CN103072897A - Programmable logic controller (PLC) communication method of gantry crane of decentralized periphery (DP) bus framework - Google Patents
Programmable logic controller (PLC) communication method of gantry crane of decentralized periphery (DP) bus framework Download PDFInfo
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- CN103072897A CN103072897A CN2013100464586A CN201310046458A CN103072897A CN 103072897 A CN103072897 A CN 103072897A CN 2013100464586 A CN2013100464586 A CN 2013100464586A CN 201310046458 A CN201310046458 A CN 201310046458A CN 103072897 A CN103072897 A CN 103072897A
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Abstract
The invention discloses a programmable logic controller (PLC) communication method of a gantry crane of a decentralized periphery (DP) bus framework. The PLC communication method the gantry crane of the DP bus framework is characterized in that a DP field bus is connected by slip rings between a PLC master station and a PLC substation of a PLC control system of the crane to form a PLC communication network; when an upper electrical room horizontally rotates, a control signal of the PLC master station is transmitted to the PLC substation by the DP field bus connected by the slip rings to realize PLC communication between the upper electrical room and a lower crane machine room of the gantry crane in the manner that the DP field bus is connected by the slip rings. Compared with the prior art, the PLC communication method of the gantry crane of the DP bus framework is simple in structure, high in compatibility and high in reliability. Control cables and control slip rings are effectively reduced, the engineering cabling cost is reduced, and further, the control level of the crane is improved.
Description
Technical field
The present invention relates to technical field of industrial automatic control, especially a kind of high pedestal jib crane plc communication method of DP bus architecture.
Background technology
The shipbuilding high pedestal jib crane is the important production facilities of shipyard, development along with the automation of industry technology, frequency converter, the modern control convenience such as PLC progressively replaces traditional control relay circuit, wherein PLC adopts fieldbus, becomes technological trend such as PROFIBUS-DP communication (hereinafter to be referred as DP communication).
Because the slip ring of rotation power supply being arranged in the structure of shipbuilding high pedestal jib crane, and traveling gear electrical motor quantity is more, the control signals such as brake, electrical motor all need enter the PLC entrance point and control, the PLC control box is placed on the electric machine room that is positioned at slip ring top, the upper and lower control line of slip ring just need to connect by slip ring, therefore the switching value control signal point of crane mechanism is increased to 3 ~ 4 times of traditional relay control circuit, and required control slip ring quantity reaches 40 ~ 60 rings.And DP communication has specific requirement to cable line, and the DP bus also can't be by common slip ring transmission.The increase of signal location, be used for connecting the also thereupon increase of number of cables of cart control housing and electrical house PLC, the construction wiring is very inconvenient, greatly kept within bounds the application of field bus communication technology on the shipbuilding high pedestal jib crane, needed so that high pedestal jib crane can't adopt the DP bus communication to adopt easily to be disturbed or expensive radio communication and other private communication devices.
Summary of the invention
A kind of high pedestal jib crane that the objective of the invention is to design for the deficiencies in the prior art connects the method for DP bus with slip ring, adopt DP bus architecture plc communication network, realize that failure-free high pedestal jib crane top electrical house is connected with the DP fieldbus of bottom cart machine room, have simple in structure, compatible good, reliability is high, has greatly reduced control cables and control slip ring quantity, reduce the engineering wiring cost, further improve the crane control level.
The object of the present invention is achieved like this: adopt slip ring to be connected the plc communication network of DP fieldbus between a kind of high pedestal jib crane plc communication method of DP bus architecture, the PLC main website that is characterized in hoisting crane PLC control system and PLC substation; Described PLC main website is arranged on the top electrical house, the external main website of its CPU guide rail signal amplifier; Described PLC substation is arranged on bottom cart machine room, the external substation guide rail of its CPU signal amplifier; Described slip ring is the sliding connector of two-way control, its upper/lower terminal is connected with substation guide rail signal amplifier with main website guide rail signal amplifier respectively, its middle and upper part electrical house can horizontally rotate, the DP fieldbus that is connected by slip ring is transferred to the PLC substation with the control signal of PLC main website, realizes the DP field bus communication that high pedestal jib crane top electrical house and bottom cart machine room are connected by slip ring.
Described main website guide rail signal amplifier is that integrated DP port or DP bus functionality module are connected with the CPU of PLC main website.
Described substation guide rail signal amplifier is that integrated DP port or DP bus functionality module are connected with the CPU of PLC substation.
The present invention compared with prior art has simple in structure, and compatible good, reliability is high, has effectively reduced control cables and control slip ring quantity, reduces the engineering wiring cost, further improves the crane control level.
Description of drawings
Fig. 1 is the invention process illustration.
The specific embodiment
Consult accompanying drawing 1, adopt slip ring 4 to connect the DP fieldbus between PLC main website 2 of the present invention and the PLC substation 6, consist of the plc communication network of high pedestal jib crane top electrical house 1 and bottom cart machine room 7; Described PLC main website 2 is arranged on top electrical house 1, the external main website of its CPU guide rail signal amplifier 3; Described PLC substation 6 is arranged on bottom cart machine room 7, the external substation guide rail of its CPU signal amplifier 5; Described slip ring 4 is the sliding connector of two-way control, its upper/lower terminal is connected with substation guide rail signal amplifier with main website guide rail signal amplifier 3 respectively and is connected, top electrical house 1 is when horizontally rotating, connect the DP fieldbuss by slip ring 4 control signal of PLC main website 2 is transferred to PLC substation 6, realize that high pedestal jib crane top electrical house 1 and bottom cart machine room 7 are connected the plc communication of DP fieldbus with slip ring 4.
Above-mentioned main website guide rail signal amplifier 3 is that integrated DP port or DP bus functionality module are connected with the CPU of PLC master station 2; Substation guide rail signal amplifier 5 is that integrated DP port or DP bus functionality module are connected with the CPU of PLC substation 6.
The present invention is such installation, use: the control system that PLC main website 2 and main website guide rail signal amplifier 3 is arranged on the top electrical house 1 of high pedestal jib crane, PLC substation 6 and substation guide rail signal amplifier 5 are arranged on the control system of the bottom cart machine room 7 of high pedestal jib crane, two-way control slip ring 4 is arranged on, on the rotating mechanism of bottom machine room, two-way control slip ring 4 is connected with substation guide rail signal amplifier with main website guide rail signal amplifier 3 respectively by communication cable and is connected, wherein high pedestal jib crane top electrical house 1 can be done 360 ° and horizontally rotates, connect the DP fieldbuss by two-way control slip ring 4 control signal of PLC main website 2 is transferred to PLC substation 6, realize that high pedestal jib crane top electrical house 1 and bottom cart machine room 7 are connected the plc communication of DP fieldbus with slip ring 4.The present invention can be used for the shipbuilding high pedestal jib crane of different size, and construction and installation are very convenient, and cost is low, stable performance.
Claims (3)
1. adopt slip ring to be connected the plc communication network of DP fieldbus between the high pedestal jib crane plc communication method of a DP bus architecture, the PLC main website that it is characterized in that hoisting crane PLC control system and PLC substation; Described PLC main website is arranged on the top electrical house, the external main website of its CPU guide rail signal amplifier; Described PLC substation is arranged on bottom cart machine room, the external substation guide rail of its CPU signal amplifier; Described slip ring is the sliding connector of two-way control, its upper/lower terminal is connected with substation guide rail signal amplifier with main website guide rail signal amplifier respectively, the top electrical house is when horizontally rotating, the DP fieldbus that is connected by slip ring is transferred to the PLC substation with the control signal of PLC main website, realizes that high pedestal jib crane top electrical house and bottom cart machine room are connected the plc communication of DP fieldbus with slip ring.
2. the high pedestal jib crane plc communication method of described DP bus architecture according to claim 1 is characterized in that described main website guide rail signal amplifier and the CPU of PLC main website are that integrated DP port or DP bus functionality module are connected.
3. the high pedestal jib crane plc communication method of described DP bus architecture according to claim 1 is characterized in that described substation guide rail signal amplifier and the CPU of PLC substation are that integrated DP port or DP bus functionality module are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100464586A CN103072897A (en) | 2013-02-06 | 2013-02-06 | Programmable logic controller (PLC) communication method of gantry crane of decentralized periphery (DP) bus framework |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100464586A CN103072897A (en) | 2013-02-06 | 2013-02-06 | Programmable logic controller (PLC) communication method of gantry crane of decentralized periphery (DP) bus framework |
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| CN2013100464586A Pending CN103072897A (en) | 2013-02-06 | 2013-02-06 | Programmable logic controller (PLC) communication method of gantry crane of decentralized periphery (DP) bus framework |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883621A (en) * | 2016-06-21 | 2016-08-24 | 中船第九设计研究院工程有限公司 | Distributed weighing system on basis of DP bus for large gantry cranes |
| CN107285184A (en) * | 2017-08-22 | 2017-10-24 | 中船第九设计研究院工程有限公司 | A kind of distributed large-sized gantry crane weighing system |
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| JPH10101291A (en) * | 1996-09-27 | 1998-04-21 | Kumamoto Techno Porisu Zaidan | Heavy machinery work plan repairing supporter |
| DE10001023A1 (en) * | 2000-01-13 | 2001-07-19 | Siemens Ag | Load transporting system for containers - has personal computer with target guidance program and sensor system for detecting position of load |
| CN101505322A (en) * | 2009-03-13 | 2009-08-12 | 内蒙古包钢钢联股份有限公司 | Application of network in slip ring communication |
| CN101704473A (en) * | 2009-11-11 | 2010-05-12 | 甘肃省电力公司刘家峡水电厂 | Main lifting parallel operation height balance correcting system of 400-ton bridge crane |
| CN101723251A (en) * | 2009-12-29 | 2010-06-09 | 太原重工股份有限公司 | Electrical control system of crane of nuclear power plant |
| CN202131030U (en) * | 2011-01-07 | 2012-02-01 | 武汉船用机械有限责任公司 | Windmill installation vessel revolving crane adopting Profibus-DP network |
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2013
- 2013-02-06 CN CN2013100464586A patent/CN103072897A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10101291A (en) * | 1996-09-27 | 1998-04-21 | Kumamoto Techno Porisu Zaidan | Heavy machinery work plan repairing supporter |
| DE10001023A1 (en) * | 2000-01-13 | 2001-07-19 | Siemens Ag | Load transporting system for containers - has personal computer with target guidance program and sensor system for detecting position of load |
| CN101505322A (en) * | 2009-03-13 | 2009-08-12 | 内蒙古包钢钢联股份有限公司 | Application of network in slip ring communication |
| CN101704473A (en) * | 2009-11-11 | 2010-05-12 | 甘肃省电力公司刘家峡水电厂 | Main lifting parallel operation height balance correcting system of 400-ton bridge crane |
| CN101723251A (en) * | 2009-12-29 | 2010-06-09 | 太原重工股份有限公司 | Electrical control system of crane of nuclear power plant |
| CN202131030U (en) * | 2011-01-07 | 2012-02-01 | 武汉船用机械有限责任公司 | Windmill installation vessel revolving crane adopting Profibus-DP network |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883621A (en) * | 2016-06-21 | 2016-08-24 | 中船第九设计研究院工程有限公司 | Distributed weighing system on basis of DP bus for large gantry cranes |
| CN107285184A (en) * | 2017-08-22 | 2017-10-24 | 中船第九设计研究院工程有限公司 | A kind of distributed large-sized gantry crane weighing system |
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Application publication date: 20130501 |