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.
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
|