user manual

IRU-2xx4/3xx4 Rev. A2, 11/08
12
Automation Products Group, Inc.
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PULSES
Pulses is used to control output power of the sensor. Each burst from the
sensor contains a number of pulses. More pulses equate to more power and
fewer pulses to less power. Caution: More power may not always be best as
more pulses can create more echoes and may result in false readings.
To read the pulses in a sensor, use the command structure:
Send Receive
AAh Start Byte 66h Start Byte
01h, Sensor Number 01h Sensor Number
07h Command 07h Command
00h Data (not used) ##h Pulses(High Byte)
00h Data (not used) ##h NA (Low Byte)
55h End Byte ##h NA
99h Stop Byte
To change the pulses in the sensor to 9 , use the command structure:
Send
AAh Start Byte
01h, Sensor Number
08h Command
09h Data 9 pulses
00h Data (not used)
55h End Byte