Mitsubishi MELSEC LJ71C24, User Manual

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7 SETTINGS FOR THE C24
7.3.3 Communication protocol setting
Set the communication protocol for the data communication with external devices.
The following shows the setting value list.
Setting items Setting contents
MELSOFT Connection
For connection to MELSOFT products
MELSOFT communication rate and transmission specifications are
automatically set.
Format 1
Format 2
Format 3
Format 4
Set for communication with ASCII code in the specified format of an A
compatible 1C frame or QnA compatible 2C/3C/4C frames
MC protocol
Format 5 Set for communication with binary code in a QnA compatible 4C frame
Nonprocedural protocol Set for communication using nonprocedural protocol
Bidirectional protocol Set for communication using bidirectional protocol
For linked operation setting
Set to CH1 side when CH1 and CH2 interfaces are used in linked
operation (operated with the communication protocol of the CH2 side).
For details, refer to Section 7.3.5.
Predefined Protocol Set for communication using predefined protocol
ROM/RAM/Switch test Set for self-diagnosis of the modules
Self-loopback test Set for checking operation of each interface of the modules