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 (optional) |
A CIMPLICITY project name under which the reference is made. If the project is not specified, then the default project is assumed. |
|
DEVICE (required) |
Any valid CIMPLICITY device identifier. |
|
ADDR (required) |
A valid device address for the specified device. |
|
TYPE (optional) |
Any valid CIMPLICITY point type. If you do not use this keyword, the default is INT. |
|
SCAN (optional) |
Multiple of the device scan rate at which the data will be collected. If you do not use this keyword, the default is 1. |
|
OFFSET (optional) |
Bit offset for the address of BOOL, BYTE or WORD points. If you do not use this keyword, the default is 0. |
|
ACCESS (optional) |
Either READ or WRITE. If you do not use this keyword, the default is READ. |
|
ELEM (optional) |
The number of elements (for an array). If you do not use this keyword, the default is 1. |
|
ORIGIN (optional) |
The point's origin - use one of the following:
If you do not use this keyword, the default is DEV. |
|
|
CIMPLICITY OPC Server technical notes. |
DEV for a device point.