CN105446927B - Serial port communication method based on generating set historical record - Google Patents
Serial port communication method based on generating set historical record Download PDFInfo
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- CN105446927B CN105446927B CN201510782405.XA CN201510782405A CN105446927B CN 105446927 B CN105446927 B CN 105446927B CN 201510782405 A CN201510782405 A CN 201510782405A CN 105446927 B CN105446927 B CN 105446927B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention provides a kind of serial port communication method based on generating set historical record, and this method comprises the following steps：Step 1, the data model of historical record content is established, the data model includes record type, record label, record numerical value, record high alarm setting numerical value, record low alarm setting numerical value, record date and record time；To each data distribution address and sort, to each data distribution memory headroom；Step 2：Historical record communication data packet is established, the historical record communication data packet includes reading historical record and removes historical record：Reading historical record includes sending and receiving, and removing historical record includes sending and receiving；Step 3：Communication realizes that generator set controller reads one or more historical record from the communication data packet of step 2.
Description
Technical field
The present invention relates to a kind of serial port communication method, specifically, relate to a kind of based on generating set historical record
Serial port communication method.
Background technology
Serial communication has tri- kinds of RS232, RS485, RS422 based on what hardware circuit design was commonly used, according to different demands
Select different serial communication modes.Based on Software for Design it is the most frequently used, it is most common be exactly Modbus serial communication protocols.By
There is its common in generating set communications industry and special place, common monitoring data are assisted using Modbus serial communications
View.And it is various for generating set historical record, its data volume complexity, during communicating, with general communication
Method needs to devote a tremendous amount of time energy on this unavoidably goes arrangement to handle, and is also easy to malfunction.
In order to solve the problem present on, people are seeking a kind of preferable technical solution always.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, there is provided a kind of working specification, flexibly, it is easy to accomplish based on
The serial port communication method of generating set historical record.
To achieve these goals, the technical solution adopted in the present invention is：It is a kind of based on generating set historical record
Serial port communication method, this method comprise the following steps：
Step 1：Establish the data model of historical record content
The data model includes record type, record label, record numerical value, record high alarm setting numerical value, record alarm
Lower numerical limit, record date and record time；To each data distribution address and sort, to each data distribution memory headroom；
Step 2：Establish historical record communication data packet
The historical record communication data packet includes reading historical record and removes historical record：
If function code 1CH is the function code for reading historical record, 1DH is the function code for removing historical record；Remember that FF00H is clear
Except historical record, 00FFH is successful to remove historical record；
Reading historical record includes sending and receiving, wherein, the transmission data packet format for reading historical record is to be sequentially arranged
Module's address, function code 1CH, recording address, record number, check code；Read historical record received data packet form be, sequentially
Module's address, function code 1CH, record number, record content, the check code of arrangement；
Removing historical record includes sending and receiving, wherein, the transmission data packet format for removing historical record is sequentially to arrange
Module's address, function code 1DH, FF00H, FF00H, the check code of row；Remove historical record received data packet form be, sequentially
Module's address, function code 1DH, 00FFH, 00FFH, the check code of arrangement；
Step 3：Communication is realized
Generator set controller reads one or more historical record from the communication data packet of step 2.
Based on above-mentioned, the record type includes stopping alarm, tripping alarm and tripping grinder alarm；The record label
Include the index of set number of event title, the record date includes record time, record month and record day, during the record
Between include record hour, record minute, record second；
Based on above-mentioned, the address sort mode of each data is 1 record type, 2 record labels, 3 record numerical value, 4 records
High alarm setting numerical value, 5 record low alarm setting numerical value, 6 record dates, 7 record times.
Based on above-mentioned, the memory headroom of each data distribution is that record type accounts for a byte, and record label accounts for two words
Section, record numerical value account for two bytes, and record high alarm setting numerical value accounts for two bytes, and record low alarm setting numerical value accounts for two bytes,
Record date accounts for three bytes, and the record time accounts for three bytes.
Based on above-mentioned, generator set controller circulation preservation historical record, when historical record exceedes the upper limit, covering first
Bar records.
The present invention has prominent substantive distinguishing features and marked improvement compared with the prior art, and specifically, the present invention passes through
Build historical record data model and communication data packets, make this method working specification, flexibly, it is simple.
Embodiment
Below by embodiment, technical scheme is described in further detail.
A kind of serial port communication method based on generating set historical record, this method comprise the following steps：
Step 1：Establish the data model of historical record content
The data model includes record type, record label, record numerical value, record high alarm setting numerical value, record alarm
Lower numerical limit, record date and record time；To each data distribution address and sort, to each data distribution memory headroom.
Wherein, the record type includes stopping alarm, tripping alarm and tripping grinder alarm；The record label includes
The index of set number of event title, the record date include record time, record month and record day, the record time bag
Include record hour, record minute, record second；
The address sort mode of each data is 1 record type, 2 record labels, 3 record numerical value, 4 record high alarm settings
Numerical value, 5 record low alarm setting numerical value, 6 record dates, 7 record times.
The memory headroom of each data distribution is that record type accounts for a byte, and record label accounts for two bytes, records number
Value accounts for two bytes, and record high alarm setting numerical value accounts for two bytes, and record low alarm setting numerical value accounts for two bytes, and record date accounts for
Three bytes, record time account for three bytes.
Step 2：Establish historical record communication data packet
The historical record communication data packet includes reading historical record and removes historical record：
If function code 1CH is the function code for reading historical record, 1DH is the function code for removing historical record；Remember that FF00H is clear
Except historical record, 00FFH is successful to remove historical record；
Reading historical record includes sending and receiving, wherein, the transmission data packet format for reading historical record is to be sequentially arranged
Module's address, function code 1CH, recording address, record number, check code；Read historical record received data packet form be, sequentially
Module's address, function code 1CH, record number, record content, the check code of arrangement；
Removing historical record includes sending and receiving, wherein, the transmission data packet format for removing historical record is sequentially to arrange
Module's address, function code 1DH, FF00H, FF00H, the check code of row；Remove historical record received data packet form be, sequentially
Module's address, function code 1DH, 00FFH, 00FFH, the check code of arrangement；
Step 3：Communication is realized
Generator set controller reads one or more historical record from the communication data packet of step 2.
Generator set controller circulation preserves historical record, when historical record exceedes the upper limit, covers first record.Example
Such as：Historical record at most preserves 1000, when historical record is more than 1000, covers first record, circulates according to this, here
Coordinate record sum, state-of-the-art record label the two parameters again, state-of-the-art record label is exactly a newest historical record here
In which bar of the address space of historical record sum distribution, such as when covering the 80th article of record, state-of-the-art record label
It is worth for 80, record sum or 1000, then the 81st article is oldest historical record, when generator set controller shows this
Bar record just becomes apparent from understanding.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among the claimed technical scheme scope of the present invention.
Claims (5)
- A kind of 1. serial port communication method based on generating set historical record, it is characterised in that：This method comprises the following steps：Step 1：Establish the data model of historical record contentThe data model includes record type, record label, record numerical value, record high alarm setting numerical value, record low alarm setting Numerical value, record date and record time；To each data distribution address and sort, to each data distribution memory headroom；Step 2：Establish historical record communication data packetThe historical record communication data packet includes reading historical record and removes historical record：If function code 1CH is the function code for reading historical record, 1DH is the function code for removing historical record；Note FF00H goes through for removing The Records of the Historian is recorded, and 00FFH is successful to remove historical record；Reading historical record includes sending and receiving, wherein, the transmission data packet format for reading historical record is the module being sequentially arranged Address, function code 1CH, recording address, record number, check code；The received data packet form for reading historical record is to be sequentially arranged Module's address, function code 1CH, record number, record content, check code；Removing historical record includes sending and receiving, wherein, the transmission data packet format for removing historical record is to be sequentially arranged Module's address, function code 1DH, FF00H, FF00H, check code；The received data packet form for removing historical record is to be sequentially arranged Module's address, function code 1DH, 00FFH, 00FFH, check code；Step 3：Communication is realizedGenerator set controller reads one or more historical record from the communication data packet of step 2.
- 2. the serial port communication method according to claim 1 based on generating set historical record, it is characterised in that：The note Recording type includes stopping alarm, tripping alarm and tripping grinder alarm；The record label includes the index of set of event title Number, the record date includes record time, record month and record day, and the record time includes record hour, record point Clock, record second.
- 3. the serial port communication method according to claim 1 based on generating set historical record, it is characterised in that：Per number According to address sort mode be 1 record type, 2 record labels, 3 record numerical value, 4 record high alarm setting numerical value, 5 record alarm Lower numerical limit, 6 record dates, 7 record times.
- 4. the serial port communication method according to claim 1 based on generating set historical record, it is characterised in that：Per number It is that record type accounts for a byte according to the memory headroom of distribution, record label accounts for two bytes, and record numerical value accounts for two bytes, Record high alarm setting numerical value accounts for two bytes, and record low alarm setting numerical value accounts for two bytes, and record date accounts for three bytes, record Time accounts for three bytes.
- 5. the serial port communication method according to claim 1 based on generating set historical record, it is characterised in that：Generator Group controller circulation preserves historical record, when historical record exceedes the upper limit, covers first record.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510782405.XA CN105446927B (en) | 2015-11-16 | 2015-11-16 | Serial port communication method based on generating set historical record |
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| CN201510782405.XA CN105446927B (en) | 2015-11-16 | 2015-11-16 | Serial port communication method based on generating set historical record |
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| CN105446927A CN105446927A (en) | 2016-03-30 |
| CN105446927B true CN105446927B (en) | 2018-03-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5903737A (en) * | 1996-03-06 | 1999-05-11 | Lg Electronics Inc. | Apparatus and method for serial data communication utilizing general microcomputer |
| CN202713370U (en) * | 2012-06-25 | 2013-01-30 | 浙江运达风电股份有限公司 | Wind turbine generator system dual serial communication device based on WP3X00 system |
| CN203324451U (en) * | 2013-07-04 | 2013-12-04 | 中能电力科技开发有限公司 | Serial port communication-based wind turbine generator operation data acquisition device |
-
2015
- 2015-11-16 CN CN201510782405.XA patent/CN105446927B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5903737A (en) * | 1996-03-06 | 1999-05-11 | Lg Electronics Inc. | Apparatus and method for serial data communication utilizing general microcomputer |
| CN202713370U (en) * | 2012-06-25 | 2013-01-30 | 浙江运达风电股份有限公司 | Wind turbine generator system dual serial communication device based on WP3X00 system |
| CN203324451U (en) * | 2013-07-04 | 2013-12-04 | 中能电力科技开发有限公司 | Serial port communication-based wind turbine generator operation data acquisition device |
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| CN105446927A (en) | 2016-03-30 |
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