
CVR–010
Installation Instructions
(continued to next page)
96
13.3.4.5.
Alarm–Related Output Data Sentences
(continued – 5/6)
13.3.4.5.4. Output Sentences for IEC 61162–1 Ed. 5 Alert Handling Protocol
(2/3)
・
$SDALF Alert Output Sentence
(2/2)
・
When the above alert is acknowledged (manually by pressing
), the sentence format
will change as in the example below.
Figure 13-12 Format of ALF Sentence with Acknowledged Alert
–
Example
$SDALF
,
1
,
1
,
4
,
101423
,
B
,
C
,
A
,
JMC
,
230
,
(continued to next line)
③
④
⑦
1
,
5
,
0
,
DEPTH BELOW KEEL
*
59
⑪
⑭
③
Sequential message identifier: 4
④
Time of last change: 10 :14 : 23
⑦
Alert state transition: A ( = active – acknowledged)
⑪
Revision counter: 5
⑭
Checksum: 59 hex
・
In addition to the above ALF sentence, the following two additional alert–related
sentences will be output:
-
$SDALC
Sentence:
Cyclic Alert List
-
$SDHBT
Sentence:
Heartbeat Supervision
・
An example format for each sentence is given below.
・
$SDALC Cyclic Alert List Sentences
(1/2)
- This sentence is output at least once every 30 seconds, regardless of whether either
of the alarms is active or not.
- When a single alert condition exists, a sentence like the following example format will
be output:
Figure 13-13 Format of ALC Sentence with Active Depth Alarm – Example
$SDALC
,
01
,
01
,
32
,
1
,
JMC
,
230
,
1
,
4
*
19 < CR > < LF >
①
②
③
④
⑤
⑥
⑦
⑧
⑨
①
Total number of sentences for this message: 01
②
Sentence number: 01
③
Sequential message identifier: 32
④
Number of alert entries: 1
⑤
Manufacturer mnemonic code: JMC
⑥
Alert identifier: 230 (= depth–below–keel alarm)
⑦
Alert instance: 1
⑧
Revision counter: 4
⑨
Checksum: 19 hex
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