Mitsubishi Electric Got 1000 Training Manual page 179

(4) Software available on one personal computer
When multiple kinds of software are activated on one personal computer, only one
of them is available for communications using the FA transparent function.
Do not concurrently perform any communications using the FA transparent
function. (Offline operation with each software is available.)
Do not perform communications with the GOT (e.g. downloading project data)
from GT Designer2 during communications using the FA transparent function.
Online operation
GX Developer
GT Designer2
Communication with GOT
Appendix 25