OPC90 Server
5.2 Add
The following picture shows the available Add menu items:
Select “New Device” to add a new device to the database. A database must
ave at least one device definitioh n. The name given to the device becomes the
IU. Typically this channel is an RS232
elect “New Block” to add an OPC90 block to a device or in a device group.
PC90 blocks are given a name that typically identifies its purpose and becomes
art of the OPC tag name used by clients when accessing OPC data from
PC90. The block type defines what type of data to expect from the Bailey
ystem for the given block and the address at which it resides.
he “Multiply” selection allows bulk duplication of the last selected block to be
atabase. It has limited use in real world applications, most
first part of the OPC tag name used by clients when accessing a piece of OPC
data from OPC90. A device defines operational characteristics that OPC90 uses
when communicating with the physical Bailey interface, often generically called a
CIU (Computer Interface Unit). One of the most important communication
characteristics that must be considered is the physical PC communication
hannel that has been attached to the Cc
port that must be setup using the Edit->Ports menu item. For the INICI03
interface the communication channel could be RS232 or SCSI. When it is a
SCSI channel, no additional communication setup is required beyond selecting
the SCSI port that has been cabled to the INICI03 INICT03A module. See the
DEVICE block for more details.
Select “New Group” to defined a folder under a device in which collections of
other OPC90 groups and blocks can be configured. Groups allow data
organization within the OPC90 database. They are not required but if used the
name given to the group becomes part of the OPC tag name used by clients
hen accessing OPC data from OPC90. w
S
O
p
O
s
T
added to the d
typically used to automatically generate a series of output type blocks suitable for
OPC client programmatic generated output values.
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