UFC721BE101 3BHE021889R0101 可编程控制器

UFC721BE101 3BHE021889R0101   可编程控制器

输入输出回路调试(1 )模拟量输入(AI)回路调试。要仔细核对10模块的地址分配;检查回路供电方式(内供电或外供电)是否与现场仪表相一致;用信号发生器在现场端对每 个通道加入信号,通常取0、50%或100%三 点进行检查。对有报警、联锁值的AI回路,还要在报警联锁值(如高报、低报和联锁点以及精度)进行检查，确认有关报警、联锁状态的正确性。(2)模拟量输出(AO)回路调试。可根据回路控制的要求，用手动输出(即直接在控制系统中设定)的办法检查执行机构(如阀门]开度等)，通常也取0、50%或100%三点进行检查;同时通过闭环控制,检查输出是否满足有关要求。对有报警、联锁值的AO回路，还要在报警联锁值(如高报、低报和联锁点以及精度)进行检查，确认有关报警、联锁状态的正确性。(3)开关量输入(DI)回路调试。在相应的现场端短接或断开，检查开关量输入模块对应通道地址的发光二极管的变化，同时检查通道的通、断变化。(4)开关 量输出(DO)回路调试。可通过PLC系统提供的强制功能对输出点进行检查。通过强制,检开关量输出模块对应通道地址的发光二极管的变化， 同时检查通道的通、断变化。

Input and output circuit debugging (1) Analog input (AI) circuit debugging. Carefully check the address allocation of module 10; Check whether the circuit power supply method (internal or external power supply) is consistent with the on-site instruments; Use a signal generator to add signals to each channel on site, usually checking at 0, 50%, or 100% points. For AI circuits with alarm and interlocking values, it is necessary to check the alarm interlocking values (such as high alarm, low alarm, interlocking points, and accuracy) to confirm the correctness of the alarm and interlocking status. (2) Analog output (AO) circuit debugging. According to the requirements of circuit control, the actuator (such as valve opening, etc.) can be checked using manual output (i.e. directly set in the control system), usually with three points of 0, 50%, or 100%; At the same time, through closed-loop control, check whether the output meets relevant requirements. For AO circuits with alarm and interlocking values, it is necessary to check the alarm interlocking values (such as high alarm, low alarm, interlocking points, and accuracy) to confirm the correctness of the alarm and interlocking status. (3) Switch input (DI) circuit debugging. Short circuit or disconnect at the corresponding field terminal, check the changes in the LED of the corresponding channel address of the switch input module, and also check the changes in the on and off of the channel. (4) Switch output (DO) circuit debugging. The output points can be checked through the mandatory function provided by the PLC system. By forcing, check the changes in the LED of the corresponding channel address of the switch output module, and also check the on and off changes of the channel.

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