Siemens SIMATIC PCS 7 OSx User Manual

Trends 4-11SIMATIC PCS 7 OSx 4.1.2 Operator
4.3 Reading Disk S pace Information
Disk space can be determined in the following ways for all trend groups and
for the currently displayed trend:
• Maximum (worst case) amount of disk space available for historical
trend data. This serves as a checkpoint between the actual disk usage
for a particular group and the total amount of disk space available for
historical trend data.
• Actual amount of disk space used to store historical trend data.
• Amount of free disk space available to store historical trend data.
Always refe r to the
Free Space field when configuring historical trends
to ensure that disk space for that trend is available.
To calculate disk space usage, select the
Calculate Space... pushbuttononthe
Trend Configuration screen (Figure 4-7).
Figure 4-7 Trend Disk Space Usage Display

Siemens SIMATIC PCS 7 OSx Specifications

General

Brand	Siemens
Model	SIMATIC PCS 7 OSx
Category	Control Systems
Language	English