Campbell SAT ARGOS Manual do Utilizador descarregar pdf (Página 216)

ZENO

-3200 USER MANUAL

Coastal Environmental Systems (206) 682-6048

Page 208

 Use Conditional Start and Conditional Stop Data Output Records (refer to Section 10.6.9) to add

additional information to a regular message for an alarm message.

 Transmit a completely different output message for your alarm message.

 Log the alarm message.

If you are using a satellite communications link, there are fewer options available to you:

 If you are using a GOES transmitter, you are limited to transmitting either regular (self-timed)

messages OR alarm (random) messages ONLY. This is a limitation of the GOES transmitter, not the

ZENO

-3200.

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 The ARGOS transmitter does not support alarm (random) messages, only regular (self-timed)

messages.

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Any alarm message sent to the ARGOS transmitter would only be transmitted as part of

its regular schedule.

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Further, ARGOS messages are limited to 32 characters.

11.2.1. Transmitting Your Regular Output Message As An Alarm Message

Transmitting (and possibly logging) your regular output message as an alarm message is simply a matter

of setting up the correct process (or processes) that define the alarm condition, then following the

instructions in Section 11.3.

11.2.2. Using Conditional Message Fragments In An Alarm Message

Your regular output message may not contain sufficient information when an alarm condition arises. If

you need to transmit the regular output message information along with the alarm information when an

alarm condition arises, you can set up one or more conditional message fragments to be transmitted by

following the instructions in Section 10.6.9:

 Place all alarm information between two Data Output Records set up as Conditional Start and

Conditional Stop field types.

 Configure the Data Input (Line Item #4 in the Data Output Menu) in the Conditional Start Data

Output Record to reference the alarm state generated by your alarm condition process.

 If you need the alarm message to be transmitted immediately when the alarm condition is met (and

possibly logged), then you need to follow the instructions in Section 11.3. Otherwise, you can simply

have the regular output message transmit at its regular time with the addition of the conditional

message fragment containing the alarm information.

11.2.3. Transmitting A Unique Alarm Message

You may need to transmit completely different information when an alarm condition arises as opposed to

what you would transmit in a regular output message. for this procedure, you will need to use at least two

output messages in which one is designated as the regular output message and the other is designated the

alarm message.

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Refer to Section 6.7.

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Refer to Section 6.8.

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Unlike GOES satellites that sit in geo-synchronous orbits, the ARGOS system is installed on two polar-orbiting

satellites. This means that when an alarm condition occurs, there is a very high probability that no satellite will be

there to receive the alarm message when it occurs.

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