The MGate 4101-MB-PBS Series connects Modbus RTU/ASCII devices with PROFIBUS DP V0 PLCs (such as Siemens S7-300/400) with reliable protocol conversion. Featuring Moxa’s QuickLink utility, the gateway offers automatic detection of Modbus commands (AutoLearning) and error-free I/O mapping (AutoMapping) within minutes, significantly simplifying setup.

Built for industrial environments, this device includes a rugged metal housing, DIN-rail mounting, dual redundant DC power inputs, and optional 2 kV isolation on serial ports. A relay output adds support for power failure alerts and maintenance notifications.

Technical Details:

Serial Interface:

• Interface Standards: RS-232, RS-422, RS-485
• No. of Ports: 1 × DB9 male
• Baudrate: 50 bps to 921.6 kbps
• Data Bits: 7, 8
• Stop Bits: 1, 2
• Parity: None, Even, Odd, Space, Mark
• Flow Control: DTR/DSR, RTS/CTS
• Isolation: 2 kV (on “-I” models only)
• RS-485: Automatic Data Direction Control, 120-ohm termination

PROFIBUS Interface:

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

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 Parameters:

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

Physical Characteristics:

• Housing: Metal, IP30
• Dimensions: 36 × 105 × 140 mm
• Weight: 500 g
• Mounting: DIN rail
• Rear Screws: M3x3 mm Nylok recommended

Environmental Limits:

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

Certifications:

• EMC: EN 55032/35, CISPR 32, 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, Class I Division 2, IECEx
• Environmental: RoHS, WEEE

MTBF (Mean Time Between Failures):

• Standard Models: 1,537,948 hours
• I-Models: 1,315,666 hours
• 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