Electronic valve control is essential to many industrial applications for liquids and gases. Utilizing the Renesas flow sensor to monitor the rate of delivery, this design controls the flow via a motor-controlled valve. Two MCUs are utilized for safety concerns. The RX23T is specially designed for motor control applications and the RX231/RX65N is used to redundantly monitor the motor position, measure the gas/liquid flow, and fulfill Safety Integration Level 2 (SIL2) standards thanks to the Functional Safety Platform software. The flow status is displayed on an LCD and communicated over Ethernet or RS-485. This design can operate off of 12V or 24V.
System Benefits:
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RX231 Low-power, High Performance Microcontrollers with 32-bit RXv2 CPU Core and Enhanced DSP and FPU
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RX 32-Bit Performance / Efficiency MCUs, MCU / MPU Selection Table | Buy / Sample |
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RX 32-Bit Performance / Efficiency MCUs, MCU / MPU Selection Table | Buy / Sample |
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Precision Op-amps (Vos <1mV), General-purpose Op Amps | Buy / Sample |
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RX 32-Bit Performance / Efficiency MCUs, MCU / MPU Selection Table | Buy / Sample |
ISL32459E ±60V Fault Protected, 3.3V to 5V, ±20V CMR, 20Mbps RS-485 With Cable Invert, ±15kV ESD
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RS-485/422 with Overvoltage Protection | Buy / Sample |