CN204406186U - A kind of fieldbus controller - Google Patents

Abstract

A kind of fieldbus controller, this controller comprise be connected two Ethernet interface DM9000A, logic controller XC9536,16 BITBUS network transceiver ALVC16245, dual port RAM, X5045EEPROM storer, RM9200 processor, 32M flash memory, 128M SDRAM storer, CAN DC/DC isolated from power, optical coupling isolator A, optical coupling isolator B, half-duplex differential transceiver, 2 tunnel CAN controller SJA1000T, CAN transceiver 82C250,5V system power supply, 485 communication DC/DC isolated from power, plate level universal serial bus and dual port RAM bus interface; The utility model fieldbus controller is easy to produce and implement, and control function block is abundant, system realizes simply, reliability is high.

Description

A kind of fieldbus controller

Technical field

The utility model relates to power plant's Field Bus Control Technology field, is specifically related to a kind of fieldbus controller.

Background technology

Field bus control system (Fieldbus Control System, be called for short FCS) be real-time communication control network by the field controller of the robotization bottom and field intelligent instrument apparatus interconnection, it follows all or part of communications protocol of the OSI open system interconnection reference model of ISO, can realize the digital communication of bidirectional linked list multinode.FCS is the production run automaton of new generation of a full dispersion, total digitalization, Full-open and interoperable, is the real-time network control system by the field controller of the robotization bottom and field intelligent instrument apparatus interconnection.FCS is made up of multistage fieldbus, all kinds of intelligent field instrument equipment (comprising flow, pressure, temperature, actuator and auxiliary unit etc.), man-machine interface (Industrial PC Computer), configuration software, monitoring software and network software etc.More popular fieldbus mainly contains at present: CAN, PROFIBUS, FF, HART etc.Network node in FCS can be independently control field apparatus, and exchange field control information and management information with control station, extremely be convenient to control station and thoroughly field apparatus is distributed to the real-time monitor and managment of field apparatus, controlling functions, greatly improve the reliability of system, maintainability.

Power plant's automatic control system is experiencing at present upgrades from traditional DCS to FCS, the application of domestic power plant field bus control system mainly adopts Ai Mosheng, Siemens, the system of the offshore companies such as ABB, ins and outs and the realization of each system are all nonopen to user and power plant technician.All there is highly coupling in the controller that each manufacturer provides and IO fastener, is supplied to outside communication interface single, and the technology of controller and composition are to user cipher device, and whole card is replaced to cause the component damage of field controller just to require.The 26S Proteasome Structure and Function of controller can not meet the various demands of domestic power plant completely; And often various engineering and technical matters is there is in day-to-day operation maintenance process, the solution of these problems all needs control system producer to provide technical service and support, very high expense can be produced like this, add the operating cost of power plant, develop the top priority that a domestic field bus control system has become domestic electrical scientific research institutions.

The primary limitation of prior art has:

(1) external fieldbus controller purchase cost is high, and technology is closed, and the thermal technology that power plant is common and technician deal with difficult to daily engineering and technical matters.

(2) fieldbus controller is by foreign system supplier's monopoly, adopts external field bus control system additionally can produce huge service, training and technical support expense, causes the expenditure that power plant's later stage is unnecessary.

(3) fieldbus controller each technology is established one's own system at present, and the standard interface provided outside is few, or underground external interface, and the expansion for system is very difficult.

(4) existing controller online modification configuration and lower dress efficiency low, length consuming time, poor stability, General System does not support that configuration fills function down online.

(5) controller controls the complicated operation of configuration and system database configuration, man-machine interface, operating habit is unfriendly, because control system is all system foreign system, adopt English interface more, cause domestic Power Plant Thermal Process and engineering staff's operation and use inconvenient.

(6) control algolithm that provides of controller and functional block imperfection, fully can not meet the requirement of domestic power plant complex control and energy saving optimizing, usually needs to carry out complicated configuration work could realize to realize a certain function.

Summary of the invention

In order to solve above-mentioned prior art Problems existing, the purpose of this utility model is to provide a kind of fieldbus controller and method, and this controller is easy to produce and implement, and control function block is abundant, system realizes simply, reliability is high.

For reaching above object, the utility model adopts following technical scheme:

A kind of fieldbus controller (being called for short FCP01), two the Redundant Ethernet interface DM9000A externally provided are provided, the RM9200 be connected by BDB Bi-directional Data Bus with Ethernet interface DM9000A, data pin SD0 to the SD15 of Ethernet interface DM9000A is connected with data pin D0 to the D15 of RM9200 respectively, wherein SD0 connects D0, SD1 connects D1, the like, SD15 connects D15; The CS# pin of Ethernet interface DM9000A is connected with the NCS3 pin of RM9200, the RESET pin of Ethernet interface DM9000A is connected with the PA25 of RM9200, the INT pin of Ethernet interface DM9000A is connected with the PA23 of RM9200, and the CMD pin of Ethernet interface DM9000A is connected with the A2 pin of RM9200;

Also comprise dual port RAM, two-way CAN SJA1000Controler T, logic controller XC9536 and be positioned at dual port RAM, 16 BITBUS network transceivers between CAN SJA1000Controler T and RM9200, pin 1A1 to the 1A8 of 16 BITBUS network transceivers, 2A1 to 2A8 connects data pin D0 to the D15 of RM9200 respectively, pin 1B1 to the 1B8 of 16 BITBUS network transceivers, 2B1 to 2B8 connects data pin D0 to the D15 of dual port RAM respectively, wherein 1B1 connects D0, 1B2 connects D2, order 2B8 connects D15 according to this, CAN controller SJA1000T accesses 1B1 to the 1B8 of 16 BITBUS network transceivers successively by pin D0 to D7, dual port RAM right-hand member pin D0 to D7 is connected to LD0 to LD7 position corresponding to negative slot successively by bus interface, the bus interface of read-write operation is externally provided, the clock pins SCK of CAN SJA1000Controler T, data line MOSI with MISO is connected with the clock line SCK in RM9200 universal serial bus, data line MOSI with MISO respectively, pin TCK1, TDO1, TDI1 of RM9200 are connected with 10 with the pin one 1,24,9 of TMS1 difference andlogic control device XC9536, and pin DTREQ and DTREQ0 of logic controller XC9536 accesses the enable pin EN of 16 BITBUS network transceivers and the CANE pin of CAN controller respectively,

Also comprise X5045EEPROM storer, the RESET pin of X5045EEPROM storer connects 115 pins of RM9200 by RESET line, X5045EEPROM storer is connected by SPI universal serial bus with RM9200, and the clock line SCK that X5045EEPROM storer is corresponding with the SPI universal serial bus of RM9200, data line MOSI with MISO are of the same name, and pin is connected;

Also comprise 32M flash memory FLASH, 24 address pin A1 to A24 of 32M flash memory FLASH access address pin A1 to the A24 of RM9200 respectively, and 32M flash memory FLASH accesses 16 position datawire D0 to the D15 of RM9200 successively by 16 data pin D0 to D15, the pin one 66 of RM9200 connects the chip selection signal line CS of 32M flash memory FLASH;

Also comprise 128M SDRAM storer, 128M SDRAM storer accesses address bus A0 to the A25 of RM9200 respectively by 26 address wire A0 to A25,16 data line D0 to D15 of 128M SDRAM storer access 16 position datawire D0 to D15 of RM9200 data line respectively, and the chip selection signal SDCS of 128MSDRAM storer accesses the chip selection signal line CS of RM9200;

Also comprise optical coupling isolator A, optical coupling isolator B and half-duplex differential transceiver, the pin TXD0 of RM9200, TXD0 and CTS0 is respectively by transmission signal line TXD, Received signal strength line RXD is connected with optical coupling isolator A and optical coupling isolator B respectively with enable signal line EN485, optical coupling isolator A is connected half-duplex differential transceiver with optical coupling isolator B respectively by transmission signal line and Received signal strength line, half-duplex differential transceiver accesses positive and negative signal wire 485+, the 485-of 485 communications by pin 485+ and 485-;

Two-way CAN SJA1000Controler T is upwards interconnected by the data line of data line and address wire and RM9200 and address wire; Two-way CAN SJA1000Controler T is downwards all by pin CAN+, CAN-is connected respectively to optocoupler C and optocoupler D, two optocoupler C and optocoupler D are connected to CAN transceiver 82C250 respectively by TxD and RxD, the ground wire of two-way CAN transceiver 82C250 is respectively by the right-hand member ground of DC/DC isolated from power, isolation fieldbus controller ground wire and outside CAN ground wire, two-way CAN transceiver 82C250 directly accesses CAN+ and the CAN-difference mode signal of negative slot respectively by pin D0 and D1, be then connected to I/O module by CAN.

5V system power supply is adopted to power, the power supply of CAN transceiver 82C250, optical coupling isolator A and optical coupling isolator B provides 5V direct current supply by DC/DC isolated from power, CAN isolated from power left end ground wire GND, right-hand member meets CAN ground wire CGND, 485 communication power supplies isolation left ends meet 485 communicatively 485GND1, and right-hand member meets fieldbus controller ground wire GND.

Described 32M flash memory FLASH adopt two panels and mode, monolithic capacity is 16M × 16, forms 32M memory capacity.

Described 128M SDRAM storer adopt two panels and mode, monolithic capacity is 32M × 16, forms the storage space of 128M × 8.

Described fieldbus controller represents module running status by red/green LED light on panel, pilot lamp comprises 8 altogether, the name of each pilot lamp is called operation/trouble light (being abbreviated as RUN), master/slave lamp (M/S), network interface 1 state (HSE1), network interface 2 state (HSE2), controller failure status lamp 4 (LED1 ~ LED4); Wherein operation/trouble light has red and green two kinds of colors, red expression operation exception, green expression is normal, and the expression of master/slave lamp green is main card, yellow expression is standby card, and whether network interface 1 state and network interface 2 state are in connection status by flicker expression two network interfaces; These 4 status lamps of controller failure status lamp give 15 kinds of duties of controller according to 8421 codings from top to bottom, comprising: FLASH fault, SDRAM fault, dual port RAM fault, CAN1 fault, CAN2 fault, network interface A fault, network interface B fault, network interface A work, network interface B work, I/O type mismatch, I/O communication overtime, GPS Synchronization timeout, FTP connection failure, without configuration file and reservation position.

The control method of fieldbus controller described above, CAN data interaction, the I/O module of outside various function carries out communication by the CAN interface of two redundancies, the input data of I/O module are sent to CAN, fieldbus controller receives the data from CAN by CAN transceiver 82C250, then through optocoupler C or optocoupler D, data enter CAN SJA1000Controler T, the input data that CAN SJA1000Controler T receives I/O module are sent to 16 BITBUS network transceivers by data bus, then notify that RM9200 receives data by look-at-me line INT, the data of exterior I/O module are just input to fieldbus controller, send CAN process data packet, RM9200 needs to produce CAN packet according to output, the CAN packet produced first be sent in 16 BITBUS network transceivers to rank etc. to be sent, CAN SJA1000Controler T judges the duty of CAN, if CAN is in idle condition, then from 16 BITBUS network transceiver queues, read CAN packet, then by CAN Packet Generation to CAN, exterior I/O module is selected to accept one's own CAN packet according to the address information of data.

485 communication datas mutual, when there being outside 485 data input fieldbus controller, first outside 485 data are sent to 485 buses, accept through half-duplex differential transceiver, are sent to the input of RM9200 serial ports through optical coupling isolator A or optical coupling isolator B by universal serial bus RxD, by look-at-me notice RM9200 process after data have accepted, when fieldbus controller needs 485 data to output to outside 485 module, data are only needed to be sent to 485 buses, outside 485 modules can read 485 data from 485 buses automatically, fieldbus controller is when sending data to 485 buses, first detect 485 buses and whether be in ready state, if be in the free time, so just by TxD signal wire, data serial is write half-duplex differential transceiver, then send enable signal EN485 and notify that data are write 485 buses by half-duplex differential transceiver.

Bus interface by dual port RAM between fieldbus controller and PROFIBUS address card FPB01 or FPB02 carries out communication; The communication of dual port RAM data is two-way, when fieldbus controller needs data to be write PROFIBUS address card, first write data into after in 16 BITBUS network transceivers, and then data are sent to from 16 BITBUS network transceivers the right output port of the dual port RAM of PROFIBUS address card, then sending look-at-me notice PROFIUBS address card by bus interface has new data write; When outside PROFIUBS address card or third party's fastener have data to need to be sent to fieldbus controller by dual port RAM, by bus interface data write fieldbus controller dual port RAM right output port, then look-at-me notice fieldbus controller read data is sent, after fieldbus controller receives look-at-me, data are read, as to 16 BITBUS network transceivers, then from 16 BITBUS network transceivers, data to be read into RM9200 from the left port of DPRAM; The Ethernet interface that fieldbus controller provides outside, field engineering teacher station, operator station, communication is carried out by Ethernet interface DM9000A and fieldbus controller in history station; When external data write fieldbus controller, by ethernet PHY, data are passed to Ethernet interface DM9000A, after data are passed to, by look-at-me notice RM9200 process data; When data need by Ethernet send to field engineering teacher stand, operator station time, first RM9200 gets out data, when after DSR, data is sent on Ethernet by ethernet PHY.

Described fieldbus controller realizes outer watchdog by X5045EEPROM storer, RM9200 is regularly resetted to X5045EEPROM storer by control line CT, the house dog if the time reaching setting does not reset, X5045EEPROM storer will by signal wire RESET reset RM9200.

State RM9200 can detect its all parts connected and comprise too network interface DM9000A, 32M flash memory FLASH, 128M SDRAM storer, two-way CAN SJA1000Controler T, the state of 485 communications and dual port RAM, if grave error and failure message detected, and when this mistake and failure message have injured the normal safe operation of fieldbus controller, main fieldbus controller meeting autoboot is also switched to standby fieldbus controller operation, the safety of the on-the-spot operational outfit of available protecting power plant and unit, RM9200, to the testing result of all parts be connected with it, can be shown by the controller failure status lamp of front panel, described RM9200 for the cycle carries out acquisition and processing to the data of all parts be connected with it, can process the data in 5 cycles with the multiple of 10ms or 10ms simultaneously, fieldbus controller initially powers on, first instruction and data in 32M flash memory FLASH is read in 128M SDRAM storer by RM9200, then RM9200 carries out parsing execution to the instruction and data in 128M SDRAM storer one by one, then RM9200 is by CAN SJA1000Controler T, optocoupler C, optocoupler D and CAN transceiver 82C250 sends broadcast request to CAN, after request is sent completely, RM9200 can intercept CAN, then the reply data from CAN is received, just the fastener of all access CAN is linked into fieldbus controller, then fieldbus controller just carries out the mutual and instruction interaction of normal data by CAN and outside fastener.

Initial lower dress, configuration and data message are sent Ethernet interface DM9000A by engineer station, configuration and data message are written to 32M flash memory FLASH from Ethernet interface DM9000A by RM9200, RM9200 will carry out correctness and integrity verification to data, only have and be just written into 32M flash memory FLASH by the data of correctness and integrity verification, otherwise data are just abandoned, and externally sent data and the configuration info feedback signal of mistake by Ethernet interface DM9000A; Only have after correctly completing initial lower dress, the data in 32M flash memory FLASH are read into 16 BITBUS network transceivers by RM9200, then carry out parsing to the data of reading in 16 BITBUS network transceivers and command information and perform.

Complete initial lower dress, main fieldbus controller will send to standby fieldbus controller the configuration in 32M flash memory FLASH and data message by 16 BITBUS network transceivers, dual port RAM and bus interface, sets up master-slave redundancy fieldbus controller.Active and standby fieldbus controller is the cycle carry out data and status information backup by DPRAM with 500ms, and two fieldbus controllers carry out active and standby differentiation by panel light.

Active and standby fieldbus controller is by backboard parallel bus synchrodata, and can realize no-harass switch when main fieldbus controller fault is restarted, two fieldbus controllers can realize master-slave redundancy mechanism.Master-slave redundancy connects realization by the bus of negative slot, main fieldbus controller writes standby fieldbus controller, the RM9200 of main fieldbus controller writes data by the right mouth of dual port RAM of bus interface to standby fieldbus controller, first lock, if lock successfully, write data into dual port RAM, if lock unsuccessfully, explanation dual port RAM is occupied, the RM9200 of main fieldbus controller waits for and again locks, the I/0 data field from 16 BITBUS network transceivers, data being write dual port RAM is started after locking successfully, byte recurrent wrIting is adopted when write data, ensure that the data length of write-once dual port RAM is consistent, after the data of 16 BITBUS network transceivers write dual port RAM is completed, again read the data in dual port RAM and data are tested, ensure the correctness of write data.Then dual port RAM being unlocked, unlocked the rear use to dual port RAM and entirely discharged, ensureing that dual port RAM not can not get release by occupying for a long time.

Main fieldbus controller reads the left mouth read data of dual port RAM, the flow process of read data is similar with the flow process of write, first lock, if lock unsuccessfully, illustrate that current dual port RAM is just occupied, if lock successfully, start after locking successfully, from the I/0 data field of dual port RAM, data are read 16 BITBUS network transceivers, the reading of data adopts once reads, and ensures that read operation completes in one-period.Need after read operation completes to unlock dual port RAM and discharge.

Compared to the prior art, tool has the following advantages the utility model:

(1) the utility model fieldbus controller FCP01 achieves the controller of thermal power plant's field control system, traditional DCS system and field bus system are combined togather, by FCP01 and field bus communication main website, or the communication of conventional AI, DI, AO, DO fastener, realizes the seamless combination of DCS control system and field bus control system.

(2) FCP01 hardware adopts master-slave redundancy to design, two pieces of FCP01 fasteners form main website, each other a redundancy, can realize fault and automatically switch, Guarantee control system safe and reliable operation by fault detection mechanism.

(3) FCP01 provides 2 redundant CAN bus interfaces to outside, and to the expansion of the CAN of the standard of support, and 2 redundant CAN bus interfaces can realize failover automatically, improve reliability and the security of FCP01.

(4) FCP01 provides the Ethernet interface of 2 redundancies each other to outside, supports by the operation of Ethernet to controller, and 2 Ethernet interfaces redundancy each other, improves reliability and the security of system simultaneously.

(5) FCP01 provides field-bus interface, supports the access of PROFIBUS and FF bus system.

(6) FCP01 provides dual port RAM interface, mutual with self-defining data supporting to carry out irregular data by dual port RAM interface.

(7) FCP01 provides 485 interfaces of standard to outside, supports the communication of standard 485 signal source.

(8) FCP01 externally provides abundant standard interface and self defined interface, extends the range of application of FCP01 at power plant and Third party system.

(9) FCP01 adopts advanced fault detect and recovery mechanism, can carry out real-time detection and fault recovery, externally provided various state and the stage of controlling run by the LED on FCP01 panel to the running status of FCP01.

Accompanying drawing explanation

Fig. 1 is the utility model controller architecture figure.

Fig. 2 is the utility model controller project plan figure.

Embodiment

Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.

As shown in Figure 1, a kind of fieldbus controller of the utility model, two the Redundant Ethernet interface DM9000A externally provided are provided, the RM9200 be connected by BDB Bi-directional Data Bus with Ethernet interface DM9000A, data pin SD0 to the SD15 of Ethernet interface DM9000A is connected with data pin D0 to the D15 of RM9200 respectively, and wherein SD0 connects D0, SD1 and connects D1, the like, SD15 connects D15, the CS# pin of Ethernet interface DM9000A is connected with the NCS3 pin of RM9200, the RESET pin of Ethernet interface DM9000A is connected with the PA25 of RM9200, the INT pin of Ethernet interface DM9000A is connected with the PA23 of RM9200, and the CMD pin of Ethernet interface DM9000A is connected with the A2 pin of RM9200, also comprise dual port RAM, two-way CAN SJA1000Controler T, logic controller XC9536 and be positioned at dual port RAM, 16 BITBUS network transceivers between CAN SJA1000Controler T and RM9200, pin 1A1 to the 1A8 of 16 BITBUS network transceivers, 2A1 to 2A8 connects data pin D0 to the D15 of RM9200 respectively, pin 1B1 to the 1B8 of 16 BITBUS network transceiver ALVC16245, 2B1 to 2B8 connects data pin D0 to the D15 of dual port RAM respectively, wherein 1B1 connects D0, 1B2 connects D2, order 2B8 connects D15 according to this, CAN controller SJA1000T accesses 1B1 to the 1B8 of 16 BITBUS network transceivers successively by pin D0 to D7, dual port RAM right-hand member pin D0 to D7 is connected to LD0 to LD7 position corresponding to negative slot successively by bus interface, the bus interface of read-write operation is externally provided, the clock pins SCK of CAN SJA1000Controler T, data line MOSI with MISO is connected with the clock line SCK in RM9200 universal serial bus, data line MOSI with MISO respectively, pin TCK1, TDO1, TDI1 of RM9200 are connected with 10 with the pin one 1,24,9 of TMS1 difference andlogic control device XC9536, and pin DTREQ and DTREQ0 of logic controller XC9536 accesses the enable pin EN of 16 BITBUS network transceivers and the CANE pin of CAN controller respectively, also comprise X5045EEPROM storer, the RESET pin of X5045EEPROM storer connects 115 pins of RM9200 by RESET line, X5045EEPROM storer is connected by SPI universal serial bus with RM9200, and the clock line SCK that X5045EEPROM storer is corresponding with the SPI universal serial bus of RM9200, data line MOSI with MISO are of the same name, and pin is connected, also comprise 32M flash memory FLASH, 24 address pin A1 to A24 of 32M flash memory FLASH access 24 address pin A1 to A24 of RM9200 respectively, and 32M flash memory FLASH accesses 16 position datawire D0 to the D15 of RM9200 successively by 16 data pin D0 to D15, the pin one 66 of RM9200 connects the chip selection signal line CS of 32M flash memory FLASH, also comprise 128MSDRAM storer, 128M SDRAM storer accesses address bus A0 to the A25 of RM9200 respectively by 26 address wire A0 to A25,16 data line D0 to D15 of 128M SDRAM storer access 16 position datawire D0 to the D15 of RM9200 respectively, and the chip selection signal SDCS of 128M SDRAM storer accesses the chip selection signal line CS of RM9200, also comprise optical coupling isolator A, optical coupling isolator B and half-duplex differential transceiver, the pin TXD0 of RM9200, TXD0 and CTS0 is respectively by transmission signal line TXD, Received signal strength line RXD is connected with optical coupling isolator A and optical coupling isolator B respectively with enable signal line EN485, optical coupling isolator A is connected half-duplex differential transceiver with optical coupling isolator B respectively by transmission signal line and Received signal strength line, half-duplex differential transceiver accesses positive and negative signal wire 485+, the 485-of 485 communications by pin 485+ and 485-, two-way CAN SJA1000Controler T is upwards interconnected by the data line of data line and address wire and RM9200 and address wire, two-way CAN SJA1000Controler T is downwards all by pin CAN+, CAN-is connected respectively to optocoupler C and optocoupler D, two optocoupler C and optocoupler D are connected to CAN transceiver 82C250 respectively by TxD and RxD, the ground wire of two-way CAN transceiver 82C250 is respectively by the right-hand member ground of DC/DC isolated from power, isolation fieldbus controller ground wire and outside CAN ground wire, two-way CAN transceiver 82C250 directly accesses CAN+ and the CAN-difference mode signal of negative slot respectively by pin D0 and D1, be then connected to I/O module by CAN.

FCP01 is inserted into cabinet, and be connected to access level switch by Ethernet, a control station recommended configuration two pieces of FCP01, realize controller master-slave redundancy.FCP01 initially powers on to be needed to carry out initial configuration, according to designing the ethernet ip address of specifying, by engineer station's generating configuration file, the IP address of what configuration file was detailed give controller, pair time server etc. information, after engineer station's generating configuration file, by initial default IP address 192.168.0.49, configuration file is installed to FCP01 by under Ethernet; After lower dress configuration file completes, next need to restart FCP01, restart rear new configuration take-effective, the IP address of FCP01 will change over the IP address that new configuration file provides automatically.Active and standby FCP01 configures independently ethernet address, and the address of standby card generates on the basis of main card IP address, and such as, if main card address configuration is 192.168.1.2, so standby card IP address is just 192.168.1.52.Soft reboot and hardware RESET key can be adopted to restart to restarting of FCP01, each ethernet address changing FCP01 all needs to restart and just can come into force.

Set up control system as shown in Figure 2, control system comprises following components: operator station, engineer station, FCP01, FPB01, I/O module, DB37 cable, terminal strip, from the field apparatus and instrument etc. of each manufacturer.Operator station sets up TCP with UDP by Ethernet with FCP01 with engineer station and is connected, and can be completed the lower dress of configuration info by Ethernet engineer station, mutual for FCP01 such as the transmission of online order; Engineering staff engineer station according to field apparatus and various control overflow building database, control the information such as configuration, compiled by engineer station's host computer procedure, generate database file, FCP01 is installed under controlling configuration file, FCP01 resolves database file and control configuration file, performs the startup of initial configuration and processor active task; Comprise reading and the configuration of fastener information, the foundation of the data structure of I/O point and address assignment, the configuration of execution cycle, the startup of processor active task, the broadcast of invocation point between standing.

FCP01 provides CAN interface, can freely by CAN access I/O module, and I/O module can configure AI, AO, DI, DO and fieldbus module FPB01.FCP01 is communicated with I/O module by CAN, and traffic rate is high, and message structure is flexible.FCP01 can provide 5 extended housings, and each cabinet can insert 12 pieces of fasteners.I/O module is connected to the terminal strip of corresponding module by DB37 pre-fabricated electric cables, and terminal strip directly accesses the measuring-signal of field apparatus by hardwire.For PROFIBUS FPB01 module, without the need to incoming end daughter board, only need directly to access DP cable from backboard, then DP equipment is directly accessed DP cable.For DP device parameter, configuration and the fractionation of the information of point are completed by communication main station FPB01.

Electric power system, FCP01 is powered and have been come by base plate, + 5VIN power supply is provided to the power unit of FCP01 by external dc power, simultaneously through the conversion of power unit ,+3.3 for RM9200, FLASH, SDRAM, BUFFER logic controller XC9536, dual port RAM and Ethernet physical interface chip; + 1.8 kernel portion being mainly used in RM9200, object reduces power consumption.

Engineer station is according to the designing requirement of control system, and point is shown, building database, the foundation of configuration info is carried out by database, after completing configuration work, by engineer station by these data by installing to mounting under Ethernet over ethernet, there is the controller of explicit ip address.FCP01 is after receiving these database con-figuration and SAMA configuration info, these information are resolved, first I/O point data base is set up, module configuration information, then SAMA configuration info is read and resolved, SAMA configuration info is consistent with database con-figuration, is all first be insertion portion, deletion and adding portion.Then control need need to be configured according to the module of database con-figuration to access FCP01CAN bus interface, comprise the broadcast data cycle of module, the groove number of module, call number etc.The terminal strip that the access of I/O module is corresponding, then I/O module directly accesses control signal and the diagnostic signal of field apparatus by hardwire.

Claims (5)

1. a fieldbus controller, it is characterized in that: two the Redundant Ethernet interface DM9000A externally provided are provided, the RM9200 be connected by BDB Bi-directional Data Bus with Ethernet interface DM9000A, data pin SD0 to the SD15 of Ethernet interface DM9000A is connected with data pin D0 to the D15 of RM9200 respectively, wherein SD0 connects D0, SD1 connects D1, the like, SD15 connects D15; The CS# pin of Ethernet interface DM9000A is connected with the NCS3 pin of RM9200, the RESET pin of Ethernet interface DM9000A is connected with the PA25 of RM9200, the INT pin of Ethernet interface DM9000A is connected with the PA23 of RM9200, and the CMD pin of Ethernet interface DM9000A is connected with the A2 pin of RM9200;

Also comprise dual port RAM, two-way CAN SJA1000Controler T, logic controller XC9536 and be positioned at dual port RAM, 16 BITBUS network transceivers between CAN SJA1000Controler T and RM9200, pin 1A1 to the 1A8 of 16 BITBUS network transceivers, 2A1 to 2A8 connects data pin D0 to the D15 of RM9200 respectively, pin 1B1 to the 1B8 of 16 BITBUS network transceivers, 2B1 to 2B8 connects data pin D0 to the D15 of dual port RAM respectively, wherein 1B1 connects D0, 1B2 connects D2, order 2B8 connects D15 according to this, CAN controller SJA1000T accesses 1B1 to the 1B8 of 16 BITBUS network transceivers successively by pin D0 to D7, dual port RAM right-hand member pin D0 to D7 is connected to LD0 to LD7 position corresponding to negative slot successively by bus interface, the bus interface of read-write operation is externally provided, the clock pins SCK of CAN SJA1000Controler T, data line MOSI with MISO is connected with the clock line SCK in RM9200 universal serial bus, data line MOSI with MISO respectively, pin TCK1, TDO1, TDI1 of RM9200 are connected with 10 with the pin one 1,24,9 of TMS1 difference andlogic control device XC9536, and pin DTREQ and DTREQ0 of logic controller XC9536 accesses the enable pin EN of 16 BITBUS network transceivers and the CANE pin of CAN controller respectively,

Also comprise X5045EEPROM storer, the RESET pin of X5045EEPROM storer connects 115 pins of RM9200 by RESET line, X5045EEPROM storer is connected by SPI universal serial bus with RM9200, and the clock line SCK that X5045EEPROM storer is corresponding with the SPI universal serial bus of RM9200, data line MOSI with MISO are of the same name, and pin is connected;

Also comprise 32M flash memory FLASH, 24 address pin A1 to A24 of 32M flash memory FLASH access address pin A1 to the A24 of RM9200 respectively, and 32M flash memory FLASH accesses 16 position datawire D0 to the D15 of RM9200 successively by 16 data pin D0 to D15, the pin one 66 of RM9200 connects the chip selection signal line CS of 32M flash memory FLASH;

Also comprise 128M SDRAM storer, 128M SDRAM storer accesses address bus A0 to the A25 of RM9200 respectively by 26 address wire A0 to A25,16 data line D0 to D15 of 128M SDRAM storer access data line D0 to the D15 of RM9200 respectively, and the chip selection signal SDCS of 128M SDRAM storer accesses the chip selection signal line CS of RM9200;

Also comprise optical coupling isolator A, optical coupling isolator B and half-duplex differential transceiver, the pin TXD0 of RM9200, TXD0 and CTS0 is respectively by transmission signal line TXD, Received signal strength line RXD is connected with optical coupling isolator A and optical coupling isolator B respectively with enable signal line EN485, optical coupling isolator A is connected half-duplex differential transceiver with optical coupling isolator B respectively by transmission signal line and Received signal strength line, half-duplex differential transceiver accesses positive and negative signal wire 485+, the 485-of 485 communications by pin 485+ and 485-;

Two-way CAN SJA1000Controler T is upwards interconnected by the data line of data line and address wire and RM9200 and address wire; Two-way CAN SJA1000Controler T is downwards all by pin CAN+, CAN-is connected respectively to optocoupler C and optocoupler D, optocoupler C and optocoupler D is connected to CAN transceiver 82C250 respectively by TxD and RxD, the ground wire of two-way CAN transceiver 82C250 is respectively by the right-hand member ground of DC/DC isolated from power, isolation fieldbus controller ground wire and outside CAN ground wire, two-way CAN transceiver 82C250 directly accesses CAN+ and the CAN-difference mode signal of negative slot respectively by pin D0 and D1, be then connected to I/O module by CAN.

2. a kind of fieldbus controller according to claim 1, it is characterized in that: adopt 5V system power supply to power, the power supply of CAN transceiver 82C250, optical coupling isolator A and optical coupling isolator B provides 5V direct current supply by DC/DC isolated from power, CAN isolated from power left end ground wire GND, right-hand member meets CAN ground wire CGND, 485 communication power supplies isolation left ends meet 485 communicatively 485GND1, and right-hand member meets fieldbus controller ground wire GND.

3. a kind of fieldbus controller according to claim 1, is characterized in that: described 32M flash memory FLASH adopt two panels and mode, monolithic capacity is 16M × 16, forms 32M memory capacity.

4. a kind of fieldbus controller according to claim 1, is characterized in that: described 128M SDRAM storer adopt two panels and mode, monolithic capacity is 32M × 16, forms the storage space of 128M × 8.

5. a kind of fieldbus controller according to claim 1, it is characterized in that: described fieldbus controller represents module running status by red/green LED light on panel, pilot lamp comprises 8 altogether, the name of each pilot lamp is called operation/trouble light, master/slave lamp, network interface 1 state, network interface 2 state, controller failure status lamp 4; Wherein operation/trouble light has red and green two kinds of colors, red expression operation exception, green expression is normal, and the expression of master/slave lamp green is main card, yellow expression is standby card, and whether network interface 1 state and network interface 2 state are in connection status by flicker expression two network interfaces; These 4 status lamps of controller failure status lamp give 15 kinds of duties of controller according to 8421 codings from top to bottom, comprising: FLASH fault, SDRAM fault, dual port RAM fault, CAN1 fault, CAN2 fault, network interface A fault, network interface B fault, network interface A work, network interface B work, I/O type mismatch, I/O communication overtime, GPS Synchronization timeout, FTP connection failure, without configuration file and reservation position.