CN105095140A - USB-TC200 bus converter - Google Patents
USB-TC200 bus converter Download PDFInfo
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- CN105095140A CN105095140A CN201410203595.0A CN201410203595A CN105095140A CN 105095140 A CN105095140 A CN 105095140A CN 201410203595 A CN201410203595 A CN 201410203595A CN 105095140 A CN105095140 A CN 105095140A
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Abstract
The invention discloses an interface conversion device, namely a USB-TC200 bus converter for a TC-BUS bus system, which can convert a USB data flow of a PC computer into a TC-BUS-IMT bus (Inter Message Transfer, internal data transmission bus) data flow. A standard USB interface is connected with the PC, and an internal bus interface is provided to hang 100 loop cards; the USB interface supplies power to the equipment, no external power supply is needed, and an internal bus interface circuit outputs 5 V voltage and can provide current of 500 mA to peripheral equipment to the maximum for facilitating user use; and a USB power short circuit fault detection mechanism is also provided.
Description
Technical field
The invention belongs to Field Bus Control Technology field, relate to a kind of bus system DTU (Data Transfer unit), especially realize the device USB-TC200 bus converter of the conversion of PC usb data stream and TC-BUS-IMT bus data stream in TC-BUS bus system.
Background technology
In recent years, along with the progress of electronic technology develop rapidly and society, the Automated condtrol demand of people to equipment is strongly more next, for this is imperative to the low cost network management of electronic equipment.My company is the demand of satisfied on-the-spot Automated condtrol node, has developed TC-BUS fieldbus.
TC-BUS-IMT (InterMessageTransfer) internal data transfer bus, refers to operating voltage 5V, can mount 100 slave stations, communication distance 10m, communication speed 750kbps, twisted-pair feeder sectional area 1.0mm
2tC-BUS bus system, for the short-range devices communicating of IMT, solve the system communication that contains much information.
For meeting the exploitation of TC-BUS-IMT bus product, the demand of data analysis, PC is needed to access TC-BUS bus network, complete the debugging in TC-BUS-IMT bus product performance history, the data of setting and small-sized TC-BUS bus management system copy and accept, thus need a data conversion equipment to realize the conversion of PC usb data stream and TC-BUS-IMT bus data stream.
Summary of the invention
The invention provides a kind of TC-BUS bus system data conversion equipment---USB-TC200 bus converter, for realizing the conversion of PC usb data stream and TC-BUS-IMT bus data stream.It is characterized in that: described hardware circuit comprises usb circuit (1), main controller module (2), short circuit protection module (3), imt bus driver module (4), wherein:
Usb circuit (1), this socket is provided with: power end (VDD), earth terminal (GND), differential signal input/output terminal (D+) and (D-), be connected with short circuit protection module (3) with main controller module (2) respectively;
Short circuit protection module (3), this circuit is connected with main controller module (2) with usb circuit (1) respectively, the power supply status that main controller module (2) Real-Time Monitoring USB interface provides, protection system power supply reliability service;
Imt bus driver module (4), this circuit is connected with main controller module (2), completes the mutual conversion of Transistor-Transistor Logic level and imt bus signal element; And comprise bus short circuit measuring ability, protection system reliability service.
USB-TC200 bus converter according to claim 1, is characterized in that: described main controller module (2) adopts the integrated MCU chip of inner integration USB driver module.
USB-TC200 bus converter according to claim 1, is characterized in that: described imt bus driver module (4) adopts TC200 integrated chip.
USB-TC200 bus converter according to claim 1, is characterized in that: described USB-TC200 bus converter is provided with standard USB2.0 interface and 1 road imt bus interface.
USB-TC200 bus converter according to claim 4, is characterized in that: described imt bus interface adopts plug-in type connection terminal.
USB-TC200 bus converter according to claim 1, is characterized in that: described USB-TC200 bus converter uses USB to power, without the need to external power supply.
USB-TC200 bus converter according to claim 1, is characterized in that: imt bus driver module (4) exports 5V voltage, can power, provide the electric current of maximum 500mA to peripherals.
The present invention adopts following technical scheme:
1) usb circuit (1) adopts standard USB2.0 interface, utilizes the driver that operating system carries, directly can be connected with the USB interface of PC, easy for installation, can at reliably working under Win2000/XP/Vista/7.
2) main controller module (2) the USB driver module that provides crystal oscillator, reset, online serial programming and inside integrated, mainly complete control pin distribution, the function such as system clock and electrification reset is provided.
3) bus driver block (4) adopts TC200 chip to complete the modulation /demodulation function of digital communication, main controller module (2) can the short-circuit condition of Real-Time Monitoring imt bus port, the output of the control imt bus of intelligence, the safety and stability of system is protected.
4) described TC200 chip antijamming capability is strong, and inner source of stable pressure thermal stability is high, and communication speed is high, and operating voltage is wide.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of prior art of the present invention;
Fig. 2 is hardware principle block diagram of the present invention;
Fig. 3 is the usb circuit 1 of the embodiment of the present invention and the electrical schematic diagram of main controller module 2;
Fig. 4 is the electrical schematic diagram of the short circuit protection module 3 of the embodiment of the present invention;
Fig. 5 is bus driver block 4 electrical schematic diagram of the embodiment of the present invention.
Embodiment
USB-TC200 bus converter is provided with standard USB2.0 interface, imt bus interface.Imt bus interface adopts plug-in type connection terminal, forms TC-BUS-IMT bus network with loop card.4 groups of pilot lamp indicate power supply status, malfunction, transmission state and accepting state respectively.
Fig. 1 is the electrical schematic diagram of the prior art of the embodiment of the present invention, connects the USB-TC200 bus converter of user interface PC and loop card.PC can complete debugging to loop card, data analysis by USB-TC200 bus converter.
Fig. 2 is the hardware principle block diagram of the embodiment of the present invention, user sends instruction by PC, to usb circuit 1 input differential signal, in main controller module 2, differential signal is divided into TTL control signal: send signal TXD, Received signal strength RXD, receipts/send out control signal
signal is selected with master slave mode
send signal TXD, Received signal strength RXD, receipts/send out control signal
signal is selected with master slave mode
enter bus driver block 4, TTL signal respectively to modulate through imt bus driver module 4, final bus signals will be sent to loop card.
Fig. 3 is the usb circuit 1 of the embodiment of the present invention and the electrical schematic diagram of main controller module 2.The USB signal of the standard that is input as of main controller module 2, comprising :+5V power supply (VDD), power supply ground (GND), differential data signals (D+) and (D-); Export the TTL control signal for standard.USB signal, through magnetic bead inductance L before entering main controller module 2, such as: the value of L is 10 μ H; Differential data signals (D+) and (D-), after magnetic bead inductance, also need to be converted into current signal through current-limiting resistance R and enter main controller module 2, such as: the value of R is 33 ohm.
Fig. 4 is the electrical schematic diagram of the short circuit protection module 3 of the embodiment of the present invention.DC5V is provided by usb circuit 1; after main controller module 2 powers on; 5VShortDect pin provides 5V voltage; make triode VT2 conducting; now metal-oxide-semiconductor VT1 grounded-grid; metal-oxide-semiconductor conducting; for imt bus driver module 4 provides+5V to export; now triode VT2 can maintain conducting; the 5VShortDect pin of main controller module 2 is arranged to input state, if short circuit appears in+the 5V of imt bus driver module 4, then triode is closed; realize the power supply status that main controller module 2 Real-Time Monitoring USB interface provides, protection system power supply reliability service.
Fig. 5 is imt bus driver module 4 electrical schematic diagram of the embodiment of the present invention.Take TC200 as the bus driving circuits of core, complete the mutual conversion of TTL signal and imt bus signal element, the output of the control imt bus of intelligence, and the short-circuit condition of imt bus port can be detected in real time, avoid the damage causing equipment.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. the Universal debugging equipment for TC-BUS bus system---USB-TC200 bus converter; comprise housing and internal hardware circuit; it is characterized in that: described hardware circuit comprises usb circuit (1), main controller module (2), short circuit protection module (3), imt bus driver module (4), wherein:
Usb circuit (1), this socket is provided with: power end (VDD), earth terminal (GND), differential signal input/output terminal (D+) and (D-), be connected with short circuit protection module (3) with main controller module (2) respectively;
Short circuit protection module (3), this circuit is connected with main controller module (2) with usb circuit (1) respectively, the power supply status that main controller module (2) Real-Time Monitoring USB interface provides, protection system power supply reliability service;
Imt bus driver module (4), this circuit is connected with main controller module (2), completes the mutual conversion of Transistor-Transistor Logic level and imt bus signal element; And comprise bus short circuit measuring ability, protection system reliability service.
2. USB-TC200 bus converter according to claim 1, is characterized in that: described main controller module (2) adopts the integrated MCU chip of inner integration USB driver module.
3. USB-TC200 bus converter according to claim 1, is characterized in that: described imt bus driver module (4) adopts TC200 integrated chip.
4. USB-TC200 bus converter according to claim 1, is characterized in that: described USB-TC200 bus converter is provided with standard USB2.0 interface and 1 road imt bus interface.
5. USB-TC200 bus converter according to claim 4, is characterized in that: described imt bus interface adopts plug-in type connection terminal.
6. USB-TC200 bus converter according to claim 1, is characterized in that: described USB-TC200 bus converter uses USB to power, without the need to external power supply.
7. USB-TC200 bus converter according to claim 1, is characterized in that: imt bus driver module (4) exports 5V voltage, can power, provide the electric current of maximum 500mA to peripherals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203595.0A CN105095140A (en) | 2014-05-15 | 2014-05-15 | USB-TC200 bus converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203595.0A CN105095140A (en) | 2014-05-15 | 2014-05-15 | USB-TC200 bus converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105095140A true CN105095140A (en) | 2015-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410203595.0A Pending CN105095140A (en) | 2014-05-15 | 2014-05-15 | USB-TC200 bus converter |
Country Status (1)
| Country | Link |
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| CN (1) | CN105095140A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776614A (en) * | 2021-01-12 | 2021-12-10 | 青岛鼎信通讯股份有限公司 | TC-BUS electronic remote water meter circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030212848A1 (en) * | 2002-05-09 | 2003-11-13 | Wen-Tsung Liu | Double interface CF card |
| CN201084145Y (en) * | 2007-10-19 | 2008-07-09 | 陕西海泰电子有限责任公司 | USB-GPIB interface converter |
| CN202694039U (en) * | 2012-07-09 | 2013-01-23 | 四川九洲电器集团有限责任公司 | Adapter circuit |
| CN103019999A (en) * | 2013-01-10 | 2013-04-03 | 青岛鼎信通讯股份有限公司 | USB-PDC (universal serial bus-powered distributed control) bus converter |
| CN203435006U (en) * | 2013-06-08 | 2014-02-12 | 青岛鼎信通讯股份有限公司 | Bus isolator |
-
2014
- 2014-05-15 CN CN201410203595.0A patent/CN105095140A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030212848A1 (en) * | 2002-05-09 | 2003-11-13 | Wen-Tsung Liu | Double interface CF card |
| CN201084145Y (en) * | 2007-10-19 | 2008-07-09 | 陕西海泰电子有限责任公司 | USB-GPIB interface converter |
| CN202694039U (en) * | 2012-07-09 | 2013-01-23 | 四川九洲电器集团有限责任公司 | Adapter circuit |
| CN103019999A (en) * | 2013-01-10 | 2013-04-03 | 青岛鼎信通讯股份有限公司 | USB-PDC (universal serial bus-powered distributed control) bus converter |
| CN203435006U (en) * | 2013-06-08 | 2014-02-12 | 青岛鼎信通讯股份有限公司 | Bus isolator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776614A (en) * | 2021-01-12 | 2021-12-10 | 青岛鼎信通讯股份有限公司 | TC-BUS electronic remote water meter circuit |
| CN113776614B (en) * | 2021-01-12 | 2023-08-11 | 青岛鼎信通讯股份有限公司 | TC-BUS electronic remote water meter circuit |
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Application publication date: 20151125 |
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