Mitsubishi PC Interface Board MD Function Error 77 Technical Bulletin

This technical bulletin provides corrective actions for a memory allocation error (code 77, 4DH) that occurs when executing the MD function on Mitsubishi PC interface boards, including MELSECNET/H, MELSECNET/10, CC-Link, and PLC CPU boards. It details steps to increase the minimum application work area size and includes sample programs in Visual Basic and Visual C++ for adjusting the working set size.