1756-IF8H 模拟输入模块具有8个差分输入通道

Allen-Bradley 1756-TBCH是来自ControlLogix控制器平台的模拟输入模块，该模块主要具有8个差分输入通道，兼容电压和电流信号。它还具有与高速公路可寻址远程传感器(HART)协议的额外兼容性，每个模块具有单个HART调制解调器。可配置的电流信号到1756-IF8H包括工业标准的0-20 mA和4-20 mA。电压输入信号支持+/-10VDC、0 ~ 5vdc、1 ~ 5vdc、0 ~ 10vdc。该模块的分辨率范围为16-21位，背板电流要求为300 mA @ 5.1 VDC和135 mA @ 24 VDC。它的背板总功耗为4.77瓦，而散热则根据配置的信号而变化。电压信号处理的散热为11/0 BTU / hr，电流信号处理的散热为13.7 BTU / hr。它具有5秒的开路检测时间和30 VDC和8 VDC的过压保护，分别用于电压和电流信号配置。该模块为单宽模块，在1756机箱中占用单个槽位。它可以是本地I/O或分布式I/O系统的一部分。1756-IF8H的HART扫描时间为18…如果启用HART，则为488毫秒1秒，而所有通道HART都激活，则估计扫描时间为10秒。模块直通配置和HART通信与器件通信可显著增加扫描时间。1756-IF8H使用逐次逼近作为输入转换方法，而输出转换方法是通过R-Ladder DAC，单调性，无缺失代码。

联系电话：18059884797

立即咨询在线留言

产品详情

1756-IF8H 模拟输入模块具有8个差分输入通道

【功能描述】

Allen-Bradley 1756-IF8H是HART模拟模块，属于ControlLogix系统。它需要一个36位弹簧夹紧RTB，或可移动的端子座外壳，它可以是1756-TBCH或1756-TBS6H，并与HART 5、6和7兼容。该模块有8个差分电压或电流输入，每个模块有一个HART调制解调器。这个1756-IF8H输入模块接收来自过程值变送器的信号，然后将它们转换为相应的测量值，供Logix控制器使用。1756-IF8H有三种数据格式供您选择，使用Studio 5000 Logix设计器:仅模拟，模拟和HART PV，以及模拟和HART通道。如果你想让标签的成员像非HART模拟输入模块那样排列，你应该选择模拟和HART PV格式。模拟值在标签的末尾分组在一起，使其更容易同时查看所有8个模拟值。但是，如果您希望将每个通道的状态，模拟值和设备状态分组在一个标记中，则应该按通道格式选择模拟和HART。这将使您更容易查看与现场设备相关的所有数据。

使用此模块将使您在一个模块中具有模拟和HART连接，HART命令可以作为非预定消息与1756-IF8H传输。1756-IF8H的其他功能包括多个电流和电压输入范围，实时采样，过程报警，断线检测，模块滤波器，范围内和超范围检测，速率报警和高速公路可寻址远程传感器(HART)通信。1756-IF8H模块中的每个通道具有可变的操作范围。您可以选择的范围包括-10至10伏，0至5伏，0至10伏，0至20毫安和4至20毫安，HART仪器使用后一范围。该模块的分辨率范围为16 ~ 21位。背板额定电压和电流分别为5.1伏直流、300毫安、24伏直流和135毫安，背板总功率为4.77瓦。电压功耗为3.21瓦，电流功耗为4.01瓦，最大过压保护为30v DC(电压)和8v DC(电流)。

1756-IF8H 模拟输入模块具有8个差分输入通道

The Allen-Bradley 1756-TBCH is an analog input module from the ControlLogix controller platform that primarily features eight differential input channels compatible with voltage and current signals. It also has additional compatibility with the Highway Addressable Remote Sensor (HART) protocol, with a single HART modem per module. Configurable current signals to 1756-IF8H include industry standard 0-20 mA and 4-20 mA. Voltage input signals support +/-10VDC, 0 to 5vdc, 1 to 5vdc, and 0 to 10VDC. The module has a resolution range of 16-21 bits, and the backplane current requirements are 300 mA@ 5.1VDC and 135 mA@ 24VDC. Its backplane has a total power consumption of 4.77 watts, while heat dissipation varies according to the configured signal. The heat dissipation for voltage signal processing is 11/0 BTU/hr and 13.7 BTU/hr for current signal processing. It has an open circuit detection time of 5 seconds and overvoltage protection of 30 VDC and 8 VDC for voltage and current signal configurations, respectively. The module is a single-width module and occupies a single slot in the 1756 chassis. It can be part of a local I/O or distributed I/O system. HART scan time of 1756-IF8H is 18... If HART is enabled, it is 488 ms 1 second, and with all channels HART activated, the estimated scan time is 10 seconds. Through module configuration and HART communication to device communication can significantly increase scan time. 1756-IF8H uses successive approximation as the input conversion method, while the output conversion method is via R-Ladder DAC, monotonicity, no missing code.

Allen-Bradley 1756-IF8H is a HART analog module belonging to the ControlLogix system. It requires a 36-bit spring-clamped RTB, or removable terminal block housing, which can be 1756-TBCH or 1756-TBS6H, and is compatible with HART 5, 6, and 7. The module has 8 differential voltage or current inputs, each with a HART modem. This 1756-IF8H input module receives the signals from the process value transmitter and then converts them into the corresponding measured values for use by the Logix controller. The 1756-IF8H has three data formats for you to choose from, using the Studio 5000 Logix Designer: Analog only, Analog and HART PV, and Analog and HART channels. If you want the tag members to be arranged like non-HART analog input modules, you should choose analog and HART PV formats. The analog values are grouped together at the end of the label, making it easier to see all eight analog values at once. However, if you want to group the state, analog values, and device state of each channel in a single tag, you should select analog and HART by channel format. This will make it easier for you to view all the data related to your field devices.

Using this module will allow you to have emulated and HART connections in one module, and HART commands can be transmitted with 1756-IF8H as unscheduled messages. Additional features of the 1756-IF8H include multiple current and voltage input ranges, real-time sampling, process alarm, line break detection, module filters, in-range and out-of-range detection, rate alarm, and highway addressable remote Sensor (HART) communication. Each channel in the 1756-IF8H module has a variable operating range. The range you can choose from includes -10 to 10 volts, 0 to 5 volts, 0 to 10 volts, 0 to 20 MA and 4 to 20 mA, with HART instruments using the latter range. The resolution of the module ranges from 16 to 21 bits. The backplane is rated at 5.1 V DC, 300 mA, 24 V DC and 135 mA, respectively, for a total power of 4.77 watts. Voltage consumption is 3.21 watts, current consumption is 4.01 watts, and maximum overvoltage protection is 30v DC(voltage) and 8v DC(current).