Modbus is widely used in the field of factory automation and plant automation because its specifications are open to the public, free to use and relatively easy to implement. Therefore, Modbus is the most common serial communication protocol for connecting industrial equipment.
Modbus is based on serial communication and has two transmission modes, Modbus ASCII and Modbus RTU. The physical layer of Modbus often uses the RS-485 standard. By combining the RL78 microcontroller (MCU) with sample programs and RS-485 transceiver products, you can easily implement slave devices that communicate using Modbus ASCII or Modbus RTU. The RL78 microcontroller has industry-leading low power operation, making it ideal for simple functions such as low power operation, I/O control, and temperature and humidity measurement.
System Benefits:
Select a block to discover products for your design
Title | Category | Buy / Sample |
---|---|---|
RAA788152 5V Half-Duplex, 0.115 Mbps RS-485/422 Differential Transceiver with ±5kV EFT Immunity and ±16.5kV ESD Protection
|
RS-485/422 with Enhanced ESD Protection, Standard RS-485/RS-422 | Buy / Sample |
RL78/G14 Low Power, High Function, General Purpose Microcontrollers for Motor Control, Industrial and Metering Applications
|
RL78 Low Power 8 & 16-bit MCUs, MCU / MPU Selection Table | Buy / Sample |
ISL9005A LDO with Low ISUPPLY, High PSRR
|
Linear Regulators (LDO) | Buy / Sample |
ZMOD4410 Firmware Configurable Indoor Air Quality (IAQ) Sensor with Embedded Artificial Intelligence (AI)
|
Metal Oxide Gas Sensors | Buy / Sample |
HS3001 High-Performance Relative Humidity and Temperature Sensor
|
Humidity & Temperature Sensors | Buy / Sample |