Insys GSM LOGO 4.2 Compact 11-02-01-03-04.001 Manuale Utente
Codici prodotto
11-02-01-03-04.001
INSYS GSM 4.2 LOGO!
Commisioning
Dezember 06
15
In all cases, changes in the monitored values must remain static until the polling
is repeated. This condition is satisfied in most applications (e.g., liquid level
monitoring systems or motor circuit breakers).
The monitoring function using INSYS GSM 4.2 LOGO! is primarily intended for
static signals and values.
If the utilized signal (e.g., pulses) does not conform to this requirement, it must be
fed to an ON or OFF delay or an RS flip-flop in the LOGO! control program.
Occurrence of Multiple Faults or Changes
If multiple changes occur within one polling interval, the corresponding messages
are transmitted in the order in which they occur in the PA buffer or PA-SMS, i.e.,
starting from I1 to I24 to outputs Q, bit memory M, etc., to analog bit memory
AM1 to AM6.
Polling of the PA buffer does not restart until all changes occurring during this
scan interval have been evaluated and transmitted as fault messages.
If a change occurs in another monitored value while a fault message is being
transmitted, the new fault message will be generated once the first alarm has
been transmitted and the next PA buffer poll operation has taken place. This will
only occur if the change is static over this time period.
are transmitted in the order in which they occur in the PA buffer or PA-SMS, i.e.,
starting from I1 to I24 to outputs Q, bit memory M, etc., to analog bit memory
AM1 to AM6.
Polling of the PA buffer does not restart until all changes occurring during this
scan interval have been evaluated and transmitted as fault messages.
If a change occurs in another monitored value while a fault message is being
transmitted, the new fault message will be generated once the first alarm has
been transmitted and the next PA buffer poll operation has taken place. This will
only occur if the change is static over this time period.
3.2.2 Periodic PA-SMS
In addition to value monitoring, it is also possible to receive the current states and
values of the LOGO! PA buffer at periodic intervals.
A periodic PA-SMS can be transmitted at hourly intervals ranging from 1 to 255
hours. After the specified time has elapsed, the PA buffer is read out and the
utilized values of the PA buffer are transmitted as a PA-SMS.
The LOGO! PA buffer scan is attempted up to three times, if necessary. “NO
SUCCESS” will be transmitted instead of the PA-SMS.
The timing of this SMS is deferred if any of the following functions are being
executed at that moment:
- Scan of login state and field strength (update of STATUS and SIGNAL LEDs),
values of the LOGO! PA buffer at periodic intervals.
A periodic PA-SMS can be transmitted at hourly intervals ranging from 1 to 255
hours. After the specified time has elapsed, the PA buffer is read out and the
utilized values of the PA buffer are transmitted as a PA-SMS.
The LOGO! PA buffer scan is attempted up to three times, if necessary. “NO
SUCCESS” will be transmitted instead of the PA-SMS.
The timing of this SMS is deferred if any of the following functions are being
executed at that moment:
- Scan of login state and field strength (update of STATUS and SIGNAL LEDs),
duration of approximately 5 s, interval of 60 s (can be disabled, but operation
of the two LEDs will no longer be possible)
of the two LEDs will no longer be possible)