Campbell CR23X Dokumentacja Pobierz pdf (Strona 326)

TD ADDENDUM—SECTION 2. INTERNAL DATA STORAGE

AD-2-2

•

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

recor

d 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

ar

e pres

ent 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,

O

ver

Runs, InLocs, PrgmFree, Storage, Tables,

DaysFull, Holes, PrgmSig, PromSig, PromID,

ObjSrlNo

Where the labels are defined as follows:

Battery − Indic

ates 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 (by

tes) of program memory

remaining. Section 1.5.2

Storage − Number of

Final Storage Locations

available for Data Storage Tables. Section

1.5.2

Tables − Num

ber of

user created Data Tables.

DaysFull − Size (i

n days) of the Data Storage

Tables using automatic record allocation. See

Instruction 84.

Holes − Num

ber of

missed records or holes in

all Data Storage Tables. Section 2.1.1

PrgmSig − Signature of pr

ogram memory

program. Same as *B mode first window.

Section 1.6.

PromSig − Signatur

e 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 − Objec

t code serial number of

PROM. Same as *B mode eighth window.

Section 1.6.

Like the InLocs table, a new Status record is

alway

s 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,

Loc

3, Loc4, Loc

5, Loc6, Loc7, Loc8, Loc9

Like the Status table, a new InLocs record is

alway

s 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.

T

he default InLoc

s 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

Ins

tr

uction 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.

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