CN204287956U - A kind of PLC debugging instrument with pulse output function - Google Patents
A kind of PLC debugging instrument with pulse output function Download PDFInfo
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- CN204287956U CN204287956U CN201420713371.XU CN201420713371U CN204287956U CN 204287956 U CN204287956 U CN 204287956U CN 201420713371 U CN201420713371 U CN 201420713371U CN 204287956 U CN204287956 U CN 204287956U
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Abstract
The utility model discloses a kind of PLC debugging instrument with pulse output function, comprise input state instruction interface, current source and voltage source, export the output switch parameter interface that control interface is electrically connected described PLC, current source is electrically connected the analog input interface of described PLC, voltage source is electrically connected the analog output interface circuit of described PLC, also include pulse generating module, described pulse generating module comprises the square-wave generator and amplitude adjustment potentiometer that are arranged on input state instruction interface, the output terminal of described square-wave generator connects the input end of amplitude adjustment potentiometer, the output terminal of amplitude adjustment potentiometer is connected with first and second input ports of gauge tap with the analog quantity of PLC by current-limiting circuit respectively successively.The utility model achieves special function such as the counter of debugging PLC, step actuator, servo-driver and analog encoder etc.Meanwhile, also achieve matching coding device input 5V ~ 24V between continuously adjustabe.
Description
Technical field
The utility model relates to electric adjustment instrument field, particularly relates to a kind of PLC debugging instrument with pulse output function.
Background technology
Along with the development of industrial automation, the application of PLC is more and more extensive.The numeral input of PLC, output signal mainly contain two kinds: i.e. source type and leakage type.When two kinds of signals connect PLC, because the difference of polarity is also different for inputing or outputing the method being connected to PLC.
In automatic field, need to force input and output, to facilitate the debugging of program in a program.Therefore this mode timeliness and operability is forced to receive many restrictions and inconvenience to input and output in a program; Simultaneously for different peripherals, PLC part inputs or outputs and also needs to carry out wiring by source type and leakage type mode to the polarity of input power.
The high speed of PLC itself is inputted, the application of the scrambler of counter and periphery, do not have peripherals then cannot carry out.Existing PLC debugging instrument does not have continuously adjustable pulse signal, cannot debug the control of counter, stepper motor and servomotor.When being applied to PLC debugged program, partial function still can not meet actual requirement.When debugged program, namely lose time, also affect development progress and the debugging cycle of program.
Utility model content
The purpose of this utility model is to provide a kind of PLC debugging instrument with pulse output function, can debug while conveniently can providing analog encoder signals to the control of counter, stepper motor and servomotor.
The utility model adopts following technical proposals:
There is a PLC debugging instrument for pulse output function, for debugging PLC scene, comprise On-off signal signal, simulated field are provided proximity switch, button, selector switch, relay contact switching signal input state instruction interface, the current source of the simulating signal of the electric current of analog input signal, simulated field temperature, pressure, flow, motor is provided, and analog quantity output signals is provided, simulate the actuator that described PLC drives, the voltage source of the simulating signal of solenoid valve, export the output switch parameter interface that control interface is electrically connected described PLC, current source is electrically connected the analog input interface of described PLC, voltage source is electrically connected the analog output interface circuit of described PLC, also include pulse generating module, described pulse generating module comprises the square-wave generator and amplitude adjustment potentiometer that are arranged on input state instruction interface, the output terminal of described square-wave generator connects the input end of amplitude adjustment potentiometer, the output terminal of amplitude adjustment potentiometer is connected with first and second input ports of gauge tap with the analog quantity of PLC by current-limiting circuit respectively successively.
Described input state instruction interface is made up of eight input switches.
Described input switch is toggle switch.
The utility model adds at input port that square-wave generator provides 0.5Hz ~ 120Hz continuously adjustabe, dutycycle is the square-wave pulse signal of 50%, achieves the function that the counter of debugging PLC, step actuator, servo-driver and analog encoder etc. are special.Meanwhile, also achieve matching coding device input 5V ~ 24V varying level between continuously adjustabe.
Accompanying drawing explanation
Fig. 1 is the utility model schematic block circuit diagram;
Fig. 2 is the circuit theory diagrams of pulse generating module described in the utility model.
Embodiment
As shown in Figure 1, a kind of PLC debugging instrument with pulse output function, for debugging PLC scene, comprise On-off signal signal, simulated field are provided proximity switch, button, selector switch, relay contact switching signal input state instruction interface, the current source of the simulating signal of the electric current of analog input signal, simulated field temperature, pressure, flow, motor is provided, and analog quantity output signals is provided, simulate the actuator that described PLC drives, the voltage source of the simulating signal of solenoid valve, export the output switch parameter interface that control interface is electrically connected described PLC, also include pulse generating module, described pulse generating module comprises the square-wave generator and amplitude adjustment potentiometer that are arranged on input state instruction interface, the output terminal of described square-wave generator connects the input end of amplitude adjustment potentiometer, the output terminal of amplitude adjustment potentiometer is connected with first input end I1 with I0 second input port of the analog quantity of PLC with gauge tap by current-limiting circuit respectively successively.
Described input state instruction interface is made up of eight input switches, and described input switch is toggle switch, and other keyswitch, single-pole single-throw switch (SPST) also can realize.
As shown in Figure 2, square-wave generator described in the utility model is consisted of oscillatory circuit 120Hz impulse source, and this is existing product, is not specifically introducing its inner structure; Its oscillation frequency is 0.5Hz ~ 120Hz continuously adjustabe, dutycycle is 50%, amplitude is the square-wave pulse signal of 24V, after amplitude adjustment potentiometer change amplitude, it is adjustable that amplitude becomes 0 ~ 24V, and its output terminal divides two-way to export respectively by these two Switch Controller of S10, S11 outward, wherein circuit is provided with current-limiting resistance, concrete current-limiting resistance R1 is connected with the second input port I0 mouth of PLC by switch S 10, and current-limiting resistance R2 is connected with the first input end mouth I1 of PLC by switch S 11.Wherein when toggle switch S0, the toggle switch S1 of eight input switches disconnect, now turn on-switch S10, will at the second input port I0 mouth input square-wave pulse; And turn on-switch S11, then will input square-wave pulse at first input end mouth I1, the utility model also can simultaneously turn on-switch S10, S11, simultaneously at the square-wave pulse that input port I0, I1 mouth input two-way is identical.The square wave frequency adjustable of square-wave generator in the utility model, when low frequency, can debug counter, and can see count status; When high-frequency, step actuator, servo-driver isopulse control type controller can be debugged, simultaneously also can the square-wave waveform that exports of analog encoder, expand the function of debugging instrument, improve practicality and the convenience of this instrument.
It should be noted that above-mentioned instantiation only expresses embodiment of the present utility model, therefore can not be interpreted as the restriction of the utility model the scope of the claims.Protection domain of the present utility model should by claim and equivalents thereof.
The utility model, except most of signal source that can provide in PLC debug process, also can be given and use the power supply that Power Level is 24VDC directly to power to PLC.Simplify and use PLC power supply problem.This instrument has: output 0.5Hz ~ 120Hz continuously adjustabe, dutycycle are the square-wave pulse signal of 50%.And by switch S 10, S11, be connected on I0, I1 two input ports of PLC, be convenient to Puled input when debugging.In addition, the utility model also has two kinds of analog outputs, the continuously adjustable analog voltage of the 0 ~ 10V provided by voltage source.The continuously adjustable analog current of the 0 ~ 20mA provided by current source, the test for PLC analog quantity uses.
The utility model solves the weak point of the existence of other debugging instrument, concrete: the utility model provides the continuously adjustable pulse signal of 0.5Hz ~ 120Hz, achieves the function that the counter of debugging PLC, step actuator, servo-driver and analog encoder etc. are special.Meanwhile, additionally provide the level signal problem of the different brackets of matching coding device input, varying level refers to continuously adjustabe between 5V ~ 24V here.
Claims (3)
1. there is a PLC debugging instrument for pulse output function, for debugging PLC scene, comprise On-off signal signal, simulated field are provided proximity switch, button, selector switch, relay contact switching signal input state instruction interface, the current source of the simulating signal of the electric current of analog input signal, simulated field temperature, pressure, flow, motor is provided, and analog quantity output signals is provided, simulate the actuator that described PLC drives, the voltage source of the simulating signal of solenoid valve, export the output switch parameter interface that control interface is electrically connected described PLC, current source is electrically connected the analog input interface of described PLC, voltage source is electrically connected the analog output interface circuit of described PLC, it is characterized in that: also include pulse generating module, described pulse generating module comprises the square-wave generator and amplitude adjustment potentiometer that are arranged on input state instruction interface, the output terminal of described square-wave generator connects the input end of amplitude adjustment potentiometer, the output terminal of amplitude adjustment potentiometer is connected with first and second input ports of gauge tap with the analog quantity of PLC by current-limiting circuit respectively successively.
2. PLC debugging instrument according to claim 1, is characterized in that: described input state instruction interface is made up of eight input switches.
3. PLC debugging instrument according to claim 2, is characterized in that: described input switch is toggle switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420713371.XU CN204287956U (en) | 2014-11-25 | 2014-11-25 | A kind of PLC debugging instrument with pulse output function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420713371.XU CN204287956U (en) | 2014-11-25 | 2014-11-25 | A kind of PLC debugging instrument with pulse output function |
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| CN204287956U true CN204287956U (en) | 2015-04-22 |
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| CN201420713371.XU Active CN204287956U (en) | 2014-11-25 | 2014-11-25 | A kind of PLC debugging instrument with pulse output function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109947087A (en) * | 2019-04-17 | 2019-06-28 | 湖南优利泰克自动化系统有限公司 | PLC input/output module test method, device, system and computer equipment |
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2014
- 2014-11-25 CN CN201420713371.XU patent/CN204287956U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109947087A (en) * | 2019-04-17 | 2019-06-28 | 湖南优利泰克自动化系统有限公司 | PLC input/output module test method, device, system and computer equipment |
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