Part 1. Overview
OV-15
5.
Enter the Output Processing Instructions to store processed data in Final
Storage. The order in which data is stored is determined by the order of the
Output Processing Instructions in the table.
6.
Repeat steps 4 and 5 for additional outputs at different intervals or condi-
tions.
The program must be executed for output to occur. Therefore, the
interval at which the Output Flag is set must be evenly divisible by
the execution interval. For example, with a two-minute execution
interval and a five-minute output interval, the program will only be
executed on the even multiples of the five minute intervals, not on
the odd. Data will thus be output every ten minutes instead of every
five minutes.
Execution intervals and output intervals set with Instruction 92 are synchronised
with real time, starting at midnight.
OV4.4 Instruction Format
Instructions are identified by an instruction number. Each instruction has a num-
ber of parameters that give the CR10X the information it needs to execute the
instruction.
The CR10X Prompt Sheet has the instruction numbers in red, with the parameters
briefly listed in columns following the description. Some parameters are footnoted
with further description under the ‘Option Codes’ heading.
For example, Instruction 73 stores the maximum value that occurred in an Input
Storage location over the output interval. The instruction has three parameters: (1)
REPetitionS, the number of sequential Input Storage locations on which to find
maxima, (2) TIME, an option of storing the time of occurrence with the maximum
value, and (3) LOC the first Input Storage location operated on by the Maximum
Instruction. The codes for the TIME parameter are listed in the ‘Option Codes’.
The repetitions parameter specifies how many times an instruction’s function is to
be repeated. For example, four 107 thermistor probes may be monitored with a
single Instruction 11, Temp-107, with four repetitions. Parameter 2 specifies the
input channel of the first thermistor (the probes must be connected to sequential
channels). Parameter 4 specifies the Input Storage location in which to store
measurements from the first thermistor. If location 5 was used and the first probe
was on channel 1, the temperature of the thermistor on channel 1 would be stored
in input location 5, the temperature from channel 2 in input location 6, and so on.
Detailed descriptions of the instructions are given in Sections 9-12. Entering an
instruction into a program table is described in Section OV5.
OV4.5 Loading a Program
Programs are loaded into the CR10X in one of the following ways:
1.
Keyed in using the CR10KD Keyboard/Display.
2.
Loaded from a pre-recorded listing using the *D Mode. The program listing
may come from one of two sources:
a. A
PC
b. A Campbell Scientific Storage Module
NOTE