Mitsubishi Electric MELSEC iQ-R Series - Page 109

3 DETAILS OF FUNCTION
3.2 MELSEC iQ-R Series Data Link Functions
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3
■ Return value
■ Relevant function
Page 82 mdrClose
Page 90 mdrOpen
Return value Description
0 (0000H) Normal
Other than 0 (0000H) Error
For details on the error, refer to the following chapter.
Page 108 ERROR CODE LIST