GTW/EN CT/C40
Communication
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PACiS Gateway
7.2
OPC Standard layer
This layer provides a way to access (read/write) to a set of data sources. The OPC Client
connects to the OPC Server and communicates to it through the OPC interfaces. The OPC
Server object provides functionality to the OPC client to create and manipulate group
objects. OPC Group objects allow the OPC Client to manage the data it wants to access.
The following sections deals with these interfaces and how they are implemented in the
toolkit. For a complete reference of the OPC Data Access interfaces see OPC Data Access
Custom Interface Standard version 2.05A.
7.2.1 OPCServer
object
This is the only one COM object available from an OPC Client point of view. All the others
object will be created or accessed through the server. The set of interfaces provided by this
object includes:
- IOPCServer
- IOPCCommon
- IOPCBrowseServerAddressSpace
- IOPCItemProperties
- IOPCServerPublicGroups
- IOPCEventServer
- IConnectionPointContainer
IOPCServer
interface:
This is the main interface of an OPC server. This interface is used to manage the group of
an OPC server (add, remove, browse, get). This interface is also used to get the current
status of an OPC server.
IOPCommon
interface:
This interface is used to specify the localization of the CCOMOPCServer class. In the current
implementation of the class the only localization supported is the one of the machine the
sever is running on. This interface also enable the client to give its name to the server. It can
be useful to get a list of client from the toolkit.
IOPCBrowseServerAdressSpace interface:
This interface allows clients to get information about tags managed by servers.
Implementation lies on a COM object named CCOMOPCTagPtr. Each time a tag is created,
a CCOMOPCTagPtr is created and it keeps a reference on the tag. All the tag pointers are
linked together, either in a hierarchical way or in a flat way.
IOPCItemProperties interface:
This interface can be used by clients to browse the available properties associated with a tag
and to read the current values of theses properties.
IOPCServerPublicGroups interface:
This interface is used to create public groups. These groups can be share by many clients.
Standard group created by the AddGroup method of the IOPCServer interface is private to
the server which created it. With a public group many client can have access to the same
group of items.
IOPCEventServer interface:
This interface is used to manage the alarms and events functionality.
Summary of Contents for GTW/EN T/C40
Page 1: ...PACiS GTW Gateway GTW EN T C40 Version 4 5 Technical Guide ...
Page 2: ......
Page 4: ...GTW EN T C40 Technical Guide Page 2 2 PACiS GTW gateway BLANK PAGE ...
Page 5: ...Safety Handling GTW EN SA C40 PACiS GTW gateway SAFETY HANDLING ...
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Page 8: ...GTW EN SA C40 Safety Handling Page 2 8 PACiS GTW gateway BLANK PAGE ...
Page 14: ...GTW EN SA C40 Safety Handling Page 8 8 PACiS GTW gateway BLANK PAGE ...
Page 15: ...Technical Data GTW EN TD C40 PACiS GTW gateway TECHNICAL DATA ...
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Page 31: ...Introduction GTW EN IT C40 PACiS GTW Gateway INTRODUCTION ...
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Page 34: ...GTW EN IT C40 Introduction Page 2 8 PACiS GTW Gateway BLANK PAGE ...
Page 40: ...GTW EN IT C40 Introduction Page 8 8 PACiS GTW Gateway BLANK PAGE ...
Page 41: ...Hardware Description GTW EN HW C40 PACiS GTW gateway HARDWARE DESCRIPTION ...
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Page 44: ...GTW EN HW C40 Hardware Description Page 2 8 PACiS GTW gateway BLANK PAGE ...
Page 51: ...Connection GTW EN CO C40 PACiS Gateway CONNECTION ...
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Page 54: ...GTW EN CO C40 Connection Page 2 8 PACiS Gateway BLANK PAGE ...
Page 60: ...GTW EN CO C40 Connection Page 8 8 PACiS Gateway BLANK PAGE ...
Page 61: ...Installation GTW EN IN C40 PACiS Gateway INSTALLATION ...
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Page 64: ...GTW EN IN C40 Installation Page 2 30 PACiS Gateway BLANK PAGE ...
Page 82: ...GTW EN IN C40 Installation Page 20 30 PACiS Gateway Don t forget to click on the Apply button ...
Page 93: ...Human Interface GTW EN HI C40 PACiS GTW gateway HUMAN INTERFACE ...
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Page 96: ...GTW EN HI C40 Human Interface Page 2 12 PACiS GTW gateway BLANK PAGE ...
Page 106: ...GTW EN HI C40 Human Interface Page 12 12 PACiS GTW gateway BLANK PAGE ...
Page 107: ...Communication GTW EN CT C40 PACiS Gateway COMMUNICATION ...
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Page 172: ...GTW EN CT C40 Communication Page 64 64 PACiS Gateway BLANK PAGE ...
Page 173: ...Commissioning GTW EN CM C40 PACiS GTW gateway COMMISSIONING ...
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Page 176: ...GTW EN CM C40 Commissioning Page 2 4 PACiS GTW gateway BLANK PAGE ...
Page 179: ...Record Sheet GTW EN RS C40 PACiS GTW gateway RECORD SHEET ...
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Page 182: ...GTW EN RS C40 Record Sheet Page 2 6 PACiS GTW gateway BLANK PAGE ...
Page 187: ...Maintenance GTW EN MF C40 PACiS GTW gateway MAINTENANCE ...
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Page 192: ...GTW EN MF C40 Maintenance Page 4 68 PACiS GTW gateway BLANK PAGE ...
Page 256: ...GTW EN MF C40 Maintenance Page 68 68 PACiS GTW gateway BLANK PAGE ...
Page 257: ...Problem Analysis GTW EN PR C40 PACiS GTW gateway PROBLEM ANALYSIS ...
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Page 260: ...GTW EN PR C40 Problem Analysis Page 2 4 PACiS GTW gateway BLANK PAGE ...
Page 263: ...Functional Description GTW EN FT C40 PACiS Gateway FUNCTIONAL DESCRIPTION ...
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Page 266: ...GTW EN FT C40 Functional Description Page 2 12 PACiS GTW gateway BLANK PAGE ...
Page 276: ...GTW EN FT C40 Functional Description Page 12 12 PACiS GTW gateway BLANK PAGE ...
Page 277: ...Logical Diagram GTW EN LG C40 PACiS GTW gateway LOGICAL DIAGRAM ...
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Page 280: ...GTW EN LG C40 Logical Diagram Page 2 6 PACiS GTW gateway BLANK PAGE ...
Page 284: ...GTW EN LG C40 Logical Diagram Page 6 6 PACiS GTW gateway BLANK PAGE ...
Page 285: ...Glossary GTW EN LX C40 PACiS GTW gateway GLOSSARY ...
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Page 287: ...Glossary GTW EN LX C40 PACiS GTW gateway Page 1 10 CONTENT 1 INTRODUCTION 3 2 LEXICAL 4 ...
Page 288: ...GTW EN LX C40 Glossary Page 2 10 PACiS GTW gateway BLANK PAGE ...
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