IS210BPPBH2BMD模块备件

IS210BPPBH2BMD

IS210Bt发现和验证
模块操作特性。在每个切片的内部进行测量
HIU和FIU。
从IMB到现场连接器，输入模块包含大量
故障检测和完整性测试。作为输入设备，所有测试都是
以非干扰模式执行。从IMB输入的数据存储在
HIU每个切片部分上的冗余纠错RAM。收到
数据由每个切片投票。所有数据传输都包括确认
来自接收器的响应。
在HIU和FIU之间，有一系列光学隔离的数据链路
和权力。数据链路是同步的，并监控其变化。二者都
FIU和HIU配备了机载温度传感器，用于表征
与温度相关的问题。
HIU和FIU板的电源都是冗余的、完全冗余的
仪器化和可测试。这些组件一起形成电源完整性
子系统。
模块现场输入连接到称为∑Δ输入的单位ADC
环行这些电路，每个片上每个通道一个，产生数字输出
电路中的任何故障都会导致
饱和输出卡在接通或断开位置，这是自动的
检测。因为转换过程是动态的，而不是像传统的那样被选通
通过ADC，可以快速诊断和定位故障。
通过使用∑∆ 电路中，模块中的模拟路径短路且不正确
它涉及许多组件。这会导致模拟故障被控制在一个范围内
单个切片上的单个通道，而不是导致一组八个或更多
输入失败。
家务
故障检测和测试
第2章说明
罗克韦尔自动化出版物ICSTT-RM271Q-EN-P-2021 8月17日
输入模块自动测量现场输入电压
并确定字段的状态
输入当输入从一种状态转换到另一种状态时发生事件。
当输入改变状态时，记录车载实时时钟值。
当TMR处理器接下来从输入模块读取数据时
检索状态和实时时钟值。TMR处理器使用此
将输入状态变化记录到系统事件序列（SOE）中的数据
日志用户可以将每个输入配置为包括在系统SOE日志中。
SOE的完整细节包含在可信的事件和流程序列中
Historian软件包产品说明，出版物电压，电流
消耗和板温度。
前面板单元（FPU）包括前面板终端单元（FPTU）
以及前面板显示单元（FPDU）。整个FPU包含：
前面板所需的连接器、开关、逻辑和LED指示灯。
对于每种类型的可信I/O模块，
主/备用和指示灯（LED）以及模块拆卸
开关。额外的双色LED为个人提供状态指示
I/O信号。串行数据接口将FPU连接到每个HIU片，以：
控制LED状态指示灯并监控模块拆卸开关。
模块通过比较确定触点状态和线路故障状态
输入电压电平为四个用户编程阈值和两个固定阈值
（小和大）阈值。选择“接触不确定”区域
在触点闭合和打开状态之间定义，以考虑边缘
主机接口单元（HIU）
前面板单元（FPU）
在线监测阈值
第2章说明
罗克韦尔自动化出版物ICSTT-RM271Q-EN-P-2021 8月15日
外部接线或FIU中存在故障。磁滞被提供在电极上
通过对应于阈值的上尺度值和下尺度值来确定阈值
用于分别增大和减小值。
表1：阈值数据示例
提示：返回的通道状态值取决于以前的状态值。如果输入电平为
增加，则返回较低的状态值。如果输入电平降低
将返回状态值。
当模块被插入到被监控线路中的备用插槽中时
则所有输入通道的字段终止为：
导致有源模块的输入电压下降。
因此，建议使用齐纳元件进行在线监测
第2章说明
16罗克韦尔自动化出版物ICSTT-RM271Q-EN-P-2021 8月
二极管，一个与跨电源的磁场开关并联
另一个与信号串联。
该模块通过5K电压偏置每个输入通道Ω （典型用于24 Vdc
数字输入）端接电阻器至模块输入的0 V参考电压
电路。在没有任何线路故障的情况下，齐纳二极管用于线路
出于监测的目的，形成一个分压器，该端接电阻器位于
模块。通常，这些值的选择应确保
输入端约为现场电源的1/3；机智PPBH2BMD

IS210BPPBH2BMD

t finding and verification of
Module operating characteristics. Measurements are made within each slice’s
HIU and FIU.
From the IMB to the field connector, the Input Module contains extensive
fault detection and integrity testing. As an input device, all testing is
performed in a non-interfering mode. Data input from the IMB is stored in
redundant error-correcting RAM on each slice portion of the HIU. Received
data is voted on by each slice. All data transmissions include a confirmation
response from the receiver.
Between the HIU and FIU, there are a series of optically isolated links for data
and power. The data link is synchronized and monitored for variance. Both
the FIU and HIU have onboard temperature sensors to characterize
temperature-related problems.
The power supplies for both the HIU and FIU boards are redundant, fully
instrumented and testable. Together, these assemblies form a Power Integrity
Subsystem.
The module field input is connected to a single bit ADC known as the ΣΔ input
circuit. These circuits, one per channel on each slice, produce a digital output
that naturally transitions between on and off. Any failure in the circuit causes
the output to saturate to stuck-on or stuck-off, which is automatically
detected. As the conversion process is dynamic and not gated like traditional
ADCs, failures are rapidly diagnosed and located.
By using the Σ∆ circuit, the analog path in the Module is short and does not
involve many components. This results in analog failures being contained to a
single channel on a single slice instead of causing a group of eight or more
inputs to fail.
Housekeeping
Fault detection and testing
Chapter 2 Description
Rockwell Automation Publication ICSTT-RM271Q-EN-P - August 2021 17
The Input Module automatically measures the field input voltage, compares
the value to the configurable thresholds, and determines the state of the field
input. An event occurs when the input transitions from one state to another.
When an input changes state, the onboard real-time clock value is recorded.
When the TMR Processor next reads data from the Input Module, the input
state and real-time clock values are retrieved. The TMR Processor uses this
data to log the input state change into the system Sequence of Events (SOE)
log. The user may configure each input to be included in the system SOE log.
Full details of SOE are contained in Trusted Sequence of Events and Process
Historian Package Product Description, publicationvoltages, current
consumption and board temperature.
The Front Panel Unit (FPU) comprises a Front Panel Termination Unit (FPTU)
and a Front Panel Display Unit (FPDU). The overall FPU contains the
necessary connectors, switches, logic, and LED indicators for the Front Panel.
For every type of Trusted I/O Module, the FPU contains the Slice Healthy,
Active/Standby and Educated indicators (LEDs), and the module removal
switches. Additional bicolor LEDs provide status indication for the individual
I/O signals. Serial data interfaces connect the FPU to each of the HIU slices to
control the LED status indicators and monitor the module removal switches.
The Module determines the contact state and line fault status by comparing
the input voltage level to four user programmed thresholds and two fixed
(minimum and maximum) thresholds. A "Contact Indeterminate" region is
defined between the contact Closed and Open states to account for marginal
Host Interface Unit (HIU)
Front Panel Unit (FPU)
Line Monitoring Thresholds
Chapter 2 Description
Rockwell Automation Publication ICSTT-RM271Q-EN-P - August 2021 15
faults in the external wiring or in the FIU. Hysteresis is provided on the
thresholds by upscale and downscale values, corresponding to the thresholds
for increasing and decreasing values respectively.
Table 1 Example Threshold Data
Tip: The channel state value returned is dependent on the previous state value. If the input level is
increasing, then the lower state value will be returned. If the input level is decreasing, the higher
state value will be returned.
When a Module is inserted into the standby slot in a line-monitored
application, then the field terminations for all the input channels are
paralleled, resulting in a drop in the input voltages for the Active Module.
Therefore the recommended components for line monitoring are zener 
Chapter 2 Description
16 Rockwell Automation Publication ICSTT-RM271Q-EN-P - August 2021
diodes, one in parallel with the field switch that is across the supply and
signal, the other in series with the signal.
The Module biases each input channel by means of a 5 kΩ (typical for 24 Vdc
digital inputs) termination resistor to the 0 V reference of the module input
circuitry. In the absence of any line fault, the zener diodes used for line
monitoring purposes form a voltage divider with this termination resistor in
the Module. Typically, the values are chosen so that the open contact voltage at
the input terminal is about 1/3 of the field supply; with the user contact closed
the voltage is about 2/3 of the field supply, illustrated in the previous threshold
table, default threshold values used for non-line monitored inputs are as
follows (in raw units):
Default = -4096, -2305, -1971, 3046, 3072, 7168, 8192, 14848, 15872, 19456
The Input Module automatically performs local measurements of several
onboard signals that can be used for detailed faul