Operating instructions

SEA M300USERSGUIDE
SERVICEANDTROUBLESHOOTING  204
5. Run the M300 and store the binary data to a file.
6. Using the RawView Utility to check if the ASCII data is being acquired from the M300, specify
the correct tag number in the filter text box, switch to ASCII display mode (‘A’ Button), and click
on the signed/unsigned button (+/-). If the data is there, you can go to the next step, otherwise,
check or change Para1, and/or the acquisition type.
7. Now that you have verified data coming into the system, add this formula to the fml.300 table:
“SerialData” “” F2000 S[300] A2000 assuming that tag number is 2000, with less than
300 characters for the data size.
8. Ensure you have the correct trigger before the formula to get the serial data. If the data is in the
sync buffer, use a sync trigger, otherwise use the appropriate trigger. For example, Trigger =
“SerialASCII” 20 tracpak “Never” Never None
9. Check the formula for the data in a Formula Watch and Alter Window. If the data is there, then
you can add more formulas and displays. If the data is not there, then check the trigger to make
sure you have the correct settings.
HARDDRIVETROUBLESHOOTING
If there is hard drive problem, the following steps will verify the drive integrity by checking for bad
blocks and ensuring the file system integrity or restoring it if compromised in some way. These two
steps can eliminate a host of minor problems and malfunctions.
Note: Someofthefollowingstepscanbeverytimeconsu ming. Ensurethatyoudonotneedtousethehard
driveforat least24hoursbeforerunningthesesteps.Theuser shouldalsoensurethatthereisareli abl e
supplyofpower.Itisthereforerecommendedthat thesetestsbedone
usinggroundpowerratherthan
aircraftorotherpowersources.
1. Check the integrity of the QNX file system by using the following, as root: chkfsys -u / This
should be done at least once per week or after an improper shutdown.
2. To check the entire drive for bad blocks, type
dcheck -m -r -V -e /dev/diskName at the
command prompt, where ‘diskName’ is the drive that is to be checked. For example, to check the
main hard drive you would use
dcheck -m -r -V -e /dev/hd0 This can be done if you are
suspecting a problem with bad blocks on the hard drive (which is very rare).
SERVICE
If everything is working okay and your system is fairly new, then there is little maintenance required.
Depending on the type of system, there are different aspects to consider for maintenance issues.
If your system is experiencing problems crashing, contact SEA. Our systems are designed to run
without issues. An occasional crash might be expected. However repeated problems are a symptom
that can be traced and solved.
After shipping the system it's recommend to take the lid off and inspect the inside of the system to
make sure the interface cards are properly secured.