CN214625640U - PLC/DCS digital quantity input terminal module - Google Patents
PLC/DCS digital quantity input terminal module Download PDFInfo
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- CN214625640U CN214625640U CN202120854046.5U CN202120854046U CN214625640U CN 214625640 U CN214625640 U CN 214625640U CN 202120854046 U CN202120854046 U CN 202120854046U CN 214625640 U CN214625640 U CN 214625640U
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Abstract
The utility model discloses a PLC DCS digital quantity input terminal module, including power supply terminal, the signal of telecommunication outflow terminal, the signal of telecommunication inflow terminal and the plug that are used for connecting the power, the positive wire that passes through of power is connected with components and parts, the signal of telecommunication outflow terminal is being connected through first fuse to the wire, the parallelly connected fault indication lamp that is provided with in first fuse department, the signal of telecommunication inflow terminal is through the articulate of signal indication lamp with the plug, and load equipment is connected through plug and power negative pole and is formed the return circuit, be provided with power setting indicator and second fuse between the positive pole and the negative pole of power. The utility model discloses not only can effectively protect system power and control system, be convenient for seek the fault point moreover, improve maintenance quality, shorten maintenance time.
Description
Technical Field
The utility model relates to an electrical equipment field, concretely relates to PLC DCS digital quantity input terminal module.
Background
In the current PLC/DCS in industrial control, the acquisition of digital input signals is directly connected with a signal source and also passes through a terminal board. Due to various unexpected and uncontrollable factors existing in the actual construction, debugging and operation processes, individual signals are difficult to avoid fault conditions such as grounding or signal source interference, and the like, while a power supply used for collecting the PLC/DCS digital input signals is unique and has no other protection, once the individual input signal faults occur, the voltage of the whole power supply is reduced, the influence is enlarged, all input signals disappear, and other control signals using the same power supply also lose efficacy.
The power supply is the driving force of all controls, and the power failure, then whole relevant control system is all out of control, causes the consequence serious, and equipment operation is abnormal if light, and the control failure can be caused if heavy, produces great economic loss, even the safety in production accident.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the PLC/DCS digital quantity input terminal module is provided, not only can a system power supply and a control system be effectively protected, but also fault points can be conveniently found, the overhauling quality is improved, and the overhauling time is shortened.
The technical scheme is as follows: in order to realize the above-mentioned purpose, the utility model provides a PLC DCS digital quantity input terminal module, including power supply terminal, the signal of telecommunication outflow terminal, the signal of telecommunication inflow terminal and the plug that is used for connecting the power, the positive pole of power is passed through the wire and is connected with components and parts, the wire is connecting the signal of telecommunication outflow terminal through first fuse, parallelly connected fault indicator that is provided with in first fuse department, the signal of telecommunication inflow terminal is through the articulate of signal indicator and plug, and load device is connected the formation return circuit through plug and power negative pole, be provided with power setting indicator and second fuse between the positive pole of power and the negative pole.
Furthermore, a first voltage limiting resistor is arranged between the first fuse and the fault indicator lamp, and the arrangement of the first voltage limiting resistor can ensure that the fault indicator lamp can normally and accurately display.
Furthermore, a second voltage limiting resistor is arranged at the signal indicator lamp in parallel, and the arrangement of the second voltage limiting resistor can ensure that the signal indicator lamp can normally and accurately display.
Furthermore, a third voltage limiting resistor is arranged between the power supply setting indicator lamp and the second fuse, and the third voltage limiting resistor can ensure that the power supply setting indicator lamp can normally and accurately display.
Further, the plug is a 9-pin plug, the electric signal inflow terminal is connected with the No. 1 connector of the 9-pin plug, and the No. 7 connector of the 9-pin plug is connected with the negative electrode of the power supply.
Furthermore, the digital input terminal module further comprises an epoxy resin bottom plate, and the power supply terminal, the electric signal outflow terminal, the electric signal inflow terminal and the plug are all arranged on the epoxy resin bottom plate.
Further, a terminal identification is configured on the power terminal.
Has the advantages that: compared with the prior art, the utility model, possess following advantage:
1. the influence of digital quantity input signal to the power to easy trouble, the core is the influence of solving the fault signal to the power, this module is according to actual control needs, all set up the protection fuse at each single-point power positive pole, in case take place some short circuit, perhaps trouble, the fuse can reliably fuse, cut off relevant signal, thereby guarantee that the power is normal, thereby be unlikely to influence other control and equipment, solved because of constructor misoperation, lead to the problem that signal line ground connection makes the power inefficacy, thereby prevented because the power failure leads to the emergence of the whole circumstances out of control of whole relevant control system.
2. Every branch road of this module all is equipped with two kinds of signal indicator lamps for signal indication is normal, still breaks down, is convenient for seek the fault point, through the inspection module, can swiftly fix a position the wrong position, seeks the fault point, thereby has improved maintenance efficiency, has shortened maintenance duration.
3. The module has small volume, supports the installation of various standard guide rails, has small heat productivity and can be arranged in a centralized way; the module is connected with the PLC/DCS through a 9-pin D-type quick connector, and is convenient and quick; the module and the signal source connecting terminal can be plugged, so that the wiring is convenient and the debugging is flexible; the PLC/DCS digital input signal on the market is generally a multiple of 8, the module is flexible to configure, and the waste of points and the like can not be generated.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.
As shown in fig. 1, the utility model provides a PLC/DCS digital input terminal module, which comprises an epoxy resin base plate 1, a power terminal 3 disposed on the epoxy resin base plate 1, an electric signal outflow terminal 11, an electric signal inflow terminal 12 and a 9-pin plug 15, wherein the 9-pin plug 15 comprises 9 interfaces, which are respectively a 1.0 interface, a 1.1 interface, a 1.2 interface, a 1.3 interface, a 1.4 interface, a 1.5 interface, a 1.6 interface, a 1.7 interface and a V-interface, a power source is disposed in the power terminal 3, a positive pole and a negative pole of the power source are respectively led out through a positive wire 7 and a negative wire 16, a terminal mark 2 for displaying the positive pole and the negative pole of the power source is disposed on the power terminal 3, the positive pole of the power source is connected with other components through the positive wire 7, a second fuse 6, a third voltage limiting resistor 5 and a power source setting indicator lamp 4 are sequentially disposed between the positive wire 7 and the negative wire 16, the positive wire 7 is connected with an electric signal outflow terminal 11 through a first fuse 8, a fault indicator lamp 9 and a first voltage limiting resistor 10 are arranged at the position of the first fuse 8 in parallel, the electric signal inflow terminal 12 is connected with a No. 1.0 connector of a 9-pin plug 15 through a signal indicator lamp 13, a second voltage limiting resistor 14 is arranged at the position of the signal indicator lamp 13 in parallel, load (PLC/DCS) equipment forms a loop through a V-interface of the 9-pin plug by connecting a negative wire 16 with a power supply negative pole, and the PLC/DCS receives signals received by the electric signal outflow terminal 11 and the electric signal inflow terminal 12.
Based on above-mentioned PLC/DCS digital quantity input terminal module, this embodiment carries out the example with this module and uses, specifically as follows:
in the using process of the module, if an electric signal flows out of the terminal 11 and is grounded or short-circuited due to misoperation, the first fuse 8 can be reliably fused, so that a power supply at the power terminal 3 is protected; if the electric signal flows into the terminal 12 and is grounded, the electric signal flows into the terminal 12 and is equal in potential to the negative end of the power supply, the load equipment cannot generate voltage difference, and the load cannot generate abnormity; if the signal is closed when the electric signal inflow terminal 12 is grounded, and the electric signal outflow terminal 11 and the electric signal inflow terminal 12 are in the on state, the first fuse 8 can be reliably fused, thereby protecting the power supply at the power supply terminal 3. After the first fuse 8 is fused, the fault indicator lamp 9 is lightened to indicate that the signal lines connected with the electric signal outflow terminal 11 and the electric signal inflow terminal 12 are abnormal, and the signal lines can be rapidly judged to be in a grounding or short-circuit state. After the circuit problem is eliminated, the fuse can be put into use again only by replacing the fuse with the same specification.
Claims (7)
1. The utility model provides a PLC DCS digital quantity input terminal module, its characterized in that, is including power supply terminal, the signal of telecommunication outflow terminal, the signal of telecommunication inflow terminal and the plug that is used for connecting the power, the positive pole of power is passed through the wire and is connected with components and parts, the wire is connecting the signal of telecommunication outflow terminal through first fuse, the parallelly connected fault indicator that is provided with in first fuse department, the signal of telecommunication inflow terminal is through the articulate of signal indicator and plug, and load equipment is connected through plug and power negative pole and is formed the return circuit, be provided with power setting indicator and second fuse between the positive pole and the negative pole of power.
2. The PLC/DCS digital input terminal module of claim 1, wherein a first voltage limiting resistor is arranged between the first fuse and the fault indicating lamp.
3. The PLC/DCS digital input terminal module according to claim 1, wherein a second voltage limiting resistor is arranged at the signal indicating lamp in parallel.
4. The PLC/DCS digital input terminal module of claim 1, wherein a third voltage limiting resistor is arranged between the power supply setting indicator lamp and the second fuse.
5. The PLC/DCS digital input terminal module according to claim 1, wherein the plug is a 9-pin plug, the electric signal inflow terminal is connected to the 1 st connector of the 9-pin plug, and the 7 th connector of the 9-pin plug is connected to the negative electrode of the power supply.
6. The PLC/DCS digital input terminal module according to claim 1, further comprising an epoxy resin base plate, wherein the power source terminal, the electric signal outflow terminal, the electric signal inflow terminal and the plug are disposed on the epoxy resin base plate.
7. The PLC/DCS digital input terminal module according to claim 1, wherein the power terminal is provided with a terminal identifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120854046.5U CN214625640U (en) | 2021-04-25 | 2021-04-25 | PLC/DCS digital quantity input terminal module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120854046.5U CN214625640U (en) | 2021-04-25 | 2021-04-25 | PLC/DCS digital quantity input terminal module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214625640U true CN214625640U (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120854046.5U Active CN214625640U (en) | 2021-04-25 | 2021-04-25 | PLC/DCS digital quantity input terminal module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214625640U (en) |
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2021
- 2021-04-25 CN CN202120854046.5U patent/CN214625640U/en active Active
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