Siemens SIMATIC IPC547E, Руководство по эксплуатации

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Expanded device functions
5.1 Monitoring functions
SIMATIC IPC547E
Operating Instructions, 02/2014, A5E32317120-AB
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5.1.2 Fan monitoring
The operation of the front, CPU and power supply fans is monitored.
If a fan fails, the following reactions are triggered:
● The "FAN" status display lights up red.
● If the SIMATIC monitoring software is installed, a fan alarm is output.
The fan error remains stored until the cause has been rectified. You can reset the error
message with one of the following measures:
● Acknowledge error message with SIMATIC IPC DiagBase or SIMATIC IPC DiagMonitor
● Short-term disconnection of the device from the power supply
● Shut down device
● Restart the device
5.1.3 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.
Watchdog reactions
The following reactions can occur if the watchdog is not addressed within the set time:
Option Reaction
Reset on Executes a hardware reset when the watchdog expires
Reset off Executes no action when the watchdog expires
Restart Restarts the operating system when the watchdog expires
Shutdown Shuts down the operating system when the watchdog expires
NOTICE
"Reset on" option
The "Reset on" option immediately triggers a hardware reset that may result in loss of data
under Windows.