IAI America MSCON - Manual (Page 18)

10
Also, if one tries to read the signal that is being re-written by the other, the signal may be read wrongly.
Make sure to read the signal after the rewriting is complete. (It is recommended to have more than 2 scan
periods to wait.) Make sure not to have the output side to change the output until the other side completes
the reading. Also, a setting is made on the input area not to receive the signal less than a certain time to
prevent a wrong reading of noise. This duration also needs to be considered.

10. PLC Timer Setting
Do not have the PLC timer setting to be done with the minimum setting.
Setting to “1” for 100msec timer turns ON at the timing from 0 to 100msec while 10msec timer
from 0 to 10msec for some PLC.
Therefore, the same process as when the timer is not set is held and may cause a failure such
as the actuator cannot get positioned to the indicated position number in Positioner Mode.
Set “2” as the minimum value for the setting of 10msec timer and when setting to 100msec, use
10msec timer and set to “10”.