CN116466559A - Identification method for master-slave working state of redundant controller of DCS (distributed control system) - Google Patents
Identification method for master-slave working state of redundant controller of DCS (distributed control system) Download PDFInfo
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- CN116466559A CN116466559A CN202310254239.0A CN202310254239A CN116466559A CN 116466559 A CN116466559 A CN 116466559A CN 202310254239 A CN202310254239 A CN 202310254239A CN 116466559 A CN116466559 A CN 116466559A
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 238000007689 inspection Methods 0.000 claims description 20
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Safety Devices In Control Systems (AREA)
Abstract
The invention relates to the technical field of identification of working states of redundant controllers of a DCS (distributed control system), in particular to an identification method of master-slave working states of the redundant controllers of the DCS, which is characterized in that a master control paste and a slave control paste are designed, the master control paste is pasted on a controller clamping piece of the master control working state, and the slave control paste is pasted on a controller clamping piece of the slave control working state; observing the matching relation between the controller attached with the master control paste or the slave control paste and the corresponding controller running state indicator lamp, judging whether the controller has master-slave redundancy switching or not, and judging the fault type of the controller; the invention is an intuitive and visual means for recording the master-slave operation state before the controller; when the DCS server and the operation station are far away from the site between cabinets, the faults of the controller system can be rapidly analyzed and processed according to the identification paste, so that the potential safety hazards of the operation of the DCS system can be eliminated as soon as possible, and the production service can be recovered as soon as possible.
Description
Technical Field
The invention relates to the technical field of identification of working states of redundant controllers of a DCS (distributed control system), in particular to an identification method of master-slave working states of the redundant controllers of the DCS.
Background
At present, a set of DCS system is provided with a main controller and a slave controller, the clamping pieces of the main controller and the slave controller are respectively provided with an LED screen and an indicator lamp, and in the maintenance process of a DCS system maintainer, the following two problems are found to exist:
1. the controller cabinet and the servers of the central control room are placed in different areas, and when a patrol personnel between the cabinets patrol the running state of the controller, whether the controller has master-slave switching cannot be determined only by the LED screen and the indicator lights on the controller clamping piece.
2. When any one of the controllers fails, the controllers fails accidentally or the controllers are in power failure or the controllers are in power oscillation, the patrol maintenance personnel cannot judge whether the master controller and the slave controller are switched according to the status indicator lamps of the field controllers at the first time, the fault clamping piece and the range of the fault influence cannot be accurately positioned, and serious barriers are formed for rapidly checking and processing the system problems, eliminating the hidden danger of system operation as soon as possible or recovering production as soon as possible. Therefore, a method for identifying the master-slave working state of the redundant controller of the DCS system needs to be designed, so that the problems that the master controller and the slave controller in the existing DCS system are inconvenient to judge whether master-slave redundant switching occurs or not and the fault analysis is slower are solved.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide an identification method for master-slave working states of a redundant controller of a DCS system.
The technical scheme adopted for solving the technical problems is as follows: a method for identifying master-slave working states of a redundant controller of a DCS (distributed control system) comprises the following steps:
1) Designing a master control paste and a slave control paste, wherein the master control paste is stuck to a controller clamping piece in a master control working state, and the slave control paste is stuck to a controller clamping piece in a slave control working state;
2) Observing the matching relation between the controller attached with the master control paste or the slave control paste and the corresponding controller running state indicator lamp, judging whether the controller has master-slave redundancy switching or not, and judging the fault type of the controller;
3) When the current running state indicator lamp of the controller attached with the master control paste is found to be in a master control working state during inspection, and the current running state indicator lamp of the controller attached with the slave control paste is found to be in a slave control working state, the group of controllers can be directly judged that the master-slave redundancy switching does not occur, and the controllers run normally;
4) When the controller attached with the master control paste or the slave control paste is not matched with the corresponding controller running state indicator lamp during inspection, the master-slave redundancy switching between the same group of controllers is indicated, and the problems of the corresponding controllers or control systems need to be detected.
Specifically, in the step 4), when the current running state indicator lamp of the controller attached with the "master control" paste is found to be in the slave control working state during inspection, and the current running state indicator lamp of the controller attached with the "slave control" paste is found to be in the master control working state, and when other indications of the controller are all normal, the group of controllers can be directly judged that the master-slave redundancy switching has occurred, the controller clamping piece attached with the "master control" paste has a fault or has a power failure phenomenon, the root cause of the switching should be detected as soon as possible, the hidden danger of the system running is eliminated, and the influence range of the situation is as follows: the field device and normal monitoring are not affected.
Specifically, in the step 4), when the current running state indicator lamp of the controller attached with the "master control" paste is found to be in the master control working state during inspection, other running indicator lamps of the controller are normal, and when the current running indicator lamp of the controller attached with the "slave control" paste is in error or is not on, the controller clamping piece attached with the "slave control" paste can be directly judged to have a fault or be powered down, the group of controllers do not have master-slave redundancy switching, the root cause of the problem of the slave controllers should be detected as soon as possible, the hidden danger of system running is eliminated, the influence scope of the situation is as follows: the field device and normal monitoring are not affected.
Specifically, in the step 4), when the current running state indicator lamp of the controller attached with the "master control" paste is found to be in the master control working state during inspection, and other indicator lamps of the controller are normal, and when the current running state indicator lamp of the controller attached with the "slave control" paste is in the master control working state, the group of controllers can be directly judged that the master-slave switching does not occur, and the problem is that: the redundant module fault or the redundant communication line is in problem, the controller loses the redundant synchronous function, and the influence scope of the condition is as follows: the field device and normal monitoring are not affected.
Specifically, in the step 4), when the controller attached with the "master control" is found to be in the slave control working state during the inspection, and the controller attached with the "slave control" is found to be in the slave control working state, the influence range of the situation is as follows: the control system has serious faults, the controller stops working, the production operation is seriously affected, and the production needs to be recovered as soon as possible.
Specifically, in the step 4), when the controller currently running state indicator lamp attached with the "master control" patch is found to be in the slave control working state during the inspection, but the controller running indicator lamp shows serious error or is not on, and when the controller currently running indicator lamp attached with the "slave control" patch is in the slave control working state, the influence range of the situation is as follows: the control system has serious faults, the controller stops working, the production operation is seriously affected, and the production needs to be recovered as soon as possible.
The invention has the following beneficial effects:
the identification method of the master-slave working state of the DCS system redundant controller designed by the invention is an intuitive and visual means, and records the master-slave working state before the controller;
the constraint of a monitoring network, a server and an operation station is removed, and when the DCS server and the operation station have power failure or fail and cannot be checked; when the DCS server and the operation station are far away from the site between cabinets, the faults of the controller system can be rapidly analyzed and processed according to the identification paste, so that the potential safety hazards of the operation of the DCS system can be eliminated as soon as possible, and the production service can be recovered as soon as possible.
Drawings
Fig. 1 is a schematic structural diagram of a "master" patch.
Fig. 2 is a schematic structural diagram of a "slave" patch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described in further detail below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
as shown in figures 1-2, first, the identification paste of the master-slave working state of the redundant controller of the DCS system is manufactured, the main control paste and the auxiliary control paste are round, the background color of the main control paste is green, and the background color of the auxiliary control paste is yellow in a fixed paste mode. When the self-adhesive sticking type controller is used for sticking, the matched sticking picture is selected according to the current working state of the controller, and after the sticking paper on the back surface of the sticking picture is torn off, the sticking picture with the self-adhesive is directly stuck to a corresponding controller clamping piece. The method comprises the steps of designing a master control paste and a slave control paste, wherein the master control paste is pasted on a controller clamping piece in a master control working state, and the slave control paste is pasted on a controller clamping piece in a slave control working state. The identification patch can help patrol maintenance personnel to quickly diagnose the running state of the controller, discover the running abnormality of the control system in time, eliminate the potential safety hazard of the system running as soon as possible and recover the production service as soon as possible.
The method for reading and using the identification patch comprises the following steps:
1. when the controller attached with the master control paste is found to be in a master control working state during inspection, and the controller attached with the slave control paste is found to be in a slave control working state, the group of controllers can be directly judged that the master-slave redundancy switching does not occur, and the controllers work normally.
2. When the inspection is carried out, the current running state indicator lamp of the controller attached with the master control paste is in the slave control working state, the current running state indicator lamp of the controller attached with the slave control paste is in the master control working state, and when other indications of the controller are normal, the group of controllers can be directly judged that the master-slave redundancy switching happens, the controller clamping piece attached with the master control paste has the fault or the power failure phenomenon, the root cause of the switching is inspected as soon as possible, the hidden danger of the system running is eliminated, and the influence range of the situation is as follows: the field device and normal monitoring are not affected.
3. When the inspection is carried out, the current running state indicator lamp of the controller attached with the master control paste is found to be in a master control working state, other running indicator lamps of the controller are normal, and when the current running indicator lamp of the controller attached with the slave control paste is wrong or is not bright, the fault or power failure of the controller clamping piece attached with the slave control paste can be directly judged, the group of controllers are not subjected to master-slave redundancy switching, the root cause of the problem of the slave controller is inspected as soon as possible, the hidden danger of the system running is eliminated, and the influence range of the situation is as follows: the field device and normal monitoring are not affected.
4. When the inspection is carried out, the current running state indicator lamp of the controller attached with the master control paste is found to be in a master control working state, other indicator lamps of the controller are normal, and when the current running state indicator lamp of the controller attached with the slave control paste is in the master control working state, the group of controllers can be directly judged that master-slave switching does not occur, and the problem is that: the redundant module fault or the redundant communication line is in problem, the controller loses the redundant synchronous function, and the influence scope of the condition is as follows: the field device and normal monitoring are not affected.
5. When the controller attached with the master control paste is found to be in the slave control working state during inspection, and the controller attached with the slave control paste is found to be in the slave control working state, the influence range of the conditions is as follows: the control system has serious faults, the controller stops working, the production operation is seriously affected, and the production needs to be recovered as soon as possible.
6. When the inspection is carried out, the current running state indicator lamp of the controller attached with the master control paste is in the slave control working state, but the running indicator lamp of the controller shows serious error or is not lightened, and when the current running indicator lamp of the controller attached with the slave control paste is in the slave control working state, the influence range of the situation is as follows: the control system has serious faults, the controller stops working, the production operation is seriously affected, and the production needs to be recovered as soon as possible.
The present invention is not limited to the above embodiments, and any person who can learn the structural changes made under the teaching of the present invention can fall within the scope of the present invention if the present invention has the same or similar technical solutions.
The technology, shape, and construction parts of the present invention, which are not described in detail, are known in the art.
Claims (6)
1. The identification method of the master-slave working state of the redundant controller of the DCS system is characterized by comprising the following steps:
1) Designing a master control paste and a slave control paste, wherein the master control paste is stuck to a controller clamping piece in a master control working state, and the slave control paste is stuck to a controller clamping piece in a slave control working state;
2) Observing the matching relation between the controller attached with the master control paste or the slave control paste and the corresponding controller running state indicator lamp, judging whether the controller has master-slave redundancy switching or not, and judging the fault type of the controller;
3) When the current running state indicator lamp of the controller attached with the master control paste is found to be in a master control working state during inspection, and the current running state indicator lamp of the controller attached with the slave control paste is found to be in a slave control working state, the group of controllers can be directly judged that the master-slave redundancy switching does not occur, and the controllers run normally;
4) When the controller attached with the master control paste or the slave control paste is not matched with the corresponding controller running state indicator lamp during inspection, the master-slave redundancy switching between the same group of controllers is indicated, and the problems of the corresponding controllers or control systems need to be detected.
2. The method for identifying master-slave working states of redundant controllers of a DCS system according to claim 1, wherein in step 4), when the present running state indicator light of the controller attached with the "master control" patch is found to be the slave control working state during inspection, and the present running state indicator light of the controller attached with the "slave control" patch is the master control working state, and when other indications of the controller are normal, the group of controllers can be directly judged that the master-slave redundant switching has occurred, the controller clamping piece attached with the "master control" patch has a fault or has a power failure phenomenon, the root cause of the switching should be quickly checked, the hidden danger of system running is eliminated, and the scope of influence of the condition is as follows: the field device and normal monitoring are not affected.
3. The method for identifying master-slave working states of redundant controllers of a DCS system according to claim 1, wherein in step 4), when the current operation status indicator lamp of the controller attached with the "master control" is found to be the master control working state during inspection, and other operation indicator lamps of the controller are normal, and when the current operation indicator lamp of the controller attached with the "slave control" is wrong or is not bright, the controller clamping piece attached with the "slave control" can be directly judged to have a fault or have power failure, the group of controllers do not have master-slave redundancy switching, the root cause of the problem of the slave controllers should be checked as soon as possible, the hidden danger of system operation is eliminated, and the scope of influence of the situation is as follows: the field device and normal monitoring are not affected.
4. The method for identifying master-slave operating states of redundant controllers of a DCS system according to claim 1, wherein in step 4), when the current operating state indicator light of the controller attached with the "master control" patch is found to be the master operating state during inspection, and other indicator lights of the controller are normal, and when the current operating state indicator light of the controller attached with the "slave control" patch is the master operating state, it can be directly determined that the master-slave switching does not occur for the group of controllers, because: the redundant module fault or the redundant communication line is in problem, the controller loses the redundant synchronous function, and the influence scope of the condition is as follows: the field device and normal monitoring are not affected.
5. The method for identifying master-slave operation states of redundant controllers of DCS system according to claim 1, wherein in step 4), when the current operation state indicator light of the controller attached with the "master control" patch is found to be the slave operation state during the inspection, and the current operation state indicator light of the controller attached with the "slave control" patch is found to be the slave operation state, the influence range of the condition is as follows: the control system has serious faults, the controller stops working, the production operation is seriously affected, and the production needs to be recovered as soon as possible.
6. The method for identifying master-slave operation states of redundant controllers of DCS system according to claim 1, wherein in step 4), when it is found that the current operation state indicator lamp of the controller to which the "master control" patch is attached is in the slave operation state during the inspection, but the current operation indicator lamp of the controller displays serious error or is not on, and when the current operation indicator lamp of the controller to which the "slave control" patch is attached is in the slave operation state, the range of influence of the condition is as follows: the control system has serious faults, the controller stops working, the production operation is seriously affected, and the production needs to be recovered as soon as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310254239.0A CN116466559A (en) | 2023-03-16 | 2023-03-16 | Identification method for master-slave working state of redundant controller of DCS (distributed control system) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310254239.0A CN116466559A (en) | 2023-03-16 | 2023-03-16 | Identification method for master-slave working state of redundant controller of DCS (distributed control system) |
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| CN116466559A true CN116466559A (en) | 2023-07-21 |
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| CN (1) | CN116466559A (en) |
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- 2023-03-16 CN CN202310254239.0A patent/CN116466559A/en active Pending
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