T8451C 可信TMR 24 Vdc数字 输出模块- 40通道 T8451 T8461 T8461C

TMR 24 Vdc数字输出模块是输入/输出(I/O)模块可信范围的成员。所有可信I/O模块共享共同的功能和形式。在最一般的层面上,所有的I/O模块接口到模块间总线(IMB),它提供电源并允许与TMR处理器通信。此外,所有模块都有一个字段接口,用于连接字段中特定于模块的信号。所有模块都是三模冗余(TMR)。

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详情介绍:T8451C 可信TMR 24 Vdc数字 输出模块- 40通道 T8451 T8461 T8461C

TMR 24 Vdc数字输出模块是输入/输出(I/O)模块可信范围的成员。所有可信I/O模块共享共同的功能和形式。在最一般的层面上,所有的I/O模块接口到模块间总线(IMB),它提供电源并允许与TMR处理器通信。此外,所有模块都有一个字段接口,用于连接字段中特定于模块的信号。所有模块都是三模冗余(TMR)。

所有高完整性I/O模块都由四个部分组成:主机接口单元(HIU)、现场接口单元(FIU)、现场终端单元(FTU)和前面板单元(FPU)。

现场终端单元(FTU)是I/O模块的一部分,它将所有三个fiu连接到单个现场接口。FTU提供组故障安全开关和无源元件,用于信号调理,过压保护和EMI/RFI滤波。当安装在可信控制器或扩展器机箱中时,FTU现场连接器连接到附加在机箱后部的现场I/O电缆组件。
SmartSlot链路通过FTU从HIU传递到现场连接。这些信号直接进入现场连接器,并与FTU上的I/O信号保持隔离。SmartSlot链路是主备模块之间的智能连接,用于模块更换过程中的协调。

现场接口单元(FIU)是模块的一部分,包含与特定类型的现场I/O信号接口所需的特定电路。每个模块有三个fiu,每个切片一个。对于TMR 24 Vdc数字输出模块,FIU包含输出开关结构的一个阶段,以及40个字段输出中的每个sigma-delta (ΣΔ)输出电路。两个额外的ΣΔ电路提供外部场I/O供电电压的可选监控。
FIU从HIU接收隔离的逻辑电源。FIU为系统所需的工作电压提供额外的功率调节
事业单位电路。一个隔离的6.25 Mbit/s串行链路将每个FIU连接到其中一个HIU片。
FIU还测量一系列板载“管家”信号,以协助监控模块的性能和操作条件。
这些信号包括电源电压、电流消耗、板载参考电压和板载温度。

T8451C

The TMR 24 Vdc Digital Output Module is a member of the Trusted range of input/output (I/O) Modules. All Trusted I/O Modules share common functionality and form. At the most general level, all I/O Modules interface to the Inter-Module Bus (IMB) which provides power and allows communication with the TMR Processor. In addition, all Modules have a field interface that is used to connect to Module-specific signals in the field. All Modules are Triple Modular Redundant (TMR).

All High Integrity I/O Modules are made up of four sections: Host Interface Unit (HIU), the Field Interface Unit (FIU), the Field Termination Unit (FTU), and the Front Panel Unit (or FPU).

The Field Termination Unit (FTU) is the section of the I/O Module that connects all three FIUs to a single field interface. The FTU provides the Group Fail-Safe Switches and passive components necessary for signal conditioning, overvoltage protection, and EMI/RFI filtering. When installed in a Trusted Controller or Expander Chassis, the FTU field connector interconnects to the Field I/O Cable Assembly attached at the rear of the Chassis.
The SmartSlot link is passed from the HIU to the field connections via the FTU. These signals go directly to the field connector and maintain isolation from the I/O signals on the FTU. The SmartSlot link is the intelligent connection between Active and Standby Modules for coordination during Module replacement.

The Field Interface Unit (FIU) is the section of the Module that contains the specific circuits necessary to interface to the particular types of field I/O signals. Each Module has three FIUs, one per slice. For the TMR 24 Vdc Digital Output Module, the FIU contains one stage of the output switch structure,and sigma-delta (ΣΔ) output circuit for each of the 40 field outputs. Two additional ΣΔ circuits provide optional monitoring of the external field I/O supply voltage.
The FIU receives isolated power from the HIU for logic. The FIU provides additional power conditioning for the operational voltages required by the
FIU circuitry. An isolated 6.25 Mbit/sec serial link connects each FIU to one of the HIU slices.
The FIU also measures a range of onboard “housekeeping” signals that assist in monitoring the performance and operating conditions of the Module.
These signals include power supply voltages, current consumption, onboard reference voltages and board temperature.

热卖型号:T8451C 可信TMR 24 Vdc数字 输出模块- 40通道 T8451 T8461 T8461C

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