CN101916079A

CN101916079A - Digital quantity output card based on FT3150

Info

Publication number: CN101916079A
Application number: CN 201010242051
Authority: CN
Inventors: 王忠福; 金晓宇; 李烁工; 吴涛
Original assignee: CNR Dalian Electric Traction R& D Center Co Ltd
Current assignee: CRRC Yangtze Co Ltd
Priority date: 2010-07-26
Filing date: 2010-07-26
Publication date: 2010-12-15
Anticipated expiration: 2030-07-26
Also published as: CN101916079B

Abstract

The invention relates to a digital quantity output card based on FT3150, wherein the core component of a RS232 physical interface which is a serial monitoring and data configuration unit comprising RS232 is MAX232; the core component of a LONWORKS bus physical interface is FT-X2; the core component of a LONWORKS intelligent transceiver is FT3150; the core component of an external memory is 29C512; the core component of a digital quantity output channel is HCPL-0630 and PVX6012. The digital quantity output card based on FT3150 is suitable to the application occasion requiring simple-function digital quantity output and a LONWORKS interface, can be used as a simple node of a digital quantity acquisition device on a LONWORKS bus and comply with the railway industrial standard TB/T 3021-2001 Railway Locomotive Vehicle Electronic Device.

Description

Digital quantity output integrated circuit board based on FT3150

Technical field

The present invention relates to a kind of digital quantity output integrated circuit board, relate in particular to and be applied to simple numerical amount output integrated circuit board on the LONWORKS bus.

Background technology

The LONWORKS Control Network is one of current comparatively popular fieldbus, and it is to be released and advocated jointly with Motorola, Toshiba company by U.S. Echelon company, forms in formal announcements in 1992.Its network chip Neuron chip is integrated whole seven layer protocols of ISO/OSI have communication and control function simultaneously, provide 34 kinds of common I/O controlling object, operating temperature range wide (40 ℃～85 ℃);

The signal transmission medium of LONWORKS Control Network can be twisted-pair feeder, line of electric force, wireless, infrared ray, optical cable, network topology forms such as supporting bus type, ring-like, free topological type, network transceivers has direct driving, EIA-485 type, three kinds of forms of transformer coupled interface, satisfied different requirements transmission signals employing simultaneously Differential Manchester Encoding, made network have very strong antijamming capability.Direct communication distance when to adopt twisted-pair feeder, baud rate be the communication network of 78bps can reach 2700m, adds that its powerful hardware supported makes to be easy to constitute the various system of function in certain spatial dimension;

The medium accesses control (MAC) of LONWORKS Control Network has adopted measurable P to adhere to CSMA (Predictive P-Persistent CSMA), makes still to keep very high handling capacity when network overload;

Network structure both can adopt master-slave mode and to equation.Exploitation, debugging and erecting equipment with equipment such as supporting node, router, gateways, integrated development environment make that the exploitation debugging of system is simple, can realize the off-line of network, online design, on-line debugging or the remote debugging by IP network.

Object Oriented method has been adopted in the network service of LONWORKS Control Network, need not take time during application programming and consider the loaded down with trivial details programming of communications portion; And it has integrated development environment, is easy to exploitation, installs and debugging.

Summary of the invention

The objective of the invention is to design a kind of digital quantity output integrated circuit board based on FT3150, this integrated circuit board has LONWORKS bus interface, RS232 interface, communications protocol is the LonTalk agreement, and the digital quantity output that is fit on various types of railway locomotive LONWORKS buses is gathered.

Technical solution of the present invention is achieved in that and comprises LONWORKS smart transceiver and coupled respectively LONWORKS bus physical interface, external memory storage, digital quantity output channel, RS232 physical interface.Described RS232 physical interface is MAX232 by serial monitoring and the data configuration unit core devices that RS232 forms promptly, described LONWORKS bus physical interface core devices is FT-X2, described LONWORKS smart transceiver core devices is FT3150, described external memory storage core devices is 29C512, and described digital quantity output channel core devices is HCPL-0630 and PVX6012.

Beneficial effect of the present invention: this integrated circuit board is by easy LONWORKS Control Network, is applicable to the digital quantity output of simple functions and needs the application scenario of LONWORKS interface.Can be used as a simple numerical amount collecting device node on the LONWORKS bus, meet railroad industry standard TB/T 3021-2001 " rolling stock's electronic installation ".

Description of drawings

The invention will be further described below in conjunction with the drawings and specific embodiments.

Fig. 1 structural principle block diagram of the present invention.

Fig. 2 LONWORKS bus physical of the present invention interface circuit figure.

Fig. 3 LONWORKS smart transceiver of the present invention circuit diagram.

Fig. 4 external memory interface circuit diagram of the present invention.

Fig. 5 digital quantity output channel of the present invention circuit diagram.

Fig. 6 RS232 physical interface circuit of the present invention figure.

Embodiment

A kind of digital quantity output integrated circuit board based on FT3150 shown in Fig. 1-6 of present embodiment design comprises that serial monitoring and the data configuration unit be made up of RS232 are RS232 physical interface, LONWORKS bus physical interface, LONWORKS smart transceiver, external memory storage, digital quantity output channel.

As an embodiment, this integrated circuit board comprises one road RS232 physical interface, LONWORKS communication interface, external memory storage, LONWORKS smart transceiver and 6 road digital quantity output channels.Running state information when one road RS232 physical interface monitor board card start-up and work, configuration integrated circuit board operational factor.External memory storage is used for integrated circuit board and deposits the operation configuration parameter.This integrated circuit board is fit to digital quantity output datas such as electric locomotive, light rail, and integrated circuit board has the LONWORKS bus interface, and communications protocol is LonTalk.The LONWORKS smart transceiver of this integrated circuit board also can be finished simple data output and serial communication function as processor simultaneously except satisfying basic LONWORKS communication need.Digital quantity output board jig based on FT3150 has 6 passage digital quantity output channels, and light-coupled isolation relay PVX6012 design is adopted in digital quantity output, and each passage all has short-circuit protection and output channel feedback function.

Described RS232 physical interface is that serial monitoring and the data configuration unit core devices that RS232 forms is MAX232, the wherein pin one 4 of smart transceiver FT3150 and pin one 6, except can be as output of basic digital quantity and the digital quantity output pin, can also be as the Data Receiving and the data transmitting pin of serial communication, the pin one 4 of FT3150 is connected to the pin one 2 of chip MAX232, data on the universal serial bus receive by the pin one 3 of MAX232, become to satisfy the signal of the electrical specification of FT3150 by MAX232 chip internal conversion process, deliver to FT3150 by the pin one 2 of MAX232 and handle; The pin one 6 of FT3150 is connected to the pin one 1 of chip MAX232, serial ports sends data and sends to the pin one 1 of MAX232 by the pin one 6 of FT3150, becomes to satisfy the electrical characteristic signal of demand on the actual serial ports physical bus by MAX232 chip internal conversion process.

Described LONWORKS bus physical interface core devices is FT-X2, wherein the pin two 8 of smart transceiver FT3150 is connected to the pin 5 of chip FT-X2, the pin of FT3150 is connected to the pin 6 of chip FT-X2, FT-X2, FT-X2 is the communication transformer of LONWORKS bus interface, in order to improve the bus Electro Magnetic Compatibility, on communication line, add additional device BAV99, electric capacity, voltage dependent resistor (VDR).

Described LONWORKS smart transceiver core devices is FT3150, smart transceiver FT3150 is except satisfying basic LONWORKS communication need, simultaneously also can be as processor, finish simple data acquisition function, FT3150 smart transceiver periphery mainly comprises monitoring chip DS1233Z-5, peripheral storage interface, data acquisition interface etc.

Described external memory storage core devices is 29C512, the data line pin of storer 29C512 directly is connected with the address wire pin with the corresponding data line pin of smart transceiver with the address wire pin, the pin 31 of chip 29C512, pin two 4, pin two 2 are respectively write signal, enable signal, chip selection signal, and the logical relation of these signals is based on that the logical OR of the read-write of smart transceiver, enable signal, address signal and the non-conversion of logical and come out.

Described digital quantity output channel core devices is HCPL-0630 and PVX6012, and light-coupled isolation relay PVX6012 design is adopted in digital quantity output, and each passage all has short-circuit protection and output channel feedback function.

The present invention is not limited to the foregoing description, and protection scope of the present invention is all classified in any equivalent concepts or change in the technical scope that the present invention discloses as.

Claims

1. the digital quantity output integrated circuit board based on FT3150 is characterized in that: comprise LONWORKS smart transceiver and coupled respectively LONWORKS bus physical interface, external memory storage, digital quantity output channel, RS232 physical interface; Described RS232 physical interface is MAX232 by serial monitoring and the data configuration unit core devices that RS232 forms promptly, described LONWORKS bus physical interface core devices is FT-X2, described LONWORKS smart transceiver core devices is FT3150, described external memory storage core devices is 29C512, and described digital quantity output channel core devices is HCPL-0630 and PVX6012.

2. the digital quantity output integrated circuit board based on FT3150 as claimed in claim 1, it is characterized in that: the pin one 4 of described smart transceiver FT3150 and pin one 6, except can be as output of basic digital quantity and the digital quantity output pin, can also be as the Data Receiving and the data transmitting pin of serial communication, the pin one 4 of FT3150 is connected to the pin one 2 of chip MAX232, data on the universal serial bus receive by the pin one 3 of MAX232, become to satisfy the signal of the electrical specification of FT3150 by MAX232 chip internal conversion process, deliver to FT3150 by the pin one 2 of MAX232 and handle; The pin one 6 of FT3150 is connected to the pin one 1 of chip MAX232, serial ports sends data and sends to the pin one 1 of MAX232 by the pin one 6 of FT3150, becomes to satisfy the electrical characteristic signal of demand on the actual serial ports physical bus by MAX232 chip internal conversion process.

3. the digital quantity output integrated circuit board based on FT3150 as claimed in claim 1, it is characterized in that: described LONWORKS bus physical interface core devices is FT-X2, wherein the pin two 8 of smart transceiver FT3150 is connected to the pin 5 of chip FT-X2, the pin of FT3150 is connected to the pin 6 of chip FT-X2, FT-X2, FT-X2 is the communication transformer of LONWORKS bus interface, adds additional device BAV99, electric capacity, voltage dependent resistor (VDR) on communication line.

4. the digital quantity output integrated circuit board based on FT3150 as claimed in claim 1, it is characterized in that: the FT3150 of described LONWORKS smart transceiver is except satisfying basic LONWORKS communication need, simultaneously also can be as processor, FT3150 smart transceiver periphery mainly comprises monitoring chip DS1233Z-5, peripheral storage interface, data acquisition interface.

5. the digital quantity output integrated circuit board based on FT3150 as claimed in claim 1, it is characterized in that: described external memory storage core devices is 29C512, and the data line pin of storer 29C512 directly is connected with the address wire pin with the corresponding data line pin of smart transceiver with the address wire pin.

6. the digital quantity output integrated circuit board based on FT3150 as claimed in claim 1; it is characterized in that: described digital quantity output channel core devices is HCPL-0630 and PVX6012; light-coupled isolation relay PVX6012 is adopted in digital quantity output, and each passage all has short-circuit protection and output channel feedback.