The MGate 4101-MB-PBS series from Moxa provides reliable protocol conversion between Modbus RTU/ASCII (Master/Slave) and PROFIBUS DP V0 (Slave). These gateways simplify the integration of Modbus devices into PROFIBUS networks and support Siemens S7-300/400 PLCs. The innovative QuickLink feature drastically reduces setup time with AutoLearning for Modbus commands and AutoMapping for error-free I/O assignments, completing configuration within minutes.

Built for rugged industrial environments, these gateways feature a metal housing, dual redundant DC power inputs, integrated diagnostics, and optional 2 kV isolation on the serial port ("-I" models). Wide temperature models operate reliably in extreme conditions from -40 to 75 °C.

Technical Details:

Serial Interface:

• Ports: 1 (DB9 male)
• Standards: RS-232, RS-422, RS-485
• Baudrate: 50 bps to 921.6 kbps
• Data Bits: 7, 8
• Parity: None, Even, Odd, Space, Mark
• Stop Bits: 1, 2
• Flow Control: DTR/DSR, RTS/CTS
• Isolation: 2 kV (on "-I" models)
• RS-485: Auto Data Direction Control (ADDC), 120-ohm termination

PROFIBUS Interface:

• Ports: 1 (DB9 female)
• Baudrate: 9600 bps to 12 Mbps
• Mode: DP-V0 Slave
• Isolation: 2 kV (built-in)
• Addressing: 0–99 via rotary switch, 100–125 via software
• Max I/O Modules: 24 per page, 32 pages total
• Max Data Size: 7744 bytes (input/output)

Protocol Support:

• Modbus RTU/ASCII Master and Slave
• Supported Modbus functions: 1, 2, 3, 4, 5, 6, 15, 16, 23
• Max Modbus Commands: 100

Power Supply:

• Input Voltage: 12–48 VDC
• Current: 275 mA @ 12 VDC
• Connector: Screw-fastened Euroblock terminal
• Relay Output: 1 A @ 24 VDC (resistive load)

Mechanical:

• Housing: Metal
• Dimensions: 36 × 105 × 140 mm
• Weight: 500 g
• IP Rating: IP30
• Mounting: DIN rail

Environmental Limits:

• Operating Temperature:
• Standard models: 0 to 60 °C
• T-models: -40 to 75 °C
• Storage Temp: -40 to 85 °C
• Humidity: 5–95% non-condensing

Certifications:

• EMC: EN 55032/35, CISPR 32, FCC Part 15B
• EMS: IEC 61000-4-2/3/4/5/6/8
• Safety: IEC/UL 60950-1, IEC/UL 62368-1
• Hazardous Locations: ATEX, IECEx, Class I Division 2
• Environmental: RoHS, WEEE

MTBF:

• Standard: 1,537,948 hrs
• With isolation: 1,315,666 hrs
• Based on: Telcordia SR332

Warranty:

• 5-year manufacturer warranty

Package Contents:

• 1 × MGate 4101-MB-PBS gateway
• 1 × RJ45-to-DB9 console cable
• 1 × DIN-rail kit
• 1 × Quick Installation Guide
• 1 × Warranty card