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Fully Isolated HART to RS485 Gateway MODBUS-RTU Converter SM101-W - Top China Suppliers & Factory Solution

The SM101-W series HART smart converter is an advanced product featuring an ARM microprocessor and a HART protocol modem chip, developed through extensive practical experience. Designed to meet industrial standards, this converter offers exceptional reliability and stability. With a standard RS485 interface and a built-in gateway, it enables seamless data transmission with HART-compliant intelligent instruments. Additionally, it can convert data to MODBUS_RTU or MODBUS_TCP protocols, ensuring real-time data communication. As a leading China supplier, our factory guarantees top-notch quality and performance in every device, making it an ideal choice for industrial applications.

Product Details

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

DC 12 ~ 24 V
Ripple ≤ 200 mA, Current 100mA

Shell Size

75 mm × 80 mm × 41 mm

Working Temp

-20 ℃ ~ + 80 ℃

Relative Humidity

10% ~ 80%

Frequently Asked Questions

QHow does the SM101 series intelligent converter transmit data?

The SM101 series converter utilizes the HART protocol based on the Bell202 Frequency Shift Keying (FSK) standard. It superimposes a modulated digital signal onto a 4 to 20 mA analog signal, allowing bidirectional data communication without causing interference to the analog signal.

QWhich communication protocols are supported by this converter?

It fully supports standard MODBUS_RTU and MODBUS_TCP protocols, making it highly compatible with various industrial control systems.

QCan I connect multiple HART instruments to the converter simultaneously?

Yes, the converter supports simultaneous connection of multiple HART protocol intelligent instruments. Each HART channel is completely isolated from the others, ensuring that the instrument current output remains unaffected.

QWhat is the data update speed for connected instruments?

The data update time is 0.8 seconds for a single set of instruments. If you connect multiple sets, the update time scales accordingly (e.g., 3.2 seconds for four connected sets).

QWhat are the power requirements and installation options?

The converter requires a power supply input voltage of DC 12 ~ 24 V (ripple ≤ 200 mA, current 100mA). For physical installation, it supports both standard rail installation and fixed installation options.