7 DATA COMMUNICATIONS USING BIDIRECTIONAL PROTOCOL

MELSEC-Q

(2)Confirmation using the module and GX Configurator-SC

1)Confirmation using the display LED

When the Q series C24 detects an error, including a reception error, the ERR LED lights up. (See Chapter 10.)

2)Confirmation using GX Configurator-SC

•The monitor function is used to check for errors. (See Sections 8.6.3 and 8.6.6.)

•The ERR LED is turned off with the ERR LED OFF function. (See Section 8.6.10.)

3)Confirming the error code

Use one of the following to confirm the error code.

•GX Configurator-SC monitor function (See Section 8.6.6.)

•GX Developer buffer memory monitor function (monitors addresses 257H/267H)

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