GX Works3 SFC Program Compatibility Technical Bulletin

This technical bulletin details restrictions and workarounds when opening SFC programs (MELSAP3/MELSAP-L) created in GX Works2 format using specific versions of GX Works3 (v1.015R to v1.019V). It specifically addresses the deletion of blocks containing multiple initial steps and the resetting of SFC diagrams to initial status when jumps are present, recommending version 1.020W or later for full compatibility.