Display Attributes - Siemens SIMATIC NET Manual

Meaning of the Columns
Name
OPC ItemIDs
Value
Format
Type
Access
Quality
Time Stamp (UTC)
Write Result
Group
Client Handle
Server Handle
Error
17.9

Display Attributes

You can display the attributes of individual OPC items.
1. Select the OPCItemIDs of the variables whose attributes you want to display in the variable
display.
2. Open the Item menu and select the Properties menu command.
A dialog opens displaying the basic properties.
3. Click the Query Available Properties button.
A dialog opens in which all the properties are displayed.
Commissioning PC Stations - Manual and Quick Start
Release 5/2005
C79000-G8976-C156-07
Unique name of the OPC item.
Value of the variable displayed in the format set in the Format column.
Representation
For integers, you can select between the original format,
hexadecimal, or binary. The "Original" format for integers is decimal.
All values that are not integers are always displayed in the original
format (for example, string, date, floating point). It is not possible to
change the format of these data types.
Canonical data type of the OPC item.
Access rights for the OPC item. ( "R"= read-only, "W"= write-only,
"RW" = full access)
Qualifies the accuracy of the value. If the quality is "good", the value
was acquired with certainty.
Time at which the OPC Server last detected a change in the value.
The time stamp is displayed in UTC format (Universal Coordinated
Time). The UTC time corresponds to Greenwich Mean Time (GMT).
Result of the last write to this OPC item.
Name of the group containing this OPC item.
Handle of the OPC item assigned by the client.
A handle assigned by the server.
Error messages involving the use of the OPC item that cannot be
attributed to "Quality" or "Write Result".
Activity
17 OPC Scout
Meaning
247