>>>>>型号:1756-IF16 模拟量输入模块 该模块接受电流和电压信号
【功能描述】
Allen-Bradley 1756-IF16 是一款 ControlLogix 模拟量输入模块。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。在支持的接线配置中，单端接线对噪声最敏感，必须与具有公共接地的信号一起使用。为了提高噪声敏感性，在需要相对于输入信号快速更新数据的系统中使用差分布线方法，而高速差分布线则使用差分布线。
通过单端接线，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，该模块被简化为八 （8） 通道模拟输入模块。此外，当模块作为高速差分接线接线连接时，该模块将成为四 （4） 通道模拟输入模块。
1756-IF16 的单个分辨率为 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，例如单端为 16-488 毫秒;8-244 ms（差分接线）和 5-122 ms（高速差分接线）。它具有使用 Sigma-Delta 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量程的 0.05% 和电流输入量程的 0.15%。
>>>>>型号:1756-IF16 模拟量输入模块 该模块接受电流和电压信号
【英文介绍】
The Allen-Bradley 1756-IF16 is a ControlLogix analog input module. The module accepts current and voltage signals such as ±10V, 0-10V, 0-5V 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 sensitive to noise and must be used with a signal with common ground. In order to improve noise sensitivity, differential wiring methods are used in systems where data needs to be updated quickly relative to the input signal, while high-speed differential wiring uses differential wiring.
With single-ended wiring, the module becomes a sixteen (16) channel analog input module. Again, when used with differential wiring, the module is reduced to an eight (8) channel analog input module. In addition, when the module is connected as a high-speed differential wiring, the module will become a four (4) channel analog input module.
The 1756-IF16 has a single resolution of 320 μV/ count (15-bit + sign bipolar) @ ±10.25V input range; 160 μV/ Count (16 bits) @ 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 scanning time of the module varies, for example 16-488 milliseconds for a single end; 8-244 ms (differential connection) and 5-122 ms (high-speed differential connection). 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's calibration accuracy is better than 0.05% of the voltage input range and 0.15% of the current input range.
>>>>>型号:1756-IF16 模拟量输入模块 该模块接受电流和电压信号
