Digital Electronics Corporation Pro-Face PL-6900 Series, User Manual

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App-4
PL-6900 Series User Manual
Appendix
RAS, which stands for Reliability, Availability and Serviceability, is a device-level
monitoring function that provides a variety of features to improve the reliability of
your PL system.
Though the standard set of RAS features used will vary depending on the devices
used, the following features are used to provide Alarm Monitoring and External
Input Signal support.
Alarm Monitoring Power Voltage Alarm
Cooling Fan Alarm
Internal Temperature Alarm
Watchdog Timer Time Up
Mirror Disk Alarm
External Input Signal
Standard Signal Input (DIN 2 bit)
Remote Reset Input
Also, when either the one of the above mentioned alarms occurs, or an external
signal input is received, the following types of alarm processing output signals and
features are supported.
External Output Signal
Standard Signal Output (DOUT 1 bit)
Alarm Output (1 point)
Lamp Output (1 point)
Types of Processing (all
units)
LED Indicator (3-state display – 1 point)
Pop-up Message Output
Buzzer Output
System Shutdown
Furthermore, using the PL’s System Monitor feature (included in the PL’s software
utility disk), allows the easy setting and control (Enable/Disable) of the aforemen-
tioned Alarm Monitor and External Input Signals.
Last, the system monitor feature’s use of an Application Link Library (API-DLL)
allows it to also be used with other applications.
*1 When a Mirror Disk Alarm occurs and the standard RAS feature settings are used, the
alarm output is limited to the Mirror Disk unit’s LED indicator. (Alternately flashing orange
and green)
*2 The remote reset feature’s input can be either enabled or disabled, the alarm output setting
cannot be set to trigger a forced system reset.
*3 For System Monitor Feature details, refer to the accompanying Driver and Utility disk.
Chapter 6 - OS Setup
2 RAS Feature
1 PL’s RAS Features