WAGO 750-341, Руководство пользователя, Страница: 160 / 246

154 • EtherNet/IP (Ethernet/Industrial Protocol)
Object model
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
Instance 198 (C6
hex
) „Input Only“
This instance is used to establish a connection when no outputs are to be
addressed or when inputs, which are already being used in an exclusive owner
connection, are to be interrogated . The data length of this instance is always
zero. This instance can only be used in the "consumed path" (seen from the
slave device).
Instance 199 (C7
hex
)
This instance is used to establish a connection based on an existing exclusive
owner connection. The new connection also has the same transmission
parameters as the exclusive owner connection. When the exclusive owner
connection is cleared, this connection, too, is automatically cleared. The data
length of this instance is always zero. This instance can only be used in the
"consumed path" (from the point of view of the slave device).
Common Services
Service available
Service code
Class Instance
Service Name Description
0E hex yes yes Get_Attribute_Single Supplies contents of the appropriate attribute
10 hex no yes Set_Attribute_Single Modifies an attribute value
4.3.3.2.7 Port Class (F4
hex
)
Class
Attribute ID Access Name Data type Description Default value
1 Get Revision UINT Revision of this object 1 (0x0001)
2 Get Max
Instance UINT Max. number of instances 0x0001
3 Get Num
Instances UINT Number of current ports 0x0001
8 Get Entry Port UINT Instance of the port object where
the request arrived. 0x0001
9 Get All Ports Array of Struct
UINT
UINT Array with instance attributes 1
and 2 of all instances 0x0000
0x0000
0x0004
0x0002
Instance 1
Attribute
ID Access
NV
Name Data type Description Default value
1 Get V Port Type UINT - 0x0004
2 Get V
Port
Number
UINT
Cip Port number 0x0002
(EtherNet/IP)
UINT
Number of 16 bit words in the
following path 0x0002
3 Get V
Port
Object
Padded
EPATH Object, which manages this port 0x20 0xF5
0x24 0x01
4 Get V Port Name Short String Portname 0x00