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This driver supports communication with MELSEC-FX series PLCs through an RS-232C/422A port.

This driver uses the dedicated protocol for the FX series and uses control protocol format 1.

Communication Setup: Xpanel

Create a new device

To create a new device, select ‘Tools’ → ’I/O Devices’ or click the (blue star) icon in the toolbar. The following picture shows the first step in creating a new device:

I/O Device Name: Give a device name. This name will be used in the tag database, accompanied by the ‘Station Name’.

Select a device type

After selecting the ‘OK’ button in the previous step, the ‘Serial Communication Configuration’ dialog box will appear as shown in the following picture:

In this window, set the ‘Device Type’ to ‘MITSUBISHI Melsec FX’ and configure the remaining serial communication parameters. Ensure that these parameters are matched with the PLC configuration.

Create a station

Move to the ‘Station’ tab of the ‘Serial Communication Configuration’ dialog box. In this dialog box, connected PLC stations can be configured and registered to the Xpanel.

Each field can be configured with the following rules:

Station Name: Give a name to the PLC. This name will be used in the tag database, accompanied by the ‘Device Name’.

Station Type: Choose the type of connected PLC (“FX“ is the only available option).

Network ID: N/A

Station No: Specify a decimal number between 0 and 15. This number must be matched with the number in the special data register D8121 of the FX PLC.

16-Bit Data Swap: N/A

32-Bit Data Swap: N/A

String Data Swap: N/A

Using Checksum: This field has no effect. This communication driver always uses a checksum.

Comm. Error Message Pop Up: When this item is checked, Xpanel displays a communication error message box for every Rx and Tx error. Otherwise (unchecked), Xpanel does not display a message for communication errors. This message box will close automatically after a few seconds.

Communication Setup: MELSEC FX PLC

Configuration on the PLC side is performed using the ‘GX Developer’ application.

 For normal communication with Xpanel, the following parameters must be set as shown:

Protocol

Dedicated Protocol

Format

Protocol Format 1

Sum Check

Enable

Address Notation

Memory

CPU

Format

Bit/Word

FX0n

FX,FX2c

FX2n

Input

X

X0000-X0177

X0000-X0337

X0000-X0267

Octal

Bit

Output

Y

Y0000-Y0177

Y0000-Y0337

Y0000-Y0267

Octal

Bit

Aux Relay

M

M0000-M0511

M0000-M1535

M0000-M3071

Decimal

Bit

Special Relay

M

M8000-M8254

M8000-M8255

M8000-M8255

Decimal

Bit

Status Relay

S

S0000-S0127

S0000-S0999

S0000-S0999

Decimal

Bit

Data Register

D

D0000-D8255

D0000-D8255

D0000-D8255

Decimal

Word

Timer

TN

TN000-TN063

TN000-TN255

TN000-TN255

Decimal

Word

Counter

CN

CN000-CN254

CN000-CN255

CN000-CN255

Decimal

Word

Wiring Diagram

RS-232C

           

RS-422

RS-485

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