LEYBOLD DeviceNet ITR 200 D - S-Analog Sensor Object; Class Attributes

Object Structure
17200138_002_C0 – (2016-10) –
 Leybold
17
2.4 S-Analog Sensor Object
Class Code 31
h
= 49
d
2.4.1 Class Attributes
Attr.
ID
Access
rule
Name DeviceNet
data type
Description of attribute Semantics of
values
1 Get Revision UINT Revision of this object
Note: All class definitions are
required to include this class
attribute.
The current
value assigned
to this attribute
is one (01).
2 Get Max
Instance
UINT Maximum instance number of an
object currently created in this
class level of the device.
The largest in-
stance number
of a created
object at this
class hierarchy
level.
32
1)
Get Class
Level
Status
Extension
USINT Indicates whether all instances
measure above or below its
maximum or minimum measure-
ment range
Bit 0:
Reading Invalid
Bit 1:
Overrange
Exceeded
Bit 2:
Underrange
94 Get Active
Value
Specified
by Data
Type
Is used by assemblies to pro-
duce this class-level attribute,
instead of the Value (Attribute ID
6) of the S-Analog Sensor
Instances.
95 Get Active
Instance
Number
UINT Identifies the object instance
that is providing the Value which
is copied into the Active Value
for all input Assemblies and the
Alarm/Warning Exception De-
tails for the S-Device Supervisor
object.
→ Behavior section.
Default = 1
96 Get Number
of
Gauges
USINT Identifies the number of gauge
instances present in the device.
2
99 Get Subclass UINT Identifies a subset of additional
class attributes, services and
behaviors.
1
≙ Instance
Selector
1)
This attribute is not part of the actual S-Analog Sensor Specificiation, but is at this time in
preparation to be implemented as shown. Changes may be possible until the new speci-
fication is published.
Assemblies or connections may produce this class-level attribute, instead of the
Value (Attribute ID 6) of the active S-Analog Sensor instance. The S-Analog Sen-
sor class-level attribute Active Instance Number identifies the object instance that
is currently active and providing the Value to the Active Value class-level attribute
which is, in turn, produced by the input assemblies that have Active Value as a
member.
ID 94 Active Value