RELANCE 0-51378-25 输入模块
DCS日常维护时需要对哪些数据进行备份？0-51378-25需要对组态、PID参数、工艺参数（设定值）、系统安装软件、电脑驱动以及认为重要的趋势、报表等数据进行备份。 0-51378-25DCS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？
0-51378-25 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： 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。 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。 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
某操作站监控有时候会自动退出，是否异常？ A： 系统退出的原因有很多，几个月偶尔退出1次，属于系统正常情况，因为如果计算机内存占用过大或运行程序过多有可能影响监控退出。但如果频繁退出（比如每天或每周）则不正常。一般系统退出主要有如下几种原因： 1、系统软件安装不规范，重新安装后可以解决。 2、同一个时间恰好出现了多个报警，导致计算机系统的资源不足报错。 3、系统调用的组态路径为网络路径，非本机路径。
What data needs to be backed up for daily maintenance of DCS? A: It is necessary to backup configuration, PID parameters, process parameters (set values), system installation software, computer drivers, as well as important trend and report data. Q9: How to quickly troubleshoot the display of a signal (temperature, pressure, flow rate, etc.) at a certain measuring point in the DCS system?
A: Inaccurate or no display of signal display data is a common problem that may be caused by on-site instruments or DCS. Quick judgment methods include: 1. Simulate standard signal testing with a signal generator (provided that there must be a signal generator available on site) or connect another type of signal cable to the channel signal for testing. If it is normal, it indicates that DCS is normal, Recheck if there are any errors in the DCS signal on site.
Check if the positive and negative signals are reversed, if the jumper settings for the card are correct (especially for newly added points), and if there are any errors in the configuration model, range, compensation, and other parameter settings. 3. Check if other measuring points of the card to which the signal belongs are operating normally, and determine whether it is possible to use the method of replacing the spare parts of the card to detect whether it is a card fault based on the actual situation on site. When replacing, pay attention to the jumper settings
Is it abnormal that the monitoring of a certain operation station sometimes automatically exits? A: There are many reasons for system exit, with occasional exits occurring every few months, which is a normal situation for the system. If the computer's memory usage is too large or there are too many programs running, it may affect monitoring exit. But frequent exits (such as daily or weekly) are abnormal. There are several main reasons for system exit: 1. The installation of system software is not standardized, and it can be resolved after reinstallation. 2. Multiple alarms occurred at the same time, causing the computer system to run out of resources and report errors. 3. The configuration path for system calls is a network path, not a local path.