ProSoft Insights / Technology focus

MVI56E-MNETC vs. MVI56E-MNET: What’s the difference?

Search Insights




Yes, I would like to receive marketing information from ProSoft Technology, Inc., and its affiliates, subsidiary companies and brands indicated below.

I therefore provide my consent to the use of the personal information submitted here for the purpose of providing me marketing information related to ProSoft Technology, Inc. and its affiliates’ and subsidiaries’ products, services and marketing events. I understand that I may withdraw my consent at any time. Additional information regarding ProSoft’s data privacy policies, including how to withdraw this consent, is available at ProSoft Technology, Inc. is a subsidiary of Belden Inc., and their affiliates, subsidiary companies and brands include ProSoft Technology SAS, ProLinx Comunicacao Industria, LTDA; Global Blue Networks Inc., and ProSoft Technology (Asia Pacific) SDN BHD.

Recent Posts

Guide to Using Industrial Safety Protocols over Wireless Ethernet

05 May, 2022 / Application Guides

Find out how functional safety protocols can leverage wireless Ethernet technology to e...

Video: Guide to Antenna Selection and Installation

13 Apr, 2022 / Videos

What do you need to know when selecting and setting up antennas for a wireless communic...

Video: Key Considerations for Edge Computing in Industrial Applications

23 Mar, 2022 / Videos

Edge computing’s usage is growing and has shown no signs of slowing down. Watch this tu...

Ensure Data Integrity and Reliability in Your Water and Wastewater Application

02 Mar, 2022 / Technology focus

To maximize the value of water and wastewater systems and work automation to your advan...

MVI56E-MNETC vs. MVI56E-MNET: What’s the difference?

Wondering which module is best for your operation? Let’s compare the two:

Both modules are Modbus® TCP/IP solutions for ControlLogix®. A major difference between the modules is the number of Client connections.

The MNET version has only one Client connection, whereas the MNETC version supports up to 30 Client connections. So, why would multiple Client connections be better than only one Client connection?

In principle, one Client connection can communicate with an infinite number of devices - there is no limit in the number of targets (the limit would be the number of available commands). It would open the first connection with the first remote server, send the requests, get the responses, and then close this connection in order to open a new one with the next remote server, repeating this process as a loop. This loop of open/close can be very fast and it has been seen that some remote servers do not support this. In the case of remote server maintenance, since this device is no longer on the network, a huge delay will perturb communication with other devices.

With multiple Client connections, if the user links only one Client connection with only one remote server (one Client connection per device), removing one device from the network will not affect communication with other devices, and the known issue with the fast open/close loop is avoided.

For more information about our different ControlLogix Modbus TCP modules watch this video: