China SM101-W HART to RS485 Gateway Converter by Trusted Suppliers | MODBUS-RTU Factory Solution
Product Specifications
The HART protocol uses the Bell202 Frequency Shift Keying (FSK) standard to superimpose a modulated digital signal on a 4 to 20 mA basis, allowing the HART protocol instrument to allow bidirectional data communication without interfering with the 4 to 20 mA analog signal. SM101 series intelligent converter is an intelligent converter which can modulate and demodulate digital signals and analog signals in both directions.
Product Features
- Equipped with standard RS485 communication interface and gateway, it can configure parameters, change communication baud rate and parity check bit. It is independent of the 1200 communication speed on the HART bus, thus improving the operation speed of the whole system.
- Adopt industrial universal module shell, which is convenient for installation and commissioning.
- It is equipped with special configuration software, which can configure the parameters of SM101-W series intelligent converter, and can communicate with HART protocol intelligent instrument through the intelligent converter.
- Supports standard MODBUS _ RTU and MODBUS _ TCP protocols.
- Support simultaneous connection of multiple HART protocol intelligent instruments.
- Each HART channel is in quarantine with each other without affecting the instrument current output.
- Support a variety of special HART protocol intelligent instruments, and can customize the instructions for reading special HART instruments.
- The data update time is 0.8 seconds for one set. If four sets are connected, the data will be updated in 3.2 seconds.
- Installation method: standard rail installation or fixed installation.
Main Parameters
- Power supply input voltage: DC 12 ~ 24 V, the ripple of the power supply shall not be greater than 200 mA, and the current shall be 100mA.
- Shell size: length 75 mm × width 80 mm × height 41 mm.
- Working temperature: -20 ℃ ~ + 80 ℃.
- Relative humidity: 10% ~ 80%.
Frequently Asked Questions
The SM101 series intelligent converter utilizes the Bell202 Frequency Shift Keying (FSK) standard to modulate and demodulate digital signals and analog signals in both directions. This allows bidirectional communication on a 4 to 20 mA basis without causing any interference to the analog signal.
The converter supports standard MODBUS_RTU and MODBUS_TCP protocols, in addition to the standard HART protocol communication.
No. Each HART channel is completely isolated (in quarantine) from the others, ensuring that the instrument current output remains unaffected even when multiple HART protocol intelligent instruments are connected simultaneously.
The system features a fast data update cycle of 0.8 seconds per connected set. For instance, if you connect four sets of instruments, the complete data set will update in 3.2 seconds.
The device requires a DC 12 ~ 24 V power supply (ripple ≤ 200 mA, current 100mA). It operates reliably in temperatures ranging from -20 ℃ to + 80 ℃ and relative humidity between 10% and 80%.
The unit features a compact industrial universal module shell (75 mm × 80 mm × 41 mm) and supports both standard rail installation and fixed installation methods for convenient commissioning.