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PB-B-RS485 serial bus bridge
On the PROFIBUS side of the bus bridge is the PROFIBUS slave station; The other side interface is suitable for free protocol based on RS485 serial por
Product details
On the PROFIBUS side of the bus bridge is the PROFIBUS slave station; The other side interface is suitable for free protocol based on RS485 serial port. The serial port free protocol is implemented through PLC/DCS programming in the main station. This product provides a flexible and convenient solution for various protocol serial devices in the field of industrial automation to connect to the PROFIBUS bus, meeting the networking requirements for serial devices (such as power measurement and protection instruments, frequency converters, servo systems, electronic scales, barcode readers, analytical instruments, sensors, small PLCs, etc.) to connect to Siemens and ABB control systems (such as Siemens S7-300, -400 PLC systems, ABB's 800F system, etc.)
lstandardPROFIBUS-DPSlave interface, compliantIEC61158 TYPE3 PROFIBUSInternational standards, Chinese national standardsGB/T 20540-2006；
lCompatible with mainstreamPROFIBUSmaster device,in compliance withSiemens 300/400 PLC 、Beckhoff-dpMain stationABB 800FOmron Main Station, HollysysLK PLCHarmony TimeDCS；
lBaud rate adaptive9600～12Mbps；
lThere are options for timed automatic sending and triggered sending, simplifying protocol programming control;
lprovideRS232、RS485、RS422Rich interface options to choose from,Complete terminal resistor matching function;
lWorking temperature:-20℃～+55℃； Relative humidity at work:5～95%(No condensation)；
lWide voltage power supply24VDC±20%、35mmGuide rail card installation, providing intuitive and effective indicator light function;
lProvide productsGSDThe file is used for network integration; Flexible implementation of free protocol communication with the same serial port through main station configuration and programming;
lThe serial port baud rate can be selected through the main station configuration(9600～57.6Kbps), check digit(N、O、E)Stop position(1/2、1、2)；
lThe status word of the bus bridge can comprehensively reflect the communication status of the bus bridge and the communication status of the serial port, and the control word can flexibly control the sending and receiving logic.
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PB-B-RS485 |
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PROFIBUS parameters |
standard |
conform toIEC61158 TYPE3 PROFIBUSInternational standards, Chinese national standardsGB/T 20540-2006. |
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speed |
Baud rate adaptive, 9600~12Mbps |
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Data volume |
PROFIBUS input/output quantity can be freely set, maximum input/output: <1> Input Bytes + Output Bytes ≤ 232 Bytes；
<3> Max Output Bytes ≤224 Bytes； 3>2>1> |
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Serial port parameters |
physical interface |
RS485 (half duplex) |
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character format |
Data bits: 7, 8; |
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Parity: odd, even, none |
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Address/data labeling; |
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Stop position: 1, 2 (configurable) |
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Working mode |
Master/Slave (software settings) |
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Operational characteristics |
characteristic |
The data flow on the serial port is controllable, providing 'trigger and automatic' sending modes and 'receive by length' modes, with flexible programming Having 'control word and status word' settings, the device's status can be controlled in real-time to meet specific user needs |
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collocation method |
All communication parameters on the serial port end are set through GSD files, without the need for additional software to configure and download them separately, reducing operational steps, facilitating spare parts replacement, and reducing maintenance costs |
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Electrical parameters |
power consumption |
Power supply: 24VDC (± 20%), current: 110mA (at 24VDC) |
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authentication |
CE certification,PROFIBUS certification |
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work environment |
Working temperature: -20 ℃ to+55 ℃; (For customers with lower temperature requirements, please declare when purchasing) Transportation and storage: -40 ℃ to+70 ℃; Relative humidity at work: 5~95% (no condensation) |
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install |
Method: 35mm guide rail; Protection level: IP20； |
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Dimension |
Dimensions: Width (70mm) x Length (112.5mm) x Thickness (39.5mm); Weight: Approximately 230g |
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Product Features |
Application scenarios |
Based on RS232/485/422 serial port free protocol device accessPROFIBUSThe internet, becomingPROFIBUSThe slave station of the main station system |
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Easy to use |
Especially suitable for system integration engineers, relying on bus bridge GSD files and master station configuration software (such as STEP7), communication integration from multiple serial port free protocol devices to PROFIBUS master station can be achieved without PLC/DCS programming |
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FEATURES |
Memory sharing type, improving data exchange speed |
Appearance and device layout of serial bus bridge products
Outline dimensions and installation of PROFIBUS bus bridge
Industry Applications
Petroleum and Petrochemicals: Lanzhou Petrochemical, Tianjin Daiethylene
Rail Transit: Nanjing Metro
Energy saving and emission reduction: Kuangou Guesthouse, Olympic venues
Steel production: Shougang, Baosteel, Ansteel
Automotive industry: Changchun FAW, Huachen BMW
Equipment matching: Depay automobiles, military equipment
Products case
keyword:Weighing system, PROFIBUS bus bridge
Project Name: Application of Shougang Weighing System
Using the product: PB-B-RS232
Connecting products: The main station uses Siemens 400 PLC and is connected to the EDI-800A weighing controller on site.
Implementation function: Timely feedback the weight data during the dephosphorization and decarbonization process of the steel plant to the main station S7-400 PLC.
Effect analysis: This project provides a solution for numerous steel mills to connect to the PROFIBUS system. Any weighing instrument, scale, etc. with RS232 interface can be connected to the PROFIBUS system through Beijing Dingshi's PB-B series bus bridge.
keyword: Engine assembly line, barcode scanning, PROFIBUS bus bridge
Project Name: Application in Automotive Engine Assembly Line
Using the product: PB-B-RS232/485
Connecting products: The main station is Siemens 319-3PN/DP PLC, which is connected to the scanning gun on site.
Effect analysis: The scanning results of all components in the project are converted from serial protocol to PROFIBUS protocol by PB-B-RS232485 bus bridge, and connected to PB-B-RS232485 bus bridge through PROFIBUS bus by PLC to read the scanning results. The advantage of this is that the module installation is convenient, not limited by PLC control cabinet, shortening the distance of serial cable and reducing the failure rate. In the past, the exchange of information between the scanning gun and the PLC was always a tedious task. Generally, it required connecting the serial port cable to the PLC control cabinet, and then reading the information from the scanning gun through Siemens' RS232 serial port module. However, due to the complexity and variety of engine components that need to be scanned, the scanning station is often spread throughout the entire engine assembly line. Some stations are far away from the main control PLC control cabinet, but the serial port cable is too far away and the transmission stability is not high. This led engineers to think of using protocol conversion to complete data transmission. The PB-B-RS232485 bus bridge connection is simple and convenient, and can be connected to a 24V power supply, DP cable, and scanning gun cable. The PB-B-RS232485 bus bridge does not need to install drivers like the Siemens RS232 serial port module. After the hardware is configured, call FB2 to read the serial port data, and FB3 to write the serial port data. It only needs to set the number of bytes accepted after the hardware is configured, and the control word can be continuously received at position 1 of the 6th position. The configuration is simple and the debugging is convenient.
keyword: Motor assembly line, PROFIBUS bus bridge
Project Name:Application of Petrai Motor Assembly Line
Using the product:PB-B-RS232
Connecting products:The main station uses Siemens PLC 300-2DP, which is connected to the tightening machine and scanning gun on the electric starting mechanical assembly line on site.
Implementation function:After normal communication, the torque, speed and other parameters of the electric tightening machine are transmitted back to the PLC, which performs real-time calibration and then rewrites the calibrated parameters into the electric tightening machine. Operators can monitor the status of the electric tightening machine in real-time. The scanning gun transmits the equipment parameters of the equipment on the assembly line in real time to the PLC, and then transmits them to the upper computer for display in the face changing system. The equipment parameters are recorded in the database for backup.
Effect analysis:This case provides us with a solution for communication from RS232 to PROFIBUS bus. Any field device with RS232/485 interface and user access to interface communication protocol can use this product to achieve interconnection between the field device and PROFIBUS master station. PB-B-RS232 is a universal communication product that enables transparent transmission of communication messages between PROFIBUS master stations and devices.
keyword: Textile, spinning machine, PROFIBUS bus bridge
Project Name:Application of Textile Machinery System
Using the product:PB-B-RS485
Connecting products:The main station is SIEMENSE S7400 PLC, and the on-site communication interface is connected to various spinning machine small PLCs, such as Mitsubishi, Delta, and Toyo
Implementation function:After normal communication, the torque, speed and other parameters of the electric tightening machine are transmitted back to the PLC, which performs real-time calibration and then rewrites the calibrated parameters into the electric tightening machine. Operators can monitor the status of the electric tightening machine in real-time. The scanning gun transmits the equipment parameters of the equipment on the assembly line in real time to the PLC, and then transmits them to the upper computer for display in the face changing system. The equipment parameters are recorded in the database for backup.
Effect analysis:Since its operation, the communication between the PLC and various spinning machines has been normal, without any software or hardware failures or other interference phenomena, effectively ensuring the normal operation of the automatic control system. The communication between PLC and third-party free protocol through PB-B-RS232/485 bus bridge is an effective method.
PB-B-RS485 GSD file
PB-B-RS485 serial port debugging software
CP5611+WinCC connection PB-B-RS485 bus bridge routine
PB-B-RS485 Application Manual
PB-B-RS485 Product Manual
S7-300 step routine
PB-B-RS232485-V3x Introduction to Different Versions
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