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Security for Operation
1.5
To perform control and monitoring of the system from the HMI (OWS/EWS screen),
security authentication with the login ID and a password is required. If the security
authentication fails, the operator cannot log into the system. The following 4 levels of
security are implemented as a standard.
View level (Security level 0)
Control level (Security level 1)
Engineering level (Security level 2)
System manager level (Security level 3)
Each user must belong to one of the 4 levels above.
A login ID is a string that includes numbers and must be unique within the system. A user
name can be set as a part of the login ID. The login ID, user name and the security level
are indicated on the event list as a login record. Up to 999 users can be registered in the
system.
The users can change their own password at anytime on the "System Setting" dialog.
(Refer to Section 3.5) The user management including the registration, deletion and new
password issuance and security level can be done by the person who has the security
level of the system manager.
When a user logs into the system and does not perform any operation on the HMI screen for
more than a pre-set auto logout time, the user is automatically forced to log out. Default setting
of auto logout time is 1 hour.
Table 1.5.1 shows example of the summary of security levels and the operations allowed
for each security level. Each security levels can be changed using "Security Setting Tool".
For the detail list, refer to the "Operation Manual Security Setting Tool".
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