318 AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B
System status: Status messages
Where are status messages generated?
Status messages are generated
• By the gas analyzer, i.e.
• The system controller (signal processing, calibration, system bus)
• The analyzer modules
• The pneumatic module
• The temperature and pressure regulators
• The I/O modules and external I/O devices
• By peripherals, for example
• The system cooler
• Other sample gas conditioning modules.
User-configured status messages
Status messages are generated by the gas analyzer and by peripherals.
Additionally, by configuring the Message generator function block, status
messages from the analyzer and peripherals can be linked into the status
message processing system. The Technical Information "Function Blocks –
Descriptions and configuration" contains complete information on the indi-
vidual function blocks.
Status message processing
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Peripheral
Status Message
Component
Module
Status Signal
System
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Screen
Log
LEDs
Digital
Outputs
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• Status messages are shown on the screen and recorded in the log.
• Status messages set a corresponding status signal (overall status or
individual status).
• Status signals are indicated using status LEDs and output via the sys-
tem controller digital outputs.
Status message display
The Status message softkey appears as soon as a status message is
generated. By pressing the softkey the user can recall the status message
summary and view status message details.
Logging status messages
Status messages are logged. Messages concerning a transient gas analyzer
state with no direct effect on measurements are not logged. Such messages
include
• "A password is active!"
• "This system is currently under remote control!"
• "Automatic calibration in progress."
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