Specifications

PlantScape OPC Support
PlantScape Server and Client Configuration Guide 449
Using the OPC Server to Control Read/Write Access
By default anyone with an account on a Client computer which is set up to
communicate with the PlantScape OPC server has full read and write access to
the server database. If this is not desirable, these permissions can be configured
on a per-user basis on the server. To do this:
1 On the PlantScape Server, open up the registry and locate the key:
HKEY_LOCAL_MACHINE\SOFTWARE\Honeywell\MyTpsDomain\HciC
omponents\PlantScape HCI Server\MethodSecurity
Note the file names specified as value data for the following value names:
–OPCRead
–OPCWrite
The files specified as value data are the files used for read/write access
control. The file names can be changed if desired.
2 Use Explorer to locate (or create) these files in
\Hwiac\Security
Their content is not important.
3 Use Windows Explorer to set the Windows file permissions on these files.
OPC Server Param Name OPC Type OPC Access Enumerated?
Name VT-BSTR Read only
Area
VT-BSTR Read only
Description
VT-BSTR Read only
PointDetailDisplay
VT-BSTR
GroupDetailDisplay
VT-BSTR
AssociatedDisplay
VT-BSTR
Control Level
VT-I2
InstructionDisplay
VT-BSTR
plscpcg.book Page 449 Monday, May 28, 2001 10:11 AM