CMe3100 DLMS Plugin User's Manual
CMe3100 DLMS Plugin User's Manual
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26
(
48
)
2022-02-23
Version 1.8
•
Security suite 0
•
Authentication: None, Low Level Security or High Level Security mode 5 (see
[1]
9.2.74)
•
Security policy: “None” or “Authenticated and encrypted” (see
[1]
9.2.7.2.3)
•
Server System title according to IDIS (see
[4]
6.1.1 and section
7.2.1
•
Client SAP: 1 (management client) or 16 (public client)
•
Server SAP: 1 (management logical device), 16..n (meter logical device)
7.2.1 System title
The system title is 8 bytes long and is coded according to IDIS (see [4] 6.1.1):
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
MC
MC
MC
T1
b
T2
b
SN
b
SN
b
SN
b
SN
b
MC
: Manufacturer Code according to FLAG Association as ASCII characters
T1
b
: IDIS Meter Device Type (Always set to 0)
T2
b
: IDIS Meter Function Type (Always set to 0)
SN
b
: Manufacturer specific serial number (28 bits, low nibble of byte 5 and byte 6..byte 8). Taken
from the gateway serial number and represented as a binary 28 bit integer with MSByte order,
right justified to byte 8.
The system title is built up from the logical device name of management logical device name.
Example:
Management logical device name (gateway logical device name):
ASCII characters: ELV000016000000
String hex representation: 0x
454C56303030303136303030303030
System title:
Byte array hex representation: 0x454C560000F42400
7.3
Security
There are three different authentication mechanisms in DLMS; No security authentication, Low Level
Security (LLS) authentication and High Level Security (HLS) authentication.
The authentication level is specified by the DLMS client when connecting to the Product.
7.3.1
No security (Lowest Level Security) authentication
The purpose of No security (Lowest Level Security) authentication is to allow the client to retrieve some
basic information from the server. Typically, this is topology information including the name and the
association view of the device.
This security mechanism is accepted only for the public client (id 16).
7.3.2
Low Level Security (LLS) authentication
When using LLS authentication the server requires that the client authenticates itself by supplying a
password that is known by the server.
