Datasheet

INSYS GSM 4.2 LOGO! HSComm
Dezember 06 41
5.8.4 Monitoring of Values
The “Monitoring of Values” function is activated by selecting the “Alarm if value is
changed” check box.
The displayed message can then be
confirmed with “OK.” Meaning: When
monitoring of values is active, alarm
input 2 of the device is no longer
available because the message
memory must be reserved for monitoring of values. If more than 10 values are
monitored, alarm input 1 is also disabled, and a message to that effect appears.
The timing of the scan intervals
(i.e., the update cycle between
INSYS GSM 4.2 and LOGO!) is
specified in the “Polling Cycle”
window.
The timeout setting specifies the
pause before the next scan
interval if the connection between
INSYS GSM 4.2 and LOGO! has
been interrupted. This pause is
necessary because a connection
elsewhere (e.g., for parameter
assignment) would not be possible
if the scan cycles of the INSYS GSM
4.2 LOGO! remained constant.
The message text is prefixed to each fault message transmitted when a value is
changed (not if the fault message is transmitted as a PA-SMS)