Fermentation tank in addition to the mechanical points, the used control system is also very important. The merits of the control system had a great influence on the normal use of fermentation equipment.

 

At present, using more control system on the market basically has three forms: Industrial PC and single chip microcomputer (SCM), programmable logic controller (PLC). Although many manufacturers put forward many solutions, but its core technology mainly these three controls. So the user should understand its essence characteristics in order to select and sometimes is not passive.

 

1.       Fermentation tank Industrial PC system

The so-called industrial control computer is using a modified computer + various control panels, It's the end of the 80 s to 80 s international popular a kind of industrial control mode. This kind of control mode structure is more complex, the pursuit of simple and practical with automation control doesn't fit the theory. Complex structures are more prone to problems.

The biggest drawback of this control system are high-speed sampling control mode, are susceptible to interference, error data acquisition, if use software to filter can cause data response very slow, so overall operating stability is poorer. And the stability of the existing operating system also has certain problem, often run into a computer crash; it will have an effect on experiment, serious when a direct result of the experiment failed. This system's biggest advantage is low cost, price is cheaper, so many factories still keep using. Due to the defects of this kind of control mode is bigger, so the late 90 s has gradually be eliminated.

2.       Fermentation tank Single Chip Micyoco system

Single Chip Micyoco's main controller is small in size, low frequency, good stability, powerful functions, overcome the poor stability of industrial control computer, easy to crash, the disadvantages of easy to damage. At the same time, the price of the PLC system is relatively cheap. Single Chip Micyoco is now widely used in many fields of a form of control.

3.       Fermentation tank PLC control system

PLC main controller adopts modular method, extension, easy programming, and large storage, and data analysis, convenient and high stability. In the present it has been more and more used in industrial control, and it's a mainstream trend of the development in the future.

 

1.       Cost

In terms of cost, industrial PC and single chip microcomputer are relatively cheap, PLC is higher.

2.       Function

It's relative to speak, PLC has powerful functions, because adopts modular method, extension, programming is very convenient. Industrial extension mouth enough to connect various panels to extend more convenient, but as the board increased interference also exacerbate, further influence on stability of. And extend MCU programming has certain limitations, but a set of mature system on the extension and reprogrammed request is not much.

3.       Stability

Obviously, composed of PLC system stability is best, followed by the single chip microcomputer system, there are too many disadvantages of industrial system, especially when the choice carefully.

After a preliminary understanding, you have to do is to analyze their real needs which kind of control system.

For colleges and universities and scientific research units' research and development of new products, using laboratory fermentation tank, and controlled by single chip microcomputer for the optimal, combining with the computer program control, it is a good plan, both the performance and price.

 

If well-funded can consider adopting PLC system, high stability, powerful functions, large screen color touch-screen display and control, convenient operation and beautiful generous.

For pilot and production of fermentation tank is best adopt PLC control system.

Its powerful function, easy to expand; High stability, safety and reliability, If limited to money is not enough you might also consider a microcontroller system, as long as mature technology can meet the same industrial applications.

Selection is not recommended for this scale fermentation equipment industrial computer system; Because of its potential for large-scale pilot production hidden is too much danger and it's not enough to be in the user needs.