1769-OF4CI是一个四 (4)通道模拟电流隔离输出模块

1769-OF4CI是一个四 (4)通道模拟电流隔离输出模块

零件号为1769-OF4CI的Allen-Bradley紧凑型I/O模块是模拟输出模块，内置四(4)个差分、独立隔离通道。该模块具有0-20mA和4-20 mA的输出电流信号，全模拟电流范围分别为0-21 mA和3.2-21 mA。该模块属于1769 Compact I/O系统，设计与MicroLogix 1500和CompactLogix控制器兼容。该模块也可使用零件号为1769-ADN的DeviceNet通信适配器或零件号为1769-AENTR的以太网通信适配器安装在远程I/O机箱中。
模拟输出模块主要用于驱动zui终控制元件(FCE)或执行器，以实现多个控制点。可用的数据格式有原始/比例数据、工程单位、PID比例和满量程百分比。可配置的通道参数包括输出范围选择、模块禁止、模块描述和插槽分配。该模块为每个安装实例生成唯 一的数据表，其中包括通道地址、模块模式位、模块状态和其他运行时参数。

该模块是一个低维护模块。它具有自动校准功能，每次模块循环通电时都会执行该功能。此外，每个电源周期都会执行自测。一旦模块进入自测，模块无响应。它将自动进入活动操作，新值会主动与高低箝位设置进行比较，以防止输出超过定义的限值。

1769-OF4CI是一个四(4)通道模拟电流隔离输出模块，归入Allen-Bradley制造的CompactLogix系列。1769-OF4CI具有16位分辨率，支持百通8761屏蔽紧凑型模拟模块电缆。1769-OF4CI具有330V/位0至20mA，5V DC 165mA总线电流。该装置还具有2.0瓦的散热能力。它具有110毫秒的转换速率和大于2.9毫秒的有限电压/电流比。该模块带有一个0至500欧姆的电阻负载，并具有一个额定为0.1 mH的输出电感负载。1769-OF4CI带有静电放电，会损坏集成电路或半导体。因此，触摸本机时，请触摸接地物体，以释放静电。避免触摸总线连接器或连接器引脚，并使用防静电工作站(如果有)。不使用时，1769-OF4CI应保存在静电屏蔽盒中。
1769-OF4CI的精度为+/-0.35%，相对于温度的精度漂移为+/-0.0058% FS/摄氏度。1769-OF4CI的非线性度为+/-0.05%，重复性为+/-0.005%。它没有指定的现场校准，模块误差边界约为+/-0.55%，输出阻抗额定值小于1 MOhm。该装置还具有输出过压保护的开路和短路保护功能。它能够在大约21 mA的zui大短路电流下保持其全部操作能力。1769-OF4CI紧凑型电流输出模块的尺寸为118×35×87毫米(4.65×1.38×3.43英寸)，重量为270克(0.60磅)。

1769-OF4CI是一个四 (4)通道模拟电流隔离输出模块

The Allen-Bradley compact I/O module with part number 1769-OF4CI is an analog output module with four (4) differential, independently isolated channels built in. The module has 0-20mA and 4-20 mA output current signals with full analog current ranges of 0-21 mA and 3.2-21 mA, respectively. The module belongs to the 1769 Compact I/O system and is designed to be compatible with MicroLogix 1500 and CompactLogix controllers. The module can also be installed in a remote I/O chassis using a DeviceNet communication adapter with part number 1769-ADN or an Ethernet communication adapter with part number 1769-AENTR.
The analog output module is primarily used to drive the final control element (FCE) or actuator to achieve multiple control points. The available data formats are raw/scale data, engineering units, PID scale, and full scale percentage. Configurable channel parameters include output range selection, module disable, module description, and slot assignment. This module generates a unique data table for each installation instance that includes channel addresses, module mode bits, module status, and other runtime parameters.

This module is a low maintenance module. It has an automatic calibration function, which is performed every time the module is cyclically powered on. In addition, a self-test is performed for each power cycle. Once the module enters the self-test, the module does not respond. It automatically enters the active operation, and the new value is actively compared to the high-low clamp setting to prevent the output from exceeding the defined limit.

The 1769-OF4CI is a four (4) channel analog current isolation output module included in the CompactLogix family manufactured by Allen-Bradley. The 1769-OF4CI features 16-bit resolution and supports the Belton 8761 shielded compact analog module cable. The 1769-OF4CI has 330V/ bit 0 to 20mA, 5V DC 165mA bus current. The unit also has a cooling capacity of 2.0 watts. It has a conversion rate of 110 ms and a finite voltage/current ratio greater than 2.9 ms. The module comes with a resistive load of 0 to 500 ohms and an output inductive load rated at 0.1 mH. The 1769-OF4CI carries electrostatic discharge, which can damage integrated circuits or semiconductors. Therefore, when touching the device, touch the grounded object to release static electricity. Avoid touching bus connectors or connector pins, and use an anti-static workstation (if available). When not in use, 1769-OF4CI should be stored in an electrostatic shielding box.
1769-OF4CI has an accuracy of +/-0.35% and an accuracy drift relative to temperature of +/-0.0058% FS/ C. The nonlinearity of 1769-OF4CI is +/-0.05%, and the repeatability is +/-0.005%. It has no specified field calibration, a module error boundary of about +/-0.55%, and an output impedance rating of less than 1 MOhm. The device also has open circuit and short circuit protection for output overvoltage protection. It is able to maintain its full operating capacity at a maximum short-circuit current of approximately 21 mA. The 1769-OF4CI compact current output module measures 118 x 35 x 87 mm (4.65 x 1.38 x 3.43 inches) and weighs 270 g (0.60 lb).