The MGate 4101-MB-PBS series from Moxa is designed for industrial automation environments requiring reliable communication between Modbus RTU/ASCII devices and PROFIBUS PLCs like Siemens S7-300/400. With its QuickLink feature, setup, I/O mapping, and diagnostics are completed in minutes, not days.

This DIN-rail mountable unit features a rugged metal housing, dual redundant DC inputs, wide operating temperature support, and optional 2 kV serial port isolation for harsh environments. The included relay output enables power loss alerts and maintenance status signaling.

Technical Specifications:

Interfaces:

Serial:

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

Console Port:

• RS-232 (8-pin RJ45, 115200 bps)

PROFIBUS:

• 1 × DB9 female
• Protocol: PROFIBUS DP-V0 Slave
• Baudrate: 9.6 kbps to 12 Mbps
• Addressing: 0–99 via rotary switch, 100–125 via software
• Isolation: 2 kV (built-in)
• Max. Data Size: 7744 bytes input/output
• Supports 1 master connection, 32 pages of up to 24 modules each

Protocol Conversion:

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

Power:

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

Physical Characteristics:

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

Environmental Limits:

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

Certifications:

• EMC: EN 55032/35, FCC Part 15B Class A
• 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

Reliability:

• MTBF:
• Standard Model: 1,537,948 hours
• “-I” Model: 1,315,666 hours
• Standard: 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