Mitsubishi LJ61BT11 User Manual page 156

(2) Precautions when using the block guarantee of cyclic data per
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station
(a) When using this function, be sure to make the auto refresh settings.
If the auto refresh settings have not been made for all devices, remote input
(RX), remote output (RY) and remote registers (RWr/RWw) in the buffer
memory may not be refreshed.
The following message is displayed if the auto refresh settings have not
been completed.
If this message is displayed, check the settings.
(b) When this function is used, the transmission delay time increases (compared
with when this function is not used).
When designing a new system by using an existing system as it is, confirm
the delay time of the data from the remote station before starting the
system.
POINT
For the formula for calculating the transmission delay time when the block
guarantee of cyclic data per station is used and when it is not used, refer to
Appendix 4.2 to 4.6.
(c) When this function is used, the link refresh time increases (compared with
when this function is not used).
When designing a new system by using an existing system as it is, confirm
the link refresh time before starting the system.
POINT
For the formula for calculating the link refresh time when the block guarantee of
cyclic data per station is used and when it is not used, refer to Appendix 4.11.
8 FUNCTIONS
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