for use in (LHC wide) project of rack control and monitoring. ATLAS DCS pages contain pointers to the quite rich documentation on ELMB.
There are two interesting questions related with the use of ELMBs in DC/DC converters (see ELMB block diagram):
