Open network connection
(FL-net interface module)

MELSEC iQ-R series programmable controllers manufactured by Mitsubishi Electronic are available for building the FL-net (OPCN-2) system.
The FL-net (OPCN-2) can be interconnected to devices, such as programmable controllers, computerized numerical controllers (CNC), and personal computers which are manufactured by different manufacturers, providing control and monitoring.

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Easy system start-up

The module supports the functions of Mitsubishi Electric GX Works3, making users' programming easier.

  • Initial setting on GUI
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    • Graphically configurable initial setting
    • Module assignments by dragging and dropping
  • Module label
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    • Label programming supported
    • Device and buffer memory address selection from the list
    • Ladder editor input supported
    • Auto-tracking of module assignments
  • Intelligent function module monitor
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    • Display of device assignment and current value
    • Available for start-up and troubleshooting
  • Module diagnostics
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    • Display of module status on GX Works3
    • Display of error code details
    • Same operation as the Mitsubishi Electric MELSEC iQ-R series modules
Module FB (function block)
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• Module FBs available for basic functions (17 types)
• Easier programming
• English and Japanese supported
* Module FBs and the reference manual can be download on our website.

Two communication functions to match the application

Data communications on FL-net (OPCN-2) are performed by either cyclic transmission or message transmission.

Cyclic transmission
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Each node is linked to common memory and data can be shared.
Message transmission
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Specific data is communicated as it is required.

Masterless and large-scale network

Masterless method enables users to connect/disconnect each node to/from the network at any time without affecting communications of other nodes.
Users can freely power on/off any node, perform maintenance, and connect a maximum of 254 devices*1.
*1: 249 devices can be used as control devices. The other five devices are used for failure diagnostics.

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Model list

FL-net (OPCN-2) interface module

Model Name
ER-1FL2-T MELSEC iQ-R series-compatible FL-net (OPCN-2) interface module