TwinCAT PLC - Error codes
Error type | Description |
---|---|
PLC compiler error | Maximum number of POUs (...) exceeded |
PLC compiler error | Out of global data memory ... |
Error POUs
For each function block one POU (process object unit) is created. 256 function blocks are available by default.

If libraries are integrated this value may be insufficient. In this case, the number of POUs should be increased.
To this end, open in PLC Control under Projects/Options...

...the controller settings.

Changing these settings will deactivate online changes.
Global memory error

2 x 16 kbyte of data are available by default. If large data quantities are to be used, this range should be increased. A maximum of 14 data segments are possible for the BX.

