Allen-Bradley 1756-IRT6I 是一款 ControlLogix 模拟输入模块

Allen-Bradley 1756-IRT6I 是一款 ControlLogix 模拟输入模块

Allen-Bradley 1756-IRT6I  模块是一款高分辨率模拟 I/O 模块。特别是，它是一个八（8）点隔离温度传感模块，与RTD，热电偶和毫伏信号兼容。该模块是 ControlLogix 系统的一部分，需要 36 针 RTB 或可拆卸接线端子 （RTB）。兼容的RTB是1756-TBCH或1756-TBS6H。它有 2 个用于热电偶的 CJC 传感器。CJC 传感器精度为 +/- 0.3 摄氏度，模块的通道采样率仅由 RPI 值决定，因为 1756-IRT8I 不提供 RTS 参数。此外，为热电偶输入配置的通道在模块电源循环时执行引线电阻自校准。1756-IRT8I 模块的功能包括多个模块输入范围、陷波滤波器、欠量程/超量程检测、数字滤波器、过程报警、速率报警、传感器偏移、10 欧姆铜偏移、断线检测、温度单位、传感器类型、热电偶线长补偿、同步采样和冷端补偿。

1756-IRT6I 具有多个输入范围，即 1 至 500 欧姆、2 至 1000 欧姆、4 至 2000 欧姆、8 至 4000 欧姆和 -100 至 100 毫伏。它支持 24 位分辨率，范围为 0 至 510 欧姆，每次计数 0.06 毫欧，0 至 1020 欧姆，每次计数 0.12 毫欧，0 至 2040 欧姆，每次计数 0.25 毫欧，0 至 4080 欧姆，每次计数 0.50 毫欧，以及 -101 至 101 毫伏，每次计数 0.01 微伏。支持的 RTD 传感器包括 100、200、500、1000 欧姆铂、alpha=385、100、200、500、1000 欧姆铂、alpha=3916、120 欧姆镍、alpha 672、100、120、200、500 欧姆镍、alpha=618 和 10 欧姆铜（alpha=427）。模块的RTD激励电流为600微安。该模块的热电偶类型为B、C、D、E、J、K、N、R、S、T和TXK/XK （L）。其热电偶线性化为ITS-90。该模块的开路检测时间为热电偶输入和3线RTD输入的2秒，4线RTD输入的开路检测时间为5秒。应该注意的是，当电线同时与同一通道上的 INx/RTD C 和 INx/RTD D 端子断开连接时，没有开路检测（x 表示通道号）。模块具有噪声抑制功能。在正常模式下，它在 60 赫兹时为 75 dB。在共模期间，60 赫兹 1000 欧姆差分为 125 dB，50 赫兹 1000 欧姆差分为 120 dB，600 伏 100 欧姆差分为 160 dB。

Allen-Bradley 1756-IRT6I 是一款 ControlLogix 模拟输入模块，具有八 （8） 个通道，可配置为电阻温度检测器 （RTD）、热电偶和毫伏输入。

Allen-Bradley 1756-IRT6I 是一款 ControlLogix 模拟输入模块

The Allen-Bradley 1756-IRT6I module is a high-resolution analog I/O module. In particular, it is an eight (8) point isolated temperature sensing module that is compatible with RTD, thermocouple and millivolt signals. This module is part of the ControlLogix system and requires 36-pin RTB or removable terminal (RTB). Compatible RTB is 1756-TBCH or 1756-TBS6H. It has 2 CJC sensors for thermocouples. The CJC sensor has an accuracy of +/- 0.3 degrees Celsius, and the module's channel sampling rate is determined only by the RPI value, as the 1756-IRT8I does not provide RTS parameters. In addition, the channel configured for the thermocouple input performs lead resistance self-calibration during module power cycle. The 1756-IRT8I module features multiple module input ranges, notch filters, underrange/overrange detection, digital filters, process alarm, rate alarm, sensor offset, 10 ohm copper offset, line break detection, temperature unit, sensor type, thermocouple line length compensation, synchronous sampling, and cold end compensation.

The 1756-IRT6I has multiple input ranges, namely 1 to 500 ohms, 2 to 1000 ohms, 4 to 2000 ohms, 8 to 4000 ohms, and -100 to 100 millivolts. It supports 24-bit resolutions ranging from 0 to 510 ohms at 0.06 milliohm per count, 0 to 1020 ohms at 0.12 milliohm per count, 0 to 2040 ohms at 0.25 milliohm per count, 0 to 4080 ohms at 0.50 milliohm per count, and 0 to 4080 ohms at 0.50 milliohm per count. And -101 to 101 millivolts, each count is 0.01 microvolts. Supported RTD sensors include 100, 200, 500, 1000 ohplatin, alpha=385, 100, 200, 500, 1000 ohplatin, alpha=3916, 120 ohnickel, alpha 672, 100, 120, 200, 500 Ohmic nickel, alpha=618, and 10 ohmic copper (alpha=427). The RTD excitation current of the module is 600 microamps. The thermocouple types of this module are B, C, D, E, J, K, N, R, S, T, and TXK/XK (L). ITS thermocouple is linearized to ITS-90. The open circuit detection time of the module is 2 seconds for thermocouple input and 3-wire RTD input, and 5 seconds for 4-wire RTD input. It should be noted that when the wire is disconnected from the INx/RTD C and INx/RTD D terminals on the same channel at the same time, there is no open circuit detection (x indicates the channel number). The module has noise suppression function. In normal mode, it is 75 dB at 60 Hz. During common mode, the 60 Hz 1000 ohm difference is 125 dB, the 50 Hz 1000 ohm difference is 120 dB, and the 600 volt 100 ohm difference is 160 dB.

The Allen-Bradley 1756-IRT6I is a ControlLogix analog input module with eight (8) channels that can be configured as a resistance temperature detector (RTD), thermocouple, and millivolt input.

Allen-Bradley 1756-IRT6I 是一款 ControlLogix 模拟输入模块

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