TRICON系统硬件介绍及维护常识课件.ppt

主处理器模块 #3008 32 Bit Central Processor, MPC860, at 50 MHz 32 位微处理器,MPC860, 50 MHz 16 MB DRAM (with battery backup) 16 Mb DRAM(带后备电池） Fault Tolerant inter-processor Bus (TRIBUS) at 25 MHz, 32 bit CRC-protected, DMA fully isolated 容错的内部处理器总线 (TRIBUS)，25MHZ,32位CRC保护,DMA,完全隔离 32 Bit Communication processor MPC860, at 50 MHz 32位通讯 协处理器，MPC860,50MHZ Hardware voting and comparison circuits 硬件表决 和 比较电路 Supports (SOE) and time-stamping 支持SOE 数据的采集 Extensive background diagnostics 强大的诊断功能 TMR 数字输出模块 Independent triplicated signal conditioning, power sources and communications paths 独立的三重化的信号转换器、电源和通讯通道 Per point series/parallel Fault Tolerant Quad Voter hardware circuitry 串/并联容错的四方表决电路 Field Loopback Sensing Diagnostics 现场回路故障检测 No single point of failure 无单点故障 Opto isolation between channels 输出通道间光电隔离 Full noise immunity 抗干扰能力强 On-line replacement 在线更换 TMR 模拟输入模块 Independent triplicated leg signal conditioning, power sources, and communication paths 独立的三重化的信号转换器、电源和通讯通道 Triplicated A/D converters 三重化的A/D转换器 Automatic calibration using built-in reference voltages 通过内置参考电压进行自动电压校正 0.15% full scale range accuracy, 12-bit resolution 0.15% 满量程精度，12位的分辨率 Available with +6% over-range measurement +6% 超压测量范围 No single point of failure 无单点故障 On-line replacement 在线更换 TMR 模拟输出模块 Triplicated 12-bit D/A converters for each of the 8 analog output points 每个输出点都有相应的三重化12位的D/A转换器 2oo3 selection circuit selects correctly operating DAC for each point and periodically selects each DAC to check it’s correct operation 3取2选择电路选取正确的输出电路，并周期性检测 Loopback checking of all analog output channels 所有通道的回路检测 Automatic calibration using built-in reference voltages 通过内置参考电压进行自动电压校正 No single point of failure 无单点故障 On-line replacement 在线更换 TMR 脉冲输入模块 Independent triplicated leg signal conditioning, power sources