Campbell Scientific CR10 CR10 Measurement and Control - Page 20

cRl0 ovERvrEw Sensors Control INPUT/OUTPUT INSTRUCTIONS Specify the conversion of a sensor signal to a data value and store it in Input Storage. Programmable entries specify: (1) the measurement type (2) the number of channels to measure (3) the input voltage range (a) the Input Storage Location (5) the sensor calibration constants used to convert the sensor output to engineering units l/O lnstructions also control analog INPUT STORAGE Holds the results of measurements or calculations in user specified locations. The value in a location is written over each time a new measurement or P ROCESS I NG I NSTR U CTI ON S Perform calculations with values in Storage. Results are returned to Input Storage. Arithmetic, lranscendental OUTPUT PROCESS'NG INSTRUCTIONS Perform calculations over time on the values updated in Input Storage. Summaries for Final Storage are generated when a Program Control Instruction sets the Output Flag in response to time or events. Results may be redirected to Input Storage for further processing. Examples include sums, averages, max/min, standard Output Flag set high INTERMEDIATE STORAGE Provides temporary storage for intermediate calculations required by OUTPUT PROCESSING for example, sums, cross products, FINAL STORAGE Final results from OUTPUT PROCESSING INSTRUCTIONS are' stored here for on-line or interrogated transler to external devices (Figure OV5.1-1). The newest data are stored FIGURE OV2.1-1. Instruction Types and Storage Areas ov-6