MITSUBISHI ELECTRIC QJ71C24N - Manual (Page 174)

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MELSEC-Q
7 DATA COMMUNICATIONS USING BIDIRECTIONAL PROTOCOL
(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
257 H /267 H )