Adcon A720 Guia do Utilizador descarregar pdf (Página 43)

CHAPTER 2

Installation

2. Click Connect in the Sensors section (you can also right-click

a sensor and select Connect Sensors from the pop-up). The

window shown Figure 16 is displayed.From the left pane,

select the sensor you want to connect and click the right-

arrow button.

3. If you want to edit the name of a sensor already connected,

select the sensor, then click the edit button and perform the

editing.

4. Click OK when you are finished.

5. After connecting the sensors, confirm the changes by clicking

Update or by selecting File

Update.

SDI-12 Sensors

Adcon systems are also compatible with SDI-12 sensors. However,

the following limitations apply:

• SDI-12 sensors can be attached only to RTU models A723

and A733 by means of the special SDI-12 adapter (obtainable

from Adcon Telemetry GmbH).

• Only a maximum number of 20 values can be collected over

the SDI-12 bus; these values can be retrieved either all from

one sensor (multiple values sensors), or each one from a

different sensor, or any combination of the two.

• The A723 and A733’s firmware version must be 2.0 or greater.

• The A440 Wireless Modem’s firmware version must be 2.0 or

greater.

• The A840 Telemetry Gateway must have software version 3.0

or greater.

• SDI-12 sensor values are not readable via the serial interface

of the A840 or via the emulation software (emu3ap). In other

words, you cannot use SDI-12 sensors in addVANTAGE 3, but

only in addVANTAGE 4 Pro.

• If you use SDI-12 sensors on an RTU, the routing of such an

RTU is possible only via A733 RTUs; if you use A730MD RTUs

on such routes, data won’t be relayed.

To connect an SDI-12 sensor, proceed as follows:

1. In the Configurator window, expand the RTU tree so that you

can see the connector you want to attach a sensor to. If the

device selected is SDI-12 compatible, an SDI connector will

be visible in addition to the standard analog I/O connectors.

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Adcon A720 Guia do Utilizador Página 43