IS200TVIBH2B模块控制器,工控模块
用户参考可根据系统部分级别1 1图形双级别1表_ ig级别1 GFK 10-1-0898F第10章Alog输入模块Alog电压输入-4 IC693ALG220 Series 90-30可编程逻辑控制器的4-Alog电压输出模块提供四个输入，每个输入都能够将模拟输入信号转换为数字信号，以便根据应用需要使用。Alog电压输入模块能够转换-10至+10伏范围内的输入。每四秒的转换速度为一毫秒。这为任何提供了4毫秒的更新速率。转换后的sigl的分辨率为12位biry（4096分之一）。%AI寄存器中的用户数据处于16位2的补码状态。来自A/D转换器的12位在%AI数据字中的位置如下所示。模块中还提供了电压输入和来自电压输入A限制电流输入模式的缩放的数据之间的关系。每个用户终端连接器上都提供了一个跳线，可用于将250欧姆并联电阻器连接到。分流电阻器有效地提供-40至+40电流输入范围。然而，输入电流通常不应超过±20，以避免输入电阻器自发热和相应的精度损失。输入对应于电压输入模块的1至5伏输入；因此，输入sigl的分辨率大约为10位biry（1024分之一）。通过使用精确的250欧姆电阻器代替跳线，分辨率可以提高到大约11位（2048分之一）。电阻器使电压输入模块看到2至10伏的输入。模块的输入电源来自PLC电源提供的隔离+24电源。该电压通过逆变器/调节器传输，以产生模块的工作电压。该模块还消耗PLC电源+5的27。当模块电源工作时，模块面板顶部的LED亮起。该模块通过光学隔离在现场布线和背板之间提供外部产生的电隔离。为了最大限度地减少电容负载和噪声，模块的所有现场连接应使用良好等级的绞合屏蔽仪表电缆。屏蔽可以连接到COM或GND。COM连接提供对模块中的模拟的访问。GND连接提供对基板（机架接地）的访问。该模块可安装在Series 90-30 PLC系统中5或10插槽基板的任何I/O插槽中。请参阅第3-11页，以确定系统中可安装的Alog电压输入模块的数量。te将所有未使用输入的+和-端子连接在一起，以便将未使用点的模拟输入表中的任何波动降至最低。Alog输入模块10 GFK-0898F第10章–Alog输入模件10-3表10-1。Alog电压输入模块规范-IC693ALG220电压范围–10至+10伏校准工厂校准更新率4毫秒（所有四秒）分辨率绝对精度±10/40µA（典型值）超过工作温度±30/160µA超过工作温度线性度<1最低有效位隔离1500伏场侧和逻辑侧交叉抑制>80 db输入阻抗>9兆欧（电压模式）250欧姆（电流模式）输入滤波器响应17 Hz Interl功耗27来自背板上的+5伏总线98来自隔离的+24伏背板总线参考附录C了解产品标准和一般规范。两个输入必须在COM的±11伏范围内，包括输入上的任何电流。如果存在严重的射频干扰（IEC 801-3，10V/m），精度可能会降低到±100/400µA。Alog电压输入框图下图是4-Alog电压输出模块的框图。4 S a43844背板接口/隔离RY ICS S定时发电机逆变器/调节器和电压监控器PWR框架GND I GND I 24V COM JMP滤波器差动放大器250Ω 0.5W图10-3。IC693ALG220 10 10-4系列90-30 PLC I/O模块规格的Alog电压输入模块框图
User References Ailable per System section level 1 1 figure bi level 1 table_big level 1 GFK 10-1 -0898F Chapter 10 Alog Input Modules Alog Voltage Input - 4 IC693ALG220 The 4- Alog Voltage Input module for the Series 90-30 Programble Logic Controller provides four input s, each capable of converting an alog input sigl to a digital sigl for use as required by your application. The Alog Voltage Input module is capable of converting inputs in the range of –10 to +10 volts. Conversion speed for each of the four s is one millisecond. This provides an update rate of four milliseconds for any . Resolution of the converted sigl is 12 bits biry (1 part in 4096). User data in the %AI registers is in 16-bit 2’s complement fort. The placement of the 12 bits from the A/D converter in the %AI data word is shown below. The relationship between the voltage input and the data from the Scaling for Voltage Input A limited current input mode is also provided in the module. A jumper is provided on the user termil connector for each , which y be used to connect the interl 250 ohm shunt resistor into the . The shunt resistor effectively provides a –40 to +40 current input range. However, the input current should generally t exceed ±20 , to avoid self-heating of the input resistor and a corresponding loss of accuracy. A input corresponds to a 1 to 5 volt input to the voltage input module; therefore, the resolution of the input sigl is approxitely 10 bits biry (1 part in 1024). The resolution can be increased to approxitely 11 bits (1 part in 2048) by using a precision 250 ohm resistor in place of the jumper. The resistor causes the voltage input module to see a input as 2 to 10 volts. The in power source for the module is derived from the isolated +24 power supplied by the PLC power supply. This voltage is routed through an inverter/regulator to produce the operating voltages for the module. This module also consumes 27 from the +5 of the PLC power supply. An LED at the top of the module’s faceplate is ON when the module’s power supply is operating. The module provides electrical isolation of exterlly generated ise between the field wiring and the backplane through optical isolation. To minimize the capacitive loading and ise, all field connections to the module should be d using a good grade of twisted, shielded instrumentation cable. The shields can be connected to either COM or GND. The COM connection provides access to the of the alog ry in the module. The GND connection provides access to the baseplate (frame ground). This module can be installed in any I/O slot of a 5 or 10-slot baseplate in a Series 90-30 PLC system. See page 3-11 to determine the number of Alog Voltage Input modules that can be installed in a system. te Connect the + and – termils together for all unused inputs in order to minimize any fluctuations in the alog input table for the unused points. Alog Input Modules 10 GFK-0898F Chapter 10 – Alog Input Modules 10-3 Table 10-1. Specifications for Alog Voltage Input Module - IC693ALG220 Voltage Range –10 to +10 volts Calibration Factory calibrated Update Rate 4 msec (all four s) Resolution Absolute Accuracy ±10 /40 µA (typical) over operating temperature ±30 /160 µA over operating temperature Linearity < 1 Least Significant Bit Isolation 1500 volts between field side and logic side Cross- Rejection > 80 db Input Impedance > 9 Megohms (voltage mode) 250 ohms (current mode) Input Filter Response 17 Hz Interl Power Consumption 27 from +5 volt bus on the backplane 98 from the isolated +24 volt backplane bus Refer to Appendix C for product standards and general specifications. Both inputs must be within ± 11 volts of COM, including any ise present on the inputs. In the presence of severe RF interference (IEC 801-3, 10V/m), accuracy y be degraded to ±100 /400 µA. Alog Voltage Input Block Diagram The following figure is a block diagram of the 4- Alog Voltage Input Module. 4 S a43844 BACKPLANE INTERFACE/ ISOLATION RY ICS S TIMING GENERATOR INVERTER/ REGULATOR AND VOLTAGE SUPERVISOR PWR FRAME GND I GND I 24V COM JMP FILTERS DIFFERENTIAL AMPLIFIER 250 Ω 0.5W Figure 10-3. Alog Voltage Input Module Block Diagram for IC693ALG220 10 10-4 Series 90-30 PLC I/O Module Specifications –
