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CHAPTER 4
Performing Advanced Functions
42
ID INFO rf_in rf_out date time ver clk stack cop
batt temp days_uptime min:sec_uptime rssi pmp_low
pmp_high type slot samples po err_level
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The formats for the above parameters are as follows:
• rf_in and rf_out as a decimal
• date as dd/mm/yyyy
• time as hh:mm:ss
• ver as x.x
• clk, stack, and cop as decimal; they represent internal
housekeeping parameters and are implementation
dependent (the A720 uses cop to number watchdog
occurrences, but clk and stack are currently undefined for
the A720; for the A723 clk returns the SST – Sensor Sampling
Time value, default 2)
• batt as battery level using the standard voltage conversion
equation (0 is 0 volts, 255 is 20 volts)
• temp as internal temperature in the A720 housing, which is
device dependent. The precision of the sensing element is
very low (±4°C), but it is sufficient for battery power
management (charge/discharge). To compute the actual value
(in °C), the following equation must be used:
• days_uptime in days; together with min:sec_uptime, it
represents the amount of time the device is up without a reset
or watchdog
• min:sec_uptime in minutes:seconds format
• rssi as decimal; it is the programmed value with the RSSI
command
• pmp_low and pmp_high are the programmed values with the
PMP command
• type is used to represent the device type; following types are
assigned currently:
— 0 for A730MD
— 1 for A720
— 2 for A730SD
— 3 for A720B
Temp internalTemp
1087
255
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