SAFETY MANUAL - Tuv-fs.com

SAFETY MANUAL
3.6.1.2 Composite Scan Time Estimation for the Plantguard TMR
System
The composite scan time for a Plantguard system represents the time required to
read the input data, solve the application logic, and write the output data. This
sequence is repeated cyclically for as long as the Plantguard system is executing
an application. For details of the scan time see the scan time calculation section of
the TMR Processor PD for the 8110 & 8110B module.
3.6.2 Diagnostic Access
The TMR Processor supports comprehensive diagnostic facilities. Some of these
facilities have the capability of modifying the system’s operation and are therefore
password protected, to provide access protection in addition to that afforded by
physical access to the system.
The password is defined in the DIAGNOSTICS_INTERFACE section of the
system.ini file, with the “supasswd” command. The password is encoded and is not
readily decodable from the system.ini text file.
A default password is implemented automatically, however it is
recommended that a specific password be defined within the system.ini file.
It is important that this password be made available only to personnel
requiring access to the additional diagnostic capabilities (typically only ICS
Triplex Technology Ltd. personnel). If this password is lost, there is no capability
of accessing these functions without reconfiguring the system
Doc No P8094 Page 52 of 67
Issue 14 September 2003