Page History

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Logging: all system variables, to ~/interlock/log on hpstracker at 1-second intervals.

Remote control

(not implemented yet) Can relay RS-232 commands to either chillersent by the PC are relayed to one of the chillers depending on first character: "Sstatus" sends "status" to the SVT chiller, "FRG" sends "RG" to the FEB chiller, etc.

Inputs:

• HTM2500LF temperature+humidity sensor inside SVT box
• Flow switch in FEB chiller return line: relay switch closes if flow is above setpoint
• RS-232 connection to FEB chiller: status, set T, measured pressure/flow/T (for monitoring only)
• RS-232 connection to SVT chiller: status, set T, measured pressure/T (status is used for interlocks)
• RS-232 to PC: commands to relay to chillers

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