EtherNet/IP Serial Interface (Class 0x68)

Data is sent and received through the Serial Interface using explicit messaging. "Send", "Get", and "Receive" are from the EIP master scanner perspective. That is "Send" is data transferred from the EIP master to the scanner. "Get" and "Receive" is data transferred from the scanner to the EIP master.

The host should issue a vendor specific service Send_with_Response (0x45) to vendor specific Object Class 104 (0x68), Instance 1, Attribute 106 (0x6A). This service includes a 16 byte header that specifies parameters for control of the serial interface.

Attribute ID (dec)	Access	Name	Data Type	Description
106	Send with Response	Serial Interface	Struct. of:
			UINT	Send length (0-470)
			UINT	Receive length (0-470)
			UINT	Receive timeout [ms]
			USINT [3]	Reserved
			USINT	Receive Request Flags
			USINT	Receive Response Flags
			USINT [5]	Reserved
			USINT [0-470]	Serial Data

UINT = unsigned 16 integer

USINT = unsigned 8 bit integer

All UINTs are sent little endian with the least significant byte, or USINT, sent first, followed by the most significant byte.