Description
hardware flow control. It is an ideal choice in the field of industrial automation.
(1) Use STEP7V5.2 configuration software and enter Hardware Configure to complete S7-300 PLC hardware configuration;
(2) Select S7-315-2DP as the main station system, import the GSD (device database) file of NPBA-12 into the STEP7 programming environment, and configure the software
to configure NPBA-12 with S7-315-2DP as the main station. DP online, and select the PPO type to use. This design uses PPO4 to set the site network address. In the Profibus
structure of the variable frequency drive device, ABB frequency converters use the Profibus-DP communication module (NPBA-12) for data transmission, which is
mainly periodic: the host reads the input information from the slave station and sends the output information back to the slave station. ,
so it is necessary to call two system function blocks SFC14 and SFC15 in the PLC main program to read and write these data to achieve communication control to
the frequency converter;
(3) Create a data block in the main PLC program for data communication with the frequency converter; establish a variable table for observing the real-time
communication effect.
4 Inverter operation settings
After the frequency converter and PLC are connected to a network using Profibus-DP fieldbus, in addition to programming in the PLC automation system,
appropriate parameter settings must also be performed on each frequency converter.
After the communication cable is connected, start the inverter and complete the setting of the inverter communication parameters.
4.1 Basic settings
(1) 51.01—Module type, this parameter displays the module model detected by the transmission device. Its parameter value cannot be adjusted by the
user. If this parameter is not defined, communication between the module and the drive cannot be established.
(2) 51.02—This parameter selects the communication protocol, “0” selects the Profibus-DP communication protocol.
(3) 51.03—This parameter is Profibu
The PPO type selected by s connection, “3” is PPO4, but the PPO type on the inverter should be consistent with the PPO type configured on the PLC.
(4) 51.04—This parameter is used to define the device address number, that is, the site address of the frequency converter. Each device on the Profibus
connection must have a separate address. In this design, the two frequency converters are stations 2 and 3 respectively. [1]
4.2 Connection of process parameters
The process parameter interconnection completes the definition and connection of the corresponding parameters of the NPBA-12 dual-port RAM
connector and the frequency converter, including the connection from the master station (PLC) to the frequency converter and the connection from the frequency
converter to the master station (PLC). Set the following connection parameters on the frequency converter.
(1) PZD value sent from PLC to transmission inverter
PZD1—control word, such as start enable, stop, emergency stop and other control commands of the frequency converter;
PZD2—frequency setting value of the inverter.
(2) PZD value sent from the transmission inverter to the PLC
PZD1—status word, such as alarm, fault and other inverter operating status;
PZD2—actual speed value, current actual value, etc. of the frequency converter.
5 Conclusion
After the inverter control system adopts the Profibus-DP fieldbus control mode, the entire system not only has strong reliability and is easy to operate, but also can
be flexibly modified according to process needs. After this system was applied in Jigang Baode Color Plate Co., Ltd., it has been running well and has provided a successful
example for the future automation equipment (network communication of different manufacturers) of the head office.
New technology from Swiss ABB Group: Complete car charging in 15 seconds
This technology can charge a car in 15 seconds
The Swiss ABB Group has developed a new electric bus technology that can complete vehicle charging in 15 seconds . No other company”s battery technology can achieve this performance.
ABB has developed a technology called “Flash Charging” that allows an electric bus with 135 passengers to charge at charging points along the route. The charging point has a
charging power of 400 kilowatts and is located above the vehicle. The charging point is connected to a moving arm controlled by a laser and can charge the car battery in 15 seconds. Its
minimal design will help protect the urban environment and surrounding landscape.
The idea behind this design is to give the electric bus enough power to travel to the next charging station after one charge. The end of the line will allow for long periods of full charging
, with the car able to travel longer distances on a full charge. In addition to faster charging times, the system uses a carbon-emission-free solution called
TOSA to obtain electricity from clean hydroelectric power stations.
ABB initially plans to use this technology between Geneva Airport and the Palexpo International Convention and Exhibition Center. If the test is successful
, it will be deployed to public transportation systems. This is more cost effective and environmentally friendly.
ABB Executive Chief Technology Officer Claes Rytoft said: “With flash charging, we can trial a new generation of electric buses for large-scale transportation
in cities. This project will provide greater flexibility, cost-effectiveness and flexibility.” Paving the way for a lower public transport system while reducing pollution and noise.”
https://www.xmamazon.com
https://www.xmamazon.com
https://www.plcdcs.com/
www.module-plc.com/
https://www.ymgk.com
IC697CPU781 GE Scalable CPU
IC697CPU781 GE Programmable Logic Controller CPU
IC697CPU782 GE PLC Module
IC697CPX772 GE CPU control function
IC697CPU789 GE triple redundant cpu
IC697CPU788 GE Scalable CPU
IC697CPU782 GE PLC
IC697CPU781 GE Programmable Logic Controller CPU
IC697CPU780 GE Single-slot PLC CPU
IC697CPU772 GE 12 MHz, 32 KB CPU
IC697CPU771 GE Programmable Logic Controller CPU
IC697CPU731 GE 12 MHz, 32 KB CPU
IC697CPM925 GE 1-slot CPU module
IC697CPM914 GE Redundant CPU module
IC697CPM790 GE 64 MHz CPU
IC698RMX016 GE redundant memory switch
IC698PSD300 GE power supply
IC698PSA350 GE power module
IC698PSA100 GE Multifunctional Power Module
IC698ETM001 GE Ethernet interface module
IC698CRE030 GE PAC Systems RX7i CPU
IC698CRE040 GE PAC Systems RX7i CPU
IC698CRE020 GE 700 MHz CPU
IC698CPE040 GE 1.8 MHz CPU
IC698CPE010 GE RX7i series CPU
IC698CPE010 GE CPU for GE Fanuc RX7i series
IC698CPE020 GE CPUs of the Systems RX7i series
IC687BEM744 GE FIP bus controller
IC687BEM731 GE bus controller
IC800VMTBC005 GE Breakout terminal board
IC800VMCB1100 GE power cable
IC800VMCB050 GE servo motor
IC800VMCB030 GE servo amplifier
IC800VMA072 GE 750 Watt Servo Amplifier
IC800SSI420RP2 GE 460 VAC S2K Controller
IC800SSI407RD2 GE Transformer controller
IC800SSI104D2 GE VersaMotion S2K Controller
IC800SSI216RD2 GE Servo Motor Controller
IC800SSD104RS1 GE S2K Series Servo Amplifiers
IC800MCUB12160XD GE Enlarged stepper motor
IC800SLA2502 GE servo amplifier
IC800BIK020 GE Servo amplifier kit
IC800BIHV010 GE High Voltage Amplifier Kit
IC800BBK021 GE Beta & Beta I Series Amplifiers
IC800ABK003 GE Built-in battery kit
IC800ABK002 GE Built-in battery kit
IC800VMA302 GE 3000W Servo Amplifiers
IC800VMA202 GE 2000W Servo Amplifiers
IC800VMA072 GE 750 Watt Servo Amplifier
IC800VMA102 GE servo amplifier
IC800VMA022 GE Servo Amplifiers
IC800VMA012 GE servo amplifier
IC800SSI420RP2 GE 460 VAC S2K Controller
IC800SSI420RD2 GE 460 VAC S2K Controller
IC800SSI407RS1 GE 460 VAC S2K Controller
Reviews
There are no reviews yet.