产品详细说明
IC694ALG233输入模块是模拟电流输入模块。该输入模块提供16个单端输入通道。当安装在危险场所时,IC694ALG233输入模块的电源必须在更换或接线前关闭。此外,除非主系统电源已经关闭,否则模块不应连接到PLC或从PLC断开。IC694ALG233输入模块从系统背板上的+5伏DC总线获取120毫安的电流。除回路电流外,IC694ALG233输入模块还从24伏DC额定外部电源汲取65毫安电流。IC694ALG233输入模块可承受的外部电源纹波为±10%。外部电源的电压范围为20至30伏DC。额定输入低通滤波器响应为23赫兹。
IC694ALG233输入模块共有16个通道,每个通道可配置以下输入范围:0至20毫安、4至20毫安增强和4至20毫安正常。警报上限和下限也可以通过软件进行配置。对于4至20毫安的增强电流范围,可配置低报警限值,用于检测4至20毫安之间的输入电流。该特性可用于在额定电流为4至20毫安的应用中提供开路检测。IC694ALG233输入模块还使用分配的程序参考地址向系统CPU报告模块状态和外部电源状态。IC694ALG233输入模块可以安装在带有串行连接器的I/O插槽中。IC694ALG233输入模块支持热插拔。IC694ALG233输入模块上的固件可以升级以启用新功能。
IC694ALG233
The IC694ALG233 input module is an analog current input module. This input module provides 16 single-ended input channels. When installed in hazardous locations, the power to the IC694ALG233 input module must be turned off before it is replaced or wired. Furthermore, the module should not be connected to or disconnected from a PLC unless the main system power has been switched off. The IC694ALG233 input module draws 120 milliamps of current from the +5 Volts DC bus on the system backplane. In addition to loop currents, the IC694ALG233 input module draws 65 milliamps of current from a 24 Volts DC rated external supply. The external voltage supply ripple which the IC694ALG233 input module can tolerate is 10%. The voltage range for the external supply is 20 to 30 Volts DC. The rated input low-pass filter response is 23 Hertz.
There are 16 channels total on the IC694ALG233 input module and each channel can be configured with the following input ranges: 0 to 20 milliamps, 4 to 20 milliamps enhanced, and 4 to 20 milliamps normal. High and low alarm limits can also be configured through software. For the 4 to 20 milliamps enhanced current range, a low alarm limit can be configured for the detection of an input current between 4 and 20 milliamps. This feature can be used to provide open-wire detection in 4 to 20 milliamps enhanced current rated applications. The IC694ALG233 input module also reports the module status and external power supply status to the system CPU by using the assigned program reference addresses. The IC694ALG233 input module can be installed in I/O slots that come with a serial connector. The IC694ALG233 input module supports hot removal and insertion. The firmware on the IC694ALG233 input module can be upgraded to enable new features.
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