Trusted
TM
AN-T80012
Application Note
Plantguard and Trusted Software
The Plantguard and Trusted System Configuration Manager are identical programs. They are branded
and configured depending on an identity file. This also affects the SOE and Process Historian Collector
and the OPC Server configuration program, among others. If a workstation has both Trusted and
Plantguard software installed, or one is removed and the other loaded, this identity file needs to be
changed manually for proper operation. It is not removed on uninstalling software, because it is a
common reference file.
The workbench itself does not use the identity file, but keeps its own libraries and branding.
This document describes how to change the identity file.
Issue Record
Issue
Number
1 Feb 08 Nick Owens Pete Stock Gerry Creech Initial Issue
Date Revised by Technical
Check
Authorised by Modification
Issue 1 Feb 08 AN-T80012 1
Trusted
TM
AN-T80012 Plantguard and Trusted Software
File location
The identity file is ident32.dll, and is located in folder C:\Windows\System32.
Both Trusted and Plantguard versions have the same name. The properties of the two versions are
shown below (Trusted on the left and Plantguard on the right).
Trusted version is smaller Plantguard version is larger
Issue 1 Jan 08 AN-T80012 2
Trusted
TM
AN-T80012 Plantguard and Trusted Software
To replace one brand with another permanently
If a workstation with Plantguard software must be converted to be a Trusted workstation or vice versa:
• Uninstall all existing Plantguard or Trusted software
• Restart if requested
• Delete the ident32.dll file (restart if access is denied; the file is still in use)
• Install the new Plantguard or Trusted software
To use both brands together
If both versions are needed on a workstation, it is possible to replace the identity file. It cannot be
deleted whilst in use, but it can be renamed.
• Close all Trusted and Plantguard applications
• Rename the file to identify it as Trusted or Plantguard as appropriate
• Install the other branded software
• The file named ident32.dll will be active
In the example below, the Trusted identity file is active. The Plantguard identity file has been renamed
ident32p.dll. If Plantguard operation is necessary, rename the Trusted identity file (e.g. ident32t.dll) and
change the Plantguard filename to ident32.dll.
The SOE collector and system configuration tool are stand-alone applications, and multiple
installations in any location are possible; the identity file will control their operation. The Toolset will
install in c:\Trusted or c:\Plantgrd by default, and will only display applications and library elements
loaded into that location.
The OPC server (Windows Service versions) will only be able to use the first installed service, and so
proper parallel operation is not possible (e.g. the Trusted OPC configuration program may be
configuring the ‘PlantguardOPCServer’). A clean uninstall, restart and new install are necessary to
cleanly switch between OPC servers.
Issue 1 Jan 08 AN-T80012 3
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