MOXA MGate 4101-MB-PBS
1-port Modbus RTU/ASCII to PROFIBUS slave gateways




- Protocol conversion between Modbus and PROFIBUS
- Windows utilities with innovative QuickLink function for automatic configuration within minutes
- Redundant dual DC power inputs and relay output supported
- Embedded data packet analyzer
- Powerful and visual diagnostic tool
- -40 to 75°C wide operating temperature models available
The MGate 4101-MB-PBS gateway provides a communication portal between PROFIBUS PLCs (e.g. Siemens S400 and S300 PLCs) and Modbus devices. With the QuickLink feature, I/O mapping can be accomplished within a matter of minutes. All models are protected with a rugged metallic casing, are DIN-rail mountable, and offer optional built-in optical isolation.
Windows Utilities for Easy Setup and Traffic Monitoring
The QuickLink windows utility uses a serial console port to connect to the MGate 4101-MB-PBS and makes configuration and operation as easy as possible. QuickLink can finish configuration in just few minutes by passively detecting Modbus requests with the AutoLearning function, and performing error-free I/O mapping with the AutoMapping feature. QuickLink drastically reduces Modbus-to-PROFIBUS integration time when compared to conventional I/O mapping, which can easily require days to complete. Additionally, embedded monitoring tools can maintain logs of Modbus communication packets and assist in troubleshooting.
Redundant Power Inputs
The MGate 4101-MB-PBS has dual power inputs for greater reliability. The power inputs allow simultaneous connections to two live DC power sources, so that continuous operation is provided even if one power source fails. The higher level of reliability makes these advanced Modbus-to-PROFIBUS gateways ideal for demanding industrial applications.
Warning by Relay Output
A relay output is provided for the power input status. The relay output gives maintenance engineers an additional tool for troubleshooting and maintenance.

Windows Utilities for Easy Setup and Traffic Monitoring
The QuickLink windows utility uses a serial console port to connect to the MGate 4101-MB-PBS and makes configuration and operation as easy as possible. QuickLink can finish configuration in just few minutes by passively detecting Modbus requests with the AutoLearning function, and performing error-free I/O mapping with the AutoMapping feature. QuickLink drastically reduces Modbus-to-PROFIBUS integration time when compared to conventional I/O mapping, which can easily require days to complete. Additionally, embedded monitoring tools can maintain logs of Modbus communication packets and assist in troubleshooting.
Redundant Power Inputs
The MGate 4101-MB-PBS has dual power inputs for greater reliability. The power inputs allow simultaneous connections to two live DC power sources, so that continuous operation is provided even if one power source fails. The higher level of reliability makes these advanced Modbus-to-PROFIBUS gateways ideal for demanding industrial applications.
Warning by Relay Output
A relay output is provided for the power input status. The relay output gives maintenance engineers an additional tool for troubleshooting and maintenance.

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 Software Features | |
Configuration Options | MGate Manager |
Industrial Protocols | Modbus RTU/ASCII Master, Modbus RTU/ASCII Slave, PROFIBUS DP-V0 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) |
Rotary Switch | PROFIBUS addresses 0-99 (100-125 via software) |
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 |
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 |
Environmental Limits | |
Operating Temperature | MGate 4101I-MB-PBS: 0 to 60°C, MGate 4101-MB-PBS-T: -40 to 75°C |
Storage Temperature | -40 to 85°C |
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 |
MTBF | |
MGate 4101-MB-PBS models | 1,537,948 hrs |
MGate 4101I-MB-PBS models | 1,315,666 hrs |
Warranty | |
Warranty Period | 5 years |
Package Contents | |
Device | 1 x MGate 4101-MB-PBS Series gateway |
Cable | 1 x RJ45-to-DB9 console cable |
Installation Kit | 1 x DIN-rail kit |
Documentation | 1 x quick installation guide, 1 x warranty card |
