Mitsubishi Electric Melsec Q Series User Manual page 94

3
SPECIFICATIONS
3
- 53 3.4 Buffer Memory
3.4.13 Temporary slave reservation area
When the Data exchange start request signal (Y00) is turned ON, the DP-Slaves
specified in the Temporary slave reservation request area (Un\G23608 to Un\G23615)
become temporary slave reservation.
Temporary slave reservation
request area
(Un\G23608 to Un\G23615)
Data exchange start request signal (Y00)
Data exchange start completed signal (X00)
Slave status area
(Reserved station setting status)
(Un\G23048 to Un\G23055)
and
Temporary slave reservation
status area
(Un\G23600 to Un\G23607)
Figure 3.34 Operation in Temporary Slave Reservation Request Area
POINT
(1) Set values in the Temporary slave reservation request area (Un\G23608 to
Un\G23615) while the Data exchange start request signal (Y00) is OFF.
Values set with the Data exchange start request signal (Y00) ON are ignored.
(2) Normal DP-Slaves can be changed to Temporary slave reservations.
Changing Reserved stations (DP-Slaves set as reserved stations with slave
parameters) to Normal DP-Slave status is not allowed.
For the temporary slave reservation function, refer to Section 4.7.
Specifies temporary slave reservation(s)
ON
OFF
OFF
Executes
temporary slave
reservation
ON
Stores status data