Administration
The product uses wireless M-Bus mode T1, which means that it sends spontaneous data in one direction, from sensor to collector device.
The product supports two different encryption modes, unencrypted and encrypted mode. In encrypted mode, OMS encryption mode 5 is used along with an AES 128-bit key. In unencrypted mode, no data will be encrypted.
The product will automatically begin to transmit data after the activation has been completed. By default, a SND_NR telegram will be transmitted every 6th minute. The transmission interval is configurable in the setup menu of CMa10w. The table lists all the data included in the telegram (SND_NR).
Table 105. Slave to master
|
Byte index |
Data |
Description |
|---|---|---|
|
0 |
0xnn |
L-Field |
|
1 |
0x44 |
C-Field: SND_NR |
|
2..3 |
0x9615 |
Manufacturer “ELV” |
|
4..7 |
0xnnnnnnnn |
Identification number |
|
8 |
0xnn |
Version field |
|
9 |
0x1B |
Device type (Medium) = Room sensor |
|
10..11 |
0xnnnn |
CRC-field |
|
12 |
0x7A |
CI-Field (Short header) |
|
13 |
0xnn |
Access number |
|
14 |
0xnn |
Status |
|
15..16 |
0xnnnn |
Configuration word |
|
17..18 |
0x2f2f |
AES check (idle filler) |
|
19 |
0x02 |
Instantaneous temperature DIF |
|
20 |
0x65 |
Instantaneous temperature VIF, external temperature |
|
21..22 |
0xnnnn |
Instantaneous temperature x 100 In case of error the temperature will be set to 0. |
|
23 |
0x42 | 0x72 |
1-hour temperature rolling average DIF, storage number 1 0x42 = The value is available 0x72 = The value is not yet calculated |
|
24 |
0x65 |
1-hour temperature rolling average VIF, external temperature |
|
25..26 |
0xnnnn |
1-hour temperature rolling average x 100 This value is unavailable (0) until 1 hour has passed since power-on. During this first hour the value will be flagged as “value during error state”, DIF bits 5 and 4 = 1. This value is updated every 6th minute. The temperature data will be 0 in case of sensor error. See slave status byte in data header. |
|
27 |
0x82 | 0xb2 |
24-hour temperature rolling average DIF, storage number 2 0x82 = The value is available 0xb2 = The value is not yet calculated |
|
28 |
0x01 |
24-hour temperature rolling average DIFE |
|
29 |
0x65 |
24-hour temperature rolling average VIF, external temperature |
|
30..31 |
0xnnnn |
24-hour temperature rolling average x 100 This value is unavailable (0) until 24 hours has passed since power-on. During this period the value will be flagged as “value during error state”, DIF bits 5 and 4 = 1. This value is updated every hour. The temperature data will be 0 in case of sensor error. See slave status byte in data header. |
|
32 |
0x22 |
1-hour minimum temperature DIF |
|
33 |
0x65 |
1-hour minimum temperature VIF, external temperature |
|
34..35 |
0xnnnn |
1-hour minimum temperature x 100 In case of error the temperature will be set to 0. This is the lowest instantaneous temperature since last 1-hour period. |
|
36 |
0x12 |
1-hour maximum temperature DIF |
|
37 |
0x65 |
1-hour maximum temperature VIF, external temperature |
|
38..39 |
0xnnnn |
1-hour maximum temperature x 100 In case of error the temperature will be set to 0. This is the highest instantaneous temperature since last 1-hour period. |
|
40 |
0x62 |
24-hour minimum temperature DIF |
|
41 |
0x65 |
24-hour minimum temperature VIF, external temperature |
|
42..43 |
0xnnnn |
24-hour minimum temperature x 100 In case of error the temperature will be set to 0. This is the lowest instantaneous temperature since last 24-hour period. |
|
44 |
0x52 |
24-hour maximum temperature DIF |
|
45 |
0x65 |
24-hour maximum temperature VIF, external temperature |
|
46..47 |
0xnnnn |
24-hour maximum temperature x 100 In case of error the temperature will be set to 0. This is the highest instantaneous temperature since last 24-hour period. |
|
48 |
0x02 |
Instantaneous relative humidity DIF |
|
49 |
0xfb |
Instantaneous relative humidity VIF, extension table FB |
|
50 |
0x1a |
Instantaneous relative humidity VIFE |
|
51..52 |
0xnnnn |
Instantaneous relative humidity x 10 In case of error the relative humidity will be set to 0. |
|
53 |
0x42 | 0x72 |
1-hour humidity rolling average DIF, storage number 1 0x42 = The value is available 0x72 = The value is not yet calculated |
|
54 |
0xfb |
1-hour relative humidity VIF, extension table FB |
|
55 |
0x1a |
1-hour relative humidity VIFE |
|
56..57 |
0xnnnn |
1-hour relative humidity x 10 In case of error the relative humidity will be set to 0. |
|
58 |
0x82 | 0xb2 |
24-hour humidity rolling average DIF, storage number 2 0x82 = The value is available 0xb2 = The value is not yet calculated |
|
59 |
0x01 |
24-hour humidity rolling average DIFE |
|
60 |
0xfb |
24-hour relative humidity VIF, extension table FB |
|
61 |
0x1a |
24-hour relative humidity VIFE |
|
62..63 |
0xnnnn |
24-hour relative humidity x 10 In case of error the relative humidity will be set to 0. |
|
64 |
0x22 |
1-hour minimum relative humidity DIF |
|
65 |
0xfb |
1-hour minimum relative humidity VIF, extension table FB |
|
66 |
0x1a |
1-hour minimum relative humidity VIFE |
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