RT 451 Level Control Didactic Equipment Vocational Education Equipment Process Control Trainer
Level controlled system based on standard industrial components, smart level sensor, system control via PLC Features - digital control of the level via PLC - integrated touch screen or PC with software as HMI - network capable software with data acquisition for remote learning - use of smart sensors, configuration via PLC: change, save and transfer parameters during operation Learning objectives/experiments - design and function of a level control system - investigate the properties of open and closed loops - investigate disturbance and reference variable response - manipulating variable limitation and effect on the control system - fault finding (fault simulation via PLC) - familiarisation with industrial control engineering components: Siemens PLC as digital controller, smart level sensor with IO-Link interface as measuring element, electropneumatic control valve with positioner as actuator - together with RT 452: investigate cascade control of level and flow rate - familiarisation with IO-Link as communications interface for smart sensors -- standardised, open technology -- interference-free measured value transfer -- exchange of configuration data -- system design (IO-Link device, IO-Link master, PLC) Specification [1] level control process with standard industrial components and smart sensor technology [2] digital control via PLC, controller can be parametrised as P, PI, or PID controller [3] controlled system: transparent tank with overflow and scale [4] measuring element: smart level sensor with IO-Link interface for interference-free transfer of measured values and exchange of configuration data, measurement using the principle of the guided microwave [5] smart level sensor configured via PLC [6] actuator: electropneumatic control valve with positioner [7] generate disturbance variables via proportional valve with motor drive, operation via PLC [8] closed water circuit [9] remote learning: follow and analyse experiments at any number of workstations with LAN/WLAN connection via network capable software [10] software for data acquisition via LAN under Windows 10 [11] multimedia instructional materials online in Media Center Technical data Transparent tank: 4,5L PLC - type: Siemens SIMATIC S7-1200 - modules: compact CPU (8 DI, 6 DO, 2 AI), analogue I/O module (4 AI, 2 AO), IO-Link master Smart level sensor - communications interface: IO-Link - length of probe: 700mm Pneumatically operated control valve DN 25 - Kvs value: 4,0 - nominal stroke: 15mm Pump - max. flow rate: 4,5m3/h - max. head: 12,3m Storage tank: 50L Measuring ranges - pressure: 0...2,5bar - level: 30...600mm - degree of opening: 2x 0...100% 230V, 50Hz, 1 phase; 230V, 60Hz, 1 phase 120V, 60Hz, 1 phase; UL/CSA optional LxWxH: 2030x790x1987mm Weight: approx. 205kg
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