Advantech PCM-7130 Bedienungsanleitung PDF herunterladen (Seite 47)

35 Chapter 3

Figure 3.7: Display mode setting

3.2.3.4 WatchDog timer

It is important in industrial applications that the control systems are rarely

crashed, or are capable of self-reset if they are halted somehow. The

watchdog timer is therefore used in the PCM-7130 to provide automatic

reset. There is a timer inside the watchdog timer. The PCM-7130 should

clear the timer within a pre-set time interval periodically. If the timer was

not cleared, the timer would assume the system to be halted and generate

a reset. The watchdog timer in the PCM-7130 provides eight different

time intervals: 2 seconds, 5 seconds, 10 seconds, 30 seconds, 60 seconds,

2 minutes, 5 minutes and 10 minutes. Choose the appropriate time inter-

val, and then press "Enable" button to enable the watchdog function. The

"REBOOT" button provide the warm boot function to reboot the device.

Note: 1. VGA TFT LCD and CRT display is the default

setting of the PCM-7130. This will facilitate users

to develop AP or products if the LCD has not

been determined. However, it is recommend to

change the display mode because 8 bpp color

depth may not be appreciated for most users.

2. As new display mode is set, the PCM-7130

takes reset or reboot to activate new setting.

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Advantech PCM-7130 Bedienungsanleitung Seite 47