Thu, 17 Nov 2016 14:04:44 +0300now only correct chart can be created in SFC Viewer
Sergey Surkov <surkovsv93@gmail.com> [Thu, 17 Nov 2016 14:04:44 +0300] rev 1567
now only correct chart can be created in SFC Viewer

if user trying to connect incompatible blocks (by IEC 61131-3 standard), wire highlight will become red