0102
China Factory Suppliers: 8-Channel HART to MODBUS RS485 Protocol Converter & Modbus-TCP Gateway SM100-W
Product Introduction
The ARM microprocessor, a HART protocol modem chip, and a great deal of real-world knowledge were used in the development of the SM100-W series HART smart converter. It offers great stability and dependability and is designed to meet the specifications of industrial items. To enable real-time data transmission, the intelligent converter has a standard RS485 interface and gateway that can either convert to MODBUS_RTU/MODBUS_TCP protocol to read data or transparently send data with intelligent instruments using HART protocol.
The HART protocol instrument enables bidirectional data transmission without interfering with the 4 to 20 mA analog signal by superimposing a modulated digital signal on a 4 to 20 mA basis using the Bell202 Frequency Shift Keying (FSK) standard. Digital and analog signals can be modulated and demodulated in both directions using the SM100 series intelligent converter.
Product Performance
- It has a standard RS485 communication interface and gateway, which allows it to modify the communication baud rate, parity check bit, and settings. It increases the system's overall operating speed because it is not dependent on the HART bus's 1200 communication speed. Adopting an industrial universal module shell makes installation and commissioning easier.
- Equipped with specialized configuration software, it can adjust the SM100-W series intelligent converter's parameters and use the intelligent converter to communicate with an intelligent instrument that uses the HART protocol.
- The standard MODBUS_RTU and MODBUS_TCP protocols are supported.
- Multiple intelligent instruments using the HART protocol can be connected at the same time.
- The instrument current output is unaffected by the quarantine of each HART channel.
- Capable of customizing the instructions for reading specific HART instruments, it supports a wide range of intelligent instruments with the HART protocol.
- One set's data update time is 0.8 seconds. The data will be updated in 6.4 seconds if eight sets are linked.
- Method of installation: fixed installation or regular rail installation.
Main Parameters
- Power supply input voltage: DC 12 to 24 V, current must be 100 mA, and power supply ripple cannot exceed 200 mA.
- The dimensions of the enclosure are 145 mm L by 90 mm W by 73 mm H.
- The operating temperature is between -20°C and +80°C.
- 10% to 80% relative humidity.
Frequently Asked Questions (FAQ)
What is the primary function of the SM100-W series HART converter?
The SM100-W series HART smart converter is designed to bridge the gap between HART protocol instruments and industrial control networks. It converts HART signals to MODBUS_RTU or MODBUS_TCP protocols via a standard RS485 interface, allowing for real-time data transmission and monitoring.
Does the converter interfere with the analog 4 to 20 mA signal?
No. The SM100-W series utilizes the Bell202 Frequency Shift Keying (FSK) standard to superimpose a digital signal on top of the 4 to 20 mA analog signal. This ensures clean, bidirectional digital data transmission without causing any interference to the existing analog loop.
How many HART instruments can be connected, and how fast is the data update?
Multiple intelligent HART instruments can be connected simultaneously. The data update speed is highly efficient: a single instrument updates in 0.8 seconds, while a multi-drop setup of eight connected instruments updates in approximately 6.4 seconds.
What are the power supply and environmental requirements?
The device requires a DC input voltage of 12 to 24 V (100 mA current, with power supply ripple not exceeding 200 mA). It is designed for harsh industrial environments, operating reliably in temperatures ranging from -20°C to +80°C and relative humidity levels between 10% and 80%.
What mounting and installation options are supported?
The SM100-W series features an industrial universal module shell, which simplifies both commissioning and physical setup. It supports two main installation options: fixed mounting or standard industrial rail installation.