CN202043143U

CN202043143U - EtherCAT high-dense digital IO (input/output) interface module

Info

Publication number: CN202043143U
Application number: CN2011201513321U
Authority: CN
Inventors: 李寅; 章明众
Original assignee: Edina Control Technology (xiamen) Co Ltd
Current assignee: Edina Control Technology (xiamen) Co Ltd
Priority date: 2011-05-11
Filing date: 2011-05-11
Publication date: 2011-11-16
Anticipated expiration: 2021-05-11

Abstract

The utility model discloses an EtherCAT high-dense digital IO (input/output) interface module, which comprises a frame body, wherein an integrated circuit board of an IO interface is embedded inside the frame body; the integrated circuit board comprises an ESC (escape) chip, a first network interface, a second network interface, a digital IO input interface, a digital IO output interface, a photoelectric triode, a photoelectric coupler, a circuit board power source and an external power input port; the first network interface and the second network interface are respectively connected with the ESC chip; the photoelectric triode and the photoelectric coupler are respectively connected with the ESC chip; and the digital IO input interface, the digital IO output interface, the circuit board power source and the external power input port are all arranged on the integrated circuit board and are all connected with the ESC chip. The high-dense digital IO interface module has the advantages that the structure is simple, the cost is low, the I/O points are highly dense, and the wire connection is simple.

Description

The highly dense digital I interface module of a kind of EtherCAT

Technical field

The utility model relates to EtherCAT Industrial Ethernet bussing technique and digital input-output equipment field, refers more particularly to the highly dense digital I interface module of a kind of EtherCAT.

Background technology

Present Industrial Ethernet field bus technique has obtained popularizing day by day and promoting as the integrated package of Industry Control, and this is more widely used the control system based on PC.Though particularly IPC (Industry PC) property development is swift and violent for controller CPU, but because the medium access mode that the traditional ethernet field bus technique is adopted---have the Carrier Sense Multiple Access mechanism CSMA/CD of collision detection, it is a kind of media access control mode of uncertainty, in intermittent transmission, sudden long message and few at the node number, under the light situation of load, transmission has good efficient, but increase at the node number, data traffic increases, under the situation that load increases the weight of, its efficient obviously descends, and this also becomes one of restriction control system property development " bottleneck ".At this situation, develop multiple new Industrial Ethernet field bus technique both at home and abroad, wherein comparatively ripe and having of being used widely: EtherCAT, SERCOSIII, POWERLINK, Ethernet/IP, Modbus/TCP, PROFINET.Wherein EtherCAT (Ethernet for Control Automation Technology) advocates " Ethernet control automatic technology ", propose in 2003 by German BECKHOFF Automation Co., Ltd, and become international standard in December, 2007, be the 12 kind of communication protocol standard that defines among IEC61158 and the IEC61784.It is a real-time and opening Ethernet communications protocol, adopt the integrated ethernet controller of commercial standard network interface card (NIC) or any mainboard as hardware interface, for new standard is set up in the real-time performance and the topological flexibility of system, reduced the use cost of fieldbus, effective data rate can reach more than 90%, transmission rate: 2 * 100Mbaud, the full duplex characteristic is used fully, it is the real-time ethernet of through I/O layer, need not hang subsystem down, all devices coexists as on the same bus.The master-slave mode pattern is adopted in EtherCAT medium access (MAC), and main website realizes communication function by software fully, has adopted the software nuclear of Real-Time Scheduling in data link layer, and the autonomous channel of process data transmission is provided, and slave station adopts proprietary hardware chip.EtherCAT is as industrial automation Ethernet solution, with its ultrahigh speed, general, open, the low-cost favor that realizes having obtained vast industry control manufacturer, there have been a plurality of producers to develop oneself main website product and slave station chip in the world, the exploitation of the domestic product development that also has many families to begin to put forth effort on this technology, particularly slave station.

Digital quantity IO control is control mode the most general in the Industry Control, can be used as one of slave station of EtherCAT bus, the IO module product of the support EtherCAT of existing maturation is less in the market, and that wiring dispersion, integrated level are lower, IO counts is less, cost an arm and a leg, delivery date is long, has seriously hindered medium and low-end users EtherCAT solution and has implemented.

The utility model content

The purpose of this utility model is in order to overcome above-mentioned defective, provide that a kind of IO simple in structure, cheap, highly dense counts, wiring simple, the highly dense digital I interface module of EtherCAT.

The utility model is realized in the following way:

The highly dense digital I interface module of a kind of EtherCAT is characterized in that: comprise support body 2, be embedded with the surface-mounted integrated circuit 1 based on the IO interface of EtherCAT bussing technique in described support body 2 inside;

Described surface-mounted integrated circuit 1 comprises ESC chip 15, first network interface 11, second network interface 12, digital I input interface 18, digital I output interface 111, phototriode 110, photoelectrical coupler 19, circuit board power supply 17, the external power source input port 16 based on the EtherCAT technology;

Described first network interface 11 is connected with ESC chip 15 based on the EtherCAT technology by the first network interface control chip 13, and second network interface 12 is connected with ESC chip 15 based on the EtherCAT technology by the second network interface control chip 14; Phototriode 110, photoelectrical coupler 19 are connected with ESC chip 15 based on the EtherCAT technology respectively;

Described digital I input interface 18, digital I output interface 111, circuit board power supply 17, external power source input port 16 are located on the surface-mounted integrated circuit 1, and circuit board power supply 17, external power source input port 16, digital I input interface 18, digital I output interface 111, circuit board power supply 17, external power source input port 16 all are connected with ESC chip 15 based on the EtherCAT technology.

Described digital I input interface 18 has 32 inputs, and wherein low sixteen bit is a shared common port, and high sixteen bit is a shared common port; Common port can be positive pole according to actual needs and also can be negative pole.

Described digital I output interface 111 has 32 outputs separately, and wherein low sixteen bit is a shared common port, and high sixteen bit is a shared common port, and common port can be positive pole according to actual needs and also can be negative pole.

The input of described digital I meets A1 on 18, A2 pin short circuit and links to each other with negative pole, and B1, B2 pin short circuit also link to each other with positive pole.

The output of described digital I meets A1 on 111, A2 pin short circuit and links to each other with negative pole, and B1, B2 pin short circuit also link to each other with positive pole.

The utility model comprises preferred circuit plate fixed installation module support body, is embedded with based on EtherCAT bussing technique communication function on the module support body and has the IO control integrated circuit plate of 40 pin ox horn head interfaces; Owing to use the preferred circuit plate module frame is installed, and adopt ET1100 distribution time sheet to control the method for 64 bit digital IO, needn't use the slave station application chip, cost of Jiang Diing, and 40 pin ox horn head input/output interfaces greatly and signal allocation thereof can well and have related electric module compatibility now on the market.

The utility model advantage is for being, well utilized existing electrical module on the market, for the user provides a kind of wiring simple, simple structure, cheap, interface standard, IO counts intensive, compatible good EtherCAT digital quantity IO slave station is specially adapted to support in the digital control system of EtherCAT.

Description of drawings

Fig. 1 the utility model structural representation;

The highly dense digital I numeral of Fig. 2 the utility model EtherCAT input and output stitch signal allocation figure;

The winding diagram of Fig. 3 the utility model embodiment.

Embodiment

The utility model specific embodiment now is described in detail in detail in conjunction with the accompanying drawings:

As shown in Figure 1 and Figure 2, the highly dense digital I interface module of a kind of EtherCAT is characterized in that: comprise support body 2, be embedded with the surface-mounted integrated circuit 1 based on the IO interface of EtherCAT bussing technique in described support body 2 inside;

A1 on the described digital I input interface 18, A2 pin short circuit also link to each other with negative pole, and B1, B2 pin short circuit also link to each other with positive pole.

A1 on the described digital I output interface 111, A2 pin short circuit also link to each other with negative pole, and B1, B2 pin short circuit also link to each other with positive pole.

As shown in Figure 3, the utility model provides a kind of EtherCAT highly dense digital I interface module, is embedded with the surface-mounted integrated circuit 1 based on the IO interface of EtherCAT bussing technique in described support body 2 inside, and both mate mutually.First network interface 11 is connected with the digital control system 3 of EtherCAT in addition, digital I input interface 18 is connected with deconcentrator module 4, digital I output interface 111 is connected with relay module 7, and second network interface 12 is used to connect next EtherCAT slave station.

Wherein, in the above-described embodiments, link to each other by straight through cable 8 with the digital control system 3 of EtherCAT based on first network interface 11 on the IO control integrated circuit plate 1 of EtherCAT bussing technique communication function interface; Being connected with deconcentrator module 4 based on the digital I input interface 18 on the IO control integrated circuit plate 1 of EtherCAT bussing technique communication function interface links to each other by faller gill line 5, and the input that is used for the user connects; Link to each other by faller gill line 6 with relay module 7 based on the digital I output interface 111 on the IO control integrated circuit plate 1 of EtherCAT bussing technique communication function interface, be used for user's relay output switch control.This embodiment has well utilized existing electrical module on the market, for the user provides a kind of wiring simple, simple structure, cheap, interface standard, IO counts intensive, and compatible good EtherCAT digital quantity IO slave station is specially adapted to support in the digital control system of EtherCAT.

Working method: after the energising of external power source input port 16, circuit board power supply 17 obtains operating voltages, and provides operating voltage for each chip on the surface-mounted integrated circuit.Digital control system is discerned this module according to the device description file of the highly dense digital I interface module of EtherCAT and is sent the initialization data frame and sets up the network service connection, and keeps periodic data transmission in real time.For digital quantity input, the EtherCAT Frame is handled and inserted to the input state of corresponding points on the photoelectrical coupler 19 response input deconcentrator modules in should the message of module by ESC chip 15, is transferred to the digital control system main website at last; Export for digital quantity, the digital control system main website sends the EtherCAT Frame that comprises control output end information, when Frame arrives this module, the ESC slave station chip of this module reads the corresponding message information of this module and handles, control corresponding phototriode 110 work, the then break-makes of corresponding relay on the control relay module.

Claims

1. the highly dense digital I interface module of EtherCAT is characterized in that: comprise support body (2), be embedded with the surface-mounted integrated circuit (1) based on the IO interface of EtherCAT bussing technique in described support body (2) inside;

Described surface-mounted integrated circuit (1) comprises that ESC chip (15), first network interface (11), second network interface (12), digital I input interface (18), the digital I output based on the EtherCAT technology connects (111), phototriode (110), photoelectrical coupler (19), circuit board power supply (17), external power source input port (16);

Described first network interface (11) is connected with ESC chip (15) based on the EtherCAT technology by the first network interface control chip (13), and second network interface (12) is connected with ESC chip (15) based on the EtherCAT technology by the second network interface control chip (14); Phototriode (110), photoelectrical coupler (19) are connected with ESC chip (15) based on the EtherCAT technology respectively;

The output of described digital I input interface (18), digital I connects (111), circuit board power supply (17), external power source input port (16) are located on the surface-mounted integrated circuit (1), and circuit board power supply (17), external power source input port (16), digital I input interface (18), digital I output connect (111), circuit board power supply (17), external power source input port (16) and all is connected with ESC chip (15) based on the EtherCAT technology.

2. the highly dense digital I interface module of a kind of EtherCAT according to claim 1, it is characterized in that: described digital I input interface (18) has 32 inputs, wherein low sixteen bit is a shared common port, and high sixteen bit is a shared common port; Common port can be positive pole according to actual needs and also can be negative pole.

3. the highly dense digital I interface module of a kind of EtherCAT according to claim 1, it is characterized in that: described digital I output interface (111) has 32 outputs separately, wherein low sixteen bit is a shared common port, high sixteen bit is a shared common port, and common port can be positive pole according to actual needs and also can be negative pole.

4. the highly dense digital I interface module of a kind of EtherCAT according to claim 1 is characterized in that: the A1 on the described digital I input interface (18), A2 pin short circuit also link to each other with negative pole, and B1, B2 pin short circuit also link to each other with positive pole.

5. the highly dense digital I interface module of a kind of EtherCAT according to claim 1 is characterized in that: the A1 on the described digital I output interface (111), A2 pin short circuit also link to each other with negative pole, and B1, B2 pin short circuit also link to each other with positive pole.