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FxLinksMaster

Purpose

Mitsubishi FX Links serial protocol address reading and writing and PLC control driver

Open the plugin

Enter "Development Configuration → Collection Configuration", create a device and select "FxLinksMaster" in "Collection Plugin".

Supported channels and data types

Channel typePre-configuration check
Serial PortConfirm that the serial port is not occupied by other programs and maintains the same baud rate, data bits, stop bits and parity bits as the device.
TCP ClientConfirm network reachability of the device IP, port, and gateway to the device.
TCP serverConfirm that the local listening address and port are available, and allow on-site devices to actively connect to the gateway.

Optional data types: Boolean, Byte, Int16, UInt16, Int32, UInt32, Int64, UInt64, Float, Double, String, Decimal

Plugin properties

Protocol parameters

SettingDescription
Default station numberDefault: 0; fill in: text input. Set the default station number used when the station number is not specified separately in the variable address.
Enable and verifyDefault: Yes; fill in: switch. Controls whether the "Enable and Verify" feature is enabled.

Running parameters

SettingDescription
Waiting time (10 milliseconds)Default: 0; fill in: text input. Set the wait time (10 milliseconds) used when the plugin is run.

Data format

SettingDescription
Frame format (1 or 4)Default: 1; fill in: digital input. Set the frame format (1 or 4) used for data parsing or serialization.

Address rules

  • FX Links bit device area: M, X, Y, S, TS, CS.
  • FX Links WORD device area: D, R, TN, CN.
  • X and Y addresses are parsed in octal, and other addresses are parsed in decimal; you can use s=2;D100 to overwrite the default station number.
  • A maximum of 64 words or 256 bits can be read or written in a single frame.

Special methods

MethodPurposeParameters
RemoteRunAsyncRun PLCNo parameters
RemoteStopAsyncStop PLCNo parameters
ReadPlcTypeAsyncRead PLC modelNo parameters

Functions

FunctionPurpose
Read PLC modelUse Read PLC model to inspect mapped values, status, counters, recent messages, or the latest result.
Remote runUse Remote run with an approved test point and confirm site safety before execution.
Remote stopUse Remote stop with an approved test point and confirm site safety before execution.

Device debug

Enter "Development Configuration → Collection Configuration", select the current device and click "More Functions", then open "Debug".

Dedicated debugging page

Open Development Configuration → Collection Configuration, select the device, and open More Functions → Debug. The following image shows the plugin-specific debug page.

FxLinksMaster debug subpage 1

Debugging notes

Read the PLC type first; remote running and stopping are high-risk controls and must be confirmed twice before execution.

Verify the configuration

  1. Use the plugin-specific debug panel with one confirmed test point or test message.
  2. Confirm that the returned value or received message matches the device point list.
  3. Perform writes or control operations only with an approved test point and the site safety procedure.

Troubleshooting

  • The debug panel shows no result: Check the required inputs and plugin parameters, then inspect the device or target log for a response or error.
  • Special method execution fails: Check method parameters and permissions; control, write or reset methods also need to confirm that the device is in a state that allows operation.
  • The serial port device does not respond: Confirm that the serial port is not occupied, and check the baud rate, data bits, stop bits and parity bits.