The problem was an array which was not defined big enough. So it blew up during initialization. There was no error message that the array had an overrun. I guess Codesys does no bounds checking on arrays?
Whenever I try to start the application loaded onto the Pi3 , the CodeSys IDE hangs for a minute and the Pi3 app will not start. On the Pi3 I executed : cat /tmp/codesyscontrol.log The Log indicates an exception........... 2020-06-19T09:27:38Z, 0x00000007, 8, 81, 1, #### Exception: EXCEPTION <task>BlkDrvUdp</task> <ip>0x20000</ip> <bp>0x70004</bp> <sp>0x768abe80</sp> I get the same error with Pi SL and Pi MC SL. ;**************************************************************** ;<loggername>/tmp/codesyscontrol.log</loggername>...
I get the same error with Pi SL and Pi MC SL. Whenever I try to start the application loaded onto the Pi3 , the CodeSys IDE hangs for a minute and the Pi3 app will not start. On the Pi3 I executed : cat /tmp/codesyscontrol.log The Log indicates an exception........... 2020-06-19T09:27:38Z, 0x00000007, 8, 81, 1, #### Exception: EXCEPTION <task>BlkDrvUdp</task> <ip>0x20000</ip> <bp>0x70004</bp> <sp>0x768abe80</sp> ;**************************************************************** ;<loggername>/tmp/codesyscontrol.log</loggername>...