Table of Contents
Advertisement
APPENDIX F – Obsolete Features
chan = DDEInitiate("SCS", "Point")
If chan <> 0 Then
'Request "Array1" from CX-Supervisor and store in a row starting
at R1C1
Range(Cells(1,1), Cells(1,3)) = DDERequest(chan, "Array1")
'Request "Array2" from CX-Supervisor and store in a column
starting at R2C1
Range(Cells(2,1), Cells(4,1)) = DDERequest(chan, "Array2:col")
'Request elements [2] and [3] from "Array2" and store in R3C1 &
End If
End Sub
OLE Automation
OLE Automation provides a mechanism whereby one application can control another. In order to
access a CX-Supervisor points value via OLE Automation, it must be given either OLE Read or OLE
Write access. This can be achieved by checking the appropriate box in the Advanced Point Settings
dialog when the point is created or modified.
Note:
CX-Supervisor exposes the following Runtime functions via OLE2 Automation:
♦
SetValue(stringPointName,Value). Enables any point with OLE Read/Write access to be
modified (value may be Boolean, integer, long or string).
♦
GetValue(stringPointName,&Value). Enables any point with OLE Read access to be monitored
(value may be Boolean, integer, long or string).
♦
QueryCount(). Returns the total number of points in the CX-Supervisor database.
♦
QueryId(stringPointName), Returns the WORD id of a given point name. The id is an integer in
the range between 1 and the total number of points in the CX-Supervisor database.
♦
QueryOLE(wordID). Returns the Read/Write access rights of a point as an integer. 0 represents
no access type; 1 represents Read Only; 2 represents Read/Write; 3 represents an invalid access
type.
♦
QueryType(wordID). Returns the points data type as an integer from a given id. 0 represents a
void datatype; 1 represents a digital datatype; 2 represents an integer datatype; 3 represents a real
datatype; 4 represents a text datatype; 5 represents an invalid datatype.
QueryName(wordID). Returns the points name string from a given identity. CX-Supervisor provides OLE
Automation helper routines and code examples in the OLE2AUTO subdirectory.
OLE2AUTO.WRI in that subdirectory for more information.
Page 320
'R3C2
'The '[ ]' or '.' format can be used to delimit the array index
Cells(3,1) = DDERequest(chan, "Array2[2]")
Cells(3,2) = DDERequest(chan, "Array2.3")
All CX-Supervisor System points are given OLE2 read access by default.
OMRON
Refer to the file
Release 2.0
Advertisement
Table of Contents
