TRICONEX DO2401信号处理模块,DO2401使用配置说明
3504E型高密度
连续数字输入模块
验证Tricon是否能够DO2401
检测到相反状态的转换。
在TMR模块上，所有关键信号
路径100%三倍于
保证安全和最大利用能力。每个通道条件信号
独立于现场和
特里康。
3564型单数字输入
模块针对安全关键型进行了优化
成本更低的应用程序
比最大可用性更重要。
在单个模块上，只有这些部分
所需的信号路径的
确保安全操作三倍。
专用自检电路检测所有TRICONEX DO2401
卡滞接通和卡滞断故障条件
不到半秒钟。如果是单个
模块检测到输入故障，并报告
该点为Off，这可能导致
切换到热备盘期间出现故障
单元
The Model 3504E High-Density
Digital Input Module continuously
verifies the ability of the Tricon to
detect transitions to the opposite state.
On this TMR module, all critical signal
paths are 100 percent triplicated for
guaranteed safety and maximum avail
ability. Each channel conditions signals
independently between the field and the
Tricon.
The Model 3564 Single Digital Input
Module 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 which are required to
ensure safe operation are triplicated.
Special self-test circuitry detects all
stuck-On and stuck-Off fault conditions
in less than half a second. If a single
module detects an input fault, it reports
that point as Off, which may cause a
glitch during switch-over to a hot-spare
module.
