UFC721BE101 3BHE021889R0101 ABB Driver Control Module

Description

ABB UFC721BE101 3BHE021889R0101 Circuit Board Module

The part number UFC721BE101 3BHE021889R0101 to be a control board for a high-voltage frequency converte. This part is an output analog board for the control board mainboard. It can be used in conjunction with other ABB products such as the UDC920BE analog expansion module and the TP854 analog output module. Program optimization is important for PLC programming, Here are some tips for optimizing PLC programs: • Use flow control instructions to simplify the program structure. • Use powerful instructions instead of single-function instructions. • Pay attention to the order of instructions. • Use modular programming and object-oriented design to improve readability. • Use standard design practices whenever possible. • Use flow control instructions to selectively execute necessary instructions and avoid long maximum execution times. • Verify that the program is correct and functional before implementing it

1. Time saving

Program brevity can save program running time, but brevity and time saving are not the same thing. Because the running time of the program is related to the number of instructions that the program has, but also to what instructions are used. Different PLC instructions, the execution time is also different. In addition, some instructions are executed at different times when the logic condition is ON and when it is OFF. In addition, due to the use of flow control instructions, in the program, not all instructions have to be executed. Therefore, the calculation of the time to run the program is more complicated. However, it is necessary to require its average time to be less and the maximum time is not too long. This can improve the PLC response speed.

The key to saving time is to use flow control instructions well. Determine some instructions that must be executed according to the situation, as the necessary part, and the rest can be carried out according to the program, selectively executed, or make some time-sharing work design to avoid the maximum time is too long.

2. Readability

It is required that the program designed should be readable. This is not only easy for the programmer to deepen the understanding of the program, debugging, but also easy for others to read your program, easy for users to maintain. If necessary, the program can also be generalized.

To make the program readable, the program should be designed to be as clear as possible. Pay attention to the hierarchy, achieve modularity, so as to use an object-oriented approach to design. Use more standard designs.

Readability should be noticed at the beginning of programming. This is not easy to do completely. Because in the process of program debugging, the increase or decrease of instructions and the change of the use of internal devices may make the original clearer program become somewhat chaotic. Therefore, in the design, there is a certain amount of room for debugging, and then do some sorting after debugging, so that the designed program has higher quality.

One year warranty, special discount after sale

The company focuses on DCS, PLC, robot, large servo four systems

The main products are all kinds of module/card, controller, touch screen, servo drive

The company's advantages: the supply of imported original products, professional production of accessories

Fast delivery time, complete supply, The seller has more than $1526000 worth of industrial control products inventory

We Can transport to the world！！！

① 24-hour email reply (12 hours); 

② For shipment to countries outside Asia, please contact the seller.

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