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OMRON
To monitor and change the value of a point in runtime, select a point from the Point Name: field.
The Filter Options: field and settings refines the points listed in the Point Name: field. Select the
Get Value pushbutton to retrieve the current value of the selected point. Specify a new point value in
the Point Value/Text: field and click the Set Value pushbutton. The Diagnostics button shows
details including communications statistics, useful for diagnosing communication problems. Note this
button is only available when a user with 'Designer' privileges is logged in. Select the Close
pushbutton to complete the operation.
Optimisation of PLC Communications
PLC communication speeds can be increased by creating "array" points which contain several
elements of the same type, rather than creating a large number of individual points. For instance, the
time taken to update an array point containing 50 elements are quicker than the time taken to update
50 individual points.
Creation of an "Array" Point
An "array" point can be created by specifying a value greater than 1 in the Elements: field of the
Setup PLC Connection dialog. The Data Location field specifies the memory address from which the
array of data begins.
Note:
Accessing Elements of an "Array" Point
Direct access to array points can be achieved by applying a subscript to the pointname, e.g.
pointname[index]. For more information refer to the CX-Supervisor Script Language Reference
Manual.
Point Import
To import PLC points from other applications, click the Import PLC Points button from the
toolbar. This results in the Import PLC Points From Another CX-Server Project dialog being
displayed.
The Point Import tool can be used to import point information into the CX-Supervisor project that has
already been configured. The symbol name, symbol type and PLC address is imported from the
CDM file generated by other applications.
The CDM file can be generated from CX-Programmer by linking the project to the CDM file. The
CDM file can also be generated by exporting from a SYSWIN project to a CDM file. Refer to the
documentation supplied with the package for information on how to export or link the data to the
CDM file.
Release 2.0
Elements of an array point are located at consecutive addresses after the address
specified in the Data Location field.
CHAPTER 3 – Points
Page 37
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