CN107894742A - A kind of safety PLC implementation method of rapid configuration hardware resource - Google Patents
A kind of safety PLC implementation method of rapid configuration hardware resource Download PDFInfo
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
Abstract
A kind of safety PLC implementation method of rapid configuration hardware resource includes：Different type CPU PLC operating systems are formed using the PLC operating system kernels software that can recombinate transplanting；At least two sets of different type CPU simultaneously each self-operating different PLC operating systems when, including comprise the following steps that：Multisystem runs simultaneously cross detection；The multisystem includes main PLC operating systems and from PLC operating system；I/O voting outputs, and give final result to executing agency；Requirement according to security system certification forms safety PLC product.The angle that the present invention realizes from the market demand and commercialization, using multi-channel system safety PLC constructing technology, based on the configurable double PLC systems of PLC platform constructions, fusion multisystem self-diagnosis technology forms multi-channel system safety PLC.For the present invention according to different application demands, fast custom supports the safety PLC system of different I/O points and communication mode.
Description
Technical field
The present invention relates to a kind of safety PLC implementation method of rapid configuration hardware resource, belong to the fast custom of safety PLC
With the technical field of research and development.
Background technology
Safety PLC belongs to security system category, and its core content is：Two sets of different series are comprised at least in one system
The different PLC operating systems of each self-operating, multisystem run simultaneously cross detection, meet security control the CPU of type simultaneously
It is required that.But the fast custom of existing safety PLC faces following technical problem with research and development：
1) it is different, it is necessary to solve ensureing the reliable of program for different series and the CPU of producer, compiling development environment
Property and stability under the premise of PLC compiling parsing operating system quick development problem.The present invention is grasped by that can recombinate the PLC of transplanting
Monitoring is realized as method：Compiling parsing content corresponding to stored single PLC operating systems is consistent under different CPU
Property.
2) the PLC product seriations of different application demand are adapted to, it is necessary to which different I/O points, the differentiation of communication pattern are determined
System exploitation, it is necessary to develop the software of otherness to realize under traditional approach, the difficulty of exploitation is considerably increased, exploitation week be present
The problems such as phase length, software stability and uniformity difference.
Safety PLC described in method of the present invention by hardware resource configure based on realize, i.e. safety PLC
In different PLC systems be respectively by can configure PLC means build.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of safety PLC implementation method of rapid configuration hardware resource.
Technical scheme is as follows：
A kind of safety PLC implementation method of rapid configuration hardware resource, including：System is operated using the PLC that can recombinate transplanting
Kernel software of uniting forms different type CPU PLC operating systems；
PLC kernel softwares are run in the PLC operating systems, the software includes upper computer software and bottom layer driving journey
Sequence；
The upper computer software mainly includes configuration software；
The bottom layer driving software is mainly PLC TMPs；
The composing software loaded in the PLC operating systems uses modular design method, support ladder diagram, statement list and
Editor, compiling and the download of SFC.Configuration software configures including hardware resource, realizes PLC Quick Casting.PLC is whole
Monitoring programme is held to support PLC parsings, configuration parameter parsing, process control, motion control, standard Modbus communications etc..Pass through weight
Group transplanting, different type CPU PLC operating systems can be formed.
It using modularization, can configure, reconstitutable design philosophy, realize the Rapid transplant exploitation of PLC operating system softwares,
Transplanted by recombinating, different type CPU PLC operating systems can be formed.
The present invention may also be combined with PLC operating system kernel softwares, builds configurable PLC fast custom hardware platforms, realizes
Different I/O points, more PLC constructed in hardware of communication pattern are supported, it is quick to form seriation PLC products；
At least two sets of different type CPU simultaneously each self-operating different PLC operating systems when, including comprise the following steps that：
1) multisystem synchronous operation cross detection；The multisystem includes main PLC operating systems and from PLC operating system；
2) I/O votings output, and give final result to executing agency；
3) requirement according to security system certification forms safety PLC product.The requirement of the security system certification refers to state
The IEC61508 standards that the border electrician committee formally issued in 2000, it is entitled《Electrical/electronic/programmable electronic is safety-related
The functional safety of system》.
In the step 1), the multisystem synchronous operation cross detection includes：
1.1) main PLC operating systems and from PLC operating systems run simultaneously；
1.2) all main PLC operating systems of step 1.1) and same form storage running knot is pressed from PLC operating systems
Fruit；
1.3) the main PLC operating systems read the result from PLC operating systems by serial ports.
The present invention realizes any I/O points customization, the selection of communication pattern in CPU hardware scope of resource by configuring, soon
Speed forms I/O points and communication pattern, and safety guarantee is provided using research and development for PLC.
According to currently preferred, in the step 2), the I/O votings output includes：
If 2.1) it is switching value that I/O, which decides by vote output, main PLC operating systems and the voting from PLC operating systems export knot
When fruit is all 1 or 0, then, judgement operation result is correct；Otherwise, operation result mistake is adjudicated；
2.2) it is high-speed pulse counting amount that if I/O, which decides by vote output, main PLC operating systems and the table from PLC operating systems
When certainly output result difference is no more than 1, then, judgement operation result is correct；Otherwise, operation result mistake is adjudicated；
If 2.3) it is analog quantity that I/O, which decides by vote output, main PLC operating systems and the voting from PLC operating systems export knot
Fruit is differed at thousand points of positions, then, judgement operation result is correct；Otherwise, operation result mistake is adjudicated；
The correctly judgement operation result is handed down to the corresponding PLC operating systems for sending correct voting output result；
The PLC operating systems for sending mistake voting output result are overhauled, more PLC operating systems judgements are assigned after the completion of maintenance and are held
Row task.
According to currently preferred, such as it is above-mentioned 2.1), 2.2), 2.3), if the certainly operation result mistake, triggering report
It is alert, while corresponding error message is uploaded into host computer：It is correct artificially to adjudicate which voting output result.
According to currently preferred, the PLC operating system kernels software that utilization can recombinate transplanting forms different type CPU's
The method of PLC operating systems includes：
(1) hardware resource configuration parameter table is generated；
Required according to the customization of PLC products, PLC hardware requires according to control and PLC function determines I/O points and class
Type, in the range of the permission of CPU hardware I/O resources, realize that different model PLC is built；
The determination method of the hardware resource configuration parameter includes：
(1.1) PLC I/O points selections, first have to consider that control requires, take into account standby surplus；Usual I/O points are roots
It is actually needed according to the input of controll plant, output signal, is determined along with 10%--30% reserve level；
(1.2) according to I/O resource requirements, exploitation PCB PLC-PCB；
(1.3) application hardware configurable software generation hardware resource configuration parameter table PLC-CS, realizes PLC hardware resources
Autonomous configuration；The hardware configurable software is the software that those skilled in the art commonly use, and it is exactly to realize that hardware provides that it, which is acted on,
Source configuration parameter table PLC-CS；
In order to preferably explain hardware configurable software, its operation interface such as Fig. 1, in Fig. 1, I/O port type row L1
It is optional PLC common type lists；The access of I/O ports ranks L3 and automatically generated after selection L1, and it is that PLC is used that I/O ports, which access,
Family programming needs the PLC variables used；Reselection I/O ports sequence number row L2, this row are enumerated all optional under L1 types
CPU corresponding pins；Then increase generates " hardware resource configuration parameter table PLC-CS " line by line；
(2) the hardware resource configuration parameter table PLC-CS is downloaded in PLC-PCB parameter configurations memory block FLASH,
PLC monitoring programmes are downloaded in PLC-PCB program storage areas FLASH, complete PLC structure；
The PLC monitoring programmes are technologies well-known to those skilled in the art, are the bottom layer driving journeys at hardware platform end
Sequence, including the parsing of hardware parser, statement list, communication interface driving etc., the monitoring programme includes different PLC integration technology,
The program is the monitoring programme specially researched and developed for configurable PLC, but is unique for this program for different PLC；
(3) the PLC operation implementation process of structure, when PLC is run：
(3.1) read hardware resource configuration parameter table PLC-CS and complete I/O driving parsings, complete the autonomous of hardware resource and match somebody with somebody
Put；
(3.2) PLC monitoring programmes are run；So far, PLC operations possess PLC functions completely, possess ladder diagram, statement list
Programming, realizes logic control, arithmetical operation, timing, counting, data processing, PID arithmetic and communication function.
According to currently preferred, in the step (1), PLC configuration parameters are established and realized by QT softwares, according to ginseng
Number list data structure forms PLC-CS Parameter Files, is downloaded to by serial ports in PLC hardware circuits, matches somebody with somebody for being called during operation PLC
Parameter PLC-CS is put, completes I/O driving configurations；Parameter list data structure is as follows：
PLC-CS parameter list structures：
| ① | ② | ④ |
| PLC I/O port types | PLC I/O port positions | CPU I/O port Pi.j |
1. PLC I/O port types：Required according to PLC type number, be configured to On-off signal (DI), output switch parameter
(DO), analog input (AI) and analog output (AO)；
2. PLC I/O port positions：Required according to PLC type number, configure the way position of selected type；
4. CPU I/O port Pi.j：It is different according to cpu type, point multiple I/O ports P0.0, P0.1,
...Pi.j,....；This field sets the CPU I/O port Pi.j corresponding to PLC I/O port positions.
According to currently preferred, the PLC-CS parameter lists structure also includes PLC I/O port parameters：According to PLC type
Number require, to the I/O ports arrange parameter of configuration；It is sky during without type parameter；
According to currently preferred, call configuration option PLC-CS during operation PLC in the step (3), completion I/O drivings
The implementation method of Command Line Parsing includes：
| ① | ② | ③ | ④ |
| PLC I/O port types | PLC I/O port positions | PLC I/O port parameters | CPU I/O port Pi.j |
When running PLC, elder generation of PLC operating system softwares call configuration option PLC-CS, according to parameter list record successively basis
PLCI/O port types On-off signal (DI), output switch parameter (DO), analog input (AI), analog output (AO) are several
I/O driving configurations are completed in I/O ports corresponding to CPU by type, and implementation method is as follows：
1. PLC I/O port types：LC I/O port types are read, (DI), switching value are inputted according to PLC port switch amount
The different configurator of output (DO), analog input (AI) calling different with analog output (AO) polytype；
2. PLC I/O port positions：According to PLC I/O port positions, configurator is sequentially completed；
3. PLC I/O port parameters：According to PPLC I/O port parameters, corresponding I/O ports are entered according to configuration parameter
Row configuration is handled；
4. CPU I/O port Pi.j：The CPU I/O port Pi.j corresponding to the PLC I/O ports being currently configured are chosen, are entered
Row I/O driving configurations.
The technical advantages of the present invention are that：
The angle that the present invention realizes from the market demand and commercialization, using multi-channel system safety PLC constructing technology
(at least binary channels), based on the configurable double PLC systems of PLC platform constructions, fusion multisystem self-diagnosis technology forms multichannel
System safety PLC.The present invention is available for third party to support different I/O points and communication party according to different application demands, fast custom
The safety PLC system of formula.
Brief description of the drawings
Fig. 1 is the interface operation schematic diagram of hardware configurable software of the present invention；
Fig. 2 is the flow chart of I/O votings output of the present invention；
Fig. 3 is the safe dual system PLC of this hair structure I/O points schematic diagram；Wherein described dual system self diagnosis skill
Art includes multisystem synchronous operation crossing detection technique and I/O voting export techniques, and the binary channels just refers to that double PLC systems are led to
Road；
Fig. 4 is the schematic diagram for the PLC that different I/O points are built in the present invention；Wherein, different PLC CPU type is
Different, if PLC1 is using the LPC2368 of Arm series, PLC2 is using STM32 series or MSP430 series etc..This
Sample can as much as possible avoid system extremely in same place.
Embodiment
The present invention is described in detail with reference to embodiment and Figure of description, but not limited to this.
As Figure 1-4.
Embodiment 1,
A kind of safety PLC implementation method of rapid configuration hardware resource, including：System is operated using the PLC that can recombinate transplanting
Kernel software of uniting forms different type CPU PLC operating systems；
At least two sets of different type CPU simultaneously each self-operating different PLC operating systems when, including comprise the following steps that：
1) multisystem synchronous operation cross detection；The multisystem includes main PLC operating systems and from PLC operating system；
2) I/O votings output, and give final result to executing agency；
3) requirement according to security system certification forms safety PLC product.The requirement of the security system certification refers to state
The IEC61508 standards that the border electrician committee formally issued in 2000, it is entitled《Electrical/electronic/programmable electronic is safety-related
The functional safety of system》.
In the step 1), the multisystem synchronous operation cross detection includes：
1.1) main PLC operating systems and from PLC operating systems run simultaneously；
1.2) all main PLC operating systems of step 1.1) and same form storage running knot is pressed from PLC operating systems
Fruit；
1.3) the main PLC operating systems read the result from PLC operating systems by serial ports.
The present invention realizes any I/O points customization, the selection of communication pattern in CPU hardware scope of resource by configuring, soon
Speed forms I/O points and communication pattern, and safety guarantee is provided using research and development for PLC.
In the step 2), the I/O votings output includes：
If 2.1) it is switching value that I/O, which decides by vote output, main PLC operating systems and the voting from PLC operating systems export knot
When fruit is all 1 or 0, then, judgement operation result is correct；Otherwise, operation result mistake is adjudicated；
2.2) it is high-speed pulse counting amount that if I/O, which decides by vote output, main PLC operating systems and the table from PLC operating systems
When certainly output result difference is no more than 1, then, judgement operation result is correct；Otherwise, operation result mistake is adjudicated；
If 2.3) it is analog quantity that I/O, which decides by vote output, main PLC operating systems and the voting from PLC operating systems export knot
Fruit is differed at thousand points of positions, then, judgement operation result is correct；Otherwise, operation result mistake is adjudicated；
The correctly judgement operation result is handed down to the corresponding PLC operating systems for sending correct voting output result；
The PLC operating systems for sending mistake voting output result are overhauled, more PLC operating systems judgements are assigned after the completion of maintenance and are held
Row task.
Embodiment 2,
A kind of safety PLC implementation method of rapid configuration hardware resource, its difference are as described in Example 1, as above
State 2.1), 2.2), 2.3), if the certainly operation result mistake, triggering alarm, while corresponding error message is uploaded to
Position machine：It is correct artificially to adjudicate which voting output result.
Embodiment 3,
A kind of safety PLC implementation method of rapid configuration hardware resource as described in Example 1, its difference are, utilize
The method for the PLC operating systems that the PLC operating system kernels software that transplanting can be recombinated forms different type CPU includes：
(1) hardware resource configuration parameter table is generated；
Required according to the customization of PLC products, PLC hardware requires according to control and PLC function determines I/O points and class
Type, in the range of the permission of CPU hardware I/O resources, realize that different model PLC is built；
The determination method of the hardware resource configuration parameter includes：
(1.1) PLC I/O points selections, first have to consider that control requires, take into account standby surplus；Usual I/O points are roots
It is actually needed according to the input of controll plant, output signal, is determined along with 10%--30% reserve level；
(1.2) according to I/O resource requirements, exploitation PCB PLC-PCB；
(1.3) application hardware configurable software generation hardware resource configuration parameter table PLC-CS, realizes PLC hardware resources
Autonomous configuration；The hardware configurable software is the software that those skilled in the art commonly use, and it is exactly to realize that hardware provides that it, which is acted on,
Source configuration parameter table PLC-CS；
In order to preferably explain hardware configurable software, its operation interface such as Fig. 1, in Fig. 1, I/O port type row L1
It is optional PLC common type lists；The access of I/O ports ranks L3 and automatically generated after selection L1, and it is that PLC is used that I/O ports, which access,
Family programming needs the PLC variables used；Reselection I/O ports sequence number row L2, this row are enumerated all optional under L1 types
CPU corresponding pins；Then increase generates " hardware resource configuration parameter table PLC-CS " line by line；
(2) the hardware resource configuration parameter table PLC-CS is downloaded in PLC-PCB parameter configurations memory block FLASH,
PLC monitoring programmes are downloaded in PLC-PCB program storage areas FLASH, complete PLC structure；
The PLC monitoring programmes are technologies well-known to those skilled in the art, are the bottom layer driving journeys at hardware platform end
Sequence, including the parsing of hardware parser, statement list, communication interface driving etc., the monitoring programme includes different PLC integration technology,
The program is the monitoring programme specially researched and developed for configurable PLC, but is unique for this program for different PLC；
(3) the PLC operation implementation process of structure, when PLC is run：
(3.1) read hardware resource configuration parameter table PLC-CS and complete I/O driving parsings, complete the autonomous of hardware resource and match somebody with somebody
Put；
(3.2) PLC monitoring programmes are run；So far, PLC operations possess PLC functions completely, possess ladder diagram, statement list
Programming, realizes logic control, arithmetical operation, timing, counting, data processing, PID arithmetic and communication function.
Embodiment 4,
A kind of safety PLC implementation method of rapid configuration hardware resource as described in Example 3, its difference is, in institute
State in step (1), PLC configuration parameters are established and realized by QT softwares, and PLC-CS parameters text is formed according to parameter list data structure
Part, downloaded to by serial ports in PLC hardware circuits, for operation PLC when call configuration option PLC-CS, complete I/O driving configuration；
Parameter list data structure is as follows：
PLC-CS parameter list structures：
| ① | ② | ④ |
| PLC I/O port types | PLC I/O port positions | CPU I/O port Pi.j |
1. PLC I/O port types：Required according to PLC type number, be configured to On-off signal (DI), output switch parameter
(DO), analog input (AI) and analog output (AO)；
2. PLC I/O port positions：Required according to PLC type number, configure the way position of selected type；
4. CPU I/O port Pi.j：It is different according to cpu type, point multiple I/O ports P0.0, P0.1 ... Pi,
j,....；This field sets the CPU I/O port Pi.j corresponding to PLC I/O port positions.
Embodiment 5,
A kind of safety PLC implementation method of rapid configuration hardware resource as described in Example 4, its difference is, described
PLC-CS parameter lists structure also includes PLC I/O port parameters：Required according to PLC type number, ginseng is set to the I/O ports of configuration
Number；It is sky during without type parameter；
Call configuration option PLC-CS during operation PLC in the step (3), complete the realization side of I/O driving Command Line Parsing
Method includes：
| ① | ② | ③ | ④ |
| PLC I/O port types | PLC I/O port positions | PLC I/O port parameters | CPU I/O port Pi.j |
When running PLC, elder generation of PLC operating system softwares call configuration option PLC-CS, according to parameter list record successively basis
PLCI/O port types On-off signal (DI), output switch parameter (DO), analog input (AI), analog output (AO) are several
I/O driving configurations are completed in I/O ports corresponding to CPU by type, and implementation method is as follows：
1. PLC I/O port types：LC I/O port types are read, (DI), switching value are inputted according to PLC port switch amount
The different configurator of output (DO), analog input (AI) calling different with analog output (AO) polytype；
2. PLC I/O port positions：According to PLC I/O port positions, configurator is sequentially completed；
3. PLC I/O port parameters：According to PPLC I/O port parameters, corresponding I/O ports are entered according to configuration parameter
Row configuration is handled；
4. CPU I/O port Pi.j：The CPU I/O port Pi.j corresponding to the PLC I/O ports being currently configured are chosen, are entered
Row I/O driving configurations.
Claims (8)
1. a kind of safety PLC implementation method of rapid configuration hardware resource, it is characterised in that the experimental method includes：Utilize
The PLC operating system kernels software that transplanting can be recombinated forms different type CPU PLC operating systems；
At least two sets of different type CPU simultaneously each self-operating different PLC operating systems when, including comprise the following steps that：
1) multisystem synchronous operation cross detection；The multisystem includes main PLC operating systems and from PLC operating system；
2) I/O votings output, and give final result to executing agency；
3) requirement according to security system certification forms safety PLC product.
A kind of 2. safety PLC implementation method of rapid configuration hardware resource according to claim 1, it is characterised in that institute
State in step 1), the multisystem synchronous operation cross detection includes：
1.1) main PLC operating systems and from PLC operating systems run simultaneously；
1.2) all main PLC operating systems of step 1.1) and same form storage running result is pressed from PLC operating systems；
1.3) the main PLC operating systems read the result from PLC operating systems by serial ports.
A kind of 3. safety PLC implementation method of rapid configuration hardware resource according to claim 1, it is characterised in that institute
State in step 2), the I/O votings output includes：
If 2.1) I/O decides by vote output is switching value, main PLC operating systems and voting output result from PLC operating systems are all
For 1 or 0 when, then, and judgement operation result it is correct；Otherwise, operation result mistake is adjudicated；
If 2.2) I/O decides by vote output is high-speed pulse counting amount, main PLC operating systems and defeated from the voting of PLC operating systems
When going out result difference no more than 1, then, judgement operation result is correct；Otherwise, operation result mistake is adjudicated；
2.3) it is analog quantity that if I/O, which decides by vote output, main PLC operating systems and the voting output result phase from PLC operating systems
Difference is at thousand points of positions, then, judgement operation result is correct；Otherwise, operation result mistake is adjudicated；
The correctly judgement operation result is handed down to the corresponding PLC operating systems for sending correct voting output result；To hair
The PLC operating systems for the voting output result that makes mistake are overhauled, and more PLC operating systems enforcements of the judgment are assigned after the completion of maintenance and are appointed
Business.
4. the safety PLC implementation method of a kind of rapid configuration hardware resource according to claim 3, it is characterised in that such as
It is above-mentioned 2.1), 2.2), 2.3), if the certainly operation result mistake, triggering alarm, while corresponding error message is uploaded to
Host computer：It is correct artificially to adjudicate which voting output result.
A kind of 5. safety PLC implementation method of rapid configuration hardware resource according to claim 1, it is characterised in that profit
The method for the PLC operating systems for forming different type CPU with the PLC operating system kernels software that can recombinate transplanting includes：
(1) hardware resource configuration parameter table is generated；
(2) the hardware resource configuration parameter table PLC-CS is downloaded in PLC-PCB parameter configurations memory block FLASH, by PLC
Monitoring programme is downloaded in PLC-PCB program storage areas FLASH, completes PLC structure；
(3) the PLC operation implementation process of structure, when PLC is run：
(3.1) read hardware resource configuration parameter table PLC-CS and complete I/O driving parsings, complete the autonomous configuration of hardware resource；
(3.2) PLC monitoring programmes are run.
A kind of 6. safety PLC implementation method of rapid configuration hardware resource according to claim 5, it is characterised in that
In the step (1), PLC configuration parameters are established and realized by QT softwares, and PLC-CS parameters are formed according to parameter list data structure
File, downloaded to by serial ports in PLC hardware circuits, for operation PLC when call configuration option PLC-CS, complete I/O driving matches somebody with somebody
Put；Parameter list data structure is as follows：
PLC-CS parameter list structures：
1. PLC I/O port types：Required according to PLC type number, be configured to On-off signal (DI), output switch parameter (DO), mould
Analog quantity inputs (AI) and analog output (AO)；
2. PLC I/O port positions：Required according to PLC type number, configure the way position of selected type；
4. CPU I/O port Pi.j：It is different according to cpu type, point multiple I/O ports P0.0, P0.1 ... Pi, j ...；This
Field sets the CPU I/O port Pi.j corresponding to PLC I/O port positions.
A kind of 7. safety PLC implementation method of rapid configuration hardware resource according to claim 6, it is characterised in that institute
Stating PLC-CS parameter lists structure also includes PLC I/O port parameters：Required according to PLC type number, ginseng is set to the I/O ports of configuration
Number；It is sky during without type parameter；
A kind of 8. safety PLC implementation method of rapid configuration hardware resource according to claim 7, it is characterised in that institute
Call configuration option PLC-CS when stating operation PLC in step (3), completing the implementation method of I/O driving Command Line Parsing includes：
When running PLC, elder generation of PLC operating system softwares call configuration option PLC-CS, recorded according to parameter list successively according to PLCI/
O port type of switch amount input (DI), output switch parameter (DO), analog input (AI), analog output (AO) several types
I/O driving configurations are completed into I/O ports corresponding to CPU, implementation method is as follows：
1. PLC I/O port types：LC I/O port types are read, (DI), output switch parameter are inputted according to PLC port switch amount
(DO), analog input (AI) is different with analog output (AO) polytype calls different configurators；
2. PLC I/O port positions：According to PLC I/O port positions, configurator is sequentially completed；
3. PLC I/O port parameters：According to PPLC I/O port parameters, corresponding I/O ports are matched somebody with somebody according to configuration parameter
Put processing；
4. CPU I/O port Pi.j：The CPU I/O port Pi.j corresponding to the PLC I/O ports being currently configured are chosen, carry out I/
O driving configurations.
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