Siemens simatic ipc227e - Temperature Monitoring;Display; Watchdog (WD)

Commissioning the device and device functions
4.4 Advanced device functions
SIMATIC IPC227E
Operating Instructions, 11/2016, A5E35782395-AB
49
4.4.1.2
Temperature monitoring/display
Temperature monitoring
Three temperature sensors monitor the temperature of the device at several positions:
● Processor temperature
● Temperature in proximity to the RAM ICs/blocks
● Temperature of the basic module
A temperature error is triggered when one of the three temperature values exceeds the set
temperature threshold and the following reaction is initiated:
Reaction
Option
The DiagBase or DiagMonitor software is enabled
None
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
4.4.1.3
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.