$(2)(20$ points$)$ T$-4$ is a mix tank fed from raw material tanks T$-1$ and T$-2.$ Accurate charges are ensured by measuring the weight of each charge in the weigh tank T$-3($load cells WT$-$T$3),$ which then dumps via gravity to T$-4,$ aided by low level switch LSL$-$T$3($true if level is low$).$ Write the state table for the pictured Charge equipment module with the states necessary for the phase ChargeT$1$T$4($masstarget$),$ which charges masstarget kg of liquid from T$-1$ to T$-4.$ Write the SFC for the phase on the next page.

$\{$CV$-$T$3$ is a control valve; the SV valves are solenoid block valves$\}$