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Why am I getting "PLC return error code 03H" on the Magelis when communicating to an Idec MicroSmart Pentra PLC over Modbus/TCP?

Issue:
Why am I getting "PLC return error code 03H" on the Magelis when communicating to an Idec MicroSmart Pentra PLC over Modbus/TCP?

Product Line:
Magelis, Vijeo Designer, XBTGC/GK/GT, HMIGTO/GTU/STO/STU, iPC

Environment:


Cause:


Resolution:
It maybe due to the preferred frame length on the Vijeo Designer MB/TCP equipment is set to the maximum.  We recommend to set the preferred frame length to Custom at 120 bytes.  Then redownload the application back down to the Magelis.
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