Hexamite

Ultrasonic Positioning Device Single Point

Index

Application

• Tracking and Guidance
• Multipoint Positioning
• Machinery and Automation Spatial Position Feedback
• Object Locator Systems.

Features

• Range up to 16m
• Max. Resolution 0.7mm
• Ambient Noise Immunity

Size: 1.1" x 2.6" x 2.6" (28 x 67 x 67 mm)

HE900M1 Hexamite Positioning Device

HE900M1 Ultrasonic Positioning Device

The HE900M1 is designed to operate as a point in a multipoint multidimensional positioning system. It can be setup as a pilot or a beacon via serial I/O wire connectors on the back of the device. This device has construction that makes it best for multipoint fixed applications linked via RS485 network. 

The detection angle for the HE900M1 is  130 degrees at a distance of 6 meters. At a distance of 8 meters this angle is 75 degrees. These angles are measured HE900M1 to HE900M1.

Wire Function

The HE900M1 has four wires connecting it to network and power. Two wires Orange and Green provide the unit with power, two wires Black and White facilitate communication with the HE900M1. If the Blue wire is open (not connected) or 5 volts at startup, default parameters are loaded into the working registers of the device. The default parameters are set for one unit operation, i.e. it is assumed it is the only device on the network. 

While default parameters are loaded the device continuously initiates position acquisition cycles, and transmits data acquired during the cycle. This allows the user to test the communication between the HE900M1 and the computer and adjust the communication settings. During normal multidrop network communications this wire should be grounded to 0V, otherwise there will be network conflict.

Brown Wire: Synchronization Input 

The device will synchronize on the falling edges of the input signal, if in beacon mode the signal on this pin overrides other form of synchronization. If the device is configured as master this pin outputs the synchronization signal.

The illustration below shows how HE900M1 positioning devices may be connected to a RS485 network. The wires connecting the devices can be up to 10 miles long. The network is plugged into the serial port of the central computer through a RS485 to RS232 converter, these are commercially available. Hexamite supplies the HE485DC designed to work for this type of network only.

The communication parameters for the HE900M  are 19200 baud, 8 bit, 1 stop bit, no parity. No Xon/Xoff handshaking 

The HE900M1RS485 is compliant with recommended standard 485, an RS485 to RS232 converter is required if the PC is to be used to control and monitor operations.  

Copyright © 1999 [Hexamite]. All rights reserved. Revised: mars 03, 2009 .

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