Point by Address Item ID Syntax
Point by address Item IDs allow an OPC client to explicitly refer to device registers for devices that currently communicate with a CIMPLICITY project. A CIMPLICITY project point does not necessarily need to be configured.
Note:
Point by Address Item IDs do not appear during an OPC client browse session. These Items IDs must be manually entered in an OPC client application.
The Point by Address Item ID syntax is shown below where [ ]
indicates an optional keyword. Valid keywords (required and optional) are described below.
\\PROJECT\@DEVICE=xxx|ADDR=yyy|[TYPE=zzz]
Keyword/Field | Description | ||
PROJECT | Required |
A CIMPLICITY project name under which the reference is made.
Important: When using point by address for the item IDs used by an OPC Client, the project ID must be included.
|
|
DEVICE | Required | Any valid CIMPLICITY device identifier. | |
ADDR | Required | A valid device address for the specified device. | |
TYPE | Optional | Any valid CIMPLICITY point type. | |
Default |
INT
|
||
SCAN | Optional | Multiple of the device scan rate at which the data will be collected. | |
Default | 1 | ||
OFFSET | Optional | Bit offset for the address of BOOL, BYTE or WORD points | |
Default | 0 | ||
ACCESS | Optional | Either READ or WRITE. | |
Default |
READ
|
||
ELEM | Optional | The number of elements (for an array). | |
Default | 1 | ||
ORIGIN | Optional | The point's origin - use one of the following: | |
ORIGIN | Point Type | ||
DEV | Device . | ||
DIA | Diagnostic | ||
ALW | Ethernet Global Data | ||
Default |
DEV
|