Mitsubishi Electric MELSEC iQ-R Series User Manual page 286

Master/local module

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Table of Contents

■Precautions

• Areas where Class3 communications parameters are set in "EtherNet/IP Configuration" become dedicated to Class3

communications. For the value of 'Communication method specification' (Un\G7751680), 0001H (UCMM communications)

is set by default. Therefore, for areas where Class3 communications parameters are not set, check again the determined

areas to be used for any problem in advance.

• If the value of 'Communication method specification' (Un\G7751680) is rewritten by a program, a data link request may fail

and an error may occur. Care must be taken so as not to rewrite it.

• If data sending/receiving fails, or if an error response is sent from the external device at the time of reception, an error code

is stored in 'Result storage area' (Un\G7752706). ( Page 498 Class3/UCMM communication area)

12 FUNCTIONS

12.3 Message Communication Function (Client)

Troubleshooting

Melsec iq-r cc-link ie tsn plus