1C31238H01 OVATION
DCS system anti-interference requirements
In order to improve the measurement level and control accuracy of the power plant DCS system, ensure the safe, stable, and reliable operation of the control system, it is necessary to reasonably consider the anti-interference requirements of the DCS system in terms of power supply, signal, and grounding. The design, construction, and maintenance stages of the thermal control profession. Power supply safety is the most basic requirement of any power supply system, and the input and output signal lines of DCS are one of the ways for interference signals to enter DCS. Generally speaking, the weaker the signal, the greater the impact of interference. The earthing system provides a unified and common reference voltage reference point for the whole system. When the power supply or equipment fails, the overload current is borne by the effective earthing system and quickly transmitted to the ground to ensure the safety of personnel and equipment. In addition, the earthing system also provides shielding for DCS equipment to eliminate interference.
5X00790G01; 5X00270G01; 5X00105G14
5X00717G01; 5X00241G02; 5X00070G04
5X00658G01; 5X00228G01; 5X00062G01
5X00489G01
5X00481G01; 5X00226G02; 5X00058G01
4A00120H01 plough 9x00208G01
The components of PLC include power supply, CPU, interface circuit, I/O circuit, and memory. Noteworthy
The power supply here is not a simple energy storage facility, but includes the system, power failure protection, and backup
Electric energy storage devices. The central processing unit, also known as the CPU, is a type of processor that can perform logical and numerical operations
The core control and regulation system equipment for learning arithmetic functions. However, compared to interface circuits, it mainly refers to PLC
The channel connected to on-site devices and peripheral devices. And the I/O circuit is the input circuit that isolates the input signal
Open, level conversion, and output circuits amplify and convert the data output through PLC, and input
To achieve the purpose of controlling on-site equipment. But in terms of storage, its main purpose is to monitor the storage system
Control, variable, user program, and other information.
Bardac drive power plx185/405 plx185/405 power plx 185
New Siemens 39VIMCCN VIM APACS+Voltage Input Module
NEW MODICON 410-4/S908 SERVO POSITIONER DRIVE 410 4 s90
ABB Floppy Disk Module DSMD-113 DSMD 113 5736 045-N NEW
NEW ACTUS POWER NPSA-10NN-51 NPSA10NN51 Nikki Denso
ABB ASEA 5752 0001-BZ 57520001-BZ DSCS-116 DSCS116 NEW
