模拟量输入模块 PLC工控及自动化数控系统1756-IF16

Allen-Bradley 1756-IF16 是一款 ControlLogix 模拟输入模块。该模块接受电流和电压信号，例如±10V、0-10V、0-5V和0-20 mA。该模块支持三（3）种类型的信号接线配置，例如单端、差分和高速差分接线。在支持的布线配置中，单端布线对噪声最敏感，必须与具有公共接地的信号一起使用。为了增加噪声敏感性，使用差分接线方法，而在需要相对于输入信号快速更新数据的系统中使用高速差分布线。

通过单端布线，该模块成为十六（16）通道模拟输入模块。同样，当与差分接线一起使用时，该模块减少为八（8）通道模拟输入模块。此外，当模块作为高速差分接线接线时，该模块成为四（4）通道模拟输入模块。

1756-IF16 独立分辨率为 320 μV/计数（15 位 + 符号双极性）@ ±10.25V 输入范围;160 μV/计数（16 位） @ 0-10.25V 输入范围;80 μV/计数（16 位）@ 0-5.125V 输入范围和 0.32 μA/计数（16 位）@ 0-20.5 mA。该模块的扫描时间各不相同，例如单端扫描时间为16-488 ms;8-244 ms（差分接线）和 5-122 ms（高速差分接线）。它具有使用Σ-Δ方法的内置模数转换器电路。转换后的数据按照整数模式（左对齐，2 秒补码）IEEE 32 位浮点数据格式存储。该模块的校准精度优于电压输入范围的0.05%和电流输入范围的0.15%。

A-B 1756-IF16 是由 Rockwell Automation 公司（常简称为 A-B，也是 Allen-Bradley 的一部分）生产的模拟输入模块，通常用于其 ControlLogix 系列可编程控制器（PLC）中。以下是关于 A-B 1756-IF16 模拟输入模块的一些基本特性和功能：通道数目：1756-IF16 模块具有16个模拟输入通道，可以同时读取多个模拟信号。输入类型：该模块支持多种模拟输入信号类型，包括电压、电流、电阻等，具体取决于配置和应用需求。分辨率：模块的分辨率决定了其能够提供的信号精度。通常来说，分辨率越高，模块能够捕获的信号细节就越丰富。采样速率：1756-IF16 模块具有一定的采样速率，用于对输入信号进行周期性的采样和更新。通信接口：该模块通常通过 ControlLogix 控制器的背板与 PLC 进行通信，以将采集到的模拟输入数据传输给 PLC 进行处理。配置和监控：模块通常具有配置软件和监控功能，使用户能够对输入通道进行配置、校准和监视。适用范围：A-B 1756-IF16 模拟输入模块通常应用于需要对外部模拟信号进行采集和监测的工业自动化系统中，例如监测温度、压力、流量等参数的应用。总的来说，A-B 1756-IF16 模拟输入模块是一种功能强大的工业控制设备，用于采集和监测各种模拟信号，并将其集成到 ControlLogix PLC 控制系统中，以实现工业自动化应用的控制和监控。

1756-IF16A

The Allen-Bradley 1756-IF16 is a ControlLogix analog input module. The module accepts current and voltage signals such as ±10 V, 0-10 V, 0-5 V, and 0-20 mA. The module supports three (3) types of signal wiring configurations such as single-ended, differential, and high-speed differential wiring. Of the supported wiring configurations, single-ended wiring is the most noise sensitive and must be used with signals that have a common ground. To increase noise sensitivity, differential wiring methods are used, while high-speed differential wiring is used in systems that require fast data updates relative to the input signal.

With single-ended wiring, the module becomes a sixteen (16) channel analog input module. Similarly, when used with differential wiring, the module is reduced to an eight (8) channel analog input module. Additionally, when the module is wired as a high-speed differential, the module becomes a four (4) channel analog input module.

The 1756-IF16 has individual resolutions of 320 μV/count (15-bit + signed bipolar) @ ±10.25V input range; 160 μV/count (16-bit) @ 0-10.25V input range; 80 μV/count (16-bit) @ 0-5.125V input range, and 0.32 μA/count (16-bit) @ 0-20.5 mA. The module’s scan times vary, such as single-ended, single-ended, single-channel inputs. Scan times vary, for example, 16-488 ms for single-ended scan times; 8-244 ms (differential wiring) and 5-122 ms (high-speed differential wiring). It has a built-in analog-to-digital converter circuit using the sigma-delta method. The converted data is stored in integer mode (left-justified, 2-second complement) IEEE 32-bit floating-point data format. The module is calibrated to better than 0.05% of the voltage input range and 0.15% of the current input range.

The A-B 1756-IF16 is an analog input module manufactured by Rockwell Automation (often referred to simply as A-B and part of Allen-Bradley) and is commonly used in their ControlLogix family of programmable controllers (PLCs). Here are some basic features and functions about the A-B 1756-IF16 Analog Input Module: Number of Channels: The 1756-IF16 module has 16 analog input channels that can read multiple analog signals simultaneously. Input Type: The module supports a variety of analog input signal types, including voltage, current, resistance, etc., depending on the configuration and application requirements. Resolution: The resolution of the module determines the signal accuracy it can provide. Generally speaking, the higher the resolution, the richer the signal details the module can capture. Sampling Rate: The 1756-IF16 module has a certain sampling rate, which is used to periodically sample and update the input signal. Communication Interface: The module typically communicates with the PLC through the backplane of the ControlLogix controller to transmit the captured analog input data to the PLC for processing. Configuration and Monitoring: The module typically has configuration software and monitoring capabilities that allow the user to configure, calibrate, and monitor the input channels. Scope of Application: The A-B 1756-IF16 analog input module is typically used in industrial automation systems where external analog signals need to be captured and monitored, such as applications that monitor temperature, pressure, flow, and other parameters. Overall, the A-B 1756-IF16 Analog Input Module is a powerful industrial control device for acquiring and monitoring a variety of analog signals and integrating them into ControlLogix PLC control systems for control and monitoring of industrial automation applications.