LEM EM4TII+ - Access Authorizations; OBIS Codes

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4.2.4 Access authorizations
The EM4TII+ user has two access levels via the data interface:
• The first level is the password level with read authorisation
• The second level is the service level with read and write authorisation
The password level enables the user to read data and parameters from the EM4TII+ using the login
password. This password level does not allow you to write parameters.
The authorized service user can also use a second password to access the service level (W5
password according to IEC 62056-21). This enables him to write certain parameters (refer to Table 4.4
- Obis codes).
Access authorisations
Read
(Data and parameters)
Write
(Parameters)
Password level
All (except PWD*)
Not allowed
Service level
Adjustable parameters
(*PWD→Definition of passwords)
Table 4.3: Access authorisations
4.2.5 OBIS codes
All data and parameters can be read out with any of both passwords, except the passwords
themselves.
For all write commands to the EM4TII+ the OBIS code must be given as 6-digit OBIS code (see table
below).
For all write commands the usage of a separate password (W5 password according to IEC 62056-21)
in addition to the obligatory login password is mandatory.