> [ Abstract ] took the IEC61158 international
standard main line, the INTERBUS field bus use twisted pair line, the
optical fiber or wireless carry on the data mix transmission, the
transmission speed is constant is 500K or 2M, may with bring the
INTERBUS connection between each kind of equipment to carry on the
data communication. Its unique moves in a circle the data stream
way, enables to have the very high stability, the transmission
efficiency and the very strong diagnosis function. In addition,
Phoenix electricity production direct scene installment each kind of
product reduced the setup time and the expenditure, thus reduced the
installment expense, moreover also no longer needed traditional the
wiring. In manufacture automated system and so on automobile,
papermaking, tobacco massive uses, has the widespread serviceability.
This article tells in brief the INTERBUS field bus product in
aluminum profession application, has the promoted value.
[ Key word ] INTERBUS main line Fieldline system
1. about INTERBUS main line
The Phoenix electricity continuously devotes to the
Chinese automation enterprise development. As the field bus,
PC-Based, the industry ethernet technology forerunner, Phoenix took
the lead to propose the FIELDBUS+ETHERNET this new automation plan,
the structure perfect industrial enterprise has managed the control
network.
Since the previous century's end, along with the communication
technology, the computer technology network technology rapid
development, the industrial automation domain has had the profound
transformation. German Phoenix Contact Corporation diligently
joins in to this time tide, in the field bus technology, the PC-Based
technology, in the industry ethernet technology this automation three
big important innovations is eagerly anticipating the world step.
As the field bus first ancestor, came from Germany's Phoenix
Contact Corporation's INTERBUS field bus to be born in 1986, used the
extremely unique lump frame transmission agreement, the effective data
output rate reached as high as 52%, had the formidable breakdown
diagnosis function; Long uses the twisted pair line non-
repeater transmitting range to amount to 12.8 kilometers; ;
The single master station may connect most reaches 255 from the
station; Scans 4,096 I/O time only is 7.8 milliseconds
(500Kbps). By its technical 先进? openness, the maturation
widely are suitable for the automobile, the machine, the thing flows
the equipment, the cigarette equipment and so on in each manufacturing
industry domain. Has more than 3,000 main lines equipment in the
whole world to produce the factory, the installment pitch point
surpasses 4 million, already became one of multitudinous factory first
choice automated systems. The INTERBUS field bus is the standard
field bus which international standard IEC 61,158, European standard
EN-50254, German standard DIN-19258 and Chinese mechanical industry
standard JB 10308-8 stipulated.
Today, took the field bus, PC-Based, the industry ethernet
technology forerunner, Phoenix took the lead to propose the
FIELDBUS+ETHERNET this new automation plan, the structure perfect
industrial enterprise has managed the control network, devoted to the
Chinese automation enterprise development. Along with the field
bus technology appearance and the development, each kind of field bus
market competition is day by day intense, in the IEC61158
international standard, eight kind of main lines (FF H1, FF-HSE,
Profibus, INTERBUS, P-NET, WorldFIP, ControlNet, SwiftNet) includes
the international standard, forms aspect which the many kinds of main
lines competes together.
INTERBUS took one of IEC61158 standards, widely applies in
profession and so on manufacturing industry, machine, uses in from the
sensor/execution to the computer control station signal connection, is
one kind of open serial main line system. The INTERBUS main line
agreement promoted in 1984, its main technical development for
Germany's Phoenix Contact Corporation, in 1986 started after the
automobile manufacture to succeed the use, very quickly obtained the
massive uses in each profession, at present the global amount of use
reaches 7.5 million pitch points.
1.1 INTERBUS main line structure
The INTERBUS main line including the long-distance main
line network and the local main line network, two kind of networks
transmissions same signal but the level is different. The
long-distance main line network uses in the long-distance range data
transfer, uses the RS-485 transmission, the long-distance network
selects the entire duplex method to carry on the communication, the
communication speed is 500k/s. The local main line network
connects in the long-distance network, in network main line terminal
BT (BUS Terminal) on BK module is responsible the long-distance
network data conversion for the local network data.
On the INTERBUS main line main equipment has main line terminal
BT (BUS Terminal) on BK module, the I/O module and installs in PC or
PLC on and so on in the position main equipment main line control
panel. The main line control panel is on the INTERBUS main line
main equipment, uses in to realize agreement control, wrong diagnosis,
configuration function and so on memory. The I/O module
realization in main line control panel and the sensor/execution
between receive and the data transmission, the data type which may
process including the machine manufacture and flow industry all
standard signals.
1. 2 INTERBUS main line agreement characteristic
(1) physical level
Structure: Hardware data link, all equipment when
configuration automatic address.
From: Distributional, the most long distance may reach
12.8km, the system installment expense is low.
Transmission medium: The twisted pair line, the optical
cable, the infrared and so on, the network may in each industry
environment joint, and may mix the use.
(2) data link layer
Agreement transmission: The entire duplex, the
lump frame (summation-frame) the structure, in network all I/O may
simultaneously renew the data.
Agreement arbitration: Does not have the arbitration, the
data may not have the disturbance continuously to transmit.
Data volume of goods handled: In 7.8ms may the read-write
4,096 data, the I/O data renewal time the time be quick several fold
which needs compared to the solution application logic.
Wrong verification: Each time the network joint all
carries on the CRC verification, transmits the data reliably, is
correct.
(3) applies the level
Diagnosis: May realize the network breakdown
localization, realizes the more good time, reduces the maintenance
cost, enhances the reliability.
Agreement compatibility: Supports the high speed digital
quantity, the simulation quantity and the client-sever information
transmission, may adapt the overwhelming majority control request.
I/O extension: May join 254 long-distance stands, 4,096
I/O has the better system adaptability.
(4) connectivity
Openness: More than 1,000 merchants provide 2,500
many kinds of compatible equipment, may supply the choice the supplier
are many, can provide the most superior disposition for the system.
Standard: DIN19258 EN50254 IEC61158, the system standard
is unified
(5) data transmission
The INTERBUS data transmission is similar to a
long-distance distance shift register, the data from the main line
control panel data register emigration, in the process network BK
module and the I/O module, also moves in the main line control panel
the register. In other words, the data moves the emigration from
the main line control panel data register is simultaneously carries on
(the entire duplex pattern). The INTERBUS data is the complete
frame transmission. Two kind of frame frequencies: ID
cycle frame and data cycle frame. ID cycle frame when INTERBUS
main line system initialization must read takes, generating process
image. After the ID cycle frame success execution, the INTERBUS
main line equipment interior cuts the data register, only carries out
the data frame, realizes the data transmission.
INTERBUS took one kind based on the scene main line system, has
the extremely quick communication speed in the I/O network: When
254 I/O, is away from when 12.8km is 15ms, when 300m is 3ms. In
the information management level, INTERBUS through the ethernet
realization interconnection, the I/O level (I/O level), the scene
level (field level), the control level (control level) uses the
INTERBUS system, the upper formation management level (management
level) connects and unites with internet, thus the user passable PC
machine digit dialing has accessed the net, carries on to the distant
place INTERBUS network equipment operates and gains the equipment
through the ethernet the data message.
2. control systems constitution
The electrolytic aluminium production is the typical
flow production pattern, the production project whether stable
directly does affect the electrolytic aluminium production smoothly
carries on. Therefore in the electrolytic aluminium production,
must the real-time examination production craft parameter, guarantee
the productive plan safely highly effective completes. The
Qinghai aluminum factory uses in the anode assembly the INTERBUS field
bus system and the remnant extremely processing workshop. This
workshop long 216m, prepares the new anode group for the electrolysis
workshop, soon in the electric tank dismounts remnantly extremely
transports to this workshop, after installs the station to hang to the
product puts the type to be hanging the conveyer (to hereafter refer
to as 悬链) on, by 悬链 lifts remnantly through the electrolyte
cleaning up, remnant extremely throws pill processing extremely in
turn, is remnant 极压 escapes, the phosphorus iron hoop pressure
escapes, the guide rod 矫直, the steel fingernail 清刷, spreads
the graphite, the guide rod 清刷, streamlined production station and
so on casting phosphorus pig iron, the anode group which the assembly
new goods come into the market. 悬链 the production line is
this workshop main body, in the electric tank trades is remnant
extremely hangs in this production stitch binding station to 悬链
on. 悬链 on is loaded with approximately 120 groups of cars,
on the car lifts is being remnant extremely, along 悬链 the advance,
carries on processing in the different work station, finally in
unloads the station winding to enter the casting work area, becomes
the qualified new anode group after the casting.
Because this project scene I/O 检?quantity many, also
distributes broadly, is away from, the field operation environment far
is bad. Northwest this factory because is situated, winter the
temperature may amount to below zero 20, the PLC protection rank quite
lowly, the general operating temperature for the zero degree to 40, is
very difficult to satisfy the scene adverse circumstance the request.
If puts PLC in the control room uses traditional the central
control, will consume the massive control cable and the electric cable
bridge, and enormously will increase the laying of cable and installs
the bridge the resilience, simultaneously will bring very big
inconvenient to the debugging, and will have the very major difficulty
to in the future maintenance.
In view of to above situation, in order to adapt the scene
environment, the craft and is advantageous for the maintenance
request, chooses one kind to control the sub- station number many, the
wiring simple, the maintenance convenient, the operating temperature
scope adapts the scene environment, the system safely is reliable,
diagnosis function formidable system. The INTERBUS system
besides may connect the Phoenix controller, but also may connect
ROCKWELL, SIEMENS, company's and so on SCHNEIDER PLC, uses a main line
electric cable connection, the total transmitting range long reaches
12.8KM, the operating temperature scope for below zero 25 to zero in
55, the formidable diagnosis function brings enormous convenient to
the maintenance.
The automatic work system uses Phoenix the INTERBUS main line,
uses the new Fieldline system, altogether has 89 pitch points, to
scene equipment work clear signal gathering control. According
to the project need, entire control system stands (OPS) by the
operator and the control station (PLC) two levels of constitutions.
System hardware structure drawing like chart 1 shows. This
system by the computer, PLC, the INTERBUS field bus is composed
multistage, the open style collection data acquisition and the
monitoring management system management system. Because in the
workshop the dust is big, possesses Phoenix the scene I/O template all
to select IP67 protection rank Fieldline integrated module INTERBUS
M12, through two M12 coupling connection main line, uses in to the
long-distance main line power supply, and provides the INTERBUS
correspondence. Fieldline the M12 module permission sensor and
the execution passes the standard M12 coupling to be connected.
Uses siemens SIMATIC S7-300 series PLC, CPU is 315-2DP.
Uses INTERBUS control panel IBS S7300 DSC-T in addition which 1
Phoenix company provides S7300 PLC and INTERBUS connects. The
system operation station selects grinds overseas Chinese laborer
controlling machine, monitors the control station all information,
carries on the demonstration, the operation, the record, the data
processing, the report form output, and may carry on operation and so
on control configuration and parameter revision according to the
certain jurisdiction. The system control station through the
control unit examination and the control equipment to the entire
production process implementation real-time control, and is connected
through the system bus AND-OPERATION station, transmits the scene to
the operation station the real-time data and to accept the management
and the control information which the operation stands. Programs
software for Phoenix's CMD, the configuration, the monitoring and
diagnosis software CMD, passes through the tool which in the system
entire life cycle uses, namely from the plan and the configuration, to
the system debugging, arrives in the system movement as well as the
maintenance diagnosis again. Regardless of you use are any type
controller, this software all is suitable. The unloading phase
like main line breaks down, makes a mistake the position to be allowed
and directly demonstrates in CMD in the circuit diagram Windows.
3rd, concluding remark
This system after scene debugging, user inspection,
INTERBUS system movement stable, completely satisfies the craft
control request, has the automaticity high, the reliability high, the
precision high, the response time is quick, the maintenance quantity
small characteristic. At the same time, raised the production
process automation level, improved the work condition, reduced the
production cost, caused the enterprise the automated level to step a
new stair, obtained user's high praise, extremely had the promoted
value.
Reference: "Phoenix Electricity Automated system
Handbook"
"INTERBUS User Handbook"
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