SL900A datasheet(49/103 Pages) AMSCO

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ams Datasheet

Page 49

[v1-12] 2018-Oct-29

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SL900A − Logging Formats

In case battery measurement or external sensors are used for

logging, the chip will use the following storage format:

Figure 26:

Dense Form with Temperature and Battery Measurement

Figure 27:

Dense Form with Temperature, Battery Measurement and 1 External Sensor

Figure 28:

Dense Form with Temperature, Battery Measurement and 2 External Sensors

In the dense logging form, no time information is stored in the

measurement area of the EEPROM in order to maximize the

number of stored sensor values. The real time of a particular

measurement can be calculated by using the Start time and Log

interval.

Out-of-Limits Logging Form

This logging form uses the limits that are set by the user. The

limits can be set with the SET LOG LIMITS command. The storage

data format is the same for the “All values out-of-limits” form

and the “Limits crossing” form.

Bits

Block #

9876

5432

0x00

Battery measurement - 6 bits

Temperature measurement - 10 bits

Bits

Block #

9876

5432

0x00

Range 5 bits

External sensor 1 - 10 bits

0x01

Battery measurement - 6 bits

Temperature measurement - 10 bits

Bits

Block #

9876

5432

0x00

Range 5 bits

External sensor 1 - 10 bits

0x01

Range 5 bits

External sensor 2 - 10 bits

0x02

Battery measurement - 6 bits

Temperature measurement - 10 bits

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