SMC Networks LECSN-T Series - 19.7.3.2 Communication Setting Objects

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19．EtherNet/IP COMMUNICATION
19.7.3.2 Communication Setting Objects
(1) Message Router object (Class ID: 02h)
This object distributes messages to object classes or object instances in a driver. No attribute or service
can be used with this object.
(2) Connection Manager Object (Class ID: 06h)
Ins ID
Attr ID
Access
Name
Data Type
1
1
Set
Open Requests
UINT
2
Open Format Rejects
3
Open Resource Rejects
4
Open Other Rejects
5
Close Requests
6
Close Format Rejects
7
Close Other Rejects
8
Connection Timeouts
Ins ID
Attr ID
Default
Range
Units
EEP-ROM
Parameter
1
1
0
0000h to FFFFh
number of times
Impossible
2
0
3
0
4
0
5
0
6
0
7
0
8
0
This object is used to establish an I/O connection or a dedicated connection when Explicit Message is
frequently used. The description of each Attribute is as follows.
Ins ID
Attr ID
Description
1
1
Number of Forward_Open service requests received
2
Number of Forward_Open service requests that have been rejected due to the incorrect format
3
Number of Forward_Open service requests that have been rejected due to insufficient resource
4
Number of Forward_Open service requests that have been rejected due to a reason other than the incorrect
format or insufficient resource
5
Number of Forward_Close service requests received
6
Number of Forward_Close service requests that have been rejected due to the incorrect format
7
Number of Forward_Close service requests that have been rejected due to a reason other than the incorrect
format
8
Total number of connection time-outs that have occurred in the connection controlled by this Connection
Manager
This instance supports the following services.
Service Code
Name
Description
01h
Get_Attributes_All
Reads the values of all the attributes.
0Eh
Get_Attribute_Single
Reads the value of the specified attribute.
10h
Set_Attribute_Single
Writes a value to the specified attribute.
4Eh
Forward_Close
Closes the connection.
54h
Forward_Open
Opens a connection with data size of up to input 509
bytes and output 505 bytes.
5Bh
Large_Forward_Open
Opens a connection with data size of up to 1448 bytes.