Installation and Operation Manual
X-DPT-DeviceNet-SLA5800-SLAMf-Series-RevB-PC-eng
Part Number: 541B200AAG
March, 2015
62
Section 5 - Detailed Configuration
Brooks DeviceNet PCs
Table 5-60 S-Analog Sensor Instance 1 Attributes (continued)
26
Safe Value
Specified by
Attrib. 3 & 4
Set
NV
The value that is indicated by
Pressure[6] if the Safe State[25]
is configured to “Use Safe Value”
28 Auto-zero
Status
BOOL
Get
V
Indicates the status of the
automatic nulling
0 = [default]
35 Pressure
Application
Instance
UINT Set
NV
Configures
which
Pressure
Application Instance is currently
active for this object.
See Note ‘Pressure
Application Instance’ below
99 Subclass UINT
Get
NV
Identifies a subset of additional
instance attributes, services, and
behaviors for the Sensor Object
The value of this attribute is
0 = No Subclass
5.7.1.1. Note: Data Type
The value of this attribute is limited to INT or REAL. This attribute can only be
set when the device is not in the Operational State of Executing. If any of the
attributes in this object use the attribute Data Type[3] to define their data type
and the attribute is the end point of an active I/O connection, then the access
rule for the attribute Data Type[3] becomes Get and thus cannot be set until
the I/O connection becomes inactive. Additionally, the inferred data type of
an Assembly object (see The “Inferred” Data Type) will modify this value if
the Assembly object has been assigned to an active I/O connection.
Example 1:
If the value of Pressure[6] is exchanged via the Polled I/O connection, Data
Type[3] cannot be modified until that Polled I/O Connection is terminated.
Example 2:
If Assembly instance 1 is assigned to the Polled I/O connection produce
path, the value of Data Type[3] will be set to INT when the Polled I/O
connection transitions to the Active state. When the Polled I/O connection is
terminated, the value of this attribute will remain INT. It will not return to the
value prior to commissioning the Polled I/O connection.
5.7.1.2. Note: Data Units
The value of this attribute is limited to the values specified in the Pressure
Units Table in Appendix C - Data Units. This attribute can only be set when
the device is not in the Operational State of Executing. See Example 1 above
in Note: Data Type.
