When the device operates as sniffer, no configuration in the engineering tool of the used EtherNet/IP scanners (master) is necessary.

To configure ibaPDA, knowledge concerning the structure of the transferred user data is needed, basically the following information:

• Between which scanner and which adapter the data is transferred.

• Will the data be transfered from the scanner to the adapter (OUTPUT) or will it be transfered from the adapter to the scanner (INPUT)?

• Where (Byte offset) in the slot data the corresponding signal is saved and which data type is used.

A distinction must be made between (TCP) connections and (UDP) data streams. An EtherNet/IP connection usually consists of one connection and two data streams (one in each direction). The data streams are used for cyclic IO data exchange.

The following technical restrictions are to be taken into consideration:

• To detect the EtherNet/IP connection, the telegram traffic must be sniffed during connection setup (CPU start-up, cable reconnection). If this is not the case, only the running data streams are detected. In this case, it may be that the cyclic I/O data cannot always be clearly assigned to EtherNet/IP connections. Data acquisition is then not reasonably possible.

• A maximum of 1024 analog and 1024 digital signals from up to 64 bidirectional connections can be configured.

• Up to 1023 data streams and 511 connections can be displayed in the online diagnostics.