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2. Connection Information

2.1. Connection Sizes

Connection Instance Produced Consumed
I/O Messaging 4, 8, or 12 bytes 4, 8, or 12 bytes
Explicit Messaging 55 bytes 55 bytes
Notes
- For the Polled I/O connection, if the actual consumed data size is less than the connection instance’s
consumed_connection_size attribute, the consumed data will be ignored, but the connection will otherwise
produce normally. If the actual consumed data size is larger than the connection instance’s
consumed_connection_size attribute, the consumed data will be ignored and the connection will not
produce.
- For the Explicit Messaging connection, this is the maximum message length: shorter messages are also
acceptable.

2.2. Exterior overview

DeviceNet LED indicator
(Refer to Section 2.4)
MAC ID and
Baud rate
setting Dip switch
(Refer to Section 2.3)
DeviceNet connector