APPENDIX B. CR10 PROM SIGNATURE AND OPTIONAL SOFTWARE

CR10 PROM contains one of the following options then detailed information on the special option(s) will be placed in Appendix H.

13,14 ADD R, S, & B THERMOCOUPLE LINEARIZATIONS

In addition to the linearizations for the T, E, J, and K thermocouples, Instructions 13 and 14 have the R, S, and B thermocouple linearizations.

15 CONTROL PORT SERIAL I/O (for smart sensor)

This Instruction allows sending and receiving half duplex data through the control ports at 300 or 1200 baud.

105,106 SDI12 RECORDER/SENSOR Instruction 105 allows the CR10 to use its control ports to collect data from an intelligent sensor which uses the SDI12 communication protocol.

Instruction 106 allows the CR10 to behave as an SDI12 sensor.

62COVARIANCE/CORRELATION This Instruction calculates 1) means, 2) variances, 3) standard deviations, 4) covariances and 5) correlations for a set of input values and stores the results in Input Storage. Subintervals are allowed for convenient high pass filtering.

81 RAINFLOW HISTOGRAM

The Rainflow counting algorithm is a means of estimating cumulative damage fatigue by processing strain measurements to produce a histogram in which closed stress/strain hysteresis loops are counted by amplitude ranges. The histogram can be two dimensional, with each amplitude range sorted on the basis of average strain during the cycle. (The name, Rainflow, comes from the idea that a strain/time plot with strain as the y axis looks like a pagoda roof. Then, the algorithm is somehow analogous to the way in which rain flows down the roof.)

The Instruction can either process a swath of data from measurements made with the burst measurement instruction, or it can be used "on line", processing a new reading with each execution interval.

99 SATELLITE TRANSMITTER INTERFACE Interface to allow output to GOES satellite via the Valcom satellite transmitter.

64 Hz RESET ON PULSE COUNTERS The reset interval on the pulse counters is changed from 1/8 second to 1/64 second. This allows reading the pulse counters on intervals shorter than 0.125 second and allows counting frequencies up to 16 kHz with the 8 bit option. The quiescent current drain of the CR10 is increased to 5 mA when the pulse count instruction is used. A hardware modification to the CR10 is also required.

*4 PARAMETER ENTRY TABLE

This option allows instruction parameters to be flagged. The values to use for the parameters are then entered into a table in the *4 Mode.

This feature is of use when the same program is used for a number of stations but individual changes need to be made for each station (e.g. identical measurements are made at each station but certain sensors do not have interchangeable calibrations). It is easier and safer to train someone to enter the correct values in the table format than it would be to have them attempt to alter the program.

B-2