CN2786675Y

CN2786675Y - Programmable control module based on singlechip

Info

Publication number: CN2786675Y
Application number: CN 200520050021
Authority: CN
Inventors: 胡瑞华
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-01
Filing date: 2005-01-01
Publication date: 2006-06-07
Anticipated expiration: 2015-01-01

Abstract

The utility model relates to a programmable control module based on a monolithic computer, which comprises a printed circuit board, a shell and pins, wherein the printed circuit board is welded and provided with the monolithic computer, a reset circuit, a data storage circuit, an A/D circuit, a D/A circuit, an optical coupling input isolating drive circuit, an optical coupling output isolating drive circuit, a second serial communication circuit and a first serial communication circuit; the printed circuit board is encapsulated in the shell, and a plurality of metal pins are welded on the printed circuit board and extend out of the shell; module software is programmed by adopting a trapezoidal pattern mode, and thus, a user only need to weld the programmable control module on a personally designed printed board, the periphery of which is matched with simple electronic components so as to complete hardware design. The module is programmed by adopting software of the trapezoidal pattern, the software development for the user is very convenient, and the module has the advantages of low cost, small size and flexible use.

Description

A kind of SCM Based programmable control module

Technical field

The utility model relates to a kind of programmable control unit, particularly a kind of SCM Based programmable control module.

Background technology

Industry Control generally has the Single-chip Controlling of employing and adopts two kinds of patterns of Programmable Logic Controller (PLC) now, the so-called Single-chip Controlling that adopts generally is to be the control core with the single-chip microcomputer, in conjunction with some peripheral electronic circuitry, the own design circuit figure of designer printed wiring board, oneself adopts the language of single-chip microcomputer, as assembly language, C language etc. programs, the benefit of doing like this is with low cost, and dirigibility is big, but that shortcoming is a workload is big, construction cycle is long, some Programmable Logic Controllers (claiming PLC again) are arranged now on the market, and its feature is that hardware is carried out fully by manufacturer, and the designer need only link to each other PLC and get final product with electric elements such as peripheral contactors, its software programming is generally finished in the ladder diagram mode, the assembly language of this single-chip microcomputer, the C language is easily understood, so the PLC exploitation date is very short, use very convenient, but it is higher that shortcoming is a cost, and volume is big slightly, lacks dirigibility.

Summary of the invention

The purpose of this utility model provides a kind of SCM Based programmable control module, its product between single-chip microcomputer and programmable controller, it be circuit package such as single-chip microcomputer, digital quantity input circuit, analog quantity input circuit, output driving circuits in a housing, interrelate by the metal pins and the external world.

It comprises a printed circuit board 30, it is characterized in that welded and installed has single-chip microcomputer 1 and the reset circuit 2 that is connected with the corresponding port of this single-chip microcomputer 1 respectively, data storage circuitry 3, A/D circuit 4, D/A circuit 5, optocoupler input isolated drive circuit 6, optocoupler output isolated drive circuit 7, is used for linking to each other also first serial communication circuit 8 of ladder diagram software download to module with computing machine with being used for second serial communication circuit 9 of miscellaneous equipment communication on the described printed circuit board 30; It also comprises housing 10 and pin 20, and described printed circuit board 30 encapsulation are advanced in the housing 10, and a plurality of metal pins of described pin 20 are welded on printed circuit board 30 and stretch out outside the housing 10;

Described A/D circuit 4, D/A circuit 5, optocoupler input isolated drive circuit 6, optocoupler output isolated drive circuit 7 and first serial communication circuit 8 are respectively by corresponding ports and described single-chip microcomputer 1, and wherein said A/D circuit 4, D/A circuit 5, optocoupler input isolated drive circuit 6, optocoupler output isolated drive circuit 7, second serial communication circuit 9 link to each other with computer interface with external analog amount input circuit, analogue quantity output circuit, digital quantity input circuit, digital quantity output circuit by described pin 20 respectively with first serial communication circuit 8.

If single-chip microcomputer itself has reset circuit, data storage circuitry, A/D circuit, D/A circuit, so, can omit reset circuit 2, data storage circuitry 3, A/D circuit 4, D/A circuit 5.

Module software adopts the ladder diagram mode to work out, and like this, the user need only be welded on programmable control module in the self-designed printed board, and the periphery is equipped with simple electronic component can finish hardware design.The ladder diagram software class that programmable control module adopted is similar to PLC software, the user develops very convenient, and like this, the programmable control module hardware design is simpler than adopting single-chip microcomputer, more complicated slightly than PLC, software design is simpler than adopting single-chip microcomputer, and with the PLC basically identical, and cost is higher slightly than adopting single-chip microcomputer, well below PLC, it can accelerate designer's development progress greatly, obtains a balance of design economic benefit and time efficiency, reaches the optimality price ratio.Its cost is lower, and volume is little, uses flexibly.

Description of drawings

Fig. 1 is the utility model circuit theory synoptic diagram;

Fig. 2 is the utility model texture edge synoptic diagram;

Fig. 3 is the utility model structural base synoptic diagram;

Fig. 4 is a programming ladder diagram;

Fig. 5 is another programming ladder diagram.

Embodiment

As Figure 1-3, it comprises a printed circuit board 30, and welded and installed has single-chip microcomputer 1 and the reset circuit 2 that is connected with the corresponding port of this single-chip microcomputer 1 respectively, data storage circuitry 3, A/D circuit 4, D/A circuit 5, optocoupler input isolated drive circuit 6, optocoupler output isolated drive circuit 7, is used for linking to each other also first serial communication circuit 8 of ladder diagram software download to module with computing machine with being used for second serial communication circuit 9 of miscellaneous equipment communication on the printed circuit board 30; It also comprises housing 10 and pin 20, and described printed circuit board 30 encapsulation are advanced in the housing 10, and a plurality of metal pins of described pin 20 are welded on printed circuit board 30 and stretch out outside the housing 10;

PLC generally comprises whole block diagram, and programmable control module comprises the frame line with interior circuit, and the frame external circuit is designed voluntarily by the user, certainly, also can suitably increase or delete circuit according to different situations.

In metal or plastic casing, with gelatin substances such as resins circuit board is encapsulated into housing, metal pins is exposed, be beneficial to user's welding.

PC links to each other with the programming port of programmable control module by a cable, on PC, there is a programming software can draw ladder diagram, by drawing ladder diagram the logic that the user needs is drawn out, when drafting finishes, can download to program in the programmable control module, programmable control module just can break away from the PC operation, independently carries out various controls.

Fig. 4, Fig. 5 are two simple ladder diagrams, in1, in2, in3 are respectively three input relaies, and out 1 is an output relay, among Fig. 4, has only the in1 of working as, in2, in3 these three input relaies all, the out1 output relay could get electric, works as in1, in2, three any one dead electricity of input relay of in3, out1 output relay dead electricity.Among Fig. 5, work as in1, in2, these three input relaies of in3 any one get electricly, and the out1 output relay gets electric, works as in1, in2, three whole dead electricity of input relay of in3, out1 output relay dead electricity.

Claims

1, a kind of SCM Based programmable control module, it comprises a printed circuit board (30), it is characterized in that:

Described printed circuit board (30) is gone up welded and installed to be had single-chip microcomputer (1) and the reset circuit (2) that is connected with the corresponding port of this single-chip microcomputer (1) respectively, data storage circuitry (3), A/D circuit (4), D/A circuit (5), optocoupler input isolated drive circuit (6), optocoupler output isolated drive circuit (7), is used for linking to each other also first serial communication circuit (8) of ladder diagram software download to module with computing machine with being used for second serial communication circuit (9) of miscellaneous equipment communication;

It also comprises housing (10) and pin (20), and described printed circuit board (30) encapsulation is advanced in the housing (10), and a plurality of metal pins of described pin (20) are welded on printed circuit board (30) and stretch out outside the housing (10);

Described A/D circuit (4), D/A circuit (5), optocoupler input isolated drive circuit (6), optocoupler output isolated drive circuit (7), second serial communication circuit (9) and first serial communication circuit (8) are respectively by corresponding ports and described single-chip microcomputer (1), wherein said A/D circuit (4), D/A circuit (5), optocoupler input isolated drive circuit (6), optocoupler output isolated drive circuit (7) and first serial communication circuit (8) are respectively by described pin (20) and external analog amount input circuit, analogue quantity output circuit, the digital quantity input circuit, digital quantity output circuit links to each other with computer interface.