Setting the Communication Delay Time (No.5-9)
Setting range : 0 to 50 ms
Default : 10 ms
Set the minimum delay time from reception of the communication command up to transmission.
Note
• In the case of the RS-485 interface, it sometimes takes time to perform tristate
control due to the line converter, which may causes signals to
collide. This can be avoided at this time by lengthening the delay time.
Particular care must be taken when communication is set to a low speed
(2400 bps).
• The actual delay time from reception of the communication command up
to transmission is the total time required to process commands by the
software added to the above delay time. In particular, it sometimes takes
about 400 ms to process commands in the case of the write command.

仪表上有个 通讯延迟时间 ，解释说是仪器的 从 接收命令 到 发送命令 之间的时间。 后面再解释说 ， 485通讯时候，特别是在 写命令时，三态转换时要花时间的，可能造成信号冲突，可以 通过增加 延迟时间（delay time）来解决。

这个延迟到底是怎么产生的啊，什么信号和什么信号冲突？？