Modbus TCP/IP to CC-Link Local Station and Intelligent Device Gateway


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The ProSoft Technology Modbus TCP/IP to CC-Link communication gateway allows Schneider Electric control platform users to integrate CC-Link Master compatible products with existing Modbus TCP/IP control networks.

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 CC-Link protocol driver acts as a Local or Intelligent Station, which enables easy connection to the CC-Link Master-controlled network for data transfer. Configuration options allow the gateway to occupy up to four (4) stations on the CC-Link network. Transient Messaging capability increases overall I/O data transfer capacity by more than 8,000 words. When configured as a Local Station, the gateway allows read-only viewing of the entire CC-Link Master cyclic database from all configured slave on the CC-Link network.

Features and Benefits

Powerful network integration

  •  Communicate between dissimilar networks
  •  A shared 10.000-word database exchanges information from devices on both networks
  •  Allows integration of Modbus TCP/IP-based systems into a CC-Link Master-controlled network

Modbus TCP/IP

  •  Client and/or Server communication configurations supported
  •  Five simultaneous Server connections on TCP/IP Service Port 502 and five additional Server connections on any unreserved service port (typically TCP/IP Service Port 2000)
  •  One Client connection supports up to 100 commands to interface with processors or other Server-based devices

CC-Link Intelligent or Local Station

  •  Compatible with CC-Link Version 1.10
  •  Transient Message support for peer station communication adds more than 8,000 words of additional I/O data transfer capacity
  •  Supports up to 4 occupied slave stations with 4 data words and 32 data bits per station
  •  As a Local Station, provides a read-only list of all network slave cyclic and status data
  •  CC-Link Partner Association (CLPA) Certification

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 anytime for pre-sale, set-up, or troubleshooting support help you get going sooner and stay running longer
  •  Three-Year Warranty ensures reliability and protects against equipment failures
  •  Free ProSoft Software tools tightly integrated with our gateway hardware...a simple and quick, total solution to help you make our gateways fit your applications



The MNET-CCLINK modules are the ideal solution for the many applications where Modbus TCP/IP connectivity can be used to integrate a CC-Link device into a system. The Modbus TCP/IP gateway is a powerful module designed with both Client and Server support, enabling easy connection to other Modbus devices (Modicon processors and many others). In combination with the CCLink device support, the module provides a very powerful interface to the many CC-Link devices which are in use in the industrial marketplace today. Applications for the module are found in most industries, especially Manufacturing, Auto, Oil and Gas, Electrical Power, Food Processing, Semiconductors, Pharmaceuticals, Material Handling and Building Automation.


Internal Database

The ProLinx module contains an internal database that consists of areas for application data, status information, and configuration information.

The internal database is shared between all ports on the module and is used as a conduit to pass information from a device on one network to one or more devices on another network.

Application Data Area

The data area is used to store and retrieve data by the protocol drivers and for data exchange between protocols. The database is used as a source for write commands to remote devices and holds data collected from the remote devices. Commands defined in the configuration file (stored in the configuration data area) control how the data is to be handled in the database.

Status Data Area

This area is used to store error codes, counters, and port status information for each port.

Configuration Data Area

This area contains module configuration information such as port configuration, network information, and command configuration. This configuration file is downloaded to, or uploaded from, this area.




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% (without 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

CC-Link LED Indicators

Run (Network Status)
L Run (Data Link Execution)
L Err (Data Link Comm Error)
SD (Sending Data LED)
RD (Receiving Data LED)
ERR (Switch Setting Error)

Configuration Serial Port

DB-9M RS-232 only
No hardware handshaking

Ethernet Port (Ethernet modules only)

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

CC-Link Port

High speed RS-485 screw termination included

Serial Port Isolation

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

Shipped with Each Unit

Mini-DIN to DB-9M serial cable
4 ft RS-232 configuration cable
2.5 mm screwdriver
CD (docs and Configuration utility)
CC-Link to Terminal Block connector


ProSoft Configuration Builder (PCB)
MNET CCLINK Datasheet 1.01 MB Last Modified 11/07/2013
MNET Protocol Manual 631.11 kB Last Modified 02/16/2012
CCLINK Driver Manual 2.12 MB Last Modified 02/24/2021
MNET-CCLINK Setup Guide 1.42 MB Last Modified 05/09/2010
MNET-CCLINK Sample Configuration File 16.87 kB Last Modified 05/10/2010


CCLINK Protocol Specification

The CC-Link interface is an adapter (Local Station & Intelligent Device) which can be connected to a CC-Link master that controls the data transfer, and enables easy connection to Mitsubishi PLCs.

Protocol Specifications

CC-Link (Control & Communication Link) is an open, standards-based communication protocol that enables easy connection to Mitsubishi PLCs, and provides fast, reliable communication on fieldbus networks used in automation and process control. CC-Link is the dominant protocol used in Asia, and is rapidly gaining acceptance worldwide.

CC-Link Specifications

Maximum number of occupied stations

4 stations

Maximum Number of Devices per network

64 Devices

Communication speed

10M / 5M / 2.5M / 625k / 156kbps

Communication system

Broadcast Polling system

Synchronization system

Frame synchronization system

Encoding system


Transmission path format

Bus format (EIA RS485 conformance)

Transmission format

HDLC conformance

Error control system

CRC (X16+X12+X5+1)

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


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