FAQs

Make sure that the Wonderware screen says that the PLC Communications Status is ‘OK’. If not, reinitiallize the I/O by pressing Alt-S and click on Reinitialize I/O.

Even though you are in Manual Mode, you still need to make sure that downstream equipment is turned on first.
Also make sure that the PLC Status is OK, that there aren’t any alarms and that I/O is enabled.