- Group: Process Automation Modelling
- Subject: New comment (1) on "A combined storage and mixing vessel"
Unit: UNIT (TK101)
EM: EQM01 (XV911, XV912, XV913, XV914), EQM02 (XV101, XV102, XV103), EQM03 (XV104, XV105, XV106, P102)
CM: VALVE (XV101-XV106, XV911-XV914), MOTOR (M101, P102), TRANSMITTER (WT101, TT104), DI (LSL102)
Phase: AGIT PHASE (agitator), JCKT PHASE (jacket), TXIN PHASE (tank transfer in), TXOT PHASE (tank transfer out), WGHT PHASE (weight)
(Equipment Phase Logic in Controller):
AGIT PHASE: Use agitator on-off command, motoe speed setpoint etc. phase parameters to control M101 start/stop and speed. LSL from WGHT PHASE can interlock the agitator for protecting purpose.
JCKT PHASE: Use Cool, Heat, temperature setpoint etc. phase parameters, and operate EQM01 valves matrix, compare with TT104, to control tank temperature.
TXIN PHASE: Use source route setpoint (eg. 1=Solvent, 2=Upstream1, 3=Upstream2), quantities setpoint etc. phase parameters and operate EQM02 valves matrix, compare with WT101, to transfer liquid into tank.
TXOT PHASE: Use destination route setpoint (eg. 1=Down Stream, 2=Drain), quantities setpoint etc. phase parameters and operate EQM03 valves matrix, compare with WT101, to transfer material out from tank. LSL from WGHT PHASE can also interlock the P102 for protecting purpose.
WGHT PHASE: Use LSL setpoint, density setpoint etc. phase parameters to monitor level and generating LSL alarm message etc.
I think for process engineer, it will be easy to combine these phases and create the different type recipes.
Here is a diagram with the equipment modules and phases shown