1756-OF8IH 输出模块 具有 15 位通道分辨率
【产品详情】
技术参数 1756-OF8IH
制造者 罗克韦尔自动化
品牌 艾伦-布拉德利
零件号/目录号 ¥1756-OF8IH型
系列 ControlLogix
模块类型 ControlLogix HART I/O 模块
渠道 每通道 8 个隔离差分输出和 1 个 HART 调制解调器
输入电流范围 0-20 米利亚佩雷斯,4-20 米利亚佩雷斯
过压保护 +/- 24 伏直流电
分辨率 24 毫/平方的 15 位
模块HART扫描时间 1 s w/ HART 启用(估计)
外壳类型 无(开放式)
关于1756-OF8IH
Allen-Bradley 的 1756-OF8IH ControlLogix HART 输出模块是一款输出模块,每通道具有 8 个隔离差分电流输出和 1 个 HART 调制解调器,可安装在任何 1756 I/O 机箱插槽中。1756-OF8IH 的输出范围为 0-20mA 和 4-20mA,在 24mA 电流下具有 15 位通道分辨率,在 24V DC 时估计消耗 400mA 背板电流。它在 ±24V DC 下提供具有过压保护的开路检测,并通过电子方式将输出电流限制在不大于 21mA (<=21mA) 的值来提供输出短路保护。该模块具有 50-750ï-(具有短路生存能力)的驱动能力,负载电抗为 10ïH,在启用 HART 时,其与负载相关的建立时间小于 100ms,在禁用 HART 时小于 23ms。
1756-OF8IH 在 4-20mA 时的校准精度为 0.15%,需要以 12 个月的标准时间间隔进行校准。该器件在4-20mA电流下具有±3 ppm的满量程失调漂移,增益漂移为±4 ppm,模块误差为0.3%。1756-OF8IH 采用 IEEE 32 位浮点数据格式,估计模块 HART 扫描时间为 1 秒,并使用 R-Ladder DAC 输出转换方法。它使用在 3535V DC 下测试的增强绝缘在输出到背板之间提供 250V 电压隔离,持续 60 秒,在输出到输出和输出到地之间提供 250V 电压隔离,使用在 2120V DC 下测试 60 秒的基本绝缘。其电路采用铜线,整个模块被指定为T4A(北美)和T4ATEX和EIC温度代码。1756-OF8IH 的工作温度范围为 0-60 °C,非冷凝湿度为 5-95%,环境温度为 60 °C (140 °F)。
1756-OF8IH 输出模块 具有 15 位通道分辨率
【英文介绍】
Technical parameters 1756-OF8IH
Manufacturer Rockwell Automation
Brand Allen Bradley
Part number/Catalog number ¥1756-OF8IH type
Series ControlLogix
Module Type ControlLogix HART I/O module
Channel 8 isolated differential outputs per channel and 1 HART modem
Input current range 0-20 Milia Perez, 4-20 Milia Perez
Over voltage protection +/- 24 volts DC
Resolution 24 millimetres per square of 15 bits
Module HART Scan time 1 s w/ HART enabled (estimated)
Housing type None (open)
About 1756-OF8IH
Allen-Bradley's 1756-OF8IH ControlLogix HART output module is an output module with 8 isolated differential current outputs per channel and 1 HART modem that can be installed in any 1756 I/O chassis slot. The 1756-OF8IH has an output range of 0-20mA and 4-20mA, a 15-bit channel resolution at 24mA current, and an estimated 400mA backplane current consumption at 24V DC. It provides open circuit detection with overvoltage protection at ±24V DC and provides output short-circuit protection by electronically limiting the output current to a value no greater than 21mA (<=21mA). The module has a drive capacity of 50-750i - (with short-circuit survivability), a load reactance of 10iH, and its load-related build up time is less than 100ms when HART is enabled and less than 23ms when HART is disabled.
The 1756-OF8IH has a calibration accuracy of 0.15% at 4-20mA and requires calibration at a standard time interval of 12 months. The device has a full scale offset drift of ±3 ppm at 4-20mA current, a gain drift of ±4 ppm, and a module error of 0.3%. The 1756-OF8IH uses IEEE 32-bit floating-point data format with an estimated module HART scan time of 1 second and uses the R-Ladder DAC output conversion method. It uses enhanced insulation tested at 3535V DC to provide 250V voltage isolation between output and backplane for 60 seconds, 250V voltage isolation between output to output and output to ground, and basic insulation tested at 2120V DC for 60 seconds. Its circuitry is copper wire, and the entire module is designated with T4A (North America) and T4ATEX and EIC temperature codes. The 1756-OF8IH operates from 0-60 °C, with a non-condensing humidity of 5-95% and an ambient temperature of 60 °C (140 °F).
1756-OF8IH 输出模块 具有 15 位通道分辨率
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