System Software Function - EDAN M3 Service Manual

It indicates software system inner the frame above, on the left of frame is software system input,
and on right is software system output; parameter measuring module exchanges data with
software system by serial ports, while user communicates with system by keyboard; among the
output devices, recorder and alarm devices receive data via serial ports, the analogue output
apparatus is MBUS, screen and network controller are controlled directly by CPU.

2.3.2 System Software Function

No. Task name
1 System initialization
Parameter
process
2
Timing information
3
display
Module and interface
4
transform task
User commend and
5
interface processing
6 System monitor
7 Recorder task
Parameter
8
processing task
9 Watchdog task
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System initialization task
data Parameter data analysis and processing, result
storage task
Parameter waveform data analysis
Accomplish timing display fresh function
Waveform and parameter interface transform
task
Processing user key information and displaying
user interface
System monitor, voltage monitor, battery
management task
Accomplish output all the records
Accomplish every commend and response
processing of relative parameters
Accomplish system watchdog management
task
Table2-1 System Task Table
- 20 -
Task function Perform cycle
Once after
POST
Real-time data
processing
Once per
second
Interface
change task
With key task
Once per
second
Have record
task
Real-time
processing
Once per
second