Eaton PowerXL DX-NET-DEVICENET, Manual

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4 Commissioning
4.6 Supported objects
34
DX-NET-DEVICENET 02/14 MN04012005ZEN www.eaton.com
Polled I/O connection
When a polled I/O connection is used, a conventional master/slave
relationship is established between a controller and a DeviceNet device.
Polled I/O connections are point-to-point connections between two nodes on
the bus. When using this type of connection, the master sends a poll request
to the slave, which in turn responds with a poll response.
Table 8: Instance 2: Polled I/O connection
13 Produced Connection Path
Length ro UINT
14 Produced Connection Path ro EPATH
15 Consumed Connection
Path Length ro UINT
16 Consumed Connection
Path ro EPATH
17 Production Inhibit Time ro UINT Minimum time between two
instances of data
18 Connection Timeout
Multiplier ro/rw UINT
Attribute
Id Attribute name Access
right
ro | rw
Data type Description
1 State ro USINT Connection status.
0: Non existent
1: Configuring
2: Waiting for connection ID
3: Established
4: Time out
2 Instance Type ro USINT 0001
hex
(I/O Connection)
3 Transport Class Trigger ro Byte Type of connection:
82
hex
: Server, Polled Class2
80
hex
: Server, COS/Cyclic,
Class 0, No Ack.
4 Produced Connection ID ro UINT FFF
hex
: Note consuming
(COS/Cyclic)
Other: CAN ID for transmission
5 Consumed Connection ID ro UINT
6 Initial Communication
Characteristics ro Byte 01
hex
: Polled
F1
hex
: COS/Cyclic, No Ack.
01
hex
: COS/COS/cyclic, Ack.
7 Produced Connection Size ro UINT The maximum number of bytes
that will be sent
0000
hex
: COS/Cyclic
others: Size of Write Process
Data (Polled)
Attribute
Id Attribute name Access
right
ro | rw
Data type Description