Bit 2 - Previous Message(s) Lost

The Previous message(s) lost bit will be set when:

• The scanner attempts to buffer more than 100 messages, or 8000 characters;

• The next response to Send_with_Response includes receive data.

The scanner is capable of generating data faster than EtherNet/IP can request. The scanner can buffer a maximum of 100 messages, and a total of 8,000 characters. If the EtherNet/IP master cannot extract data from the scanner fast enough, messages will be lost.