CAN Bus Workshop_Version 03__06-2008_EN.pdf - 第292页

1 - 84 Siplace C AN T est Box 1 CAN T est Box Edition 04/200 8 84 Fig. 1.10 - 60 CAN BUS 2 on the D2 mac hine For the CAN BUS 2 ( 1MBit/s ) you ha ve to measure the term inator on the ser vicec onnector X12pa2. The v alu…

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Siplace CAN Test Box
Edition 04/2008 1 CAN Test Box
83
CAN Bus with CAN Terminator on the D2 in detail 1
For the D2 machine we use two different CAN BUS circuits. CAN BUS 1 is working with 1 MBit/s
and CAN BUS 2 is cut in to areas with a different speed. One part of the CAN BUS 2 works with
1Mbit/s and the CAN BUS for the component table and tape cutter with 500 kbit/s. The speed of
the CAN BUS 2 will be reduce on the CAN Interface board which is located on the CAN I/O module
Fig. 1.10 - 59 CAN BUS 1 on the D2 machine
Note to measure the CAN terminator:
In General, the terminator has to measure if the machine is switch off!
In the Fig. 1.10 - 59 for the CAN BUS 1, there are two terminators in the circuit, When the machine
is switch off you have to measure on the serviceconnector X11pa2 a value of 60 Ohm.
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Siplace CAN Test Box
1 CAN Test Box Edition 04/2008
84
Fig. 1.10 - 60 CAN BUS 2 on the D2 machine
For the CAN BUS 2 (1MBit/s) you have to measure the terminator on the serviceconnector
X12pa2. The value should be 60 ohm.
In the Fig. 1.10 - 60 for the component and tape cutter CAN BUS 2, there are four terminators in
the circuit, if the machine switch off and the component table connected. So you measure 30 ohm
on the connector (1).
When the machine is switch on, the Relays contacts K1 will be open and the normal termination
of 60 Ohm is available.
Now, If you change or disconnect a component table, the CAN BUS is working normal, because
the relay contact K1 will be closed and the other terminator is available.
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Siplace CAN Test Box
Edition 04/2008 1 CAN Test Box
85
1.10.10.3 CAN Bus Siplace D4
Fig. 1.10 - 61 CAN bus structure D4
MC
Micro BOX PC (Machine controller)
Input Hoods
C
A
N
B
u
s
1
P
A
1
X11pa
Transport
Control unit
Tape cutter 4
Axis unit 1/4
PA 1
CAN E/
A
Modu
l
CAN E/
A
Modu
l
Sektor
4
CAN E/
A
Modu
l
Sektor 4
CAN I/O
Module
Sector 4
Component table 4
Distributor Sector 4
Trailing distributor
Gantry 4
Gantry Head distributor
Gantry 4
CAN Terminator
(1MBit/s)
X12pa
C
A
N
B
u
s
2
P
A
2
X11pa2
Service-
connector
X12pa2
Service-
connector
CAN Interface
500 KBit/s
X23da
Trailing distributor
Gantry 1
X23aa
Gantry Head distributor
Gantry 1
CAN Terminator
(1MBit/s)
Tape cutter 1
Distributor Sector 1
CAN Terminator
(500 kBit/s)
Component table 1
X3qe
X30_1tq
X30_2tq
X22ao
X22ao
X4qe
X15dv
X5qe
X4dh
X4dh
X4ah
X4ah
X1qd
X1af
X15av
Gantry Head distributor
Gantry 3
CAN Terminator
(1MBit/s)
Trailing distributor
Gantry 3
X23ca
Axis unit 2/3
PA 2
X30_1sq
X30_2sq
CAN E/
A
Modu
l
CAN E/
A
Modu
l
Sektor
4
CAN E/
A
Modu
l
Sektor 4
CAN I/O
Module
Sector 2
Distributor Sector 2
CAN Interface
500 KBit/s
X3re
X5re X4re
Gantry Head distributor
Gantry 2
CAN Terminator
(1MBit/s)
Trailing distributor
Gantry 2
X23ba
Component table 2
X15bv
Tape cutter 2
Tape cutter 3
Distributor Sector 3
CAN Terminator
(500 kBit/s)
Component table 3
X4bh
X4bh
X4ch
X4ch
X1rd
X1cf
X15cv
CAN Bus Baudrate:
1MBit/s
500KBit/s
Distributor Sector 4
CAN Terminator
(500 kBit/s)
X1qf
X2qf
Distributor Sector 2
CAN Terminator
(500 kbit/s)
X1rf
X2rf