ABB PLC 控制器 卡件 3BDH000530R1 模块

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看门狗功能允许网关监视数据库寄存器
看门狗寄存器，用于检查与非PROFIBUS的通信丢失
通信协议。如果使用此功能，则其他网关协议为
期望以小于的间隔更改监视器寄存器中的值
看门狗超时参数中指定的时间量。如果
看门狗寄存器在这段时间内不会改变
假设通信丢失，看门狗功能将设置
PROFIBUS输出到看门狗重置值中指定的默认值
参数要禁用此功能，请将此参数设置为值-1。The Watchdog function allows the gateway to monitor a database register, the
Watchdog Register, to check for loss of communication with the non-PROFIBUS
communication protocol. If this function is used, the other gateway protocol is
expected to change the value in the Watchdog Register at an interval less than
the amount of time specified in the Watchdog Timeout parameter. If the value in
the Watchdog Register does not change within this amount of time, a
communication loss is assumed and the Watchdog function will set the
PROFIBUS outputs to the default value specified in the Watchdog Reset Value
parameter. To disable this function, set this parameter to a value of -1.