1756-OF6CI ControlLogix系列a通用隔离模拟电流/电压输出模块

Allen-Bradley 1756-OF6CI模块是ControlLogix系列a通用隔离模拟电流/电压输出模块。该模块有6个可用的独立隔离电流输出。它还具有21毫安(2.7 μ a)的13位分辨率。它需要1756-TBNH或1756-TBSH可移动端子排外壳(RTB)才能安装在接地和安装的机箱中。

与1756-OF6CI模块可用的通信格式类型是整数和浮点格式。该模拟输出模块的功能包括数据回波，斜坡/速率限制，箝位/限制，箝位/限制报警，并保持初始化。该程序具有1756-OF6CI的特点。

它具有0到20毫安的范围，低信号和用户计数为0毫安和-32768个计数，高信号和用户计数为21.074毫安和32767个计数。该模块在5.1V时的电流绘制为250毫安，从0到550欧姆终止在out和rtn上，551到1000欧姆终止在out和alt上。在24V时，输出和rtn端接0至550欧姆时的电流消耗为225毫安，输出和alt端接551至1000欧姆时的电流消耗为300毫安。0 ~ 550欧姆时背板总功率为6.7 W, 551 ~ 1000欧姆时背板总功率为8.5 W。负载0 ~ 550 ω时最大功耗为5.5 W，负载551 ~ 1000 ω时最大功耗为6.1 W。它没有开路检测，但它有24V直流过压保护和短路保护，限制在21毫安或更小。常规在1350V交流下测试2 s，其连续隔离电压为250V。

1756-OF6CI模块对于整数格式的最大模块扫描时间为10 ms，对于浮点格式的最大模块扫描时间为25 ms，模块误差为范围的0.6%。在电阻负载下，其稳定时间小于2ms至最终值的95%，校准间隔为6个月，在25摄氏度下校准精度优于4至21毫安的0.1%。标称增益随温度的漂移为每摄氏度60 ppm，最大增益随温度的漂移为每摄氏度100 ppm。

1756-OF6CI

The Allen-Bradley 1756-OF6CI module is a ControlLogix Series A general purpose isolated analog current/voltage output module. This module has 6 available individually-isolated current outputs. It also has a 13-bit resolution across 21 milliamps (2.7 µA). It requires either the 1756-TBNH or 1756-TBSH removable terminal block housing (RTB) before it can be installed in a grounded and installed chassis.

Communication format types available with the 1756-OF6CI module are the integer and floating point formats. Features of this analog output module include data echo, ramping/rate limiting, clamping/limiting, clamp/limit alarms, and hold for initialization. The programs the 1756-OF6CI’s features.

It has a range of 0 to 20 milliamps with a low signal and user counts of 0 milliamps and -32768 counts and a high signal and user counts of 21.074 milliamps with 32767 counts. The current draw of this module at 5.1V is 250 milliamps from 0 to 550 ohms terminated on the OUTs and RTNs and 551 to 1000 ohms terminated on the OUTs and ALTs. At 24V, its current draw is 225 milliamps for 0 to 550 ohms terminated on the OUTs and RTNs and 300 milliamps for 551 to 1000 ohms terminated on OUTs and ALTs. It has a total backplane power of 6.7 W for 0 to 550 ohms and 8.5 W for 551 to 1000 ohms. The module has a maximum power dissipation of 5.5 W for 0 to 550 ohms loads and 6.1 W for 551 to 1000 ohms loads. It does not have open circuit detection but it does have a 24V DC overvoltage protection and a short circuit protection that is limited to 21 milliamps or less. Routine tested at 1350V AC for 2 s, its continuous isolation voltage is 250V.

The 1756-OF6CI module has a maximum module scan time of 10 ms for the integer format and 25 ms for floating point format with a module error of 0.6% of the range. Its settling time is less than 2 ms to 95% of final value with resistive loads, a calibration interval of 6 months, and a calibrated accuracy of better than 0.1% of 4 to 21 milliamps at 25 Degrees Celsius. The nominal gain drift with temperature is 60 ppm per Degree Celsius and the maximum gain drift with temperature is 100 ppm per Degree Celsius.