Campbell-scientific AL200 ALERT2 Encoder, Modulator, and Sensor Interf Uživatelský manuál stáhnout pdf (Strana 15)

AL200 ALERT2 Encoder, Modulator, and Sensor Interface

3. Under Device Type, select AL200.

4. Click the browse button next to Communication Port and select the port

associated with the AL200.

5. Click OK.

6. Click Connect.

7. Specify the settings on each tab as described below for the desired mode.

When a value is shown in parentheses next to a setting, it is the

default values that should work in most cases. Do not change

these values, unless you are certain a change is required.

7.1.1 Stand-alone Device

Main

• Set the Operation Mode to Sensor Input Enabled (CS I/O

Disabled), ALERT Concentration on RS-232.

ComPort

These settings have no effect in stand-alone mode.

ALERT2

These settings will be unique to a particular station and to your network.

• Set the Station Source Address – This is a station ID number that

must be unique within the network. This is an integer between 0 and

65,501. A database of source addresses can be found at

www.alert2.org.

• Set the Frame Length – This is the total amount of time that all of the

stations in the network will report in. This is an integer with a

resolution of 500 ms between 500 and 43,200,000 (12 hours).

• Set the Slot Length – This is the maximum amount of time within the

frame that the station can report. It is an integer value between 500

and a maximum of the Frame Length.

• Set the Slot Offset – This is the amount of time into the frame that the

slot will occupy. For example, if your frame is 120,000 ms (2

minutes) and your slot offset is 60,000 ms, the slot time will begin 1

minute after the beginning of the frame.

• Set the Hop Limit – (None) – This is the maximum number of times a

remote transmission can be retransmitted by repeaters.

• Set the Path Service Enabled – (No) – When enabled, each device

that repeats a remote transmission will add its source address to the

NOTE

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Campbell-scientific AL200 ALERT2 Encoder, Modulator, and Sensor Interf Uživatelský manuál Strana 15