BEI Sensors Dual Encoder to USB Converter Module - Manual (Page 4)

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Specification No. 02109-001 Rev. 06/11
MODULE PINOUT
MODULE USB COMMANDS
ABSOLUTE ENCODER COMMANDS
(see page 4)
 Set Data Length of Encoder (8 to 32 bits)
 Read Encoder Position
GENERAL COMMANDS
(see page 4)
 Read module Part Number and Serial Number
INCREMENTAL ENCODER COMMANDS
(see page 3)
 Set Encoder Count Mode, Pulse/Dir, X1, X2, X4 and
Counter Width
 Set Encoder Counter to Preset/Zero on Z Channel
Trigger
 Set Encoder Counter to Value XXXX
 Read Encoder Counter Value
 Read Encoder Status Flags
USB COMMUNICATION PROTOCOL
Download the appropriate driver package for your operating system from: http://www.beisensors.com
and install the USB to serial link drivers. When you plug in the module via the supplied USB cable, you
should notice an additional serial port becomes active on your PC (for example, COM3). You can check
which port it is by going into the device manager in windows (right-click MyComputer, select Properties, go
to Hardware/Device Manager, expand the Ports item.). You can now communicate with the device with any
serial communication program (such as HyperTerminal, which comes with Windows). The serial port
settings are 115200 baud, 8 data bits, no parity bit, 1 stop bit, no flow control.
The general formats of the commands are as follows:
$
Commands that return data will respond according to their command description.
Successful commands that do not return data will respond with an ACK:
*
Unsuccessful commands will respond with a NACK: *
The dollar sign ($) is the start of packet character. The
Absolute Encoder Connections
PIN Description Notes
D Data Data Line From encoder
D/ Data/ Data/ Line From Encoder
C Clock Clock Line From Encoder
C/ Clock/ Clock/ Line From Encoder
V+ +V
+V from external
power supply*
0V
0V (Circuit
common)
Connect 0V from external
power supply
*Not internally connected in Module
Incremental Encoder Connections
PIN Description Notes
A Channel A Channel A Line From Encoder
A/ Channel A/ Channel A/ Line From Encoder
B Channel B Channel B Line From Encoder
B/ Channel B/ Channel B/ Line From Encoder
Z Channel Z Channel Z Line From Encoder
Z/ Channel Z/ Channel Z/ Line From Encoder
V+ V+
+V from external
power supply*
0V
0V(Circuit
Common) 0V from external
power supply*