IS200IGDMH1B DCS模块卡件,输出卡件
活动模块和备用模块之间的小时板开关（如果安装）驱动负载的通道之间的旋转导致的1毫秒电流下降。通道每10秒旋转一次。漏失与线圈诊断输入样本不同步，可能会被检测到，也可能不会被检测到。如果模块无法从任何点驱动电流，则会激活负载报警状态指示灯。如果负载断开或回路电源缺失（零mA流出/流入），则可能存在这种情况。但是，如果输出电流被命令为零mA，则模块内部诊断将无法识别开环或缺少回路电源。在这种情况下，测量的回路反馈电压可用于检测开路或回路电源缺失。该表显示了指令电流、测量回路反馈输入和负载报警状态指示之间的关系。每个BPAO通道提供环路功率电流限制，以保护外部电源。有关更多信息，请参阅以下章节：•第194页安装3807型双极模拟输出模块•第219页性能验证测试3807型单极模拟输出模块表22 3807双极模拟输出现场故障案例和指示故障案例条件负载指示器负载可变报警环回输入开路负载设置电流>1ma开4095开路负载-1ma<设置电流<1ma关更改（所有值）开路负载设定电流<-1ma开-开-4095短路负载设定电流>1ma关-10至+10计数短路负载设定值电流<-1ma关-10到+10计数数字输入模块71 Tricon v9–v10系统数字输入模块的规划和安装指南本节介绍了可用于Tricon v9-10系统的数字输入模块，其包括TMR和单（非三重）模块。有关安装说明，请参阅第223页的更换I/O模块。每个数字输入模块有三个独立的通道，用于处理模块的所有数据输入。在每个通道上，微处理器扫描每个输入点，编译数据，并根据需要将其传输到主处理器。然后，输入数据在处理前由主处理器进行表决，以确保最高的完整性。所有数字输入模块为每个通道提供完整的持续诊断。任何通道上的任何诊断失败都会激活故障指示灯，进而激活底盘报警信号。故障指示灯指示通道故障，而不是模块故障。模块保证在出现单个故障时正常运行，并且在出现某些类型的多个故障时可以继续正常运行。数字输入模块包括热备用功能，允许在线更换故障模块。与所有I/O模块一样，数字输入模块需要连接到远程外部终端面板的电缆接口。每个模块都采用机械键控，以防止在配置的机箱中安装不当。自检功能自检功能持续验证Tricon控制器检测电路转换的能力。此功能有两种版本：1）3502E、3503E和3505E型包括一个电路卡在开启状态的自检功能，用于验证检测从正常通电电路到关闭状态的转换的能力。2） 3504E和3564型包括一个电路卡在接通或卡在断开状态的自检功能，用于验证Tricon控制器检测从接通到断开或从断开到接通的相反状态转换的能力，具有电路卡在自检功能。3503E 24 VAC/VDC 32 TMR，共8组，电路卡在自检功能上。3504E 24/48 VDC 64 TMR，通用，高密度，直流耦合，电路卡在接通或断开自检功能。在TriStation中配置为24或48 VDC。3505E 24 VDC 32 TMR，公用，低阈值，电路卡在接通或断开自检功能。3564 24 VDC 64单，通用72第2章Tricon v9–v10系统系统组件规划和安装指南3564型单数字输入模块是一种单数字输入组件，针对低成本比最大可用性更重要的安全关键应用进行了优化。在单个模块上，只有确保安全运行所需的信号路径部分是三重的。自检电路在不到500毫秒的时间内检测到非三重信号调节器内的所有卡在打开和关闭状态。这是故障安全系统的强制性特征，该系统必须及时检测所有故障，并且在检测到故障时，强制将测量的输入值设置为安全状态。由于Tricon控制器针对断电跳闸应用进行了优化，因此检测到inpu中的故障
hourly board switch between the active and stand-by module (if installed). • One-millisecond current dropouts caused by the rotation between channels driving the load. Channels rotate every 10 seconds. The dropouts are asynchronous to the coil diagnostic input samples and may or may not be detected. The Load alarm status indicator is activated if the module cannot drive current from any point. This condition can exist of the load is disconnected or if the loop power is missing (zero mA flowing out/in). However, if the output current is commanded to be at zero mA then the module internal diagnostics will not recognize an open loop or missing loop power. In this condition, the measured loop-back voltage may be used to detect an open circuit or missing loop power. This table shows the relationship between the commanded current, the measured loop back input and the Load alarm status indication. Each BPAO channel provides loop power current limiting to protect the external power supplies. For more information, see these sections: • Installing Model 3807 BiPolar Analog Output Modules on page 194 • Performance Proof Testing Model 3807 BiPolar Analog Output Modules on page 219 Table 22 3807 BiPolar Analog Output Field Fault Cases and Indications Fault Case Condition Load Indicator Load Variable Alarm Loopback Input Open load Set current > 1ma On On 4095 Open load -1ma < Set current < 1ma Off Off Changing (all values) Open load Set current < -1ma On On –4095 Shorted load Set current > 1ma Off Off -10 to +10 counts Shorted load Set current < -1ma Off Off -10 to +10 counts Digital Input Modules 71 Planning and Installation Guide for Tricon v9–v10 Systems Digital Input Modules This section describes the Digital Input Modules available for use with Tricon v9–v10 systems, which include TMR and Single (non-triplicated) modules. For installation instructions, see Replacing I/O Modules on page 223. Each Digital Input Module has three independent channels which process all data input to the module. On each channel, a microprocessor scans each input point, compiles data, and transmits it to the Main Processors upon demand. Then input data is voted at the Main Processors before processing to ensure the highest integrity. All Digital Input Modules sustain complete, ongoing diagnostics for each channel. Failure of any diagnostic on any channel activates the Fault indicator which in turn activates the chassis alarm signal. The Fault indicator points to a channel fault, not a module failure. The module is guaranteed to operate properly in the presence of a single fault and may continue to operate properly with certain kinds of multiple faults. Digital Input Modules include the hot-spare feature which allows online replacement of a faulty module. Like all I/O modules, Digital Input Modules require a cable interface to a remotely located external termination panel. Each module is mechanically keyed to prevent improper installation in a configured chassis. Self-Test Feature The Self-Test feature continuously verifies the ability of the Tricon controller to detect the transition of a circuit. This feature is available in two versions: 1) Models 3502E, 3503E, and 3505E include a circuit stuck-On self-test feature that verifies the ability to detect transitions from a normally energized circuit to the Off state. 2) Models 3504E and 3564 include a circuit stuck-On or stuck-Off self-test feature that verifies the ability of a Tricon controller to detect transitions to the opposite state—either from On to Off or from Off to On. Table 23 Digital Input Modules Model Voltage/Type Points Description 3501E/T 115 VAC/VDC 32 TMR, isolated, non-commoned 3502E 48 VAC/VDC 32 TMR, commoned in groups of 8, with a circuit stuck-On selftest feature. 3503E 24 VAC/VDC 32 TMR, commoned in groups of 8, with a circuit stuck-On selftest feature. 3504E 24/48 VDC 64 TMR, commoned, high density, DC-coupled, with a circuit stuck-On or stuck-Off self-test feature. Configured in TriStation as 24 or 48 VDC. 3505E 24 VDC 32 TMR, commoned, low threshold, with a circuit stuck-On or stuck-Off self-test feature. 3564 24 VDC 64 Single, commoned 72 Chapter 2 System Components Planning and Installation Guide for Tricon v9–v10 Systems Single Digital Input Module Model 3564 is a Single Digital Input Module, which is optimized for safety-critical applications where low cost is more important than maximum availability. On Single modules, only those portions of the signal path that are required to ensure safe operation are triplicated. Self-test circuitry detects all stuck-On and stuck-Off fault conditions within the non-triplicated signal conditioners in less than 500 milliseconds. This is a mandatory feature of a fail-safe system, which must detect all faults in a timely manner and upon detection of a fault, force the measured input value to the safe state. Because the Tricon controller is optimized for de-energize-to-trip applications, detection of a fault in the input circuitry forces to Off (the de-energized state) the value reported to the Main Processors by each channel. Although this module is fail-safe, it does not offer the same level of availability and reliability as a TMR module. 115 VAC/VDC Digital Input Modules This figure is a simplified schematic for models 3501E and 3501T, which are 16-point TMR Digital Input Modules without a self-test feature.
