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2-18 MS-Connect 210 User’s Manual
Input (T –>O) Assembly Object (Class 0x04, Instance 0x64)
Input (T –>O) Assembly Object (Class 0x04,
Instance 0x64)
The EtherNet/IP Assembly Object Instance 0x64 defines the Input data message that will
be sent from the Ethernet Port to the EtherNet/IP connection originator via an I/O message.
the input data buffer is 32 bytes (16 words) and is organized as follows:
The first word provides the number of bytes/characters stored in the serial output queue.
This value is identical to Class 101, Instance 1, Attribute 100. It can be used to throttle the
amount of data queued to the serial device so that the Ethernet Port’s 1K queue does not
overflow.
The second word provides the number of bytes/characters stored in the serial input queue.
This value is identical to Class 101, Instance 1, Attribute 101. It can be examined to deter-
mine when serial data needs to be read from the Ethernet Port.
The third word tells the amount of time in milliseconds (ms) since the last character was
received from the serial port.
Output (O –>T) Assembly Object (Class 0x04,
Instance 0x65)
The EtherNet/IP Assembly Object Instance 0x65 defines the output data message that will
be sent from the EtherNet/IP connection originator to the Ethernet Port via an I/O message.
The output data is one 16-bit word (UINT) and is currently reserved for future use. It
should be set to 0.
Configuration Assembly Object (Class 0x04,
Instance 0x80)
The Configuration Assembly Object is not implemented. However, some EtherNet/IP clients
require one. If this is the case, use Instance ID 0x80 with a data length of 0.
Service-Object Summary
16 bits
Number of bytes in
Serial Output Queue
16 bits
Number of bytes in
Serial Input Queue
16 bits
Time since last byte
received (ms)
. . .
Service Code Class ID Instance ID Attribute ID Description
0x0E / 0x10 101 (0x65) 1
100-115
(0x64 - 0x73)
Configuration
(Future)
0x0E / 0x10 /
0x45
104 (0x68) 1 110 (0x6A) Serial Interface
0x0E 4 100 (0x64) 3
Input Assembly
Object
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