Diagnostics

Online diagnostics

The following objects are available for initial diagnostic in the CoE directory:

• 0xFA01:01: "Rx Packets" (arriving at EP6601-0002).
• 0xFA01:02: "Tx Packets" (outgoing from EP6601-0002).

The values can be read from the controller using PLC function blocks (FB_EcCoeSdoRead in TcEtherCAT.lib).

Overrun

If the EP6601-0002 receives more Ethernet frames than can be transmitted to the controller via EtherCAT, the telegrams are discarded.

Overrun case In the case of an overrun, the following measures can be taken to counteract this: Activating the Subscriber Filter in the EP6601-0002 concerned Increasing/slowing down the cycle time of the Publisher Suppressing temporarily Publisher transmission or modulo in the System Manager Reducing/accelerating the EtherCAT cycle time of the Subscriber, so that more data are fetched by the EP6601-0002