Temperature Monitoring; Monitoring The Cfast Card With The S.m.a.r.t Function; Operating Hours Counter - Siemens SIMATIC ET 200SP Operating Instructions Manual

Functions
10.1 Monitoring functions
10.1.2

Temperature monitoring

Three temperature sensors monitor the temperature at different locations of the
CPU 1515SP PC2:
• Processor temperature
• Temperature in the vicinity of the RAM ICs/blocks
• Temperature of the basic module
If one of the temperature values exceeds the set temperature threshold, the temperature
monitoring triggers a temperature error. The temperature error activates the IPC DiagBase
and/or IPC DiagMonitor software.
The temperature error remains stored until the temperatures fall below the temperature
threshold again and it is reset using one of the following measures:
• Acknowledgment of the error message by the monitoring software
• Restart of the device
10.1.3

Monitoring the CFast card with the S.M.A.R.T function

The CFast card supports the S.M.A.R.T function (Self-Monitoring, Analysis and Reporting
Technology). This function helps avoid data loss.
Using special routines, SIMATIC IPC DiagBase requests a status report for the hard drive.
The SMART hard drive keeps a list of errors that occurred while reading or writing sectors.
When the number of errors exceeds a certain threshold, this is often an early warning of an
impending defect of the drive.
At the latest, this is also the time when you should create a backup of the drive and replace
the hard drive.
In this case, SMART would notice the rapid increase in the error rate and trigger an alarm.
Errors that originate, for example, in the electronics and lead to an immediate failure of the
hard drive, but cannot be recognized by SMART.
10.1.4

Operating hours counter

You can use an operating hours counter for a variety of applications:
• For calculating the operating time of the CPU
• For calculating the operating time of controlled equipment
You can find more information about the operating hours counter in the "Operating hours
counter" group in the "Diagnostics" folder of the Online and Diagnostics view in the TIA
Portal.
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CPU 1515SP PC2 (F/T/TF)
Operating Instructions, 03/2023, A5E42603425-AC