Hi,
I'm new to these systems and I'm trying to understand why I'm recieving some errors when working this the PC9000 program.
the errors are:
PC-Card Bytes Free = -1, this happens when I'm attempting to download the program from the pc to the datalogger.
logger status observed skippedscans if value increasing, increase scan interval..... I've increased the interval to get around this but it does not seem to have any real affect on what is happening.
Any help would be great, Thanks
Does anyone have insite into what these error codes mean?
A quick answer:
PC-Card Bytes Free = -1 indicates the logger could not find a PC card when it compiled the program. It may show an additional error message if you include program instructions which specifically indicate storage to the card, warning you it will not be able. Generally this is not something to be worried about if you do not intend to use a storage card.
Skipped scans as you say indicate the logger has detected it cannot do all you have asked of it in the scan time set. Occasionally this happens just after you have loaded the program, for instance if you include a lot of initialisation and setup code, which is then no longer run.
If however the skipped scans counter continues to increment, the logger will not be running as fast as you intend, perhaps only running every other scan. This may not be that apparent if monitoring a numeric value on a slowly updating display.
You would need to get someone to study the program in detail to work out why it is running slower than intended. A common cause is setting 50/60 Hz rejection or long settling times on measurements.
thank you for your help