Secutech Radio modules ST002003 Ficha De Dados
Códigos do produto
ST002003
Page 28
Security & Electronic Technologies GmbH
Monitoring the RF-status, alarm generation
Depending on the application it might be important to monitor the status of
the RF-connection and to generate an alarm indication in case of interrup-
tions.
Important: During interruptions of the RF-connection SECU-DATA xxxC
instruments freeze the latest transmitted value and keep them on the output.
The status of the RF-connection can be tested via relay contacts.
SECU-DATA xxxx incorporate a relay contact, a make contact, which is
closed as long as the connection is active. The rated switching capacity of
the contact is 30 V / 500 mA.
Hint
Also the instruments SECU-DATA xxxM located on the measurement side
are equipped with such a relay contact with the same functionality. Thus an
alarm indication can be realised on the measurement site too.
If you want to realise an alarm signal (e.g. by a lamp) on the controller site
make use of this contact (principle diagram):
the RF-connection and to generate an alarm indication in case of interrup-
tions.
Important: During interruptions of the RF-connection SECU-DATA xxxC
instruments freeze the latest transmitted value and keep them on the output.
The status of the RF-connection can be tested via relay contacts.
SECU-DATA xxxx incorporate a relay contact, a make contact, which is
closed as long as the connection is active. The rated switching capacity of
the contact is 30 V / 500 mA.
Hint
Also the instruments SECU-DATA xxxM located on the measurement side
are equipped with such a relay contact with the same functionality. Thus an
alarm indication can be realised on the measurement site too.
If you want to realise an alarm signal (e.g. by a lamp) on the controller site
make use of this contact (principle diagram):
SECU-DATA 42xM, 42xC, 142xC, 600M
Contact 6-7 is closed
as long as the RF-
connection is estab-
lished.
This circuitry provides
best reliability: if the
RF-connection is lost
or a power failure of
the SECU-DATA xxxx
occurred, the contact
opens and the alarm
lamp will be turned on
immediately.
Inverter relays can be
used also. Additional-
ly the contact function
can be configured.
as long as the RF-
connection is estab-
lished.
This circuitry provides
best reliability: if the
RF-connection is lost
or a power failure of
the SECU-DATA xxxx
occurred, the contact
opens and the alarm
lamp will be turned on
immediately.
Inverter relays can be
used also. Additional-
ly the contact function
can be configured.
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