① FX2N PLC + FX2N-232-BD
② FX2N PLC + FX2N-232-IF
③ bar code reader: Metrologic IS4120
1. When communicating with the bar code reader via the FX2N-232-BD, the communication format is first set in the D8120 and then programmed with the RS (FNC.80) instruction without protocol communication with the bar code reader (received only) Can be.
In this experiment, the bar code side of the communication format is set using a special bar code.
Specific procedures are as follows:

2. When the FX2N-232IF and bar code reader to communicate with the specific procedures are as follows:

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