23 Security functions
23 Security functions
23.1 Status and Fatal Error messages
The status of the alarm and Fatal error register can be displayed on the LCD or readout through
the optical or electrical interface. The Alarm Register is intend to log the occurrence of any
alarms. This is a four bytes register. If any alarm occurs, the corresponding flag in alarm register
is set. All alarm flags in the alarm register remain active until the alarm registers are cleared.
23.1.1 Display of alarm register 1
OBIS code of the alarm register 1: 0-0:97.98.0
The bit assignment of the alarm register 1 is shown below
Bit
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Table 45: Alarm register 1
MCS301 meter - product Manual 1.25
Alarm Description
Clock Invalid
Battery Replace
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Program Memory Error
RAM Error
NV Memory Error
Measurement System Error
Watchdog Error
Fraud Attemp
Reserved
Reserved
M-bus Communica on Error Ch1
M-bus Communica on Error Ch2
M-bus Communica on Error Ch3
M-bus Communica on Error Ch4
M-bus Fraud A empt Ch1
M-bus Fraud A empt Ch2
M-bus Fraud A empt Ch3
M-bus Fraud A empt Ch4
Permanent Error M-bus Ch1
Permanent Error M-bus Ch2
Permanent Error M-bus Ch3
Permanent Error M-bus Ch4
Battery low on M-bus Ch1
Battery Low on M-bus Ch2
Battery Low on M-bus Ch3
Battery Low on M-bus Ch4
Page 105 of 142
MetCom Solutions GmbH
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