Moxa
MGate 4101I-MB-PBS-T

MGate 4101I-MB-PBS-T

MGate 4101-MB-PBS Series

1-port Modbus RTU/ASCII-to-PROFIBUS slave gateways

  • Protocol conversion between Modbus and PROFIBUS
  • Supports PROFIBUS DP V0 slave
  • Supports Modbus RTU/ASCII master and slave
  • Windows utilities with innovative QuickLink function for automatic configuration within minutes
  • Status monitoring and fault protection for easy maintenance
  • Embedded traffic monitoring/diagnostic information for easy troubleshooting
  • Supports redundant dual DC power inputs and 1 relay output
  • -40 to 75°C wide operating temperature models available
  • Serial port with 2 kV isolation protection (for “-I” models)

Certifications Iecex · CE · FCC · UL Listed

Ships from and sold by A5 IT, an authorized Moxa reseller.

Specifications

Serial Interface

Console Port
RS-232 (TxD, RxD, GND), 8-pin RJ45 (115200, n, 8, 1)
No. of Ports
1
Connector
DB9 male
Serial Standards
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
DTR/DSR RTS/CTS
RS-485 Data Direction Control
Automatic Data Direction Control (ADDC)
Pull High/Low Resistor for RS-485
1 kilo-ohm, 150 kilo-ohms
Terminator for RS-485
120 ohms
Isolation
2 kV (I models)

Serial Signals

RS-232
TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422
Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
Data+, Data-, GND
RS-485-4w
Tx+, Tx-, Rx+, Rx-, GND

Serial Software Features

Configuration Options
MGate Manager
Industrial Protocols
Modbus RTU/ASCII Master Modbus RTU/ASCII Slave PROFIBUS DP-V0 Slave

Modbus RTU/ASCII

Mode
Master, Slave
Functions Supported
1, 2, 3, 4, 5, 6, 15, 16, 23
Max. No. of Commands
100
Input Data Size
7744 bytes
Output Data Size
7744 bytes

PROFIBUS Interface

Industrial Protocols
PROFIBUS DP
No. of Ports
1
Connector
DB9 female
Baudrate
9600 bps to 12 Mbps
Isolation
2 kV (built-in)
Signals
PROFIBUS D+, PROFIBUS D-, RTS, Signal Common, 5V

PROFIBUS

Rotary Switch
PROFIBUS addresses 0-99 (addresses 100-125 supported through software configuration)
Mode
DP-V0 Slave
Max. No. of Master Connections
1
Max. No. of PROFIBUS I/O Modules
24 per page
Max. No. of PROFIBUS Pages
32
Input Data Size
7744 bytes
Output Data Size
7744 bytes

Power Parameters

Input Voltage
12 to 48 VDC
Input Current
275 mA @ 12 VDC
Power Connector
Screw-fastened Euroblock terminal

Relays

Contact Current Rating
Resistive load: 1 A @ 24 VDC

Physical Characteristics

Housing
Metal
Dimensions
36 x 105 x 140 mm (1.42 x 4.14 x 5.51 in)
Weight
500 g (1.10 lb)
IP Rating
IP30 Note: It is recommended to attach the M3x3mm Nylok screws at the rear side

Environmental Limits

Operating Temperature
-40 to 75°C (-40 to 167°F)
Storage Temperature (package included)
-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity
5 to 95% (non-condensing)

Standards and Certifications

EMC
EN 55032/35
EMI
CISPR 32, FCC Part 15B Class A
EMS
IEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m IEC 61000-4-4 EFT: Power: 2 kV; Signal: 1 kV IEC 61000-4-5 Surge: Power: 2 kV; Signal: 2 kV IEC 61000-4-6 CS: 150 kHz to 80 MHz: 10 V/m; Signal: 10 V/m IEC 61000-4-8 PFMF
Safety
IEC 60950-1 UL 60950-1 IEC 62368-1 UL 62368-1
Hazardous Locations
ATEX Class I Division 2 IECEx
Freefall
IEC 60068-2-32
Shock
IEC 60068-2-27
Vibration
IEC 60068-2-6 IEC 60068-2-64

MTBF

Time
MGate 4101-MB-PBS models: 1,537,948 hrs MGate 4101I-MB-PBS models: 1,315,666 hrs
Standards
Telcordia SR332

Warranty

Warranty Period
5 years
Details
See www.moxa.com/warranty

Documentation

NameTypeVersionDate
Device Search Utility (portable)128.6 MBUtilityv3.1Nov 17, 2025 Nov 17, 2025 Release notes
Device Search Utility (installer)236.2 MBUtilityv3.1Nov 17, 2025 Nov 17, 2025 Release notes
MGate Manager Utility5.4 MBUtilityv1.19Dec 12, 2023 Dec 12, 2023 Release notes
Firmware for MGate 4101-MB-PBS Series186.1 KBFirmwarev2.1Dec 12, 2023 Dec 12, 2023 Release notes
MGate Manager Utility5.4 MBUtilityv1.18Sep 25, 2023 Sep 25, 2023 Release notes
Software Package for MGate 4101-MB-PBS Series (PROFIBUS GSD file)5.0 KBSoftware Packagev1.1Apr 22, 2020 Apr 22, 2020 Release notes
Moxa CLI Configuration Tool User Manual850.9 KBManualv2.5Feb 12, 2026
Device Search Utility v3.x User Manual2.8 MBManualv1.1Nov 17, 2025
FOSS Statement for MGate Manager214.8 KBDeclarationv1.0Mar 21, 2025
QIG for MGate 4101-MB-PBS Series991.5 KBQIGv6.2Dec 10, 2024
Declaration of Conformity for MGate 4101-MB-PBS Series297.3 KBDeclarationv1.0Jun 04, 2024
Datasheet for MGate 4101-MB-PBS Series719.0 KBDatasheetv1.1Apr 23, 2024
Manual for MGate 4101-MB-PBS Series4.8 MBManualv6.3Dec 05, 2023
Tech Note: How to use the MGate 4101-MB-PBS Series Paging Function569.4 KBTech Notev1.0Oct 13, 2023
Tech Note: How to Program Siemens Step 7 to Get MGate 4101-MB-PBS' Diagnostic Information2.8 MBTech Notev1.0Jul 19, 2017
Tech Note: PROFIBUS Configuration for Siemens S7-3001.6 MBTech Notev1.0Jan 06, 2015
Tech Note: How to Configure Pro-face HMI with Siemens PLC2.8 MBTech Notev1.0Jan 06, 2015
2D CAD for MGate 4101I-MB-PBS TOP467.9 KB2D CADOct 06, 2014
2D CAD for MGate 4101-MB-PBS TOP467.5 KB2D CADOct 06, 2014

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