Argus Radar - SERIAL INTERFACE SPECIFICATIONS
988-10187-004 2.35
NOTE 1
The first field specifies the total number of sentences used for a message,
minimum value 1. The second field identifies the order of this sentence in the
message, minimum value 1. These cannot be null fields.
NOTE 2
The sequential message identifier relates all sentences that belong to a
group of multiple sentences (i.e. message). Multiple sentences (see Note 1)
with the same sequential message identifier, make up one message.
NOTE 3
Contains the number of alert entries transported within this sentence.
NOTE 4
Alert entry 0 – n: Each alert entry consists of four fields:
Manufacturer Identifier (see ALF Manufacturer Identifier);
Alert Identifier (see ALF Alert Identifier);
Alert instance (see ALF Alert instance);
Revision Counter (see ALF Revision Counter).
Each entry identifies a certain alert with a certain state. It is not allowed that
an alert entry is split between two ALC sentences.
ALF – Alert sentence
This sentence is used to report an alert condition and the alert state of a device. An ALF
message shall be published for an alert each time the alert information in this sentence
changes and on alert request (see Clause K.2).
To transmit additional alert description text (see Note 12), optionally a second ALF sentence
may be transmitted.
$$--ALF, x, x, x, hhmmss.ss, a, a, a, aaa, x.x, x.x, x.x, x, c---c*hh <CR><LF>
Alert text (see Note 12)
Escalation counter, 0 to 9 (see Note 11)
Revision counter, 1 to 99 (see Note 10)
Alert instance, 1 to 999999 (see Note 9)
Alert identifier (see Note 8)
Manufacturer mnemonic code (see Note 7)
Alert state, A, S, N, O, U or V (see Note 6)
Alert priority, E, A, W or C (see Note 5)
Alert category, A, B or C (see Note 4)
Time of last change (see Note 3)
Sequential message identifier, 0 to 9 (see Note 2)
Sentence number, 1 to 2 (see Note 1)
Total number of ALF sentences for this message, 1 to 2 (see Note 1)
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