SiplaceX4_en - 第80页
1 - 10 S tudent Guide SIPLACE X 3 Communication and Control Edition 09/2005 10 Note:
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Student Guide SIPLACE X
Edition 09/2005 3 Communication and Control
9
3.2.3 Communication on placement machine
The placement data files, stored at the hard drive, are compiled at the station computer. This com-
piling add the calibrated values, taken during calibration in Sitest, to the pick up and placement
data.
Fig. 3.2 - 3 communicaton on the station
3.2.4 Machine Controller Communication
For the calculation of the ’pick up coordinates’ the MC add the pick up correction values (former
pick up offsets) to the pick up coordinates.
For the calculation of the
’placement coordinates’ the MC add the PCB position correction values
and the component correction values (from camera evaluation) to the placement coordinates.
Fig. 3.2 - 4 communication with MC
Axis controller
Axis controller
Axis controller
Axis controller
Machine
Controller
Station
Computer
Compiled
data LC
aktuell.nu
aktuell.rs
XXX_12.gf
XXX_5.mk
...
Compile
run SC
Stationcomputer with Visionsoftware
Visioncomputer for PA2 optionally
Axis controller
CAN BUS 1Mbit/s
X-Axis
controller
SC
Station computer
Machine
Controller
Y-Axis
controller
Star-Axis
controller
Z-Axis
controller
DP-Axis
controller
Placement
data at MC
target position for
pick-up / placement to axis
controller from MC
Dual LAN Unit
PCB camera
Component camera
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Student Guide SIPLACE X
Edition 09/2005 3 Communication and Control
5
3.3 CAN Bus
3.3.1 History of CAN
The development of CAN began when more and more electronic devices were implemented into
modern motor vehicles. Examples of such devices include engine management systems, active
suspension, ABS, gear control, lighting control, air conditioning, airbags and central locking. All
this means more safety and more comfort for the driver.
Fig. 3.3 - 1 communication via cable connection
Fig. 3.3 - 2 communication e.g. on Siplace S15 machine
To improve the behavior of the vehicle even further, it was necessary for the different control sys-