CN103246230A - PLC (programmable logic controller) system - Google Patents
PLC (programmable logic controller) system Download PDFInfo
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- CN103246230A CN103246230A CN201310142676XA CN201310142676A CN103246230A CN 103246230 A CN103246230 A CN 103246230A CN 201310142676X A CN201310142676X A CN 201310142676XA CN 201310142676 A CN201310142676 A CN 201310142676A CN 103246230 A CN103246230 A CN 103246230A
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Abstract
The invention provides a PLC (programmable logic controller) system, which comprises a power supply, an on-off input unit, a microprocessor CPU (Central Processing Unit), an on-off output unit, an outside arranged I (Input)/O (Output) interface, a memory and an I/O expansion interface , wherein the power supply is electrically connected with the microprocessor CPU; the on-off input unit is electrically connected with the on-off output unit and the microprocessor CPU; the microprocessor CPU is bi-directionally and electrically connected with the external I/O interface, the memory and the I/O expansion interface respectively; and a short circuit detecting module is connected onto the on-off output unit. The PLC system provided by the invention can automatically detect modules and perform the output protecting function through arranging the short circuit detecting module on the on-off output unit; the short circuit detecting module is butted with each circuit of the output unit, is connected with the CPU seamlessly, and is communicated with the CPU, and the detecting rate reaches 100 MKB/S; and meanwhile, the load-carrying capacity is strengthened, the PLC system is safe and durable, and can be used conveniently.
Description
Technical field
The present invention relates to a kind of programable controller system.
Background technology
Programmable logic controller (PLC) (Programmable Logic Controller at present,, PLC), it adopts a class programmable memory, be used for its internally stored program, actuating logic computing, sequential control, regularly, user oriented instructions such as counting and arithmetical operation, and control various types of machineries or production run by numeral or analog I/O; Because element is many, so the programmable logic controller (PLC) shape of making is also relatively large, and antijamming capability is also poor, and carrying load ability is not strong, and the design of system, installation and debugging are more loaded down with trivial details, have increased working pressure greatly.
Summary of the invention
At the deficiency that prior art exists, the object of the present invention is to provide a kind of programable controller system simple, that programming is convenient, multiple functional, reliability is high, antijamming capability is strong that uses.
Technical scheme of the present invention is achieved in that a kind of programable controller system, comprises power supply, switching value input block, microprocessor CPU unit, switching value output unit, peripheral hardware I/O interface, storer and I/O expansion interface; Described power supply and microprocessor CPU unit electrically connect; Described switching value input block and switching value output unit and microprocessor CPU unit electrically connect; Described microprocessor CPU unit respectively with described peripheral hardware I/O interface, storer and the two-way electric connection of I/O expansion interface; Be connected with the short-circuit detecting module on the described switching value output unit.
Further, described switching value input block: on-the-spot various switching signals are become the inner standard signal that can accept processing of PLC, be divided into continuous input cell and AC input cell.
Further, described switching value output unit: the various switching signals that the internal signal of PLC converted to on-the-spot topworks.
Further, described programable controller system also comprises programmable device; Described programmable device and peripheral hardware I/O interface electrically connect.
Further, be provided with arithmetical unit and controller in the described microprocessor CPU unit.
A kind of programable controller system of the present invention is by being provided with short-circuit detecting module detection module and execution output protecting function automatically at the switching value output unit, dock with every road of output unit, the seamless link CPU element, between mutually communication, speed reaches 100MKB/S; Carrying load ability is strengthened, and safety durable is easy to use.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the modular structure synoptic diagram of a kind of programable controller system of the present invention.
1, switching value input block; 2, microprocessor CPU; 3, power supply; 4, switching value output unit; 5, short-circuit detecting module; 6, programmable device; 7, peripheral hardware I/O interface; 8, storer; 9, I/O expansion interface.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1: a kind of programable controller system, comprise power supply 3, switching value input block 1, microprocessor CPU unit 2, switching value output unit 4, peripheral hardware I/O interface 7, storer 8 and I/O expansion interface 9; Described power supply 3 electrically connects with microprocessor CPU unit 2; Described switching value input block 1 electrically connects with switching value output unit 4 and microprocessor CPU unit 2; Described microprocessor CPU unit 2 respectively with described peripheral hardware I/O interface 7, storer 8 and the 9 two-way electric connections of I/O expansion interface; Be connected with short-circuit detecting module 5 on the described switching value output unit 4.
Function receives and storage is keyed in by programmable device user program and data that above-mentioned a kind of programable controller system, described microprocessor CPU unit are given according to system program, grammar mistake appears in the duty of diagnostic circuit and PLC internal circuit and the programming, work with scan mode, the part thing also receives on-the-spot input signal, always read and carry out user program gradually from storer Huang, operations such as the logical OR of finishing the user program defined counts are according to operation result control output.
Above-mentioned a kind of programable controller system, described storer 8 are divided into read only memory ROM, and random access memory ram.
Above-mentioned a kind of programable controller system, described power supply are to convert ac voltage signal to microprocessor, storer and the needed direct supply of Input/Output Device card work, this programable controller system can promote carrying load ability most 5-8A, is 5-8 times of other brands on the market.
Above-mentioned a kind of programable controller system, described programmable device 6 can be sent into user program in the storer 8 of microprocessor CPU unit 2, can also use programmable device 6 scrutiny programs, update routine; Utilize the duty of all right monitor microprocessors CPU element 2 of i6.
Above-mentioned a kind of programable controller system, described switching value input block 1: on-the-spot various switching signals are become the inner standard signal that can accept processing of PLC, be divided into continuous input cell and AC input cell.
Above-mentioned a kind of programable controller system, described switching value output unit 4: the various switching signals that the internal signal of PLC converted to on-the-spot topworks.
Above-mentioned a kind of programable controller system, described programable controller system also comprise programmable device 6; Described programmable device 6 electrically connects with peripheral hardware I/O interface 7.
Further, be provided with arithmetical unit 21 and controller 22 in the described microprocessor CPU unit 2.
The course of work of above-mentioned a kind of programable controller system: after 2 energisings of microprocessor CPU unit, just under the monitoring of system program, by permanent order the various tasks of internal system are had a blood test again and again, judge and execution, be a constantly sequential scanning process of circulation at this process nature, a scan round process is called the surface sweeping cycle, and microprocessor CPU unit 2 will be carried out following six tasks basically in a surface sweeping cycle:
A: the operation monitoring task, in order to guarantee system's reliably working, 2 inside, microprocessor CPU unit are provided with the system monitoring timer, and the time set value of this timer is generally 2～3 times of scan period, is generally 100～200ms.
B: programmable device 6 be the programable controller system external unit and, be that the user is input to application program in the programable controller system or application programs carries out that on-line operation monitors and revise all needing to use programmable device 6; Programmable device 6 exchanges control to programable controller system after finishing Processing tasks or reaching the stipulated time of message exchange then.
C: programable controller system and digital processing unit exchange message task.
D: programable controller system and outer equipment exchange information task; If do not connect external unit, then this task is skipped.
E: carry out user program and appoint; Whole control functions of system all realize in this task.
F: I/O information handling task.
A kind of programable controller system of the present invention is by being provided with short-circuit detecting module detection module and execution output protecting function automatically at the switching value output unit, dock with every road of output unit, the seamless link CPU element, between mutually communication, speed reaches 100MKB/S; Carrying load ability is strengthened, and safety durable is easy to use.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a programable controller system comprises power supply, switching value input block, microprocessor CPU unit, switching value output unit, peripheral hardware I/O interface, storer and I/O expansion interface; Described power supply and microprocessor CPU unit electrically connect; Described switching value input block and switching value output unit and microprocessor CPU unit electrically connect; Described microprocessor CPU unit respectively with described peripheral hardware I/O interface, storer and the two-way electric connection of I/O expansion interface; It is characterized in that: be connected with the short-circuit detecting module on the described switching value output unit.
2. programable controller system according to claim 1 is characterized in that: described switching value input block: on-the-spot various switching signals are become the inner standard signal that can accept processing of PLC, be divided into continuous input cell and AC input cell.
3. programable controller system according to claim 1 is characterized in that: described switching value output unit: the various switching signals that the internal signal of PLC converted to on-the-spot topworks.
4. programable controller system according to claim 1, it is characterized in that: described programable controller system also comprises programmable device; Described programmable device and peripheral hardware I/O interface electrically connect.
5. programable controller system according to claim 1, it is characterized in that: described microprocessor CPU is provided with arithmetical unit and controller in the unit.
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| CN201310142676.XA CN103246230B (en) | 2013-04-22 | 2013-04-22 | A kind of programable controller system |
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| CN201310142676.XA CN103246230B (en) | 2013-04-22 | 2013-04-22 | A kind of programable controller system |
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| CN103246230A true CN103246230A (en) | 2013-08-14 |
| CN103246230B CN103246230B (en) | 2016-08-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540376A (en) * | 2016-02-18 | 2016-05-04 | 广西瑞翔电梯工程有限公司 | Detecting device of short circuiting of loop of elevator hall door |
| CN108153226A (en) * | 2017-12-22 | 2018-06-12 | 安徽杰智智能科技有限公司 | A kind of PLC device of novel real-time, interactive |
| CN109896430A (en) * | 2018-09-15 | 2019-06-18 | 杭州太度五维建筑科技有限公司 | A kind of manual intelligent control tower crane system and its PLC controller scan method |
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| CN2301790Y (en) * | 1997-03-20 | 1998-12-23 | 王光伟 | Digital output port protector for programmable controller |
| EP0977100A1 (en) * | 1998-07-30 | 2000-02-02 | Robert Bosch Gmbh | Safety device for a programmable logic controller |
| CN2901383Y (en) * | 2005-12-23 | 2007-05-16 | 上海派恩科技有限公司 | Programmable controller for CAN bus |
| CN101162389A (en) * | 2007-08-07 | 2008-04-16 | 广西工学院 | Universal small-sized programmable controller and control method thereof |
| CN201975763U (en) * | 2011-03-23 | 2011-09-14 | 捷飞特（大连）工业技术有限公司 | Programmable logic controller (PLC) control system of electric motor |
| CN102768505A (en) * | 2012-07-09 | 2012-11-07 | 宝鸡石油机械有限责任公司 | Digital signal driving interface card with isolation function and bypass based on programmable logic controller (PLC) |
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2013
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2301790Y (en) * | 1997-03-20 | 1998-12-23 | 王光伟 | Digital output port protector for programmable controller |
| EP0977100A1 (en) * | 1998-07-30 | 2000-02-02 | Robert Bosch Gmbh | Safety device for a programmable logic controller |
| CN2901383Y (en) * | 2005-12-23 | 2007-05-16 | 上海派恩科技有限公司 | Programmable controller for CAN bus |
| CN101162389A (en) * | 2007-08-07 | 2008-04-16 | 广西工学院 | Universal small-sized programmable controller and control method thereof |
| CN201975763U (en) * | 2011-03-23 | 2011-09-14 | 捷飞特（大连）工业技术有限公司 | Programmable logic controller (PLC) control system of electric motor |
| CN102768505A (en) * | 2012-07-09 | 2012-11-07 | 宝鸡石油机械有限责任公司 | Digital signal driving interface card with isolation function and bypass based on programmable logic controller (PLC) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540376A (en) * | 2016-02-18 | 2016-05-04 | 广西瑞翔电梯工程有限公司 | Detecting device of short circuiting of loop of elevator hall door |
| CN105540376B (en) * | 2016-02-18 | 2018-08-03 | 广西瑞翔电梯工程有限公司 | A kind of hoistway door circuit short circuit detection device |
| CN108153226A (en) * | 2017-12-22 | 2018-06-12 | 安徽杰智智能科技有限公司 | A kind of PLC device of novel real-time, interactive |
| CN109896430A (en) * | 2018-09-15 | 2019-06-18 | 杭州太度五维建筑科技有限公司 | A kind of manual intelligent control tower crane system and its PLC controller scan method |
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| Publication number | Publication date |
|---|---|
| CN103246230B (en) | 2016-08-31 |
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Effective date of registration: 20210104 Address after: 315300 No.1 Xinxing Road, Zonghan street, Xinxing Industrial Cluster District, Cixi City, Ningbo City, Zhejiang Province Patentee after: ZHEJIANG LICHUANG AUTOMATION TECHNOLOGY Co.,Ltd. Address before: 315300 Room 302, No. 338, middle north 2nd Ring Road, Gutang street, Cixi City, Ningbo City, Zhejiang Province Patentee before: CIXI LICHUANG SOFTWARE TECHNOLOGY Co.,Ltd. |
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