10-4
Chapter 10: Status Messages, Troubleshooting
42/24-10 EN Rev. 9
System Status: Status Signals
Overall Status or
Individual Status
The status signal is factory-configured to output as an overall or individual status
indicator (refer to “Configuring Status Signals” section, page 7-C-9).
Overall Status
If the gas analyzer is configured to output overall status, status messages are
issued as overall status indications.
Individual Status
The following table shows possible causes of individual status signals and how to
evaluate the values measured.
Status Signal
Cause
Evaluation of Measured Value
Error
The analyzer is in a state
that requires immediate user
intervention.
The value is invalid.
Maintenance
Required
The analyzer is in a state
that will soon require user
intervention.
The value is valid.
Maintenance
Mode
The gas analyzer is being
calibrated or serviced.
Discard the value as a process
measurement value.
Individual Status by
Analyzer Module or
Sample Component
In principle, the individual status signals apply to the entire gas analyzer (system
status).
However, by configuring the
Message input
function block, individual status
messages for each analyzer module or for each sample component can be output
separately via digital outputs (see Technical Bulletin 30/24-200 EN “AO2000
Function Blocks – Descriptions and Configuration” for details).
I/O board status messages are only reported as system status signals.
Status Indication
Gas analyzer status is indicated by means of status LEDs.
LED Status
Error
Overall or Individual “Error” Status
Maint
Individual “Maintenance Required” status
