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ProSoft PLX31-MBTCP-MBS | Modbus TCP/IP to Serial Gateway

ProSoft PLX31-MBTCP-MBS | Modbus TCP/IP to Serial Gateway

Only 10 item(s) left in stock
  • Manufacturer: ProSoft

  • Product No.: PLX31-MBTCP-MBS

  • Country of origin:United States

  • Product Type: ModBus TCP/IP

  • Payment: T/T, Western Union

  • Weight: 1500g

  • Dimensions: 5.05cm x 11.13cm x 13.67cm

  • Shipping port: Xiamen

  • Warranty: 12 months

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The ProSoft PLX31-MBTCP-MBS is a high-performance industrial gateway designed for seamless communication between Modbus TCP/IP and Modbus Serial (RTU/ASCII) networks. It allows a Modbus TCP/IP Client to control Modbus Serial devices, or vice versa, acting as a bridge between Ethernet-based systems and legacy serial infrastructure.

Technical Specifications

Category Specification
Manufacturer ProSoft Technology
Model Number PLX31-MBTCP-MBS
Product Type Modbus TCP/IP to Modbus Serial Gateway
Power Supply 24 VDC nominal (10 to 36 VDC)
Power Consumption 24 VDC @ 100 mA
Operating Temp -25°C to 70°C (-13°F to 158°F)

Ethernet (Modbus TCP/IP) Performance

Feature Capacity
Supported Clients Up to 10
Supported Servers (MBAP) Up to 5
Supported Servers (Encapsulated) Up to 5
Command List Up to 160 fully configurable Client commands

Serial (Modbus Master/Slave) Performance

Feature Capacity
RS Interface RS-232, RS-422, and RS-485 (Hardware selectable)
Baud Rate 110 baud to 115.2 kbps
Parity None, Even, Odd
Data Size 7 or 8 bits
Node Address 1 to 247 (Software selectable)
Command List Up to 100 commands per Master port
RTS On/Off Delay 0 to 65535 milliseconds

Physical Characteristics

Item Data
Dimensions (L x W x H) 5.05 cm x 11.13 cm x 13.67 cm
Unit Weight 0.5 kg
Shipping Weight 1.5 kg

Installation Guidelines

  1. Power Wiring:

    The unit requires a 24 VDC power source. Ensure the polarity is correct when wiring the terminal block to avoid damaging the internal circuitry.

  2. Serial Port Selection:

    The serial port is versatile (RS-232/422/485). Ensure the jumpers or software settings match your physical wiring. For RS-485 long-distance runs, ensure proper 120-ohm termination is applied at the end of the line.

  3. Network Configuration:

    Use the ProSoft Configuration Builder (PCB) software to set the IP address. Ensure the gateway is on the same subnet as your Modbus TCP/IP Master (Client).

  4. Mounting:

    The unit is designed for standard DIN-rail mounting. Ensure adequate clearance for airflow, especially in high-temperature environments.

Frequently Asked Questions (FAQs)

Q1: Can this gateway support both Modbus RTU and Modbus ASCII?

A: Yes. The serial port can be configured for either RTU or ASCII messaging, depending on your field device requirements.

Q2: What is the difference between MBAP and Encapsulated servers?

A: MBAP (Modbus Application Protocol) is the standard header used over TCP/IP (Port 502). Encapsulated Modbus refers to standard serial packets wrapped in a TCP/IP envelope, often used by legacy software drivers.

Q3: How many serial devices can I connect to one PLX31-MBTCP-MBS?

A: In RS-485 mode, you can connect up to 32 devices (standard load) to the serial port, provided they all use the same baud rate and parity settings.

Q4: Is the configuration stored if power is lost?

A: Yes. The configuration is stored in non-volatile memory and is automatically reloaded upon power-up.

Q5: What diagnostic tools are available?

A: The unit features front-panel LEDs for Power, Ethernet Link/Activity, and Serial Transmit/Receive status. Additionally, the ProSoft Configuration Builder provides a "Diagnostic" window for real-time traffic monitoring.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern
Black
Country of origin
United States

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