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HART to Modbus Converter SM101-B - China Industrial Supplies Factory for RS232 & RS485 Solutions

The SM101-A(B) is an advanced HART intelligent converter, meticulously engineered by JIAXING SONGMAO, a leading China supplier and manufacturer in the industry. This product integrates cutting-edge ARM microprocessor technology and a HART protocol modulation and demodulation ASIC, ensuring superior performance validated by extensive practical applications. Designed to meet high industrial standards, the SM101-A(B) guarantees exceptional reliability and stability.

This intelligent converter features standard RS232 and RS485 interfaces, enabling seamless, transparent transmission to HART protocol-compliant smart instruments. It can also convert signals to MODBUS_RTU protocol for efficient data retrieval, ensuring real-time transmission capabilities. The SM101-A(B) adheres to the Bell202 Frequency Shift Keying (FSK) standard for the HART protocol, facilitating bidirectional data communication without disrupting the 4-20mA analog signal. As part of the SM100 series, these intelligent converters excel in both modulation and demodulation, bridging digital and analog signals effectively.

Product Details

Product Specifications

Equipped with standard RS232 and RS485 communication interfaces, which can be used to configure parameters, change communication baud rate and parity bit. It doesn’t influence the communication speed of 1200 on the HART bus, which improves the running speed of the whole system.
Adopted with Industrial General Module shell to ensure easy installation and debug.
With exclusive configuration software, it can be configured with parameters, and communicate with HART Protocol intelligent Instrument for data transfer.
Supports the standard MODBUS_RTU protocol.
Supports a variety of special HART protocol Intelligent Instruments, and can be customized to read the instructions from special HART instruments.

Product Features

SM101-A (B) collects HART signals, outputs Modbus signals.
SM101-A (B) can be installed vertically, saving more space.

Main Parameters

Input Voltage of Power

DC12V～24V (ripple ≤ 200mA, current 100mA)

Physical Dimensions

96mm × 80mm × 25mm (L × W × H)

Operation Ambient Temp

-20℃ ～ +80℃

Relative Humidity

10% ～ 80%

Frequently Asked Questions

Q What interfaces and protocols does the SM101-A (B) support?

The device is equipped with standard RS232 and RS485 communication interfaces. It supports the standard MODBUS_RTU protocol and various special HART protocol Intelligent Instruments.

Q Does the communication configuration affect the HART bus speed?

No. Configuring parameters or changing the communication baud rate and parity bit does not influence the 1200 communication speed on the HART bus, which helps improve the overall system running speed.

Q What are the power requirements for this module?

The required input voltage is DC12V to 24V. The power ripple must not be greater than 200mA, and the operating current needs to be 100mA.

Q How is the SM101-A (B) physically installed?

It features an Industrial General Module shell for easy installation and debugging. It can be installed vertically to save installation space inside enclosures.

Q What are the environmental limitations for operating this device?

The device operates reliably in ambient temperatures ranging from -20℃ to +80℃, with a relative humidity level between 10% and 80%.

Q Can I customize the device to read specific HART instruments?

Yes. With its exclusive configuration software, the device can be configured to communicate with HART Protocol intelligent Instruments and can be customized to read instructions from special HART instruments.