Elgas DATCOM, Operating Instructions Manual

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11
Function Description
164
parameters using the device keypad. When setting parameters from the keypad, the list of items
to be edited is limited by the access level permitted.
11.6.2.1 Password Groups (Valid for ELGAS version 2, MODBUS, and CTR)
The passwords are divided into 5 groups. Users of the "Administrators" group have the highest
rights, the users of the "User 3" group have the lowest rights. Higher-level users have lower-level
users rights, plus some others. Up to 10 passwords can be used in each group (i.e., a total of 50
passwords are available). The passwords are identified by a three-digit numeric designation. The
length of each password is limited to a maximum of 6 characters. Users in all the groups can
change their own passwords. The group administrator (the user with the lowest ID in each group)
can change the passwords of other users in that group. The administrator of the "Administrators"
(ID = 801) group can change the passwords of the administrators of the other groups. According
to the communication protocol used, the following characters can be used in a password:
Communication
Protocol
Permitted characters Note
ELGAS ver.2 letters a-z, A-Z, digits 0 to 9 password length 1 to 6 characters
case-sensitive
CTR digits 0 to 9
(the device allows for entering letters,
which however are rejected by the
counterpart station)
password length must be 6
characters
(the device allows for entering
shorter password, which however
is rejected by the counterpart
station)
MODBUS digits 0 to 9 password length 1 to 6 characters
Table 32 Password Format
Password
Group
Password
IDs
Description
Administrators 801 to 810 When the metrology switch is set to ON, the metrological
properties of the device can be changed:
 Loading a new firmware using the "Loader"

Loading new MSP processor firmware
 Resetting metrological archives (settings archive, status
archive, gas composition archive)
 Transducer replacement, calibration of the corrector
 Creating or removing metrological quantities
 Changing the name or prefix of metrological quantities
i
Turning on password protection
 by entering a password with ID 801
Turning password protection off
 by deleting the password with ID 801.
By deleting the ID 801 password, the other passwords set in each group are
deactivated, but their settings are not lost. Once the password protection is
enabled, they become active again.