MITSUBISHI MELSEC 3E (ASCII) (Ethernet)

This driver provides a software interface and communication protocol between Xpanel and Mitsubishi MELSEC Q Series PLCs.

This protocol uses ASCII code (as opposed to binary code). It supports the following families of MELSEC PLC Ethernet modules:

QJ71E71
QJ71E71-B2

Communication Setup: Xpanel

Create a new device

To create a new device, select [Tools] → [I/O Devices] or click the 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 ‘Ethernet Communication Configuration’ dialog box will appear as shown in the following picture:

In this window, set the ‘Device Type’ to ‘MITSUBISHI MELSEC 3E (ASCII)’ and configure the remaining Ethernet communication parameters. See the Communication Configuration section for more information.

Note: The ASCII MELSEC driver only uses the TCP/IP protocol. Do not choose the UDP protocol in the above dialog box.

Create a station

Move to the [Station] tab of the ‘Ethernet 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 database window, accompanied by the ‘Device Name’.

Station Type: Choose ‘MELSEC’ (this is the only available option).

IP Address: Give the IP address of the PLC in dotted decimal format (e.g. “1.2.3.4“).

Socket Port Number: Give the port number used by the PLC.

See the Communication Configuration section for more information about the remaining parameters.

Address Notation

Device tag addresses used within Xpanel should have the following format:

Notation (Base)	Format	Example
10 (decimal)	[Symbol][Address in decimal format]	D0012
16 (hexadecimal)	[Symbol][Address in hexadecimal format]	X01FC

The following table lists the devices which can be referenced within the Xpanel database:

Symbol	Memory Area	I/O Address Range	Notation	Bit/Word
X	Input Relay	X000000-X001FFF	16	Bit
Y	Output Relay	Y000000-Y001FFF	16	Bit
M	Internal Relay	M000000-M008191	10	Bit
M	Internal Relay	M009000-M009255	10	Bit
L	Latch Relay	L000000-L008191	10	Bit
S	Step Relay	S000000-S008191	10	Bit
B	Link Relay	B000000-B001FFF	16	Bit
F	Annunciator	F000000-F002047	10	Bit
TS	Timer Contact	TS00000-TS02047	10	Word
TC	Timer Coil	TC00000-TC02047	10	Word
TN	Timer Current Value	TN00000-TN02047	10	Word
SS	Retentive Timer Contact	SS00000-SS02047	10	Word
SC	Retentive Timer Coil	SC00000-SC02047	10	Word
SN	Retentive Timer Current Value	SN00000-SN02047	10	Word
CS	Counter Contact	CS00000-CS01023	10	Word
CC	Counter Coil	CC00000-CC01023	10	Word
CN	Counter Current Value	CN00000-CN01023	10	Word
D	Data Register	D000000-D08191	10	Word
D	Data Register	D9000-D9255	10	Word
W	Link Register	W000000-W001FFF	16	Word
R	File Register	R000000-R008191	10	Word

Communication Cable Wiring

Connect through the Ethernet HUB
Direct Connection