RELANCE 0-57669-B 被用于设计更强大的计算机
0-57669-B冗余控制器采用软硬件容错设计，运行过程中采用控制器同步执行，主控制器允许输出指令的方式，采用创新的例外报告式高可靠性冗余策略，保证任意时刻完成控制器切换，切换时间小于2ms。避免了传统设计中，备用控制器会在冗余切换后不能正常接替工作的问题。
0-57669-B I/O通讯总线具有本地与远程两种通讯模式均采用科远eBus通讯总线，总线通讯速率为3.125Mpbs，为单层多路并行分支结构。每个（对）控制器本地通讯接口最多支持12个I/O分支共96块模件；远程通讯支持最多12个远程站点，每个远程站点最多支持6个I/O分支，总计支持最多24个分支共192块IO模件。0-57669-B单层多路并行分支结构中各分支相互电气隔离，每条分支的电气故障不影响其它分支的正常运行，可靠性更高。
所有的MMI站均为全功能操作站，根据权限可以随时变更为一般操作员站，工程师站，历史站等，所有MMI站均互为热备用。
分散处理单元KM950采用3处理器结构，主处理器和通信处理器采用军工级低功耗Power PC双核芯片，包含32位400MHz CPU核心（具备64位双精度浮点运算单元）和32位200MHz通信核心；冗余IO处理器采用32位100MHz低功耗RISC处理器，因此，具有更强的通讯处理能力和环境适应性
Each (pair) controller's local communication interface supports a maximum of 12 I/O branches, totaling 96 modules; Remote communication supports up to 12 remote sites, with each remote site supporting up to 6 I/O branches, totaling up to 24 branches and 192 IO modules. In the eBus single-layer multi-channel parallel branch structure, each branch is electrically isolated from each other, and the electrical failure of each branch does not affect the normal operation of other branches, resulting in higher reliability.
The I/O module of the NT6000 distributed control system is powered by two redundant DC power supplies, both of which are sent to the I/O module. The two power supplies are switched in the I/O module, and the transmitter is powered by an independent redundant power supply module, fully achieving hazard dispersion.
The 0-57669-Bredundant controller adopts a software and hardware fault-tolerant design, and during operation, the controller is executed synchronously. 0-57669-B The main controller allows for output instructions, and an innovative exception reporting type high reliability redundancy strategy is adopted to ensure that controller switching is completed at any time, with a switching time of less than 2ms. Avoiding the problem of backup controllers being unable to take over work properly after redundant switching in traditional design. 0-57669-B The I/O communication bus has two communication modes: local and remote. Both use the Keyuan eBus communication bus, with a bus communication rate of 3.125Mpbs and a single-layer multi-channel parallel branch structure.
0-57669-B All MMI stations are fully functional operation stations, which can be changed to general operator stations, engineer stations, historical stations, etc. according to permissions. 0-57669-B All MMI stations are hot standby for each other.
The distributed processing unit KM950 adopts a 3-processor structure, and the main processor and communication processor use military grade low-power Power PC dual core chips, including a 32-bit 400MHz CPU core (with 64 bit double precision floating-point operation unit) and a 32-bit 200MHz communication core;0-57669-B The redundant IO processor adopts a 32-bit 100MHz low-power RISC processor, which has stronger communication processing capabilities and environmental adaptability.