Electronic valve control is essential to many industrial applications for liquids and gases. Utilizing the Renesas FS1012 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 especially designed for motor control applications and the RX231/RX65N is used to redundantly monitor the motor position, measure the gas/liquid flow, and to fulfill Safety Integration Level 2 (SIL2) standards thanks to the Functional Safety Platform software. The flow status is displayed on an LCD as well as communicated over Ethernet or RS485. This design can operate off of 12V or 24V.
|RX65N||120MHz 32-bit microcontrollers with enhanced security, connectivity and HMI||Datasheet||Select Specific Device|
|RX23T||RXv2 core, FPU, DSP, low cost and high performance for control applications||Datasheet||Select Specific Device|
|RX231||RXv2 core, FPU, DSP, 48-pin, 256K Flash, rich communication||Datasheet||Select Specific Device|
|ISL85410||Wide VIN 1A synchronous buck regulator||Datasheet||Buy / Sample|
|ISL28134||5V ultra-low noise, zero drift rail-to-rail precision op amp||Datasheet||Buy / Sample|
|FS1012||Gas or liquid flow sensor module||Datasheet||Select Specific Device|
|ISL32459E||±60V fault protected, 3.3V to 5V, ±20V CMR, 20Mbps RS-485 with cable invert, ±15kV ESD||Datasheet||Buy / Sample|