I/O Data Exchange Area - Mitsubishi Electric Melsec Q Series User Manual

3
SPECIFICATIONS

3.4.4 I/O data exchange area

This area is used for the I/O data exchange function.
POINT
Order of assignment
(1) Data are assigned to the I/O data exchange area in the order of parameters
set in GX Configurator-DP (in the order of FDL addresses).
The actual order of assignment can be checked in Address information area
(for mode 3) (Un\G22528 to Un\G22777) or in "Documentation of I/O-
Mapping" of GX Configurator-DP.
(2) When parameters have been modified (deletion or addition of DP-Slave(s))
on GX Configurator-DP, the buffer memory is reassigned.
After modifying parameters, review the sequence program.
If some DP-Slaves are expected to be connected to the network in the future,
setting them as Reserved stations in the parameter setting eliminates the
need to check the sequence program. (
(3) Input data of a DP-Slave
stored in the Input data area of the QJ71PB92V.
Data stored before the fault are held in the relevant Input data area for the
DP-Slave.
* 1 DP-Slave corresponding to the bit that is turned OFF in the Slave status area (Normal
communication detection) (Un\G23040 to Un\G23047)
3.4 Buffer Memory
3.4.4 I/O data exchange area
Section 6.5)
*1
, which has failed in I/O data exchange, are not
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