Adesys SVM0000-I Podręcznik - Strona 12

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Adesys B.V. | Wateringen

4.4.

Notification of mains power failure

The SVM is equipped with a supercap. This gives the dialler the option of sending a few messages in the

event of a power failure. The associated notification message is sent to the first number in the call list

linked to the mains power failure. Any set acceptance time is ignored. This means that sufficient power is

present in the powercaps to execute the reports.

After the power fails, the following can be observed:

• The red LED (error) flashes 5x to indicate that the supply voltage has been lost;

• After a few seconds, the green LED (on/busy) flashes faster to indicate that the SMS message is being

sent;

• The green LED (on/busy) remains on. The SMS message has been sent;

• The notification appears on the mobile phone to which the SMS message has been sent; this message

can be structured as follows: LOCATION powerfailure Active;

• The red LED (error) continues to show the status of the mains power failure until this has been

recovered.

A mains power failure message always takes priority over an ongoing notification of a status change. After

notification of the mains power failure, any interrupted notification can be restarted. Notification of status

changes that have not yet been notified then continues. This priority arrangement applies for both Active

and Idle.

Import and export of settings

It is possible to export via SV-prog settings:

• for importing to the same type of detector;

• as a backup when settings are changed.

When importing to another detector it is important that it meets the following criteria:

• the device is of the same type: SVM2000-I to SVM2000-I

• the settings are of the same version:

• 1.3.7 and lower contains version 2

• 1.4.1 to 1.4.6 contains version 3

• 1.5.0 and higher contains version 4

• 1.6.0 and higher contains version 5

The SVM as Hayes modem

The SVM can be configured with modem emulation, with the SVM behaving like any standard analogue

modem. The basic set of AT commands thus results in the same response regardless of the selected

communication network. It can therefore be used for older PLCs based upon an old-fashioned modem.

6.1.

The basic AT-commands

In most cases, the SVM's basic set of AT commands offers all control options for setting up a modem

connection. An AT command always begins with the letters AT (abbreviation for 'attention'). This is

followed by a letter for the command, sometimes followed by a number as a parameter. The command

ends with a return, or enter. After receipt, the modem sends a response to indicate whether the command

has been carried out.

The SVM AT commands:

Control commando's

Control of connection, does not contain a command

ATI

Provides information such as type and version number of the modem (info)

Commands regarding response in the COM port

ATE

Determines whether commands typed in are also sent back to the user (Echo)

ATQ

Determines whether the modem gives feedback (Quiet)

ATV

Determines whether modem responses are given by means of legible text or numerical

codes (Verbal)

ATX

Determines whether modem gives extended or abbreviated responses (eXtended reply)

Commands relating to the modem connection

ATA

Start modem when this is called (Answer)

ATD

Start modem to start calling (Dial)

ATO

Switches back from command to modem mode (Online)

ATH

Cuts off any modem connection (Hangup)

AT\N

Determines behaviour of error checking during a modem connection

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