1769-OF2 是一款紧凑型I/O模拟输出模块

Allen-Bradley 1769-OF2 是一款两 （2） 通道模拟输出模块。该模块是一个单槽宽度的模块，每个通道能够提供模拟电压和电流信号，例如 ± 10VDC、0 至 10VDC、0 至 5VDC、1 至 5VDC 以及 0-20 mA 和 4-20 mA。该输出模块可用于驱动调制设备，将模拟数据重新传输到另一个接收元件，如面板仪表和数据记录器，以及作为信号隔离器和分路器的输入。

1769-OF2 具有两 （2） 个单端输出通道，带有 Σ-Δ 数模 （DAC） 转换器。根据配置的输出信号，模块的分辨率为 ±10V dc：符号 + 14 位，0.64 mV 0 至 +5V dc：符号 + 13 位，0.64 mV 0 至 +10V dc：符号 + 14 位，0.64 mV +4 至 +20 mA：符号 + 14 位，1.28 μA +1 至 +5V 直流：符号 + 13 位，0.64 mV 0 至 +20 mA： 符号 + 14 位，1.28 μA。 总体而言，全范围的数字分辨率为 14 位（单极性）;14 位加符号（双极性），转换速率 2.5 ms，步进响应 2.9 ms。 1769-OF2 输出可链接到 Proprotional + 积分 + 微分 （PID） 控制器，用于实现模拟控制环路的手动和自动控制。

如果与 CompactLogix 版本 20 一起使用。

1769-OF2 的电流负载为 10 mA，静性负载导通电流输出为 0 至 500 ？（包括导线电阻）。它的负载电压输出范围大于 1 k ？在 10 V DC 和 0.1 mH 电流输出的感性负载下。1769-OF2 的每输出电压的容性负载为 1 μF。它不需要现场校准，精度裕度为 ±0.5%（25 摄氏度或 77 华氏度的电压全量程）和 ±0.35%（25 摄氏度（77 华氏度）的电流全量程）。1769-OF2紧凑型电压/电流输出模块的模块误差边界约为0.8%，精度漂移为每摄氏度±0.0086%。输出模块还具有±0.05%的重复性和非线性裕量，输出阻抗为15？。

1769-OF2 具有 ±0.05% 的失调误差裕度和 10ms 的检测断路时间。它配备了短路（最大 21 mA）和过压保护。它有一根铜线，实心尺寸为 22 x 14 AWG，宽度为单槽。1769-OF2 的重量为 0.65 磅，尺寸为 4.65 x 1.38 x 3.43 英寸。

1769-OF2 是一款紧凑型I/O模拟输出模块

Allen-Bradley 1769-OF2 is a two (2) channel analog output module. The module is a single slot width module with each channel capable of providing analog voltage and current signals such as ± 10VDC, 0 to 10VDC, 0 to 5VDC, 1 to 5VDC, and 0-20 mA and 4-20 mA. This output module can be used to drive modulation devices, retransmit analog data to another receiving element, such as panel meters and data loggers, and as an input to signal isolators and splitters.

The 1769-OF2 has two (2) single-ended output channels with a Σ-Δ digital-to-analog (DAC) converter. Depending on the configured output signal, the resolution of the module is ±10V dc: symbol + 14 bits, 0.64mV 0 to +5V dc: symbol + 13 bits, 0.64mV 0 to +10V dc: symbol + 14 bits, 0.64mV +4 to +20 mA: Symbol + 14 bits, 1.28μA +1 to +5V DC: Symbol + 13 bits, 0.64mV 0 to +20 mA: symbol + 14 bits, 1.28μA. Overall, the digital resolution for the full range is 14 bits (unipolar); 14-bit plus sign (bipolar), conversion rate 2.5 ms, step response 2.9 ms. The 1769-OF2 output can be linked to the Proprotional + Integral + differential (PID) controller for manual and automatic control of the analog control loop.

If used with CompactLogix version 20.

1769-OF2 has a current load of 10 mA and a static load conduction current output of 0 to 500? (including wire resistance). Its load voltage output range is greater than 1 k? Under inductive load of 10 V DC and 0.1 mH current output. The capacitive load of 1769-OF2 is 1 μF per output voltage. It requires no field calibration and has an accuracy margin of ±0.5% (full range of voltage at 25 ° C or 77 ° F) and ±0.35% (full range of current at 25 ° C (77 ° F)). The 1769-OF2 compact voltage/current output module has a module error boundary of about 0.8% and an accuracy drift of ±0.0086% per degree Celsius. The output module also has a ±0.05% repeatability and nonlinearity margin with an output impedance of 15? .

1769-OF2 has an offset error margin of ±0.05% and a detection break time of 10ms. It is equipped with short circuit (up to 21 mA) and overvoltage protection. It has a copper wire with a solid dimension of 22 x 14 AWG and a single slot width. The 1769-OF2 weighs 0.65 pounds and measures 4.65 x 1.38 x 3.43 inches.