1756-IF4FXOF2F 高速模拟量I/O模块  接口模块

1756-IF4FXOF2F高速模拟量 I/O 模块

1756-IF4FXOF2F ControlLogix高速模拟量I/O模块是一种接口模块，可将输入端的模拟量信号转换为数字值，也可将输出端的数字值转换为模拟量信号。该模块采用生产者/消费者网络模型，1756-IF4FXOF2F在提供附加系统功能的同时还可根据需要生成信息。

以下是模块的部分可用功能:

。输入同步―该功能可同步同一机架中的多个快速模拟量模块间

的输入采样，可使这些输入在几毫秒内以相同的速率相互采样。如需了解更多信息，请参见第45页的“同步模块输入”。

。组合模块提供4个差分输入和2个输出

。亚毫秒级输入采样

.一毫秒输出更新。板载报警和标度。带电插拔(RIUP)。生产者/消费者通信

。数据滚动时间戳(以毫秒为单位)

。数据的协调系统时间(CST)时间戳(以毫秒为单位)。IEEE32位浮点

。I类/2区、UL、CSA、CE及C-Tick代理认证

1756-IF4FXOF2F ControlLogix高速模拟量I/O模块的性能特性会有所差异，具体取决于模块运行于本地机架还是远程机架。远程机架中的模块性能受到限制。网络无法高效适配模块的最快刷新速率，因为数据广播量需要占用网络的大部分带宽。为实现最大模块性能，建议您在本地机架中使用模块。

1756-IF4FXOF2F 高速模拟量I/O模块  接口模块

1756-IF4FXOF2F High speed analog I/O module

The 1756-IF4FXOF2F ControlLogix high-speed analog I/O module is an interface module that can convert analog signals at the input end to digital values, and can also convert digital values at the output end to analog signals. The module adopts the producer/consumer network model, 1756-IF4FXOF2F, which provides additional system functions while also generating information as required.

Here are some of the available features of the module:

. Input synchronization - This feature synchronizes multiple fast analog modules in the same rack

Sample the inputs so that they sample each other at the same rate for a few milliseconds. For more information, see "Synchronizing Module Inputs" on page 45.

. The combined module provides 4 differential inputs and 2 outputs

. Submillisecond input sampling

.One millisecond output update. Onboard alarm and scaling. Live plug (RIUP). Producer/consumer communication

. Data scroll timestamp (in milliseconds)

. The Coordinated System Time (CST) timestamp of the data in milliseconds. Ieee32-bit floating point

. Category I/Zone 2, UL, CSA, CE, and C-Tick agent certification

The performance characteristics of the 1756-IF4FXOF2F ControlLogix High speed analog I/O module vary depending on whether the module is running in a local or remote rack. Module performance in the remote rack is limited. The network cannot efficiently adapt the fastest refresh rate of the module because the data broadcast volume needs to occupy most of the bandwidth of the network. For maximum module performance, it is recommended that you use modules in your local rack.