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Automating Manufacturing Systems - Process Control and ...

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continuous sensors - 23.40<br />

10.<br />

encoders cost more but can have higher resolutions. Potentiometers have limited<br />

ranges of motion<br />

11.<br />

FS<br />

BT9:0/EN<br />

BT9:1/DN<br />

BT9:1/EN<br />

BTW<br />

Rack: 0<br />

Group: 0<br />

Module: 0<br />

BT Array: BT9:0<br />

Data File: N7:0<br />

Length: 37<br />

Continuous: no<br />

BTR<br />

Rack: 0<br />

Group: 0<br />

Module: 0<br />

BT Array: BT9:1<br />

Data File: N7:37<br />

Length: 20<br />

Continuous: no<br />

CPT<br />

Dest F8:0<br />

Expression<br />

"20.0 * N7:41 / 4095.0 - 10"<br />

CPT<br />

Dest F8:0<br />

Expression<br />

"300.0 * (F8:0 + 10) / 20"<br />

RAD<br />

Source F8:0<br />

Dest F8:1<br />

23.9 ASSIGNMENT PROBLEMS<br />

1. Write a simple C program to read incremental encoder inputs (A <strong>and</strong> B) to determine the current<br />

position of the encoder. Note: use the quadrature encoding to determine the position of the<br />

motor.<br />

www.PA<strong>Control</strong>.com

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