Description

Westinghouse 1C31129G03 is an Ovation series card produced by Westinghouse(Westinghouse)in the United States.The following is a detailed introduction to the card:

1.Main features

Westinghouse Ovation series cards,such as 1C31129G03,usually have the following features:

Processing power:Ability to handle multiple applications(including networks).

Compatibility:Ability to switch completely without interference,and compatible with third-party software for data communication,control,user C language programming and simulation.

Multitasking support:Supports multitasking and priority task planning.

System standard:Fully compliant with the open system standard of POSIX1003.1b.

Westinghouse 1C31129G03

2.Application field

Westinghouse 1C31129G03 cards are widely used in large,medium and small steel mills,petrochemicals,power plants and other industrial automation process control fields.

3.Technical details and anti-interference measures

Suppression of power supply interference:

Protection is carried out by setting shielded cables and PLC local shielding and high-voltage discharge components.

Select equipment with good isolation performance and excellent power supply.

The routing of power lines and signal lines should be more reasonable.The main components such as power transformers,central processing units,programmers,etc.should be shielded with conductive and magnetic materials to prevent the influence of external interference signals.

The+5V power supply required by the core components of the microprocessor is processed by multi-stage filtering and adjusted with an integrated voltage regulator to adapt to the fluctuations of the AC power grid and the influence of overvoltage and undervoltage.

Anti-interference measures introduced by signal lines:

The power line,control line,and PLC power line and I/O line should be wired separately,and twisted pair cables should be used to connect the isolation transformer to the PLC and I/O.

The PLC’s I/O line and high-power line should be routed separately.If conditions permit,it is best to route them in separate slots to minimize interference.

The interference problem can be solved by using a signal isolator.The principle is to modulate and transform the signal received by the PLC through a semiconductor device,then isolate and convert it through an optical or magnetic induction device,and then demodulate and transform it back to the original signal before isolation or a different signal,and at the same time isolate the power supply of the isolated signal.

Westinghouse 1C31129G03

Grounding:

Correctly select the grounding point and improve the grounding system.This is an important condition to ensure the reliable operation of PLC and avoid accidental voltage shock hazards.

There are usually two purposes for grounding:one is for safety and the other is to suppress interference.A perfect grounding system is one of the important measures for PLC control system to resist electromagnetic interference.

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