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浙大中控DCS卡件:如何快速排查系统通讯故障?

2020-12-31 17:07:57 来源:http://www.sdjkyqyb.com/ 53

热电阻信号不准确怎么排查?
How to check if the signal of thermal resistance is not accurate?
A:首先,查看热电阻的组态,确认了组态中的热电阻型号和实际的型号保持一致;其次,保证上下位机组态一致。假如还是怀疑测温有问题的话,能够丈量现场热电阻A和B之间的阻值为R1;B和C之间的阻值为R2。
A: First, check the configuration of the thermal resistance, and confirm that the thermal resistance model in the configuration is consistent with the actual model; second, ensure that the upper and lower computer configuration is consistent. If you still suspect that there is a problem with temperature measurement, the resistance between a and B can be measured as R1; the resistance between B and C is R2.
根据3线制热电阻的测温原理,可以得到热电阻的实际电阻值为R1-2R2。然后查表找出对应的温度。然后用这个温度和监控上的温度再进行比较。如果出入较大,请更换卡件后再次尝试。
According to the temperature measurement principle of three wire thermistor, the actual resistance value of the thermistor is r1-2r2. Then look up the table to find out the corresponding temperature. Then compare this temperature with the temperature on the monitor. If the access is large, please replace the card and try again.
如何快速排查系统通讯故障?
How to quickly check the system communication failure?
在系统运行过程中若发现通讯故障,应重点做如下检查:
If communication failure is found in the process of system operation, the following inspection shall be focused on:
1、了解清楚具体故障现象,是所有通讯中断还是某部分数据通 讯异常,还是某操作站通讯异常,这对之后的排查很重要。
1. It is very important to understand the specific fault phenomenon, whether it is all communication interruption or some data communication abnormality, or an operation station communication abnormality.
              浙大中控DCS卡件
2、工程师权限进入监控故障诊断画面,观察是否有通讯卡件或总线故障报警(如数据转发卡,主控卡等)提示。发现卡件故障用备件更换。
2. The engineer has the right to enter the monitoring fault diagnosis screen to observe whether there is communication card or bus fault alarm (such as data transfer card, master control card, etc.). If the card fails, replace it with spare parts.
3、检查目前网络是否通畅,检查交换机、控制站供电是否正常。可用计算机ping命令检查各网络节点是否通畅。
3. Check whether the current network is unobstructed and whether the power supply of switches and control stations is normal. The ping command can be used to check whether each network node is unobstructed.
4、网线、交换机、SBUS线等故障均可能引起网络故障,可将其排除法更换测试。
4. Network cable, switch, SBUs line and other faults may cause network faults, so the troubleshooting method can be replaced and tested.
5、检查有问题操作站IP设置是否正确,卡件地址(主控卡、数据转发卡)设置是否正确、网卡驱动是否正确安装,网线连接是否不正确(交叉等)。
5. Check whether the IP setting of the operation station in question is correct, whether the card address (master control card, data transfer card) is set correctly, whether the network card driver is installed correctly, and whether the network cable connection is incorrect (cross, etc.).
以上是"浙大中控DCS卡件对如何快速排查系统通讯故障"的介绍,希望对大家有所帮助,如想了解更多资讯内容请点击我们的网站:http://www.sdjkyqyb.com
The above is the introduction of "how to quickly check the system communication failure by DCs card of Zhejiang University central control". I hope it can help you. For more information, please click our website: http://www.sdjkyqyb.com 。
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