Overview
| brand | Songmao | size | Length 100 * Width 70 * Height 26 |
| purpose | Convert the hart protocol of the instrument to modbus protocol | weight | 0.3kg |
| power | 0.5w | colour | SM100-B, SM100-A, SM100-A+B, SM100-B+B, SM100-B+D, SM100-A+B+S |
| measuring range | All instruments with hart protocol | Processing customization | no |
| Wavelength range | Suitable for all instruments with hart protocol | dynamic range | All instruments with hart protocol |
| Normal operating temperature | -20 ℃~+80 ℃ | relative humidity | 10% to 80% |
Product Details
1、 Product Introduction
The SM100 series of HART intelligent converters are products developed using ARM microprocessors, specialized chips for modulation and demodulation of the HART protocol, and extensive practical experience. Designed according to the requirements of industrial products, it has high reliability and stability. The intelligent converter is equipped with standard RS232 and RS485 interfaces, which can transparently transmit data with intelligent instruments with the HART protocol or use MODBUS_ The RTU protocol reads data to ensure real-time transmission of data. The HART protocol uses the Bell202 Frequency Shift Keying (FSK) standard, which superimposes modulated digital signals on a 4-20mA basis, allowing the HART protocol instrument to allow bidirectional data communication without interfering with 4-20mA analog signals. The SM100 series intelligent converter is an intelligent converter that performs bidirectional modulation and demodulation between digital signals and analog signals.
2、 Product Features
1. Equipped with standard RS232 and RS485 communication interfaces, it can configure parameters, change communication Baud and Parity bit, independent of the 1200 communication speed on the HART bus, so as to improve the operation speed of the whole system.
2. Adopting an industrial universal module casing for easy installation and debugging.
3. Equipped with dedicated configuration software, through the SM100 series intelligent converter, data communication with the HART protocol intelligent instrument and parameter configuration of the intelligent converter can be carried out
4. Support standard MODBUS_ RTU protocol.
5. Support the simultaneous connection of multiple smart instruments using the HART protocol.
6. Support multiple special HART protocol intelligent instruments and be able to customize the reading of special HART protocol instructions for HART instruments.
3、 Technical parameters of SM100 series products
1. Power supply: DC12-24V: The ripple of the power supply should not exceed 200mV, and the current should be provided with 100mA.
2. Physical dimensions: 100mm long * 70mm wide * 26mm high.
3. Working temperature: -20 ℃ -80 ℃.
4. Relative humidity: 10% -80%.
4、 The difference between transparent protocol and MODBUS-RTU:
1. Application of HART-MODBUS converter in MODBUS-RTU data acquisition
2. Application of HART-MODBUS converter in DCS (PLC) control system
5、 Application occasions
1. Application of HART-MODBUS converter in MODBUS-RTU data acquisition
2. Application of HART-MODBUS converter in DCS (PLC) control system
