Eaton EASY222-DN, User Manual

Page: 43 / 284

Object model
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09/10 MN05013007Z-EN
Service code
The easy object instance supports the following services.
Table 5: Service code
4 Read/
Write Outputs –
Receive Data The DeviceNet bus transfers the data to
easy. The easy inputs R1 to R16 must be
used for this function. The structure of
these 3 bytes is described in detail under
Section “Output data: mode, R1 – R16”,
page 51. 3
5 Read/
Write Predefined
Outputs This attribute is used to predefine the
output data (R data) that the EASY222-DN
device indicates on power up. The struc-
ture of these 3 bytes is described in detail
under Section “Output data: mode, R1 –
R16”, page 51. 3
Attribute
ID Access Name Description Size
[byte]
Service code
value Service name Description
0E
hex
Get_Attribute_Single This service can be used to fetch the value of a selected
attribute from the communication module.
10
hex
Set_Attribute_Single This service can be used to set a selected attribute in the
device.
32
hex
Extended access
1)
This service can be used to address the supplementary
parameters
1)
of the control relay:
1) Additional parameters are “Time”, “Image data” and “Function block”. Addressing of the param-
eters is easy specific and is described in chapters 5 – 7 in detail.
Extended access is implemented via explicit message transfer. This transfer protocol allows the
exchange of control data. Further information about the transfer protocol can be found in Section
“DeviceNet Communication profile” on page 41.