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143.11J X-500254模拟量输入控制器
如果模块未能通过内部诊断，将重试两次。如果其中之一成功，临时故障被视为软故障，不会报告给PLC，但模块系统不间断地继续处理。如果模块出现故障
诊断三次后，系统进入加电复位状态。转换设置和监视器
注意：在通电诊断运行时，或在检测到硬故障后故障，数据不可用于PLC。
良好数据。下图显示了的状态标志和数据字格式PLC的良好数据。发送良好数据时，状态标志位14和15被重置到0。
良好的数据字输出到PLC超出范围数据。下图显示的状态标志和数据字格式输出到PLC的数据超出范围。发送超出范围的数据时，状态位14将重置为0，位15将重置为1，并且超出范围指示器将照明输出到PLC的数据字超出范围超出范围需要仔细检查。
由于模块接收来自现场的瞬时数据
但将平均数据发送至PLC，RB格式中小于0或大于4200的瞬时数据被视为超出范围。这些数据将被强制（限制）为0000（低于范围）和4200（低于范围超出范围值。然而，平均数据不一定超出范围如果条件存在的时间少于总平均时间。
在这种情况下，该格式表示平均值超出范围。其平均值为固定值；
平均值可能超出范围，也可能不超出范围。红色超出范围灯将保持亮起只要超出范围的数据样本包含在平均值中。倾斜开关组A高速模拟输入模块可以设置为五个输入电压中的任何一个或通过DIP开关的电流范围。您还可以从七个时段中进行选择数字滤波；允许瞬时电压样本成为移动平均线的一部分。DIP开关还将模块设置为4或8电路模式和二进制或十进制输出。
为了便于讨论，我们将指定上部DIP开关组A（DIP swA）和下部开关组B（DIP sw-B）。这些交换机通过位于模块后部。
下图显示了从模块后部看到的下倾开关-A。蘸sw-A用于选择输入范围。
气缸组A的双列直插式开关正常工作
Out--of--Range requires careful examination.
Since the module receives instantaneous data from the field but sends averaged data to the PLC, instantaneous data less than 0 or greater than 4200 in RB format is considered outof-range. Such data will be forced (clamped) to 0000 for under--range and 4200 for over-range values. However, the averaged data will not necessarily be out-of-range if the condition existed for less time than the total averaging period. In this case, the format indicates at least one of the instantaneous data samples in the average is out of range. Its value for averaging purposes is the clamped value; the average may or may not be out of range. The red out-of-range light will remain on as long as an out-of-range data sample is included in the average. If the module fails to pass an internal diagnostic, two retries are made. If either one succeeds, the temporary failure is considered a soft failure and is not reported to the PLC but the module system continues processing uninterrupted. If the module fails the diagnostic three times, the system goes into a power--up reset condition. switch settings and monitor NOTE: While power-up diagnostics are running, or following detection of a hard failure, data is not available to the PLC. Good Data. The following illustration shows status flags and data word format for good data to the PLC. When sending good data, status flag bits 14 and 15 are reset to 0. Good Data Word Output to PLC
Dip Switch Bank A
The high speed analog input module can be set for any of the five input voltage or current ranges by means of DIP switches. You can also select from seven periods of digital filtering; a feature which allows an instantaneous voltage sample to become part of a moving average. The DIP switches also set the module for 4 or 8 circuit mode and binary or decimal output. For discussion purposes, we will designate the upper DIP switch bank, A (DIP swA) and lower bank, B (DIP sw-B). These switches are accessed through ports at the rear of the module. The following illustration shows DIP sw-A as seen from the rear of the module. Dip sw-A is used for selecting an input range. Dip switch bank A normal operation
