Omron CX-Supervisor, Руководство пользователя

Страница: 251 / 334

Using CX-Supervisor with OPC Servers SECTION 17 Using CX-Supervisor as an OPC
250
Groups : - Use the Add, Edit and Delete buttons to show the Group
Attributes dialog box and update the list of groups. For identification
purposes groups should be given logical names. The defaults are Group1,
Group2 etc.
i) GROUP ATTRIBUTES
Name : - This is the name of the selected group. If you are editing an
existing group name or creating a new one the current or default name is
overwritten. The default name for new groups are Group1, Group2 etc.
Update Rate : - This is the rate at which the Items (data points) in the
group will be interrogated and new data entered if it is a readout, or read
from if it's a control. Enter the rate as a numerical value and select the
units from the drop down list. The minimum value is 100msec; the
maximum is 99999Sec i.e. over 27 hours.
Active On Startup : - Checking this option will make the Group active
when the OPC server is started. This means the items contained within
will be able to read and write data. The default is checked.
(C) ITEMS TAB
The Items within the selected group are listed. Items are data points of
information stored in the OPC Server. The Item Attributes dialog box can
be used to add or edit the items.
Note: This dialog box cannot be opened until at least one group is added.
i) ITEM ATTRIBUTES
The Item Attributes dialog box enables you to define the attributes of each
Item (data point) in the selected group.
Name : - This is the client name for an Item i.e. a point of data.
Note: This dialog box cannot be opened until a valid project file exists in which
to create the groups.