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浙大中控DCS卡件某测点信号显示故障应如何快速排除?

2021-02-16 15:44:12 来源:http://www.sdjkyqyb.com/ 53

DCS系统某测点信号(温度、压力或流量等)显示故障应如何快速排除?
How to quickly remove the display fault of DCS signal (temperature, pressure or flow, etc.)?
信号显示数据不准或无显示是可能常遇到的问题,它可能由于现场仪表引起,也可能由于DCS引起,可采取快速判断的方法有:
Inaccurate or no display of signal data is a common problem. It may be caused by field instruments or DCS. The methods of quick judgment are as follows:
1)用信号发生器模拟标准信号测试(前提是现场必须有信号发生器可使用)或将另一同类型信号线缆改接到该通道信号引入测试,若正常表明DCS正常,再检查现场进DCS信号是否有误。
1) Use the signal generator to simulate the standard signal test (provided that there must be a signal generator available on site) or connect another signal cable of the same type to the channel for signal introduction test. If it is normal, it indicates that the DCS is normal, and then check whether the on-site DCS signal is wrong.
            浙大中控DCS卡件
2)检查信号线正负是否接反、卡件跳线设置是否正确(特别是新增点),组态型号、量程、补偿等参数设置是否有误。
2) Check whether the positive and negative of the signal line are connected reversely, whether the jumper setting of the card is correct (especially the new point), and whether the configuration model, range, compensation and other parameters are set incorrectly.
3)检查该信号所属卡件其他测点运行是否正常,并根据现场实际情况判断是否可采用对该卡件备件更换的方式检测是否为卡件故障,更换时注意跳线设置。
3) Check whether other measuring points of the card to which the signal belongs operate normally, and judge whether the card spare parts can be replaced according to the actual situation on site to detect whether it is card fault, and pay attention to the jumper setting when replacing.
本文由浙大中控DCS卡件整理提供,如想了解更多资讯内容请点击网站:http://www.sdjkyqyb.com
This article is provided by the central control DCS card of Zhejiang University. For more information, please click the website: http://www.sdjkyqyb.com .
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