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XMELSECA: Mitsubishi Melsec-Q A-Compatible Protocol Driver v10.0


XMELSECA: Mitsubishi Melsec-Q A-Compatible Protocol Driver

General Information:


The XMELSECA driver implements the Mitsubishi MELSEC-Q protocol that allows you to read and write data to the Mitsubishi PLCs of the A Series (A2N, A3N), AnA Series and AnU Series using the MELSEC A-Compatible 1C Frames Format 1 or 4 protocol through serial communication modules. Data communication using the A compatible 1C frames is equivalent to the communication function using the dedicated protocol supported by the A series computer link modules. RS-232 and RS-422 multi-drop is supported.

Protocol specifications:
Format: MELSEC-Q A-Compatible 1C Frames using Format 1 or 4 Verification: Checksum Enabled Characters: ASCII codes Memory types supported: X, Y, M, TS, TC, TN, CS, CT, CN, D, R and W Suggested COM settings: 19200,E,8,1

Important note:

If you cannot communicate or if you are using RS-485 to connect to the device, you should set the RTS signal during the communication. This can be done by setting the RTSEnable argument when calling the read and write methods. If you still cannot communicate, check that your RS-485 cables are not inverted.


Available Commands:



Supported Devices:

(This list is only indicative and may exist other unlisted equipment that are also communicable with this driver).


This driver includes:



Available Downloads:



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