ICS T8403 检测断路和短路电路现场接线故障
每个场输入是三倍的，并且使用
∑-Δ输入电路。产生的磁场电压测量值为
与用户可配置的阈值电压进行比较，以确定报告的
字段输入状态。当线路监控设备安装在现场交换机处时，
该模块可以检测现场电缆的开路和短路。线路监测
为每个输入通道独立配置功能。这个
结合车载诊断测试的三重电压测量，
提供全面的故障检测和容错功能。
该模块通过
分辨率为1ms。状态的改变触发SOE条目。州是
由每个通道上可以配置的电压阈值确定
原因
特征
•每个模块40个三模冗余（TMR）输入通道。
•全面、自动的诊断和自检。
•每个通道可选择线路监测，以检测断路和短路
电路现场接线故障。
•2500 V脉冲耐受光电隔离屏障。
•机载事件序列（SOE）报告，分辨率为1ms。
•模块可以使用专用Companion在线热更换
（相邻）插槽或SmartSlot（一个备用插槽用于多个模块）
配置。
•每个通道的前面板输入状态LED指示输入状态
以及现场布线故障。
•前面板模块状态指示灯指示模块运行状况和
操作模式（活动、待机、教育）。
Each field input is triplicated and the input voltage is measured using a
sigma-delta input circuit. The resulting field voltage measurement is
compared to user configurable threshold voltages to determine the reported
field input state. When a line-monitoring device is installed at the field switch,
the module can detect open and short circuit field cables. Line monitoring
functions are independently configured for each input channel. The
triplicated voltage measurement, coupled with onboard diagnostic testing,
provides comprehensive fault detection and tolerance.
The module provides onboard Sequence of Events (SOE) reporting with a
resolution of 1 ms. A change of state triggers an SOE entry. States are
determined by voltage thresholds that can be configured on a per channel
basis.
Features
• 40 Triple Modular Redundant (TMR) input channels per module.
• Comprehensive, automatic diagnostics and self-test.
• Selectable line monitoring per channel to detect open circuit and short
circuit field wiring faults.
• 2500 V impulse withstand opto/galvanic isolation barrier.
• Onboard Sequence of Events (SOE) reporting with 1 ms resolution.
• Module can be hot-replaced online using dedicated Companion
(adjacent) Slot or SmartSlot (one spare slot for many modules)
configurations.
• Front panel input status LEDs for each channel indicate input status
and field wiring faults.
• Front panel module status LEDs indicate module health and
operational mode (Active, Standby, Educated).
T8846
T9402
T9432
T9451
T8448
T8311
T8231
T8310
T8431C
T8151B
T8451C
T8403
T8461
T8431
T8451
T8480
T9110
T8461C
T8110B
