VE4001S2T2B5 DeltaV™s系列传统I/O

I/O载波为I/O接口提供集成的总线现场配电。集成母线按奇数和偶数插槽分为主电源和次电源。每个插槽单独熔接，以保护其他卡的电源。这大大减少了外部配电电路，同时仍然为每个卡提供融合的24V直流总线现场电源。
易于在线扩展:s系列I/O载波和接口可以轻松在线添加，而不会中断现有的I/O通信。I/O载波可以在线扩展，要么直接连接到现有载波的右侧，要么使用扩展电缆将新载波安装在不同的DIN导轨上。控制器自动检测新的载波和接口，并允许这些被自动感知到配置数据库。
现场安装的硬件:所有s系列传统I/O接口的额定工作温度范围为-40至70°C(-40至158°F)。这些接口可以安装在现场安装的外壳中，因此您可以显着减少设备的占地面积，并为其他用途增加宝贵的控制室空间。这还允许您通过消除长时间运行多核来节省布线费用。
I/O子系统的集成设计可以消除对封送面板的需要。这为你节省了更多的总资本成本。

冗余I/O卡可用于关键应用程序。
同一张卡可以用于单一或冗余的应用程序。当安装在两宽冗余端子块上时，卡被控制器识别为冗余对。控制器扫描每个卡，并确定哪个卡作为活动接口。当检测到故障时，系统自动切换到备用I/O卡。
DeltaV控制模块相同地参考单工和冗余I/O通道，并且不需要特殊配置来利用冗余。
冗余I/O卡的切换在I/O总线的两次扫描内完成。断前闭合触点确保数字现场仪器保持供电，过程不受干扰。模拟输出信号在卡切换期间由两卡短暂驱动<5毫秒。
硬件警报会自动报告主卡和辅助卡的硬件完整性错误。任何导致切换的事件也会通过系统硬件警报自动报告，并记录在event Chronicle中。
可能导致倒换的事件包括:
活动卡内硬件故障。
活动卡与控制器之间通信失败。
现场接线故障的检测。

VE4001S2T2B5

The I/O carriers provide integrated bussed field power distribution to the I/O interfaces. The integrated bus is divided into primary and secondary power for odd- and even-numbered slots. Each slot is individually fused to protect power to other cards. This significantly reduces the external power distribution circuits while still providing each card with fused 24V DC bussed field power.
Easy online expansion: The S-series I/O carriers and interfaces can easily be added online, without disruption of existing I/O communication. I/O carriers can be extended online, either by directly connecting them to the right side of the existing carrier, or using extender cables to mount the new carrier on a different DIN rail. The controller automatically detects new carriers and interfaces and allows these to be auto-sensed into the configuration database.
Field-mounted capable hardware: All S-series traditional I/O interfaces are rated for extreme operating temperature ranges of -40 to 70°C (-40 to 158°F). The interfaces can be installed in field mounted enclosures so you significantly reduce the footprint of your equipment and increase valuable control room space for other uses. This also allows you to save on wiring expenses by eliminating the need for long runs of multi-cores.
The integrated design of the I/O subsystem can eliminate the need for marshaling panels. This saves you even more in your total capital costs.

Redundant I/O cards are available for critical applications.
The same card can be used in simplex or redundant applications. When installed on a two-wide redundant terminal block, the cards are recognized as a redundant pair by the controller. The controller scans each card and determines which card is acting as the active interface. When a fault is detected, the system automatically switches to the standby I/O card.
DeltaV control modules reference simplex and redundant I/O channels identically and there is no special configuration required to take advantage of redundancy.
Switchover of a redundant I/O card is completed within two scans of the I/O bus. Make-before-break contacts ensuredigital field instruments remain powered and the process is undisturbed. Analog output signals are briefly driven by both cards for <5 ms during switchover of the card.
Hardware alerts automatically report hardware integrity errors for both the primary and secondary cards. Any event that causes a switchover is also reported automatically through the system hardware alerts and is logged in the Event Chronicle.
Events that can cause a switchover include:
„ Hardware failure within the active card.
„ Communications failure between the active card and the controller.
„ Detection of a fault in the field wiring.