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Kepware Knowledge Base: Solution


Yaskawa MP Ethernet: Memory Block Mapping Bug


Last Update: 11/7/2018

MP2300Siec controllers with firmware version 1.2.2.9 may experience a bug in which the last word of the memory block %QW24576-%QW26622 (%QW26622) will map to the same register as %QW24622. Any write to either register will overwrite the other's value.The following tags are affected:

  • %QB26622-%QB26623 = %QW26622
  • %QB26620-%QB26623 = %QD26620
  • %QB26618-%QB26623 = %QL26618
Related Protocols
Yaskawa MP Modbus Ethernet