
Reading Registers
AiRanger DPL Reading registers contain the measurement display value. Two registers are used for the
reading associated with each point of measure.
Port 1 Reading registers 40007 and 40008 apply to point 1, 40009 and 40010 to point 2, 40011 and 40012 to
point 3.
Check the first register for a value of 56,797 ($DDDD) (point out of service) or 61,166 ($EEEE) (display
overflow).
For any other value, convert the register values to a floating point decimal (FPD) value by:
FPD = Register 1 (decimal equivalent) value +
Register 2 (decimal equivalent) value
10,000
The range of FPD values possible is 0.0 to 9,999.9999
Confidence Registers
AiRanger DPL Confidence registers contain the echo confidence value of the associated point of measure.
Port 1 Confidence register 40013 corresponds to point 1, 40014 to point 2, 40015 to point 3 (average). The
Confidence register value range is 00 ($00) to 99 ($63).
Analog Registers
AiRanger DPL Analog registers contain a value associated with the AiRanger DPL mA output for the
associated point of measure. Port 1 Analog register 40016 corresponds to point 1, 40017 to point 2, 40018 to
point 3 (average). The Analog register value range is 000 ($000) to 4095 ($FFF). Divide the decimal
equivalent by 204.75 to calculate the mA value.
PL-371 9 – 8
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