Campbell Scientific CR10X TD Operating System Addendum for CR510, CR10X, and C - Page 26

TD ADDENDUM-SECTION 2. INTERNAL DATA STORAGE • The output interval is not an even multiple of the scan rate (table execution interval). • Table execution is such that Instruction 84 is not executed each scan. • Table overruns occur. • Watchdog errors (E08) occur. 2.1.2 RECORD NUMBERS In addition to a timestamp, each record has record number. The record numbers are unique within a data table. Record numbers are 4 byte unsigned numbers ranging from 0 to 4,294,967,296. When the datalogger program is compiled the next record number for each table is set to zero. 2.1.3 TABLES AND FIELDS. There are four "built in" tables. These tables are present when the datalogger is powered on. These tables are named INLOCS, TIMESET, ERRORLOG, and STATUS. The fields within these tables are also already defined with the exception of the INLOCS. The field names for each of the fields is given below. TmStamp is the label for the timestamp and RecNbr is the label for the record number. TimeSet TmStamp, RecNbr, OldTime ErrorLog TmStamp, RecNbr, Code Status TmStamp, RecNbr, Battery, WatchDog, OverRuns, InLocs, PrgmFree, Storage, Tables, DaysFull, Holes, PrgmSig, PromSig, PromID, ObjSrlNo Where the labels are defined as follows: Battery − Indicates the datalogger battery voltage. WatchDog − The number of Watchdog Errors (E08). (Maximum 99). Section 3.10 OverRuns − Program table overruns that have occurred (Maximum 99). Section 1.1.1. InLocs − Number of Input Location that have been allocated. Section 1.5.2 PrgmFree − Amount (bytes) of program memory remaining. Section 1.5.2 Storage − Number of Final Storage Locations available for Data Storage Tables. Section 1.5.2 Tables − Number of user created Data Tables. DaysFull − Size (in days) of the Data Storage Tables using automatic record allocation. See Instruction 84. Holes − Number of missed records or holes in all Data Storage Tables. Section 2.1.1 PrgmSig − Signature of program memory program. Same as *B mode first window. Section 1.6. PromSig − Signature of datalogger PROM. Same as *B mode second window. Section 1.6. Prom ID − Item number of PROM. Same as *B mode seventh window. Section 1.6. ObjSrlNo − Object code serial number of PROM. Same as *B mode eighth window. Section 1.6. Like the InLocs table, a new Status record is always available when the datalogger is checked for data. For this reason the Status table is usually collected for display rather than archive. InLocs TmStamp, RecNbr, Flags, Ports, Loc1, Loc2, Loc3, Loc4, Loc5, Loc6, Loc7, Loc8, Loc9 Like the Status table, a new InLocs record is always available when the datalogger is checked for data. For this reason these tables are usually collected for display rather than archive. By default only nine Input Location are labeled. The default InLocs field labels can be replaced with user created labels. These labels are created with EDLOG technique for Input Location labels. Press CTRL-L when editing a LOC field. When additional data tables are created with Instruction 84, these tables and the fields they contain can also be named by the user. The datalogger will supply a default name for tables and fields if they are not named. The default names are T01, T02, for the tables and F01, F02, etc. for the fields, numbered in the order they appear. Edlog allows the programmer to name the tables and fields. AD-2-2