CN101094110A - System and method for setting up, detecting and displaying interval time of characters inside Modbus RTU frame and between frames - Google Patents
System and method for setting up, detecting and displaying interval time of characters inside Modbus RTU frame and between frames Download PDFInfo
- Publication number
- CN101094110A CN101094110A CN 200710072521 CN200710072521A CN101094110A CN 101094110 A CN101094110 A CN 101094110A CN 200710072521 CN200710072521 CN 200710072521 CN 200710072521 A CN200710072521 A CN 200710072521A CN 101094110 A CN101094110 A CN 101094110A
- Authority
- CN
- China
- Prior art keywords
- send
- immediately
- sent completely
- completely back
- back delay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention is used for solving the issue that is the currently-used technology can't set, detect and display the intra-frame and inter-frame character interval time of Modbus RTU. The Modbus bus interface of first communication unit on master node and the Modbus of second communication unit on slave node are respectively connected on Modbus bus; setting up 3 character interval times in the master node and inputs two frames of transmission message; dividing the types of transmission messages into two types, namely error type 1 and error type 2, and transmitting them; according to the detected time interval, the slave node divides and displays the received messages.
Description
Technical field
The present invention relates to be provided with the interframe character pitch time in a kind of Modbus RTU frame and detect the technique for displaying field.
Background technology
Field bus technique has been applied to industry spot more and more.The Modbus bus is simple with its agreement especially, implement easily, cost performance is high, reliability advantages of higher and obtained application more and more widely.Setting with the interframe character pitch time in the frame is one of Modbus rtu protocol key technology, the Modbus rtu protocol is by to distinguishing the initial of a frame message and finish with the detection of interframe character pitch time in the message frame, to the character pitch time handle incorrect will cause between the different Mo dbus product incompatible.With interframe character pitch time set and detection, be highly significant in the Modbus RTU frame for understanding the Modbus key technology, designing the Modbus Related product.And how at also not solving with setting and the technique for displaying problem of interframe character pitch time in the ModbusRTU frame.
Summary of the invention
The present invention be for overcome prior art exist can not realize in the Modbus RTU frame with the setting of interframe character pitch time with detect the technique for displaying problem, and then provide in a kind of Modbus RTU frame and to be provided with and to detect display system and method with the interframe character pitch time.
System of the present invention is by host node 1, form from node 2, Modbus bus 3;
Described host node 1 sends button 1-5 by the first keyboard 1-1, first microprocessor unit 1-2, the first display unit 1-3, the first communication unit 1-4, startup and forms; The control data output bus end of the control data output bus end of the first keyboard 1-1, startup transmission button 1-5 connects the control data input bus end of first microprocessor unit 1-2 respectively, the communication data output input bus end of the first communication unit 1-4 connects the communication data output input bus end of first microprocessor unit 1-2, and the video data output bus end of first microprocessor unit 1-2 connects the data input bus (DIB) end of the first display unit 1-3;
Form by the second keyboard 2-1, the second microprocessor unit 2-2, the second display unit 2-3, second communication unit 2-4 from node 2; The control data output bus end of the second keyboard 2-1 connects the control data input bus end of the second microprocessor unit 2-2, the communication data output input bus end of second communication unit 2-4 connects the communication data output input bus end of the second microprocessor unit 2-2, and the video data output bus end of the second microprocessor unit 2-2 connects the data input bus (DIB) end of the second display unit 2-3;
The Modbus bus interface of the first communication unit 1-4 of host node 1, all be connected in turn on the Modbus bus 3 from the Modbus bus interface of the second communication unit 2-4 of node 2.
Being provided with and detecting the method step that shows with the interframe character pitch time in its Modbus RTU frame is:
Step 1, start-up system, initialization host node 1, from node 2, the initialization content comprises timer that each processor unit is set and serial ports mode of operation, each display unit of initialization, and to be provided with from the address of node 2 be that 01h, definition counter variable TCOUNT and its initial value are set to 0;
Step 5, the character pitch time that the transmission message of host node 1 is set are type of error 1, are about to a frame message and split into two frames; The startup of pressing in the host node 1 sends button 1-5, the sending order and the time interval that host node 1 sends character in the message are: send 01h, be sent completely back delay t1 and send 08h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t3 and send AAh immediately, be sent completely back delay t1 and send 55h immediately, be sent completely back delay t1 and send CRCL1 immediately, be sent completely back delay t1 and send CRCH1 immediately, be sent completely back delay t3 and send 01h immediately, be sent completely back delay t1 and send 06h immediately, be sent completely back delay t1 and send 11h immediately, be sent completely back delay t1 and send 22h immediately, be sent completely back delay t3 and send CCh immediately, postpone t1 after being sent completely and send 33h immediately, be sent completely back delay t1 and send CRCL2 immediately, be sent completely back delay t1 and send CRCH2 immediately;
Step 6, the character pitch time that the transmission message of host node 1 is set are type of error 2, are about to two frame messages and are merged into a frame; The startup of pressing in the host node 1 sends button 1-5, the sending order and the time interval that host node 1 sends character in the message are: send 01h, be sent completely back delay t1 and send 08h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send AAh immediately, be sent completely back delay t1 and send 55h immediately, be sent completely back delay t1 and send CRCL1 immediately, be sent completely back delay t1 and send CRCH1 immediately, be sent completely back delay t1 and send 01h immediately, be sent completely back delay t1 and send 06h immediately, be sent completely back delay t1 and send 11h immediately, be sent completely back delay t1 and send 22h immediately, be sent completely back delay t1 and send CCh immediately, postpone t1 after being sent completely and send 33h immediately, be sent completely back delay t1 and send CRCL2 immediately, be sent completely back delay t1 and send CRCH2 immediately;
Step 7, the character pitch time that the transmission message of host node 1 is set are type of error 3, promptly do not cause producing error character because of blanking time of the adjacent character that sends message meeting the Modbus agreement; The startup of pressing in the host node 1 sends button 1-5, the sending order and the time interval that host node 1 sends character in the message are: send 01h, be sent completely back delay t1 and send 08h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t2 and send AAh immediately, be sent completely back delay t1 and send 55h immediately, be sent completely back delay t1 and send CRCL1 immediately, be sent completely back delay t1 and send CRCH1 immediately, be sent completely back delay t3 and send 01h immediately, be sent completely back delay t1 and send 06h immediately, be sent completely back delay t1 and send 11h immediately, be sent completely back delay t1 and send 22h immediately, be sent completely back delay t2 and send CCh immediately, postpone t1 after being sent completely and send 33h immediately, be sent completely back delay t1 and send CRCL2 immediately, be sent completely back delay t1 and send CRCH2 immediately;
Step 8, receive to interrupt by serial ports and timer overflows the blanking time of interrupting detecting between adjacent two characters from node 2; Timer is operated in automatic heavy duty and goes into pattern, when timing reaches 0.5 times of character during the time, produces to overflow interruption; Whenever receive a character from node 2, promptly produce a serial ports and interrupt, to timer and TCOUNT zero clearing, timer and TCOUNT restart counting immediately in serial ports reception interrupt service routine; Timer whenever overflows once, promptly counter variable TCOUNT is done add-one operation; Value analytic message according to TCOUNT: when TCOUNT≤5, think that a frame message finishes as yet; When 5≤TCOUNT＜9, think that the character that received last time is the last character of a frame message, and, think that then this character is an error character if before next timer interrupts, receive new character; When TCOUNT 〉=9, think that the character that receives thereafter is the initial character of a new frame message;
Step 9, from node 2 according to character that receives and the blanking time between the detected adjacent character, come according to the composition of the message frame of being resolved, by the second display unit 2-3 explicit message, be followed successively by:
" message 1:01h, 08h, 00h, 00h, AAh, 55h, CRCL1, CRCH1;
" message 2:01h, 06h, 11h, 22h, CCh, 33h, CRCL2, CRCH2;
" message 3:01h, 08h, 00h, 00h;
" message 4:AAh, 55h, CRCL1, CRCH1;
" message 5:01h, 06h, 11h, 22h;
" message 6:CCh, 33h, CRCL2, CRCH2;
" message 7:01h, 08h, 00h, 00h, AAh, 55h, CRCL1, CRCH1,01h, 06h, 11h, 22h, CCh, 33h, CRCL2, CRCH2;
" message 8:01h, 08h, 00h, 00h;
" message 9: error character: AAh, 55h, CRCL1, CRCH1;
" message 10:01h, 06h, 11h, 22h;
" message 11: error character: CCh, 33h, CRCL2, CRCH2 ".
The present invention can be provided with the correct or wrong Modbus RTU message character pitch time, and can detect blanking time and show adjacent character, the visual result that it draws, its message content can embody correct and situations three kinds of mistakes, help to grasp the define mechanism of Modbus RTU character pitch time, help carrying out of Modbus bus education experiment and training the message start-stop.Its system also has advantage of simple structure.
Description of drawings
Fig. 1 is the electrical block diagram of system of the present invention.
Embodiment
Embodiment one: in conjunction with Fig. 1 present embodiment is described, the system of present embodiment is by host node 1, form from node 2, Modbus bus 3;
Described host node 1 sends button 1-5 by the first keyboard 1-1, first microprocessor unit 1-2, the first display unit 1-3, the first communication unit 1-4, startup and forms; The control data output bus end of the control data output bus end of the first keyboard 1-1, startup transmission button 1-5 connects the control data input bus end of first microprocessor unit 1-2 respectively, the communication data output input bus end of the first communication unit 1-4 connects the communication data output input bus end of first microprocessor unit 1-2, and the video data output bus end of first microprocessor unit 1-2 connects the data input bus (DIB) end of the first display unit 1-3;
Form by the second keyboard 2-1, the second microprocessor unit 2-2, the second display unit 2-3, second communication unit 2-4 from node 2; The control data output bus end of the second keyboard 2-1 connects the control data input bus end of the second microprocessor unit 2-2, the communication data output input bus end of second communication unit 2-4 connects the communication data output input bus end of the second microprocessor unit 2-2, and the video data output bus end of the second microprocessor unit 2-2 connects the data input bus (DIB) end of the second display unit 2-3;
The Modbus bus interface of the first communication unit 1-4 of host node 1, all be connected in turn on the Modbus bus 3 from the Modbus bus interface of the second communication unit 2-4 of node 2.
That the microprocessor among described first microprocessor unit 1-2, the second microprocessor unit 2-2 is all selected for use is C8051F021; What the first display unit 1-3, the second display unit 2-3 selected for use is MS12864J model liquid crystal; What the first keyboard 1-1, the second keyboard 2-1 selected for use is the Omron keyboard; What startup transmission button 1-5 selected for use is the Omron button; That the first communication unit 1-4, second communication unit 2-4 select for use is MAX485.
Being provided with and detecting the method step that shows with the interframe character pitch time in its Modbus RTU frame is:
Step 1, start-up system, initialization host node 1, from node 2, the initialization content comprises timer that each processor unit is set and serial ports mode of operation, each display unit of initialization, and to be provided with from the address of node 2 be that 01h, definition counter variable TCOUNT and its initial value are set to 0;
Step 5, the character pitch time that the transmission message of host node 1 is set are type of error 1, are about to a frame message and split into two frames; The startup of pressing in the host node 1 sends button 1-5, the sending order and the time interval that host node 1 sends character in the message are: send 01h, be sent completely back delay t1 and send 08h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t3 and send AAh immediately, be sent completely back delay t1 and send 55h immediately, be sent completely back delay t1 and send CRCL1 immediately, be sent completely back delay t1 and send CRCH1 immediately, be sent completely back delay t3 and send 01h immediately, be sent completely back delay t1 and send 06h immediately, be sent completely back delay t1 and send 11h immediately, be sent completely back delay t1 and send 22h immediately, be sent completely back delay t3 and send CCh immediately, postpone t1 after being sent completely and send 33h immediately, be sent completely back delay t1 and send CRCL2 immediately, be sent completely back delay t1 and send CRCH2 immediately;
Step 6, the character pitch time that the transmission message of host node 1 is set are type of error 2, are about to two frame messages and are merged into a frame; The startup of pressing in the host node 1 sends button 1-5, the sending order and the time interval that host node 1 sends character in the message are: send 01h, be sent completely back delay t1 and send 08h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send AAh immediately, be sent completely back delay t1 and send 55h immediately, be sent completely back delay t1 and send CRCL1 immediately, be sent completely back delay t1 and send CRCH1 immediately, be sent completely back delay t1 and send 01h immediately, be sent completely back delay t1 and send 06h immediately, be sent completely back delay t1 and send 11h immediately, be sent completely back delay t1 and send 22h immediately, be sent completely back delay t1 and send CCh immediately, postpone t1 after being sent completely and send 33h immediately, be sent completely back delay t1 and send CRCL2 immediately, be sent completely back delay t1 and send CRCH2 immediately;
Step 7, the character pitch time that the transmission message of host node 1 is set are type of error 3, promptly do not cause producing error character because of blanking time of the adjacent character that sends message meeting the Modbus agreement; The startup of pressing in the host node 1 sends button 1-5, the sending order and the time interval that host node 1 sends character in the message are: send 01h, be sent completely back delay t1 and send 08h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t2 and send AAh immediately, be sent completely back delay t1 and send 55h immediately, be sent completely back delay t1 and send CRCL1 immediately, be sent completely back delay t1 and send CRCH1 immediately, be sent completely back delay t3 and send 01h immediately, be sent completely back delay t1 and send 06h immediately, be sent completely back delay t1 and send 11h immediately, be sent completely back delay t1 and send 22h immediately, be sent completely back delay t2 and send CCh immediately, postpone t1 after being sent completely and send 33h immediately, be sent completely back delay t1 and send CRCL2 immediately, be sent completely back delay t1 and send CRCH2 immediately;
Step 8, receive to interrupt by serial ports and timer overflows the blanking time of interrupting detecting between adjacent two characters from node 2; Timer is operated in automatic heavy duty and goes into pattern, when timing reaches 0.5 times of character during the time, produces to overflow interruption; Whenever receive a character from node 2, promptly produce a serial ports and interrupt, to timer and TCOUNT zero clearing, timer and TCOUNT restart counting immediately in serial ports reception interrupt service routine; Timer whenever overflows once, promptly counter variable TCOUNT is done add-one operation; Value analytic message according to TCOUNT: when TCOUNT≤5, think that a frame message finishes as yet; When 5≤TCOUNT＜9, think that the character that received last time is the last character of a frame message, and, think that then this character is an error character if before next timer interrupts, receive new character; When TCOUNT 〉=9, think that the character that receives thereafter is the initial character of a new frame message;
Step 9, from node 2 according to character that receives and the blanking time between the detected adjacent character, come according to the composition of the message frame of being resolved, by the second display unit 2-3 explicit message, be followed successively by:
" message 1:01h, 08h, 00h, 00h, AAh, 55h, CRCL1, CRCH1;
" message 2:01h, 06h, 11h, 22h, CCh, 33h, CRCL2, CRCH2;
" message 3:01h, 08h, 00h, 00h;
" message 4:AAh, 55h, CRCL1, CRCH1;
" message 5:01h, 06h, 11h, 22h;
" message 6:CCh, 33h, CRCL2, CRCH2;
" message 7:01h, 08h, 00h, 00h, AAh, 55h, CRCL1, CRCH1,01h, 06h, 11h, 22h, CCh, 33h, CRCL2, CRCH2;
" message 8:01h, 08h, 00h, 00h;
" message 9: error character: AAh, 55h, CRCL1, CRCH1;
" message 10:01h, 06h, 11h, 22h;
" message 11: error character: CCh, 33h, CRCL2, CRCH2 ".
Claims (2)
1, is provided with the interframe character pitch time in the Modbus RTU frame and detects display system, it is characterized in that it is by host node (1), form from node (2), Modbus bus (3);
Described host node (1) sends button (1-5) by first keyboard (1-1), first microprocessor unit (1-2), first display unit (1-3), first communication unit (1-4), startup and forms; The control data output bus end of the control data output bus end of first keyboard (1-1), startup transmission button (1-5) connects a control data input bus end of first microprocessor unit (1-2) respectively, the communication data output input bus end of first communication unit (1-4) connects the communication data output input bus end of first microprocessor unit (1-2), and the video data output bus end of first microprocessor unit (1-2) connects the data input bus (DIB) end of first display unit (1-3);
Form by second keyboard (2-1), second microprocessor unit (2-2), second display unit (2-3), second communication unit (2-4) from node (2); The control data output bus end of second keyboard (2-1) connects the control data input bus end of second microprocessor unit (2-2), the communication data output input bus end of second communication unit (2-4) connects the communication data output input bus end of second microprocessor unit (2-2), and the video data output bus end of second microprocessor unit (2-2) connects the data input bus (DIB) end of second display unit (2-3);
The Modbus bus interface of first communication unit (1-4) of host node (1), all be connected in turn on the Modbus bus (3) from the Modbus bus interface of the second communication unit (2-4) of node (2).
2, be provided with and the detection display packing with the interframe character pitch time in the Modbus RTU frame, it is characterized in that its method step is:
Step 1, start-up system, initialization host node (1), from node (2), the initialization content comprises timer that each processor unit is set and serial ports mode of operation, each display unit of initialization, and to be provided with from the address of node (2) be that 01h, definition counter variable TCOUNT and its initial value are set to 0;
Step 2, first keyboard (1-1) by host node (1) were provided with the character pitch time of first microprocessor unit (1-2), 3 character pitch times that are provided with are respectively: the t1≤1.5 times character time, 1.5 character time＜t2＜3.5 times character time doubly, the t3 〉=3.5 times character time;
Step 3, first keyboard (1-1) that passes through in the host node (1) are imported two frame request messages, and be respectively: message 1 is 01h, 08h, 00h, 00h, AAh, 55h, CRCL1, CRCH1; Message 2 is 01h, 06h, 11h, 22h, CCh, 33h, CRCL2, CRCH2;
Step 4, the transmission message that host node (1) is set are correct message, promptly meet the Modbus agreement with the interframe character pitch time in the frame; The startup of pressing in the host node (1) sends button (1-5), the sending order and the time interval that host node (1) sends character in the message are: send 01h, be sent completely back delay t1 and send 08h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send AAh immediately, be sent completely back delay t1 and send 55h immediately, be sent completely back delay t1 and send CRCL1 immediately, be sent completely back delay t1 and send CRCH1 immediately, be sent completely back delay t3 and send 01h immediately, be sent completely back delay t1 and send 06h immediately, be sent completely back delay t1 and send 11h immediately, be sent completely back delay t1 and send 22h immediately, be sent completely back delay t1 and send CCh immediately, postpone t1 after being sent completely and send 33h immediately, be sent completely back delay t1 and send CRCL2 immediately, be sent completely back delay t1 and send CRCH2 immediately;
Step 5, the character pitch time that the transmission message of host node (1) is set are type of error 1, are about to a frame message and split into two frames; The startup of pressing in the host node (1) sends button (1-5), the sending order and the time interval that host node (1) sends character in the message are: send 01h, be sent completely back delay t1 and send 08h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t3 and send AAh immediately, be sent completely back delay t1 and send 55h immediately, be sent completely back delay t1 and send CRCL1 immediately, be sent completely back delay t1 and send CRCH1 immediately, be sent completely back delay t3 and send 01h immediately, be sent completely back delay t1 and send 06h immediately, be sent completely back delay t1 and send 11h immediately, be sent completely back delay t1 and send 22h immediately, be sent completely back delay t3 and send CCh immediately, postpone t1 after being sent completely and send 33h immediately, be sent completely back delay t1 and send CRCL2 immediately, be sent completely back delay t1 and send CRCH2 immediately;
Step 6, the character pitch time that the transmission message of host node (1) is set are type of error 2, are about to two frame messages and are merged into a frame; The startup of pressing in the host node (1) sends button (1-5), the sending order and the time interval that host node (1) sends character in the message are: send 01h, be sent completely back delay t1 and send 08h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send AAh immediately, be sent completely back delay t1 and send 55h immediately, be sent completely back delay t1 and send CRCL1 immediately, be sent completely back delay t1 and send CRCH1 immediately, be sent completely back delay t1 and send 01h immediately, be sent completely back delay t1 and send 06h immediately, be sent completely back delay t1 and send 11h immediately, be sent completely back delay t1 and send 22h immediately, be sent completely back delay t1 and send CCh immediately, postpone t1 after being sent completely and send 33h immediately, be sent completely back delay t1 and send CRCL2 immediately, be sent completely back delay t1 and send CRCH2 immediately;
Step 7, the character pitch time that the transmission message of host node (1) is set are type of error 3, promptly do not cause producing error character because of blanking time of the adjacent character that sends message meeting the Modbus agreement; The startup of pressing in the host node (1) sends button (1-5), the sending order and the time interval that host node (1) sends character in the message are: send 01h, be sent completely back delay t1 and send 08h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t1 and send 00h immediately, be sent completely back delay t2 and send AAh immediately, be sent completely back delay t1 and send 55h immediately, be sent completely back delay t1 and send CRCL1 immediately, be sent completely back delay t1 and send CRCH1 immediately, be sent completely back delay t3 and send 01h immediately, be sent completely back delay t1 and send 06h immediately, be sent completely back delay t1 and send 11h immediately, be sent completely back delay t1 and send 22h immediately, be sent completely back delay t2 and send CCh immediately, postpone t1 after being sent completely and send 33h immediately, be sent completely back delay t1 and send CRCL2 immediately, be sent completely back delay t1 and send CRCH2 immediately;
Step 8, receive to interrupt by serial ports and timer overflows the blanking time of interrupting detecting between adjacent two characters from node (2); Timer is operated in automatic heavy duty and goes into pattern, when timing reaches 0.5 times of character during the time, produces to overflow interruption; Whenever receive a character from node (2), promptly produce a serial ports and interrupt, to timer and TCOUNT zero clearing, timer and TCOUNT restart counting immediately in serial ports reception interrupt service routine; Timer whenever overflows once, promptly counter variable TCOUNT is done add-one operation; Value analytic message according to TCOUNT: when TCOUNT≤5, think that a frame message finishes as yet; When 5≤TCOUNT＜9, think that the character that received last time is the last character of a frame message, and, think that then this character is an error character if before next timer interrupts, receive new character; When TCOUNT 〉=9, think that the character that receives thereafter is the initial character of a new frame message;
Step 9, from node (2) according to the character that receives and the blanking time between the detected adjacent character, come according to the composition of the message frame of being resolved, by second display unit (2-3) explicit message, be followed successively by:
" message 1:01h, 08h, 00h, 00h, AAh, 55h, CRCL1, CRCH1;
" message 2:01h, 06h, 11h, 22h, CCh, 33h, CRCL2, CRCH2;
" message 3:01h, 08h, 00h, 00h;
" message 4:AAh, 55h, CRCL1, CRCH1;
" message 5:01h, 06h, 11h, 22h;
" message 6:CCh, 33h, CRCL2, CRCH2;
" message 7:01h, 08h, 00h, 00h, AAh, 55h, CRCL1, CRCH1,01h, 06h, 11h, 22h, CCh, 33h, CRCL2, CRCH2;
" message 8:01h, 08h, 00h, 00h;
" message 9: error character: AAh, 55h, CRCL1, CRCH1;
" message 10:01h, 06h, 11h, 22h;
" message 11: error character: CCh, 33h, CRCL2, CRCH2 ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100725218A CN100505650C (en) | 2007-07-18 | 2007-07-18 | Method for setting up, detecting and displaying interval time of characters inside Modbus RTU frame and between frames |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100725218A CN100505650C (en) | 2007-07-18 | 2007-07-18 | Method for setting up, detecting and displaying interval time of characters inside Modbus RTU frame and between frames |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101094110A true CN101094110A (en) | 2007-12-26 |
| CN100505650C CN100505650C (en) | 2009-06-24 |
Family
ID=38992158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100725218A Expired - Fee Related CN100505650C (en) | 2007-07-18 | 2007-07-18 | Method for setting up, detecting and displaying interval time of characters inside Modbus RTU frame and between frames |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100505650C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354175A (en) * | 2011-08-01 | 2012-02-15 | 李遇浦 | Remote I/O (input/output) control system of Modbus fieldbus DI-16-route monitor |
| CN103067238A (en) * | 2012-12-28 | 2013-04-24 | 深圳市研控自动化科技有限公司 | Data collection method compatible with MODBUS bus |
| CN103995798A (en) * | 2013-02-20 | 2014-08-20 | 卡西欧计算机株式会社 | Microprocessor and arithmetic processing method |
| CN104038499A (en) * | 2014-06-17 | 2014-09-10 | 宁波三星电气股份有限公司 | MODBUS RTU protocol based data transmission method |
| CN105162671A (en) * | 2015-09-30 | 2015-12-16 | 常州铭赛机器人科技股份有限公司 | Welding table control system of arbitrary host and control method thereof |
| CN108494650A (en) * | 2018-02-07 | 2018-09-04 | 丽水博远科技有限公司 | A kind of binary signaling protocol data link layer transmission frame format |
| CN112637027A (en) * | 2020-12-22 | 2021-04-09 | 北京神经元网络技术有限公司 | Frame boundary defining device based on UART (universal asynchronous receiver/transmitter), transmitting method and receiving method |
| CN114697237A (en) * | 2022-04-15 | 2022-07-01 | 北京广利核系统工程有限公司 | Bus communication cycle test system and method |
-
2007
- 2007-07-18 CN CNB2007100725218A patent/CN100505650C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354175A (en) * | 2011-08-01 | 2012-02-15 | 李遇浦 | Remote I/O (input/output) control system of Modbus fieldbus DI-16-route monitor |
| CN102354175B (en) * | 2011-08-01 | 2014-10-15 | 李遇浦 | Remote I/O (input/output) control system of Modbus fieldbus DI-16-route monitor |
| CN103067238A (en) * | 2012-12-28 | 2013-04-24 | 深圳市研控自动化科技有限公司 | Data collection method compatible with MODBUS bus |
| CN103067238B (en) * | 2012-12-28 | 2015-09-30 | 深圳市研控自动化科技有限公司 | A kind of collecting method being compatible with MODBUS bus |
| CN103995798A (en) * | 2013-02-20 | 2014-08-20 | 卡西欧计算机株式会社 | Microprocessor and arithmetic processing method |
| CN104038499A (en) * | 2014-06-17 | 2014-09-10 | 宁波三星电气股份有限公司 | MODBUS RTU protocol based data transmission method |
| CN105162671A (en) * | 2015-09-30 | 2015-12-16 | 常州铭赛机器人科技股份有限公司 | Welding table control system of arbitrary host and control method thereof |
| CN105162671B (en) * | 2015-09-30 | 2018-04-03 | 常州铭赛机器人科技股份有限公司 | The welding stage control system and its control method of any main frame |
| CN108494650A (en) * | 2018-02-07 | 2018-09-04 | 丽水博远科技有限公司 | A kind of binary signaling protocol data link layer transmission frame format |
| CN112637027A (en) * | 2020-12-22 | 2021-04-09 | 北京神经元网络技术有限公司 | Frame boundary defining device based on UART (universal asynchronous receiver/transmitter), transmitting method and receiving method |
| CN114697237A (en) * | 2022-04-15 | 2022-07-01 | 北京广利核系统工程有限公司 | Bus communication cycle test system and method |
| CN114697237B (en) * | 2022-04-15 | 2023-12-26 | 北京广利核系统工程有限公司 | Bus communication cycle test system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100505650C (en) | 2009-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100505650C (en) | Method for setting up, detecting and displaying interval time of characters inside Modbus RTU frame and between frames | |
| CN102819512A (en) | Full-duplex communication device based on SPI and method thereof | |
| WO2018086282A1 (en) | Method and device for controlling overlay comment at front end | |
| CN104375789A (en) | Synchronous displaying method and system of tiled display screen | |
| CN101226700A (en) | Teaching experimental approach for slicing and regrouping process of IP datagram | |
| CN103793244A (en) | Method and device for displaying information on start page | |
| CN100538683C (en) | The method and apparatus and the corresponding bus system that are used for the control bus system | |
| CN101895361B (en) | Method, system and clock board for transmitting synchronous status message | |
| CN103686199A (en) | IPTV multi-window program preview method, system and terminal | |
| CN103412896A (en) | Browser resource showing method and system | |
| CN104123125A (en) | Webpage resource acquisition method and device | |
| CN101656744B (en) | Device and method for retransmitting communication protocol of cash-out machine | |
| CN115794313A (en) | Virtual machine debugging method, system, electronic equipment and storage medium | |
| CN104965702A (en) | Multi-window running method and device of intelligent terminal and intelligent terminal | |
| CN104917731A (en) | Method and system for improving data display speed, server and browser | |
| CN107290988A (en) | Robot and its teaching machine communication system and method | |
| CN105530110A (en) | Network failure detection method and related network elements | |
| CN104243513A (en) | Data transmission device of double-card navigation system | |
| CN100407680C (en) | System and method for confirming CAN node message transmission waiting condition and waiting time | |
| CN105068912A (en) | Method and apparatus for executing webpage task | |
| JPH10208148A (en) | Work indicating method/system in store system | |
| CN100463421C (en) | Device and method of detection and display of CAN error frame | |
| CN103176798A (en) | Data interaction system and data interaction method | |
| CN105812859A (en) | Data processing method and system of module TV input event | |
| CN108984206B (en) | Data sending method and equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20100718 |