Siemens SIMATIC HMI IPC677C User Manual

Functions
10.4 Fan monitoring
SIMATIC HMI IPC677C
Operating Instructions, 04/2013, A5E02722710-04
109
WD reactions
If the watchdog is not triggered again within the set time, the following reactions will be
triggered:
Response Option
WD acknowledgement None
Trigger a PC reset Selectable
The DiagBase or DiagMonitor software is enabled None
WD monitoring times (TWD)
The monitoring times can be set in increments of one second within a range from 3 to 255
seconds.
Note
The watchdog is retriggered if the monitoring time is changed at the active watchdog (that is
while the watchdog is running)!
10.4 Fan monitoring
The function monitors operation of the enclosure and power supply fans. When a fan fails,
the following reactions are triggered:
Response Option
The DiagBase or DiagMonitor software is enabled None
The fan fault is retained in memory until the cause of the fan failure has been rectified and
the error is reset by taking one of the following measures:
● Acknowledgment of the error message by the monitoring software
● Restart of the device

Siemens SIMATIC HMI IPC677C Specifications

General

Brand	Siemens
Model	SIMATIC HMI IPC677C
Category	Industrial PC
Language	English