SG_FSE_SiplaceHF_HF3_00193901-05_eng.pdf - 第85页

1 - 15 S tudent Guide SIPLACE HF/HF3 Edition 09/2005 3 Communication and Control 15 3.3.3 CAN Bus Concept on HF machine(up to MA.No. xx) The placement machine SIPLACE HF uses a bus system with 1 Mbit/s transmission rate.…

100%1 / 596
1 - 14
Student Guide SIPLACE HF/HF3
3 Communication and Control Edition 09/2005
14
Arbitration: state of matter diagram 3
Fig. 3.3 - 9 flow chart bus arbitration
There are two bus states, called ’dominant’ and ’recessive’. The bus logic uses a ’Wired-AND’
mechanism, that is,
’dominant bits’ (equivalent to the logic level ’zero’) overwrite the ’recessive
bits’
(equivalent to the logic level ’one’).
Example: Arbitration with bit by bit detection of 2 member.
3
Fig. 3.3 - 10 CAN- bus arbitration with 2 member
waiting if bus is free
bit SoF
bus in receiving state
1st bit of arbitration
transmitted
compare transmitted bit
level with bus level
bus in error state
arbitration lost?
recessive bit on dominant bus state
all arbitration bits are transmitted,
send control field and data field
next bits
START: Any member
will send a message
11 10 9 8 7 6 5 4 3 2 1 0
recessive (logical high)
dominant (logical low)
member 1 wins arbitration here
member 2 looses arbitration here
and switch in receiving state
identifier member 1 1
Bit
identifier member 2 2
1 - 15
Student Guide SIPLACE HF/HF3
Edition 09/2005 3 Communication and Control
15
3.3.3 CAN Bus Concept on HF machine(up to MA.No. xx)
The placement machine SIPLACE HF uses a bus system with 1 Mbit/s transmission rate.The
CAN: Bus system begin at the Communication board and is split in 2 path. Every path is termi-
nated by a 120 ohm terminator on the CAN Bus board at the individual placement head.
Fig. 3.3 - 11 CAN Bus overall overview (new circuit diagrams)
Please Note: At SC/MC 505 update the gantry2 name change to gantry 3!!
The CAN- Wiring is changed that the cable went from COT3 to Gantry 3 and from Transport con-
trol to Gantry 1!! The CAN-Bus system is splited to 2 CAN-systems mean the second connector
at COMboard 1 is connected to COM 2!!
SMP BUS
MC
MC
Trailing cable-
Interface
Gantry 1
Trailing cable-
Interface
Gantry 2 *
CAN Bus cable 2
COT 3
Tape cutter
CAN Bus cable 1
Computer Unit
* SW Update 504 --> 505 Gantry 2 will be changed to gantry 3
old cable loop!
new circuit diagram!
Transport
Control
unit
COT 1
Tape cutter
Axis unit
PA 2
Vision
Section 2
CAN I/O
Main Module
Main Distributer Sektor 4
Control unit
Section 2
CAN E/A
Modul
Sektor 4
CAN E/A
Modul
Sektor 4
CAN E/A
Modul
Sektor 4
CAN I/O
SUB Module
Section 4
Vision
Control unit
SUB Distributor Section 4
Section 4
COT 2 / MTC
Tape cutter
COT 4 / MTC
Tape cutter
COM Unit
(left)
COM Unit
(right)
1 - 16
Student Guide SIPLACE HF/HF3
3 Communication and Control Edition 09/2005
16
3.3.4 CAN Bus Concept on HF machine from MA. No. xx
The placement machine SIPLACE HF uses a bus system with 1 Mbit/s transmission rate.The CAN
Bus system begin at the Communication board and is split in 2 path. Every path is terminated by
a 120 ohm terminator on the CAN Bus board at the individual placement head.
Fig. 3.3 - 12 CAN Bus overall overview (new circuit diagrams)
Please Note: At SC/MC 505 update the gantry2 name change to gantry 3!!
SMP BUS
COM Unit
MC
MC
CAN Bus cable 1
Computer Unit
* SW Update 504 --> 505 Gantry 2 will be changed to gantry 3
new cable loop!
new circuit diagram!
Trailing cable-
Interface
Gantry 1
Transport
COT 1
Tape cutter
Control unit
CAN Bus cable 2
CAN E/A
Modul
Sektor 4
CAN E/A
Modul
Sektor 4
CAN E/A
Modul
Sektor 4
CAN I/O
SUB Module
Section 4
Vision
Control unit
SUB Distributor Section 4
Section 4
COT 4 / MTC
Tape cutter
Vision
Section 2
CAN I/O
Main Module
Section 2
Main Distributor Section 4
Control unit
COT 2 / MTC
Tape cutter
Axis unit
PA 2
COT 3
Tape cutter
Trailing cable-
Interface
Gantry 2*