Ding real PB - B - RS232 total line bridge for electric operation - mechanical assembly line to start function

in the field of application, and sometimes need to take with a serial port ( Free agreement, MODBUS, CAN, CANOpen, DeviceNet, etc. ) Equipment connected to PROFIBUS bus network, such as frequency converter, scanner, PLC and so on. The case for a domestic electrical equipment factory electric starting mechanical assembly line.

1, control system hardware select

in the electric starter mechanical assembly line, use electric tightening machine and scanning gun, they all with RS232 serial port, need to transmit the data to a 300 - Siemens PLC 2 dp, all need from RS232 to PROFIBUS conversion equipment, ding real PB - B - RS232 total line bridge provides this functionality.

2, general control requirements and function

on the assembly line, Siemens PLC need parameters such as torque, torque of electric screw machine set, other equipment coding by scanning gun, also need to monitor PLC, realize to the whole assembly line operation.

( 1) Normal communication after 4 electric tightening machine parameters such as torque and rotational speed of the back after the PLC controller, PLC carries on the real-time calibration, and then after the calibration parameters into electric tightening machine again. Operators can monitor real-time state of electric screw machine.

( 2) By scanning gun, the assembly line after the normal operation of the equipment parameters of the assembly line equipment in real time back to the PLC, and then to the PC for display in surface, the equipment parameters recorded in the database to spare.

3, system structure and its layout

the master station for Siemens 315 - in the system 2 dp PLC, from standing besides ET200, other for the total line bridge PB - 5 ding B - RS232, its external electric tightening machine 4 and 1 respectively scanning guns.

simple explain total line bridge PB - here B - Some parameters of the RS232 for reference:

( 1) Standard PROFIBUS - DP driver interface, baud rate adaptive, maximum baud rate 12 m;

( 2) PROFIBUS number of Input/Output can be set freely, the maximum Input/Output: '1' Input Bytes + Output Bytes 232 Bytes or less; 《2》最大输入字节≤224字节; 《3》最大输出字节≤224字节;

( 3) Standard RS232 interface / 485, half duplex; Character format: the seven/eight optional, check digit ( Accidentally, strange, no) Optional; Baud rate: 300, 600, 1200, 2400, 4800, 9600, 19. 2K、38. 4 k, 57。 6 k optional; RS232/485 master/slave device is optional;

( 4) Standard RS232 interface / 485, half duplex; Character format: the seven/eight optional, check digit ( Accidentally, strange, no) Optional; Baud rate: 300, 600, 1200, 2400, 4800, 9600, 19. 2K、38. 4 k, 57。 6 k optional;

4, system software

( 1) Computer operating system using Microsoft Windows XP Professional Chinese version of the operating system. PC monitor software adopts WinCC6. Zero configuration software to achieve.

( 2) By Siemens STEP7 configure hardware configuration of the configuration software.

5, last word

this case, provide us with a RS232 to PROFIBUS bus communication solutions. Whoever has the RS232/485 interface, user can get the interface communication protocol of field devices, this product can be used to realize the scene equipment and interconnection of the PROFIBUS master station. PB- B - RS232 is universal communication products, which can realize PROFIBUS communication between master station and equipment of the transparent transmission of a message.

editor: gt

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