Solution:

TD : A watchdog timer is included on the slave to assist in administration of the communication status. When the data transmission interval from a master to this slave exceeds the time, the watchdog timer time out!!(See the TM setting) Enable Ex . (OFF in SW2) 1. IO Module : All of DO in IO Slave will keep the last status when the watchdog active! 2. Motion Module : The Motion Slave will finish the last command when the watchdog active Disable Ex. (On in SW2) 3. IO Module : All of DO in IO Slave will be off when the watchdog active! 4. Motion Module : The Motion Slave will break off the last command when the watchdog active TM : The corresponding time as below only for IO module. As to Motion Module, the setting is only in the case of On. 20 Mbps 10 Mbps 5Mbps 2.5Mbps OFF 5 ms 10 ms 20 ms 40 ms On 20 ms 40 ms 80 ms 160 ms