DCS spare parts In the process of using the DCS control system, its management is more important. The requirements of general DCS spare parts management are summarized in four aspects: storage, inspection, preparation for use, and use.
1. Storage
The requirements that should be met for the storage of DCS system and spare modules are: all kinds of modules must be packaged in anti-static bags or stored according to the requirements of the manufacturer, and the temperature and humidity of the module storage room should also meet the requirements of the manufacturer; Anti-static measures should be taken when accessing the module, and it is forbidden to touch the circuit board with your hands at any time, and the registration should be carried out to go through the procedures for entering and exiting the warehouse.
2. Regular inspection
Every six months, a small number of commonly used DCS spare parts are inspected, of course, the cycle formulated by different companies is different, depending on the actual situation, the inspection content is as follows:
The surface is clean, the printed board insert is free of oil stains, the printed plate insert is free of oil stains, and there is no abnormality after slight knocking;
Load the test software, and work normally for no less than 48 hours;
Switching test of redundant modules;
The software loading and unloading test is normal, and the communication port and hand operation station are working normally;
All kinds of analog and switching input and output channels work normally;
After the inspection, the inspection record should be filled in and the conformity mark should be glued.
3. Prepare before use
Before operation, it is necessary to check whether the communication port, I/O function, and control algorithm function meet the requirements; Check the status of the module on the engineer station to meet the requirements; Insert the configuration in the module and check whether it is correct.
4. In actual use, the address of the module and other switches should be set, and the relevant personnel can confirm before inserting the correct mold position and filling in the record card.
The above is a summary of the four types of key points in the management process of DCS spare parts, which can be improved according to different use industries and environments, and are suitable for different occasions.
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