![ABB SCU200 Скачать руководство пользователя страница 86](http://html1.mh-extra.com/html/abb/scu200/scu200_user-manual_3320180086.webp)
86
SCU200
INSITE ENERGY MANAGEMENT SYSTEM
• Wireless M-Bus encryption
Typically most of the meters sent their frames encrypted due to security reasons. INS-WM module allows
to store up to 64 individual keys for decryption data.
For management of security keys module use Modbus custom function requests:
0x70 – Add meter
This special function is implemented to store information in non-volatile device memory about meter
decryption key. Each Wireless M-Bus meter that send wireless data, have its own encryption key and
unique meter ID. So without these information, device cannot process received data.
This function should be used once with unique MFIELD and MID. Multiple calling this function doesn’t
have any effect – no overwriting existing key is performed. By remove key pointed by MFIELD and MID,
use 0x71 Remove meter.
Direction
Bytes
Comment
M → S
0x01
Modbus Id
0x70
Function code
MFIELD
MSB
manufacture ID
MFIELD
LSB
manufacture ID
MID
MSB
meter ID
MID
meter ID
MID
meter ID
MID
LSB
meter ID
KEY0, KEY1,
meter key
KEY2, KEY3
meter key
KEY4, KEY5
meter key
KEY6, KEY7
meter key
KEY8, KEY9
meter key
KEY10, KEY11
meter key
KEY12, KEY13
meter key
KEY14, KEY15
meter key
CRC
LSB
, CRC
MSB
CRC
S → M
0x01
Modbus Id
0x70
Function code
CRC
LSB
, CRC
MSB
CRC
0x71 – Remove meter
This function removes key pointed by MFIELD and MID if the key exists in device database.
If not exist, this function does nothing.
Direction
Bytes
Comment
M → S
Any
Modbus Id
0x71
Function code
MFIELD
MSB
manufacture ID
MFIELD
LSB
manufacture ID
MID
MSB
meter ID
MID
meter ID
MID
meter ID
MID
LSB
meter ID
CRC
LSB
, CRC
MSB
CRC
S → M
0x01
Modbus Id
0x71
Function code
CRC
LSB
, CRC
MSB
CRC
Содержание SCU200
Страница 1: ...SCU200 User manual 1 0 1 INSITE ENERGY MANAGEMENT SYSTEM SCU200 User manual ...
Страница 2: ......
Страница 77: ...77 SCU200 INSITE ENERGY MANAGEMENT SYSTEM ...