Then define a master data
point for this type (right-click on the DPT
and select Create master
data point from the context menu - more information
under Data point type, master
data point and data points).
Insert a PowerConfig ("Var: Description") at the root node of the
master DP. Insert at each element a Periphery-address PowerConfig
("OPC
input") and
a PowerConfig ("Fixed") having no dynamic
attributes and implementing automatic description of the data
point elements. In addition, add a PowerConfig for alert handling
("Fixed") to the malfunction
data point element.
Configure the created PowerConfigs
and sub-PowerConfigs at the master data point as you require.
The variable Description at the root node can be configured
at each data point if required, and is used for composing
the description for the data point elements - see point 6.
of these instructions). The configured description at the
leaf elements should be unique and might contain the name
of the data point element concerned (for example, "-
TrafficLights red", "-
TrafficLights yellow", etc.). The parameters set
for the periphery address obviously depend on the driver used
or the OPC server (the settings that can be made with the
configuration panel are listed in the specific drivers section
of this Online Help - for OPC see OPC
address panel). The parameters for alert handling at the
malfunction
element also need to be configured with the range text,
valid range and alert class (for example, "TrafficLights
OK" for TRUE
and "TrafficLights failed"
for FALSE, valid range would
be TRUE in this case, and
selection of 060_alert for the alert class).
Once you have set all the
parameters at the master data point, you then create a DP
in the PARA module. Right-click on the DPT
TrafficLights and select Create
data point. Enter the name of the data point (for example,
"TrafficLights_01")
in the dialog box that opens and click on OK.