1756-IF4FXOF2 模拟组合 I/O 模块 具有 4 个高速亚毫秒差分输入

【产品详情】

Allen-Bradley 1756-IF4FXOF2F 是一款模拟组合 I/O 模块。该模块属于 ControlLogix 系统，该系统与 1756 ControlLogix 机箱兼容，需要 1756-TBS6H 或 1756-TBCH 可拆卸接线端子外壳 （RTB）。该模块具有 4 个高速亚毫秒差分输入和 2 个高速电压或电流输出。该模块有一个显示屏，可显示模块运行状况和运行状态，例如校准模式。1756-IF4FXOF2F 的输入范围为 +/-10 伏、0 至 10 伏、0 至 5 伏和 0 至 20 毫安，当模块超过这些范围时，会发出超量程指示。过压保护电压为 30 伏直流电，电流为 8 伏交流/直流电。其开路检测可在 1 秒内获得正满量程读数。

该模块的输出范围为 +/-10 伏，0 至 20 毫安，并具有短路保护，电子电流限制为 21 毫安或更低。它还具有 24 伏直流过压保护和开路检测功能，但仅限于电流输出（请注意，输出必须设置为大于 0.1 毫安）。1756-IF4FXOF2F 的背板额定电压和电流分别为 375 毫安（5.1 伏直流）和 100 毫安（24 伏直流），模拟输入和输出均为 -10 至 10 伏和 4 至 20 毫安。该模块的功耗为 4.3 瓦，电压耗散为 4.3 瓦，电流耗散为 4.7 瓦。电压和电流的散热分别为 14.66 BTU/小时和 16.02 BTU/小时。它在 5.1 伏时的电流消耗为 375 毫安，在 24 伏时为 100 毫安。它还具有 300 微秒扫描时间的更新周期，并具有亚毫秒级通道扫描和跨多个模块的同步采样功能。

Allen-Bradley 1756-IF4FXOF2F 是一款 ControlLogix 高速模拟组合模块。该模块具有四 （4） 个 4 个高速、亚毫秒级差分输入，兼容接收 10V、0 至 10V、0 至 5V 和 0 至 20 mA ±信号范围。它为每个模拟输入通道集成了超量程和欠量程指示。它还配备了两 （2） 个高速电压或电流，输出范围为 ± 10V 和 0 至 20 mA。

该模块的输入通道通过逐次逼近方法转换接收到的模拟信号，转换分辨率为 14 位（±10.5V）和 12 位（21 mA）。它的重复性为 ±1 最低有效位 （LSB），需要 12 个月的校准间隔。模拟输入适用于测量模拟过程变量，如流量、液位、压力、温度、粘度、pH值、浊度、速度和许多其他过程变量。

该模块的输出通道在21 mA = 2.8 μA/位范围内具有13位输出分辨率，在21.8V = 1.3 mV/位范围内具有14位输出分辨率。输出通道转换通过R-Ladder DAC转换方式进行，无失码。该模块的输出模拟信号可用于命令用于控制阀、变频驱动器、阻尼器、百叶窗、信号转换器和传感器的调制动作。它还可用于重新传输信号，供指示器、记录器和其他设备使用。该模块的模拟输出可以链接到手动控制命令、算术运算或比例积分微分 （PID） 控制器的控制输出。

1756-IF4FXOF2 模拟组合 I/O 模块 具有 4 个高速亚毫秒差分输入

【英文介绍】

The Allen-Bradley 1756-IF4FXOF2F is an analog composite I/O module. The module belongs to the ControlLogix system, which is compatible with the 1756 ControlLogix chassis and requires a 1756-TBS6H or 1756-TBCH detachable terminal housing (RTB). The module has 4 high-speed submillisecond differential inputs and 2 high-speed voltage or current outputs. The module has a display that shows module health and operating status, such as calibration mode. The 1756-IF4FXOF2F has input ranges of +/-10 volts, 0 to 10 volts, 0 to 5 volts, and 0 to 20 MA, and an overrange indication is issued when the module exceeds these ranges. The overvoltage protection voltage is 30 volts DC and the current is 8 volts AC/DC. Its open-circuit detection can obtain a positive full-scale reading in less than 1 second.

The module has an output range of +/-10 volts, 0 to 20 mA, with short circuit protection and electronic current limitation of 21 MA or less. It also has 24 volt DC overvoltage protection and open circuit detection, but only for current output (note that the output must be set to greater than 0.1 mA). The backplane of the 1756-IF4FXOF2F is rated at 375 mA (5.1 V DC) and 100 mA (24 V DC), respectively, with analog inputs and outputs of -10 to 10 volts and 4 to 20 mA. The module has a power consumption of 4.3 watts, a voltage dissipation of 4.3 watts, and a current dissipation of 4.7 watts. The heat dissipation of voltage and current is 14.66 BTU/ hour and 16.02 BTU/ hour respectively. It has a current consumption of 375 mah at 5.1 volts and 100 mah at 24 volts. It also has an update cycle of 300 microsecond scan times and features sub-millisecond channel scanning and synchronous sampling across multiple modules.

The Allen-Bradley 1756-IF4FXOF2F is a ControlLogix high-speed analog combination module. The module features four (4) four-speed, submillisecond differential inputs compatible to receive 10V, 0 to 10V, 0 to 5V, and 0 to 20 mA ± signal ranges. It integrates overrange and underrange indications for each analog input channel. It is also equipped with two (2) high-speed voltages or currents with an output range of ± 10V and 0 to 20 mA.

The input channel of the module converts the received analog signal by a successive approximation method with a resolution of 14 bits (±10.5V) and 12 bits (21 mA). It has a repeatability of ±1 least significant bit (LSB) and requires a calibration interval of 12 months. Analog inputs are suitable for measuring simulated process variables such as flow, level, pressure, temperature, viscosity, pH, turbidity, velocity, and many other process variables.

The module's output channel has a 13-bit output resolution in the 21 mA = 2.8 μA/ bit range and a 14-bit output resolution in the 21.8V = 1.3 mV/ bit range. The output channel is converted using R-Ladder DAC without code loss. The output analog signal of the module can be used to command the modulation action for controlling valves, variable frequency drivers, dampers, blinds, signal converters and sensors. It can also be used to retransmit signals for use by indicators, recorders and other devices. The analog output of the module can be linked to manual control commands, arithmetic operations, or the control output of a proportional integral differential (PID) controller.

1756-IF4FXOF2 模拟组合 I/O 模块 具有 4 个高速亚毫秒差分输入

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