5.4.1 Align the camera ..................................................... 5-25
5.4.2 Adjust and focus the camera ................................... 5-26
5.4.3 Calibrate the camera ............................................... 5-30
5.5 VVS Carcass .......................................................................... 5-33
6 Parameters ........................................................................................... 6-1
6.1 General ................................................................................... 6-3
6.2 Parameter buffer .................................................................... 6-4
6.2.1 Material parameters for Breaker ............................. 6-4
6.2.1.1 Offsets ................................................................ 6-5
6.2.1.2 Tip correction ..................................................... 6-5
6.2.1.3 Breaker dimensions ........................................... 6-6
6.2.1.4 Split breaker ....................................................... 6-6
6.2.1.5 90° Breaker ........................................................ 6-6
6.2.1.6 Algorithm and splice correction .......................... 6-7
6.2.1.7 Material scan example ....................................... 6-8
6.2.1.8 Splice correction ................................................ 6-9
6.2.2 Material parameters for Carcass ............................. 6-10
6.2.2.1 Offset ................................................................. 6-11
6.2.2.2 Width and width tolerances ................................ 6-11
6.2.2.3 Tilt tolerances ..................................................... 6-12
6.2.2.4 Material angle .................................................... 6-12
6.2.3 Material parameters for Tread ................................. 6-12
6.2.3.1 Offset ................................................................. 6-13
6.2.3.2 Width and width tolerances ................................ 6-13
6.2.3.3 Calibration length ............................................... 6-13
6.3 Command buffer ..................................................................... 6-14
6.3.1 Command parameters ............................................ 6-14
6.4 Status buffer ........................................................................... 6-16
6.4.1 Feedback signals (word 0) ...................................... 6-16
6.4.2 Sensor errors (word 1) ............................................ 6-18
6.4.3 Functional description (word 2) ............................... 6-19
6.4.4 Actual position measurements (word 3-9) ............... 6-20
6.4.5 Extended status bits (word 10-11) .......................... 6-21
6.4.6 Extended status words (word 12-31) ...................... 6-21
6.5 System parameters ................................................................ 6-22
6.5.1 Default breaker system parameters. ....................... 6-22
6.5.2 Default carcass system parameters ........................ 6-23
6.5.3 Default tread system parameters ............................ 6-24
6.5.3.1 How to measure the mechanical gain for a
tread server ........................................................
6-24
6.5.3.2 How to measure the camera to end conveyor
distance ..............................................................
6-25
6.6 Actuator parameters ............................................................... 6-26
6.7 Sensor parameters ................................................................. 6-27
6.8 Communication scenarios ...................................................... 6-29
6.8.1 POWER UP sequence ............................................ 6-29
6.8.2 HOME command sequence .................................... 6-29
6.8.3 CENTERING command sequence .......................... 6-30
6.8.4 TREAD CENTERING command sequence ............ 6-31
6.8.4.1 Tread read profile command sequence ............. 6-31
6.8.4.2 Tread centering command sequence ................ 6-32
6.8.5 EMERGENCY STOP recovery sequence ............... 6-32
6.8.6 HEARTBEAT sequence .......................................... 6-33
CONTENTS
THINKING FORWARD
VMI Vision System VVS (OL82) VVSX 13.0.12.0, VVSU 3.0.6 / 4 / 2016-07-11 / pd#175592
iv