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Modbus TCP/IP to BACnet/IP Client Gateway


Discontinued: No new product for sale. More Info
Recommended replacements: PS-QS-1x10-0757

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The ProLinx Modbus TCP/IP to BACnet/IP Client Gateway creates a powerful connection between devices on a Modbus TCP/IP network and BACNET devices. This stand-alone DIN-rail mounted protocol gateway provides a single Ethernet port.
The Modbus TCP/IP (MNET) driver can be used to interface many different protocols into the Schneider Electric Quantum family of processors as well other software solutions supporting the protocol. The MNET driver supports Client connections as well as Server connections.
The ProLinx BACnet/IP (Building Automation and Control networking) protocol version is designed specifically to meet the communication needs of building automation and control systems for applications such as heating, ventilating, and air-conditioning control, lighting control, access control, and fire detection systems with limited BACnet/IP command support.

Features and Benefits

Powerful network integration

  • Communicate between dissimilar networks
  • Shared database exchanges information from devices on both networks
  • View diagnostics between both networks

Modbus TCP/IP protocol interface

  • Modbus TCP/IP adds Ethernet capability to one of the most widely used industrial protocols
  • Suitable for SCADA and "foreign device" interface applications
  • Floating point data movement supported, including configurable support for Enron and Daniel floating point applications
  • Communicate with programmable controllers, intelligent devices, sensors and instruments
  • Allows PCs and HMIs to monitor field devices

BACnet/IP Client

  • Standard protocol for Building Automation and Control limited to Analog and Digital I/O commands
  • Communicate with Building Automation controllers, HVAC, Fire and Safety equipment
  • Support for Trane Building Control Unit (BCU)

Easy to Configure and Monitor

  • Graphical drag-and-drop configuration tool for simple module configuration
  • LED diagnostics for at-a-glance health check
  • Easy to use diagnostics window with menu-driven hardware and protocol diagnostics
  • View module database contents through serial connection to a desktop PC

Backed by ProSoft Technology

  • 20-year history of delivering high-quality, reliable solutions designed with you in mind
  • Free, unlimited, worldwide Technical Support by phone for pre-sale, set-up, or troubleshooting support helps you get going sooner and stay running longer
  • Three-Year Warranty ensures reliability and protects against equipment failures
  • Free ProSoft Software tools tightly integrate with our hardware...a simple and quick, total solution to help you make our products fit your applications


The ProLinx Communication Modules provide connectivity for two or more dissimilar network types. The modules, encased in sturdy extruded aluminum, are stand-alone DIN-rail mounted protocol gateways, providing communication between many of the most widely used protocols in industrial automation today.




Power Supply

24 VDC nominal
18 to 32 VDC allowed
Positive, Negative, GND Terminals
2.5 mm screwdriver blade

Current Load

500 mA max @ 32 VDC max

Operating Temperature

-4° F to 122° F (-20° C to 50° C)

Storage Temperature

-40° F to 185° F (-40° C to 85° C)

Relative Humidity

5% to 95% (with no condensation )


 5.20 in H x 2.07 in W x 4.52 in D (13.2 cm x 5.25 cm x 11.48 cm)
 5.20 in H x 2.73 in W x 4.52 in D
(13.2 cm x 6.934 cm x 11.48 cm)

LED Indicators

Power and Module Status
Application Status
Serial Port Activity
Serial Port Error Status

Configuration Serial Port

DB-9M RS-232 only
No hardware handshaking

Ethernet Port (Ethernet modules only)

10Base-T half duplex RJ45 Connector
Link and Activity LED indicators
Electrical Isolation 1500 V RMS at 50 Hz to 60 Hz for 60 s, applied as specified in section 5.3.2 of IEC 60950: 1991
Ethernet Broadcast Storm Resiliency = less than or equal to 5000 [ARP] frames-per-second and less than or equal to 5 minutes duration

Application Ports

Modbus Plus Connector
Two DB9 Female Standard Modbus Plus connectors

Serial Port Isolation

2500 V RMS port signal isolation per UL 1577
3000 VDC min. port to ground and port to logic power isolation

Shipped with Each Unit

Mini-DIN to DB-9M serial cables
4 ft RS-232 configuration cable
2.5mm screwdriver
CD (docs and Configuration utility)
RS-422/485 DB-9 to Screw Terminal Adaptor (1 or 4, depending on ports)


ProSoft Configuration Builder (PCB)
MNET BACNET Datasheet 777.98 kB Last Modified 04/26/2010
MNET Protocol Manual 631.11 kB Last Modified 02/16/2012
BACNET Protocol Manual 742.83 kB Last Modified 02/16/2012
PLX EDS File 333.95 kB Last Modified 05/10/2010


BACNET Protocol Specification

Protocol Specifications

The BACnet/IP (Building Automation and Control networking) protocol is designed specifically to meet the communication needs of building automation and control systems for applications such as heating, ventilating, and air-conditioning control, lighting control, access control, and fire detection systems. The ProLinx BACNET driver implements a subset of the BACnet/IP protocol.

BACnet/IP Client Specifications

The module controls the read/write data transfer between the gateway and other BACnet/IP devices.

BACnet/IP Client Specifications


One client

Command List

Support for 100 commands, each configurable for command, IP address, register to/from addressing and word/bit count.

Service Port

1 to 65535

Function Code

12, 14, 15 and 16 (Read/Write Single & Multiple)

Data Type

0, 1, 3 and 4 (BO, BI, AO & AI)

Point Count

1 to 25

MNET Protocol Specification

The Modbus TCP/IP protocol driver can interface many different protocols into Schneider Electric Quantum processors as well other solutions supporting the protocol. The MNET driver supports Client and Server connections, and when coupled with the Web option provides a web/ftp interface as well.

Protocol Specifications

The Modbus TCP/IP driver interfaces with a common internal database in the module. This permits the sharing of data between the Modbus TCP/IP and other networks and devices.

Modbus TCP/IP Server


Server supports up to 5 independent connections each to Modbus TCP/IP clients on Service Port 502 using the standard MBAP protocol, and Service Port 2000.

Configurable Parameters

Module IP Address
Modbus address offsetting

Modbus TCP/IP Client


Actively reads and writes data with Modbus TCP/IP compatible devices.

One client connection (up to 100 servers/devices with 100 commands)

Configurable parameters

Number of active commands, Min Command Delay, Response Timeout, Retry Count, Command Error Pointer

Command List

Up to 100 fully configurable commands on the Client port


Ex Certificate (ATEX Directive) 114.27 kB Last Modified 03/13/2019
CB Safety 35.78 kB Last Modified 08/27/2012
Declaration of Conformity (RoHS/CE) 299.92 kB Last Modified 03/04/2018
Russian GOST-R 7.07 MB Last Modified 02/22/2013
GOST-R Declaration of Conformity 6.68 MB Last Modified 02/22/2013
Korean KC Registration 807.00 kB Last Modified 02/22/2013
UL/cUL; Class 1, Div 2 1.08 MB Last Modified 07/02/2013
UL/cUL; Class 1, Div 2 (Canada) 1.10 MB Last Modified 07/02/2013