Siemens U3585-J-Z125-8-76 1, SM2 monitoring system manual 155

SM2 operation Statements for nonprivileged users

A3 Monitoring cycle shorter than output cycle

Monitored data is lost because the central buffer of the monitoring task is cleared faster than the data is output during the output cycle.

Zeit	Meßintervalle	Ausgabe-
		intervalle

BControlled mode

If the user does not succeed in having all the reports of a monitoring cycle output before the central buffer is filled again by the monitoring tasks, some monitoring cycles will be lost. When a report is requested again, the first report of the new monitoring cycle is output.

Note

The ACTIVITY, CHANNEL, and DEVICE reports are requested in this example.

The data of the monitoring cycles marked with * was overwritten in the central buffer before the user requested all the reports of the monitoring cycle shown first.

Zeit Meßintervalle

*

REPORTS:

ACTIVITY

+

CHANNEL +

DEVICE

ACTIVITY

+

+

U3585-J-Z125-8-76 155