diff --git a/fmmd_design_aide/fmmd_design_aide.tex b/fmmd_design_aide/fmmd_design_aide.tex index dc5fd36..700fcb5 100644 --- a/fmmd_design_aide/fmmd_design_aide.tex +++ b/fmmd_design_aide/fmmd_design_aide.tex @@ -275,8 +275,8 @@ and the reading is assumed to be valid. %% OK TR1 OFF TEST LINE ON & TC:1 $R36$ SHORT & No added resistance & NO TEST EFFECT & XX 1.38 \\ \hline TEST LINE OFF & TC:1 $R36$ SHORT & dormant fault & NO SYMPTOM & XX 1.38 \\ \hline -TEST LINE ON & TC:2 $R36$ OPEN & open circuit & OPEN & XX 12.42\\ \hline -TEST LINE OFF & TC:2 $R36$ OPEN & open circuit & OPEN & XX 12.42\\ \hline +TEST LINE ON & TC:2 $R36$ OPEN & open circuit & OPEN CIRCUIT & XX 12.42\\ \hline +TEST LINE OFF & TC:2 $R36$ OPEN & open circuit & OPEN CIRCUIT & XX 12.42\\ \hline \hline TEST LINE ON & TC:3 $TR1$ ALWAYS ON & dormant fault & NO SYMPTOM & XX 1.38 \\ \hline TEST LINE OFF & TC:3 $TR1$ ALWAYS ON & No added resistance & NO TEST EFFECT & XX 1.38 \\ \hline @@ -288,14 +288,22 @@ TEST LINE OFF & TC:4 $TR1$ ALWAYS OFF & dormant fault & NO S \end{table} For the FMMD analysis in table \ref{tab:testaddition} we have two failure modes for its derived component -`no~test~effect' or `reading~out~of~range'. +`no~test~effect' or `open~circuit'. +%~out~of~range'. The next stage is to combine the two derived components we have made into a functional group. \section{FMMD Hierarchy, with milli-volt amp and safety addition} +The next stage is to take the two derived components +and place them into a functional group. +We can now analyse this functional +grou w.r.t the failure modes in the two derived compoennts. + +\vspace{20pt} Draw FMMD hierarchy diagram. +\vspace{20pt} \subsection{Analysis of FMMD Derived component `added safety milli-volt amp'}