IS200GGXIG1 IS200GGXIG1AFE工业卡件,DCS模块卡件
•• 如果输入读数至少相差满量程的0.5%，并且至少持续256个输入样本，则故障概率增加。表54 3708E热电偶输入规格特性规格颜色代码深黄色热电偶类型支持J、K、T、E打开检测上限、下限（三站配置）输入信号数量16差分、隔离输入更新率50 ms最大支持热电偶类型和温度范围的精度见表，第141页3708E精度。输入电阻（负载）最小30 MΩ（DC）输入点保护110 VAC连续无损坏噪声抑制：共模-100 dB@DC最小值-90 dB@60 Hz最小值噪声抑制：正常模式-3 dB@8 Hz典型值-17 dB@60赫兹典型值共模范围±200 VDC最大值（信道到信道或信道到地）信道到信道隔离20 kΩ，典型参考结补偿范围32°至140°F（0°至60°C）状态指示器：模块状态通过、故障、，活动状态指示器：冷接点传感器状态CJ（开=CJ故障）输入诊断故障覆盖率最小输入变化0.5%满量程输入变化采样周期50 ms最小错误比较周期256个采样逻辑功率<15瓦热电偶输入模块141 Tricon v9–v10系统规划和安装指南3708E精度精度规格说明了错误但不考虑温度传感器和热电偶终端之间的温度梯度引起的误差。客户负责保持热电偶终端模块的温度均匀。表55 3708E型热电偶TC型温度范围精度@32°至140°F（0°至60°C）Ta=77°F（25°C）Ta=32°至40°F（0-60°C）典型最大HART接口模块本节介绍了适用于Tricon v10.4或更高版本系统的HART接口模块。HART是一种工业标准现场总线，将频率键移（FSK）信号叠加到4-20 mA回路上。每个HART接口模块中的Tricon 2071H HART多路复用器模块将HART信号电容耦合至AI或AO信号。在1200和2200 Hz时，HART信号约为±0.5 mA。这些频率足够高，使得低带宽环路不受影响，HART电子设备可以容易地施加和提取HART信号。通过HART多路复用器进行的HART通信与Tricon系统分离，经认证不会干扰模拟输入和模拟输出模块的4-20 mA安全信号。有关安装信息，请参阅第195页的《在8121型增强型低密度扩展机箱中安装HART接口模块》和第199页的《从v6-v8升级的系统中安装HART界面模块》。HART通信的底盘要求只有Tricon v10.4.x及更高版本的系统可以使用HART接口模块；早期的Tricon系统必须升级到Tricon v10.4.x。升级到Trion v10.4.x的系统中使用HART接口模块的底盘要求因原始系统版本而异，如本表所述。 If the input readings differ by a minimum of 0.5 percent of full scale and continue for a minimum period of 256 input samples, the probability of a fault increases. Table 54 3708E Thermocouple Input Specifications Feature Specification Color code Deep yellow Thermocouple types supported J, K, T, E Open detect Upscale, Downscale, (TriStation-configured) Number of input signals 16 differential, isolated Input update rate 50 ms maximum Accuracy of thermocouple types and temperature ranges supported See table, 3708E Accuracy on page 141. Input resistance (load) 30 MΩ (DC) minimum Input point protection 110 VAC continuous without damage Noise rejection: Common mode -100 dB @ DC minimum -90 dB @ 60 Hz minimum Noise rejection: Normal mode -3 dB @ 8 Hz typical -17 dB @ 60 Hz typical Common mode range ±200 VDC maximum (channel-to-channel or channel-to-ground) Channel-to-channel isolation 20 kΩ, typical Reference-junction compensation range 32° to 140° F (0° to 60° C) Status indicator: Module status Pass, Fault, Active Status indicator: Cold Junction sensor status CJ (On = CJ Fault) Input diagnostic fault coverage Minimum input change 0.5% of full scale Input change sample period 50 ms Minimum period of mis-compares 256 samples Logic power < 15 watts Thermocouple Input Modules 141 Planning and Installation Guide for Tricon v9–v10 Systems 3708E Accuracy Accuracy specifications account for errors related to reference-junction compensation but do not account for errors caused by temperature gradients between the temperature transducers and thermocouple terminations. The customer is responsible for maintaining a uniform temperature across the thermocouple termination module. Table 55 Accuracy of Model 3708E Thermocouple Types TC Type Temperature Range Accuracy @ 32° to 140° F (0° to 60° C) Ta=77° F (25° C) Ta=32°to 140° F (0-60° C) Typical Maximum HART Interface Modules This section describes HART interface modules available for use with Tricon v10.4 or later systems. HART is an industry standard field bus that superimposes a Frequency Key Shifted (FSK) signal onto the 4-20 mA loop. The Tricon 2071H HART Multiplexer Module that is incorporated into each of the HART Interface Modules capacitively couples the HART signal to the AI or AO signals. The HART signals are approximately ±0.5 mA at 1200 and 2200 Hz. These frequencies are high enough that the low-bandwidth loop is unaffected and the HART electronics can impose and extract the HART signals easily. HART communication through the HART multiplexer is separate from the Tricon system and is certified not to interfere with the 4-20 mA safety signals of the Analog Input and Analog Output modules. For installation information, see Installing HART Interface Modules in the Model 8121 Enhanced Low Density Expansion Chassis on page 195 and Installing HART Interface Modules in Systems Upgraded from v6–v8 on page 199. Chassis Requirements for HART Communication Only Tricon v10.4.x and later systems can use HART interface modules; earlier Tricon systems must upgrade to Tricon v10.4.x. The chassis requirements for using HART interface modules in a system upgraded to Tricon v10.4.x differ depending on the original system version, as described in this table.
