Displaying Memory Consumption

In Control Expert you can monitor the I/O memory consumption by viewing the adapter properties. In the Project Browser, double-click Configuration > EIO Bus > Modicon M580 remote drop. Then right-click Modicon M580 remote drop and select Properties .

This is an example of an IO-Memory tab:

NOTE: Quantum 140CRA31200 adapter modules do not support FAST and AUX0/AUX1 tasks. BMECRA312•0 adpater modules do.

Exceeding EIO Limitations

Control Expert displays a detected error in the log window if one of these events occurs:

  • The size of the RIO drop memory for the MAST task exceeds 1400 input bytes or 1400 output bytes.

  • The size of the RIO drop memory for the FAST task exceeds 1400 input bytes or 1400 output bytes.

  • The size of the RIO drop memory for an AUX task exceeds 1400 input bytes or 1400 output bytes.

NOTE: Modicon M580 BMECRA312•0 adapter modules support FAST and AUX• tasks. Quantum 140CRA31200 adapter modules do not.