BECKHOFF IPxxxx-B520 - Manual (Page 22)

Discrete Input Point Object
19 IPxxxx-B520
4 Discrete Input Point Object
Discrete Input Points The IPxxxx provides Discrete Input Point Objects to access the discrete
input channels data of the IPxxxx. For each discrete input point exits one
instance of the Discrete Input Point Object Class.
For a detailed description of the Discrete Input Point Object see
DeviceNet Specification Volume 2
Class Code: 8 (08hex)
Class Attributes
Attribute
ID
Access
Rule
Name Data
Type
Description Semantics of
Value
1 Get Revision UINT Revision of implementation 1
2 Get Max. Instance UINT Max. number of instances
Instance Attributes
Attribute
ID
Access
Rule
Name Data
Type
Description Semantics of
Value
3
(03hex)
Get Value BOOL Input Point Value 0: OFF
1: ON
4
(04hex)
Get Status BOOL Input Point Status 0: OK
1: alarm / error,
idle mode,
data not valid
Common Services
Service Code Service Name Description
14
(0Ehex)
Get_Attribute_Single Returns the contents of the specified
attribute