SAGEMCOM 252721013AF输入输出模块
如果从属设备不支持所选波特率，则会出现编译警告。在这种情况下，将自动选择下一个较低的支持波特率。如果找不到任何人，将生成编译错误。更改波特率也可能需要更改其他总线参数以确保通信成功。自动计算将确定正确的设置。不同波特率下的参数默认值每个从设备都有一个看门狗定时器，该定时器由主设备的请求重新触发。如果看门狗时间到期，则将从输出设置为预定值。如果在主设备或通信系统中存在中断，则该控制确保受控的预定值。将看门狗时间设置为至少与理论系统反应时间一样长（参见下文的目标旋转时间TTR）。看门狗时间应大于或等于TTR*tbit*10，其中tbit=（1/波特率[kbits/s]）。
A compilation warning occurs
if a slave does not support the selected baud rate. In this case the
next lower supported baud rate will be selected automatically. If no
one can be found, a compilation error will be generated. Changing
the baud rate may also require changing of other bus parameters
to ensure successful communication. The automatic calculation
will determine the right settings. Default values of parameters at
different baud rates Each slave has a watchdog timer that is retriggered by requests
from the master. If the watchdog time expires the slave outputs are
set to the predetermined value. This control ensures a controlled
predetermined value if there is a break in the master or the
communication system. Set the watchdog time at least as long as
the theoretical system reaction time (see Target Rotation Time,
TTR, below). Watchdog time should be greater or equal than TTR
* tbit * 10, where tbit = (1/baud rate[kbits/s]).
