3ODQW:DWFK
Cod. Carel. +030221221 – rel. 1.0 dated 20/02/01
25
)RUPDWRIWKH606PHVVDJHV
The SMS messages are received by the cellular phone accompanied by the date and time of the message. The latter refers to the
moment when the network operator’s server receives the message. The effective delivery of the message to the recipient’s phone
depends on the traffic on the network (it may even be delayed by a number of hours).
The format of the messages is the following:
PW: “Installation name” “installation code” (“Number of active alarms”!) →
“Start alarm date and time” [ “Duration of the alarm hh:mm”]
“Alarm description”
,WHP 'HVFULSWLRQ
Installation name Alphanumeric name of the installation
Installation code Numeric identifier (address)
Number of active alarms As for the Fax, this is a counter that indicates the number of active alarms at the moment the
message is sent
Start alarm date, time Instant at which the alarm occurs
Duration of the alarm Duration of the alarm in the format hh:mm; if the duration exceeds 18 hours, the text [>18h] is
indicated
Alarm description The description of the alarm is in the same format used on the display and in the faxes, that is:
• in the case of an alarm generated by a peripheral
Alarm description = QQ³SHULSKHUDOQDPH´³DODUP´
Where:
QQ physical address of the peripheral
SHULSKHUDOQDPH name assigned to the peripheral by the user during configuration
DODUP name of alarm variable
• in the case of an internal event/alarm
PW: “alarm/event description”
&DOOWRWKHGDWDFHQWUH
The calls to the data centre are made by PlantWatch when the remote signalling conditions exist (see Chap. $ODUPPDQDJHPHQW).
The purpose of the call is to transfer the updated alarm log to the centre.
PlantWatch also calls the centre to downloadtheYDULDEOHVORJ. The latter call is made when the remaining space for saving the
variables log falls below 30% of the space available. If the call and the download operation are successful, PlantWatch considers
the free space as being 100%. If PlantWatch cannot perform the download before the space falls below 20%, a serious alarm is
generated, and this is signalled by fax and/or SMS and the activation of the alarm relay; a second alarm notifies the user when
the space reaches zero and the data not yet stored will be irreversibly lost.
The variable that indicates the space occupied can only be reset if the password sent by the remote PC allows its authorisation.
This ensures that any other computers making the call can download the log resident in PlantWatch without compromising the
continuity of the procedures for saving the logs to the centre’s PC.
All calls for other reasons from PlantWatch to the authorised centre and vice-versa include the downloading of the data and the
setting of the free space to 100%.
$FWLYDWLRQRIWKHUHOD\V
The relay is activated by PlantWatch when the remote signalling condition exists (see par.5. The configuration parameters allow
the relay activation logic to be modified between normally energised and normally de-energised. It is also possible to set the
relay activation time for single-location operation or alternatively choose fixed activation.
Pressing the “Alarm” button for more than 3 seconds deactivates the alarm relay.
To Next Page
Loading...
