Recently, we have been seeing a few reports of users experiencing the message below when attempting to run their Codesys project:
We have traced this issue to a bug found on both FW28 and FW30 and seems to only occur when downloading a program twice while the run/stop slide switch is set to STOP. This will be corrected in a future firmware update (FW30 Patch 3); however, a simple workaround exists. Keeping the run/stop slide switch to RUN should bypass this issue in the meantime.