CN202939598U - RS (Recommended Standard) 485/RS 422 bus test board - Google Patents
RS (Recommended Standard) 485/RS 422 bus test board Download PDFInfo
- Publication number
- CN202939598U CN202939598U CN2012206214975U CN201220621497U CN202939598U CN 202939598 U CN202939598 U CN 202939598U CN 2012206214975 U CN2012206214975 U CN 2012206214975U CN 201220621497 U CN201220621497 U CN 201220621497U CN 202939598 U CN202939598 U CN 202939598U
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Abstract
The utility model relates to an RS (Recommended Standard) 485/RS 422 bus test board, which comprises a USB (Universal Serial Bus) driver module, and a data processing module, wherein the USB driver module is provided with a USB interface connected with a USB bus of an upper computer, and used for implementing data exchange between a detection software arranged in the upper computer and the data processing module; and the data processing module is provided with a universal data serial interface for connecting an RS 485 or RS 422 bus, is connected with the USB driver module, receives a control instruction from the detection software and transmits detection data to the RS 485 or RS 422 bus, then receives feedback data from the RS 485 or RS 422 bus for analytic operation to obtain a detection result, and then sends the detection result to the detection software of the upper computer. The RS 485/RS 422 bus test board has the advantages of being relatively small in size and weight and convenient to use.
Description
【Technical field】
The utility model is related to a kind of RS485/RS422 bus tests plate, and in particular to one kind can be used for the RS485/RS422 bus test plates for detecting two kinds of bus protocols (RS485 bus protocols, RS422 bus protocols) and corresponding two kinds of bus termination functions of the equipments.
【Background technology】
RS485/RS422 buses are widely used in the every field such as Aeronautics and Astronautics now, therefore its test board is also applied and developed therewith, and many products are released, but generally RS485/RS422 bus tests plate carries out be connected with panel computer realization and the communication of host computer with EBIs such as CPCI, PXI, ISA, PCI.And their bus slot such as CPCI, PXI, ISA, PCI is all strip, space-consuming and weight are relatively large.
【Utility model content】
The technical problems to be solved in the utility model is to provide a kind of RS485/RS422 bus tests plate, and its volume and weight is relatively small and easy to use,.
Above-mentioned technical problem is solved by the following technical programs：
A kind of RS485/RS422 bus tests plate, it is characterised in that including：
USB drive modules, it is provided with the USB interface being connected with the usb bus of host computer, for realizing inspection software and data processing module progress data exchange located at host computer；
Data processing module, it is provided with the conventional data serial line interface for being used for connecting RS485 buses or RS422 buses, it connects USB drive modules, it receives the control instruction from inspection software and sends detection data to RS485 buses or RS422 buses, then receive feedback data from RS485 buses or RS422 buses and carry out analytic operation to draw testing result, then testing result is sent to the inspection software of host computer.
The USB drive modules include the USB interface and USB interface driving chip being connected with each other, and USB interface driving chip is connected with data processing module.
Also include：Program storage block, it is connected with data processing module, the system program for storing RS485/RS422 bus test plates；Data memory module, it is connected with data processing module, for preserving operational data.
Program storage block uses capacity for 1M, model SST39LF800A FLASH chip, and data memory module uses capacity for 1M, model IS62WV51216BLL-55TI sram chip.
Data processing module uses fpga chip, fpga chip is provided with S698 processor cores and the 4 tunnel conventional data serial line interfaces for connecting RS485 buses or RS422 buses, S698 processor cores are connected with conventional data serial line interface, and S698 processor cores complete data operation processing function and control function.
The model EP3C55F484 of the fpga chip.
As seen from the above technical solution, the utility model connects host computer by being provided with the USB drive modules of USB interface, make full use of the convenience of usb bus, the characteristics of plug and play, volume and weight is relatively small, it is easy to carry, while so that becoming more convenient with the attended operation of host computer, consequently facilitating improving operating efficiency；Moreover, also relative reduction production cost.
【Brief description of the drawings】
Fig. 1 is concrete structure block diagram of the present utility model.
【Embodiment】
As shown in figure 1, a kind of RS485/RS422 bus tests plate, including data processing module and be connected with data processing module USB drive modules, program storage block, data memory module.
USB drive modules include the USB interface and USB interface driving chip being connected with each other, USB interface driving chip is connected with data processing module, USB interface is used for the usb bus for being connected with the host computer of inspection software, USB interface driving chip is the middle bridge of the data double-way transmission of usb bus and data processing module, data from usb bus are transferred to data processing module by USB interface driving chip switching levels, or the data sent from data processing module are sent to usb bus up by USB interface driving chip switching levels；USB interface driving chip uses ISP1582 chips, supports USB2.0 high speed/full speed both of which, there is provided parallel interface by compatible USB1.1, it is easy to realizes and is connected with microprocessor；
Data processing module, for receiving the data on usb bus or/and tested bus and being handled, and the data after processing is sent on usb bus or/and tested bus；It uses the model EP3C55F484 of ALTERA companies fpga chip, fpga chip is provided with S698 processor cores and the 4 tunnel conventional data serial line interfaces for connecting tested bus, S698 processor cores are connected with conventional data serial line interface, S698 processor cores complete data operation processing function and control function, and it is RS485 buses or RS422 buses to be tested bus；
Program storage block, the system program for storing RS485/RS422 bus test plates, it uses capacity for 1M, model SST39LF800A FLASH chip；
Data memory module, for preserving operational data, uses capacity for 1M, model IS62WV51216BLL-55TI sram chip.
The application example of above-mentioned RS485/RS422 bus tests plate：
The usb bus of the host computer of inspection software is connected with by the USB interface of USB drive modules, is connected by conventional data serial line interface and be connected with corresponding bus apparatus in tested bus, tested bus；Start host computer and RS485/RS422 bus test plates, the output detection instruction of PC control RS485/RS422 bus tests plate is given to tested bus, RS485/RS422 bus tests plate receives feedback data from tested bus, and receive data progress operational analysis to draw testing result by data processing module, and feedback is given to host computer, so as to complete to detect the bus protocol of tested bus and corresponding bus apparatus function, it is RS485 buses or RS422 buses to be tested bus.
The utility model is not limited to above-described embodiment, simple replacement based on above-described embodiment, not making creative work, should belong to the scope of the utility model exposure.
Claims (7)
1. a kind of RS485/RS422 bus tests plate, it is characterised in that including：
USB drive modules, it is provided with the USB interface being connected with the usb bus of host computer, for realizing inspection software and data processing module progress data exchange located at host computer；
Data processing module, it is provided with the conventional data serial line interface for being used for connecting RS485 buses or RS422 buses, it connects USB drive modules, it receives the control instruction from inspection software and sends detection data to RS485 buses or RS422 buses, then receive feedback data from RS485 buses or RS422 buses and carry out analytic operation to draw testing result, then testing result is sent to the inspection software of host computer.
2. a kind of RS485/RS422 bus tests plate according to claim 1, it is characterised in that the USB drive modules include the USB interface and USB interface driving chip being connected with each other, USB interface driving chip is connected with data processing module.
3. a kind of RS485/RS422 bus tests plate according to claim 2, it is characterised in that the model ISP1582 chips of USB interface driving chip.
4. a kind of RS485/RS422 bus tests plate according to claim 1, it is characterised in that also include：
Program storage block, it is connected with data processing module, the system program for storing RS485/RS422 bus test plates；
Data memory module, it is connected with data processing module, for preserving operational data.
5. a kind of RS485/RS422 bus tests plate according to claim 4, it is characterized in that, program storage block uses capacity for 1M, model SST39LF800A FLASH chip, and data memory module uses capacity for 1M, model IS62WV51216BLL-55TI sram chip.
6. a kind of RS485/RS422 bus tests plate according to claim 1, it is characterized in that, data processing module uses fpga chip, fpga chip is provided with S698 processor cores and the 4 tunnel conventional data serial line interfaces for connecting RS485/RS422 buses, S698 processor cores are connected with conventional data serial line interface, and S698 processor cores complete data operation processing function and control function.
7. a kind of RS485/RS422 bus tests plate according to claim 6, it is characterised in that the model EP3C55F484 of the fpga chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206214975U CN202939598U (en) | 2012-11-21 | 2012-11-21 | RS (Recommended Standard) 485/RS 422 bus test board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206214975U CN202939598U (en) | 2012-11-21 | 2012-11-21 | RS (Recommended Standard) 485/RS 422 bus test board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939598U true CN202939598U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206214975U Expired - Lifetime CN202939598U (en) | 2012-11-21 | 2012-11-21 | RS (Recommended Standard) 485/RS 422 bus test board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939598U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070746A (en) * | 2017-04-10 | 2017-08-18 | 秦皇岛翼维思航空线缆有限公司 | A kind of comprehensive cable tester and its method of testing |
| CN108108325A (en) * | 2016-11-30 | 2018-06-01 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of RS422 monitoring bus system |
-
2012
- 2012-11-21 CN CN2012206214975U patent/CN202939598U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108108325A (en) * | 2016-11-30 | 2018-06-01 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of RS422 monitoring bus system |
| CN107070746A (en) * | 2017-04-10 | 2017-08-18 | 秦皇岛翼维思航空线缆有限公司 | A kind of comprehensive cable tester and its method of testing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |