MICRO-EPSILON scanCONTROL2800, Инструкция по эксплуатации

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MICRO-EPSILON
X9751109-B060097MSC 23
6.3 Coupling Sensors via the FireWire Interface
6.3.1 General Properties of the IEEE 1394 (FireWire) Bus System
FireWire (or the IEEE 1394 bus) is a serial bus system which can be branched as
required with up to 63 devices operating together on one PC interface.
The data is transmitted in both directions (bi-directional) on symmetrical and shielded
two wire lines via standard cable.
Restrictions :
• The branching must not include loops.
• A maximum of 17 devices can be cascaded in a line ("daisy-chained").
• The maximum cable length between two devices is 4.5 m.
• The maximum length of a "daisy chain" section is 72 m.
• The data rate of 400 Mbit/s applies to the whole bus and must be shared between
the connected devices. In the standard configuration up to four scanCONTROL 28x0
controllers can be operated on one bus.
6.3.2 FireWire Configuration
The example illustrates the cascade wiring of two 28x0 (1 and 2) controllers and a
controller (3) and a digital camera (2).
Fig 6.3: Example of a FireWire configuration
To ensure "connection without loops", the free connection of controller 3 must not be
connected in addition to one of the connections of controller 1 or 2 or the PC interface
card.
Devices added new are therefore most effectively added to the end of a line in order
not to influence the parameterization and measurement transmission of existing
sensors. We recommend the use of the FireWire standard connecting cable from the
optional accessories. Further information and links can also be found in the Internet,
e.g. under http://www.vxm.com/21R.49.html, or via a search engine under "FireWire" or
"Fire Wire". Micro-Optronic cannot give any guarantee for the content and property
rights of the sources quoted.
FireWire Connection Sockets
Three fully equivalent 6-pole connection sockets
are provided with connection assignment
according to the 1394-1995 specification.
The controller does not supply any operating
voltage to the 1394 connection sockets.
The use of the standard connection cable from the
accessories is recommended. The IEEE 1394
(FireWire) interfaces are electrically isolated from
the rest of the circuit.
i
IMPORTANT!
The controller does not
supply any operating
voltage to the 1394
connection sockets.
Measurement Setup and Putting into Operation
Fig. 6.4: FireWire
connection socket
n i P l a n g i S
1
2
3 B P T /
4 B P T
5 A P T /
6 A P T
laser off
on
1394 1394 1394 RS 232
RS 422
video analog
laser on
power on
error
sensor
control
mode
mode 2
mode 1
3
reset
24VDC
synchron
laser off
on
1394 1394 1394 RS 232
RS 422
video analog
laser on
power on
error
sensor
control
mode
mode 2
mode 1
3
reset
24VDC
synchron
laser off
on
1394 1394 1394 RS 232
RS 422
video analog
laser on
power on
error
sensor
control
mode
mode 2
mode 1
3
reset
24VDC
synchron
Matrox Meteor II
PC with PCI
interface card scanCONTROL28x0
Controller 1
scanCONTROL28x0
Controller 3
scanCONTROL28x0
Controller 2
1 2 3
1 2 1 1
IEEE
1394
Camera 1
IEEE 1394
IEEE 1394 IEEE 1394