Specifications
Device Net
TM
101
(2) Class 0x05 Instance 2 attributes (Polled I/O)
Attribute No. Access Description Range Value
1Get
Connection status
0: Non-existent
1: Configuring
2: Waiting for connection ID
3: Established
4: Timed Out
5: Deferred Delete
0 to 5
2Get
Connection instance type
0: Explicit Messaging connection
1: Polled I/O connection
0,1 0
3Get
Transport Trigger Class
0x82: Server Transport Class 2
0 to 0xFF 0x82
4 Get Produced Connection ID 0 to 0xFFFF
5 Get Consumed Connection ID 0 to 0xFFFF
6Get
Initial Communication Characteristics
(Defines the sending and receiving message groups)
0x01: Sending Group 1 message,
Receiving Group 2 message
0 to 0xFF 0x01
7Get
Produced Connection Size (Note 1)
(Maximum amount of I/O data that may be sent)
0 to 0xFFFF 4
8Get
Consumed Connection Size (Note 1)
(Max. amount of I/O data that may be received)
0 to 0xFFFF 4
9 Get/Set Expected Packet Rate(EPR) 0 to 0xFFFF 0
12 Get
Watch dog operation
0: Transition to timed out
1: Auto Delete
2: Auto reset
3: Deferred Delete
0 to 3 0
13 Get Produced Connection Path Length 0 to 0xFFFF 3
0 to 0xFF 0x62
0 to 0xFF 0x3414 Get Produced Connection Path (Note 2)
0 to 0xFF 0x37
15 Get Consumed Connection Path Length 0 to 0xFFFF 3
0 to 0xFF 0x62
0 to 0xFF 0x3116 Get Consumed Connection Path (Note 2)
0 to 0xFF 0x35
Note 1. Depends on the communication data used. 4 for use of output instances 20, 21 and input instances 70,
71 or 6 for use of output instance 26 and input instance 76.
Note 2. As the Produced Connection Path and Consumed Connection Path, specify the application objects of the
data to be transferred. Their structures are as follows.
0x62 0xMM 0xNN
0x62 (=logical address)
0xMM 0xNN: Application object data. The I/O instance numbers (hexadecimal) represented in
ASCII.
Example: When output instance 21 and input instance 71 are used as communication data
(a) Produced Connection Path (send data)
Input instance 71 = 0x47
ASCII code: 4 = 0x34, 7 = 0x37
Hence, Produced Connection Path = 0x62 0x34 0x37
(b) Consumed Connection Path (receive data)
Output instance 21 = 0x15
ASCII code: 1 = 0x31, 5 = 0x35
Hence, Consumed Connection Path = 0x62 0x31 0x35
Note 3. For detailed definitions, refer to the DeviceNet specifications Vol. I 5-4.