EAAM057608EN
GC250 Technical Manual 81
8.5
Access to programming mode can be controlled through 3 different PASSWORD levels, here
listed in priority order:
•
Maker password
•
System password
•
User password
Each parameter of the controller board is associated to a protection level (in documents [1]
this association is shown in the "ACC” column where “C” stands for Manufacturer, "I” for
Installer and "U” for the End User).
A parameter associated to the manufacturer level can be only modified using the manufacturer
password. A parameter associated to the installer level can be modified by the manufacturer
and the installer. A parameter associated to the end user level can be modified by the
manufacturer, the installer, and the end user .
The general rule says that the parameters are modifiable only when the controller is in
“OFF/RESET” mode.
The operator who has to modify a parameter, has first of all to let himself be recognised by the
controller as “manufacturer”, “installer” or “user” by entering the proper password in parameter
P.0000
(menu “1.1.1 - Authentication”, path “1. System\ 1.1 Security\ 1.1.1. Authentication”).
After this operation, he can modify the parameters, limited to those he can enter according to
his password level. The access code entered remains saved in P.0000 for about 10 minutes
since the end of programming. After this time, the code is automatically reset to zero and must
be re-entered to access programming again. ).
It is possible to customize the passwords through parameters P.0001 (manufacturer), P.0002
(installer) and P.0003
(end user), available in the menu “1.1.2 Password”, path “1 System\ 1.1
Security\
1.1.2 Password”. The “0” value for these parameters indicates not set password.
If a password gets lost, it is possible to reconfigure it by logging in with the higher-level
password. This is the reason why we recommend to set at least the “Manufacturer”
password (P.0001): actually, in case someone else sets up this password, or a lower
level one (even unwillingly) without providing information, no parameter modification
will be possible any more. On the contrary, if you know the “manufacturer” password,
it will be in any case possible to cancel or modify the other passwords. In case you lose
the “manufacturer password” it is necessary to contact SICES service centre.
The following examples show all combinations of passwords assignation.
Example 1
:
P.0001 =0
P.0002 =0
P.0003 =0
Any
operator is seen as a "manufacturer”, with no need of setting anything in P.0000.
Therefore all parameters, except for the special ones, can be changed by anyone (this is
the default mode).
Example 2:
P.0001 =0
P.0002 =0
P.0003 =UUU
No parameter is modifiable. When the user enters the “UUU” code in P.0000, he would be
considered “user”, but as no password is associated to the “installer” and the
“manufacturer”, the controller considers him as “manufacturer”. After entering this code, all
parameters, except for the special ones, can be modified.
Example 3:
P.0001=0
P.0002 =III
P.0003 =UUU
No parameter is modif
iable. When the user enters “UUU” in P.0000, he is considered “user”
and can modify only the parameters associated to “user”. If user enters “iii” the board
considers it “manufacturer” because there is no password for “manufacturer”. After entering
this code, all parameters, except for the special ones, can be modified.
Example 4:
P.0001=CCC P.0002 =III
P.0003 =UUU
