ABB 3BUS208796-001数字量输入输出卡
Tdm-位2日间报警掩码-当Ipsw（参见位6，中断开关）设置为逻辑1（1）时，启用/禁用日间报警中断输出。当设置为逻辑零（0）时，将启用日间报警中断输出。当设置为逻辑一（1）时，将禁用日内报警中断输出。晶圆-位1看门狗报警标志-当发生看门狗报警中断时，这是一个设置为逻辑1（1）的只读位。当任何看门狗报警寄存器被访问时，该位被重置。当中断输出设置为脉冲模式（参见位4，中断脉冲模式或电平模式）时，只有当中断输出激活时，标志才会设置为逻辑1。Tdf-位0日内报警标志-当日内报警中断发生时，这是一个只读位，设置为逻辑1。当任何一天时间报警寄存器被访问时，该位被重置。当中断输出设置为脉冲模式（参见位4，中断脉冲模式或电平模式）时，只有当中断输出激活时，标志才会设置为逻辑1。
Tdm - Bit 2 Time of Day Alarm Mask - Enables/Disables the Time of Day Alarm to Interrupt Output when Ipsw (see Bit 6, Interrupt Switch) is set to logic one (1). When set to a logic zero (0), Time of Day Alarm Interrupt Output will be enabled. When set to a logic one (1), Time of Day Alarm Interrupt Output will be disabled. Waf - Bit 1 Watchdog Alarm Flag - This is a read-only bit set to a logic one (1) when a Watchdog Alarm Interrupt occurs. This bit is reset when any of the Watchdog Alarm registers are accessed. When the Interrupt Output is set to Pulse Mode (see Bit 4, Interrupt Pulse Mode or Level Mode), the flag will be set to a logic one (1) only when the Interrupt Output is active. Tdf - Bit 0 Time of Day Alarm Flag - This is a read-only bit set to a logic one (1) when a Time of Day Alarm Interrupt occurs. This bit is reset when any of the Time of Day Alarm registers are accessed. When the Interrupt Output is set to Pulse Mode (see Bit 4, Interrupt Pulse Mode or Level Mode), the flag will be set to a logic one (1) only when the Interrupt Output is active.
