Mitsubishi Electric MELSEC iQ-R-R04CPU - Page 830

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APPX
Appendix 4 List of Special Relay Areas
SM1616 Online module change
availability flag
Off: Disabled
On: Enabled
This relay turns on when only the Process
CPU is used in a single CPU system. In a
multiple CPU system, if any of the CPU
modules other than the Process CPU does
not support the online module change
function, the relay turns off. If all the CPU
modules support the function, the relay
turns on. Note that the setting details in the
direct change setting cannot be checked
with SM1616. To check the direct change
setting, check the CPU parameters.
S (Initial) RnP
RnPSF
SM1617 Online module change
status flag
Off: Function not executed
On: Function being
executed
This relay turns on when SM1600 is turned
on to start the online module change
processing. The relay turns off upon
completion of the online module change
processing.
S (Status change) RnP
RnPSF
SM1618 Online module change error
flag
Off: No error
On: Error
This relay turns on when an error is
detected. This relay turns off when the error
cause is eliminated and the online module
change related request is executed.
An error occurs in selecting a module. Thus,
turn off the relay before module selection.
S (Status change)/U
(Request)
RnP
RnPSF
SM1619 Disable request flag during
online module change
Off: No disable request
On: Disable request
detected
This relay turns on when a disable request
is issued during the online module change
processing. The relay turns off upon
completion of the online module change
processing.
S (Status change) RnP
RnPSF
No. Name Data stored Details Set by (setting timing) CPU