Mitsubishi MELSEC-Q Series User Manual page 66

4 FUNCTIONS
Parameter setting method
(before change)
Parameter setting with GX
Developer
Parameter setting with the
RLPASET instruction
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(c) It is necessary to set I/O assignments for modules whose network
parameters are set by the RLPASET instruction.
In addition, do not use GX Developer to set the network parameters and
automatic refresh parameters for modules whose network parameters are
set by the RLPASET instruction.
If the RLPASET instruction is used to set network parameters for modules
whose network parameters and automatic refresh parameters have been
set by GX Developer, the RLPASET instruction will complete with an error
and the network parameter settings performed by the RLPASET instruction
become invalid.
(d) If the switch setting of an intelligent functional module for which an I/O
assignment is set, has not been performed or is wrong, the RLPASET
instruction completes with an error.
However, the QJ61BT11 with the smallest head I/O number seen from the
PLC CPU starts CC-Link automatically.
(e) Do not use GX Developer for setting the network parameters, if the network
parameters of all the modules are set by the RLPASET instruction.
Change the "No. of boards in" setting to blank if the network parameters
have been already set by GX Developer.
Moreover, in case a system includes both a module for which the network
parameters are set by GX Developer and a module for which the network
parameters are set by the RLPASET instruction, the module for which the
network parameters are set by the RLPASET instruction should not be
included in the "No. of boards in" setting of GX Developer.
(f) Automatic refresh is not performed.
The devices should be refreshed via the FROM/TO instruction or the G device.
(g) It is not possible to set input status from a data link faulty station.
Inputs from a data link faulty station are cleared.
(h) The standby master function is not available.
(i) In order to change the parameter setting method, turn the power supply to
the PLC system off and back on, or reset the PLC CPU.
The following table shows how the PLC CPU operates when changing the
parameter setting method without turning the power supply to the PLC
system off and back on, or resetting the PLC CPU.
Parameter setting method
(after change)
Parameter setting with the
RLPASET instruction
Parameter setting with GX
Developer
Note that data link continues to be performed if the designation of
operation at CPU down ((S1) + 5) of the RLPASET instruction is set to
"Continue."
Error notification method
The RLPASET instruction
completes with an error.
LINK.PARA.ERR occurs in
the PLC CPU.
MELSEC-Q
Continuity of data link
Data link continues.
Data link stops.
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