Temperature Monitoring/Display; Watchdog (Wd) - Siemens SIMATIC IPC477E PRO Operating Instructions Manual

Operating the device and device functions
6.4 Extended device functions
6.4.1.2

Temperature monitoring/display

Three temperature sensors monitor the temperature of the device at several positions:
● Processor temperature
● Temperature close to the RAM ICs/chips
● Temperature in proximity of the air inlet
A temperature error is triggered under these circumstances:
● The configured low threshold for the temperature has been violated.
● The configured high threshold for the temperature has been violated.
A temperature error causes the following reaction:
Reaction
The DiagBase or DiagMonitor software alerts the user.
The temperature error is retained in memory until temperatures have fallen below the
thresholds and it is reset by one of the following measures:
● Acknowledgment of the error message by the monitoring software
● Restart of the device
6.4.1.3

Watchdog (WD)

Configuration
You configure the watchdog with the DiagBase or DiagMonitor software.
Function
The watchdog is able to monitor system runtime and informs the user about the different
reactions that are triggered if the system does not respond to the watchdog within the
specified monitoring time.
A watchdog alarm is retained after a restart and is reset and logged by the DiagBase or
DiagMonitor software. The watchdog configuration is retained in the process.
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SIMATIC IPC477E PRO
Operating Instructions, 08/2017, A5E39912462-AA
Option
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