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Appendix C. Table-Based Dataloggers
status, port status, and the reading from each sensor scanned or user
created input locations.
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Status Table – The Status table contains information on the datalogger.
Data is written to the table with each datalogger program execution. Note
that the actual fields contained in the table are datalogger-specific.
TABLE C-1. Example of Status Table below describes typical fields that
are given in the Status table. Not all fields will be present or applicable for
all dataloggers. See the datalogger operator’s manual for specifics.
TABLE C-1. Example of Status Table Entries (CR10T)
TMStamp Date and time the status information was recorded.
RecNBR
The record number in the table.
Battery Datalogger battery voltage.
Watchdog The watchdog checks the processor state, software timers, and program
related counters. If an error occurs, the watchdog counter is incremented.
Overruns A table overrun occurs when the datalogger has insufficient time between
execution intervals to complete one pass through the program. This
counter is incremented with each table overrun.
InLocs Number of input locations allocated for the program.
PrgmFree Amount of remaining program memory, in bytes.
Storage
Number of final storage locations available.
Tables Number of user-created data tables.
DaysFull Estimated number of days of data the tables using automatic record
allocation can hold. (NOTE: this number is only based on tables stored at
intervals. Automatically allocating an event based table will often result in
very small interval tables.)
Holes Number of missed records in all data storage tables.
PrgmSig Signature of the datalogger program. The signature is a unique number
derived from the size and format of the datalogger program. If this
signature changes, the program has been altered.
PromSig Signature of the datalogger PROM. As with the PrgmSig, if this signature
changes, the datalogger instruction set has somehow been changed.
PromID Version number of the datalogger PROM.
ObjSrlNo
Revision number of the datalogger PROM.
ROMVersion Version of the ROM code. This value is stored in the ROM and read by
the OS at compile time.
OSVersion Current version of the operating system.
OSItem The CSI item number for the operating system.
OSDate
Date that the Operating System was compiled.
StationName String stored as the Station Name of the CR5000.
ProgName The Name of the currently running program.
C-7