APPX
Appendix 4 List of Special Relay Areas
827
A
Online module change function
The following is the list of special relay areas relating to the online module change function.
No. Name Data stored Details Set by (setting timing) CPU
SM1600 Module selection request
flag
OffOn:Requested This relay is turned on to select an online
change target module. When changing a
module directly, the system turns on this
relay upon removal of the target module.
The relay can be turned on only when the
value set in SD1617 is 0 (Normal operation).
The relay turns off upon completion of the
online module change processing. If the
selection cancel is requested, the relay
turns off after the selection is cancelled.
S (Status change)/U
(Request)
RnP
RnPSF
SM1601 Module selection
completion flag
Off: No module selected
On: Selected
This relay turns on when an online change
target module has been selected. The relay
turns off upon completion of the online
module change processing.
S (Status change) RnP
RnPSF
SM1602 Module removal request
flag
OffOn:Requested This relay is turned on to request a removal
of the selected module. When changing a
module directly, the system turns on this
relay upon removal of the target module.
The relay can be turned on only when the
value set in SD1617 is 2 (Module selected).
The relay turns off upon completion of the
online module change processing.
S (Status change)/U
(Request)
RnP
RnPSF
SM1603 Module removal ready flag Off: Not prepared
On: Ready
This relay turns on when the selected
module is ready to be removed. The relay
turns off upon completion of the online
module change processing.
S (Status change) RnP
RnPSF
SM1604 Module removal completion
flag
Off: Not completed
On: Completed
This relay turns on when the selected
module has been removed. The relay turns
off upon completion of the online module
change processing.
S (Status change) RnP
RnPSF
SM1605 Module mounting
completion flag
Off: Not completed
On: Completed
This relay turns on when a new module has
been mounted. The relay turns off upon
completion of the online module change
processing.
S (Status change) RnP
RnPSF
SM1606 Module recognition request
flag
OffOn:Requested This relay is turned on to request
recognition of the newly-mounted module.
When changing a module directly, the
system turns on this relay upon mounting of
the module. The relay can be turned on only
when the value set in SD1617 is 6 (Module
mounted). The relay turns off upon
completion of the online module change
processing.
S (Status change)/U
(Request)
RnP
RnPSF
SM1607 Module recognition
completion flag
Off: Not recognized
On: Recognized
This relay turns on when the newly-mounted
module is recognized by the system. The
relay turns off upon completion of the online
module change processing.
S (Status change) RnP
RnPSF
SM1608 Module control resumption
request flag
OffOn:Requested This relay turns on to start control of the
replaced module. When changing a module
directly, the system turns on this relay upon
recognition of the module. The relay can be
turned on only when the value set in
SD1617 is 8 (Module recognized). The relay
turns off upon completion of the online
module change processing.
S (Status change)/U
(Request)
RnP
RnPSF
S
M1609 Online module change
completion flag
Off: Not completed
On: Completed
The relay turns on upon completion of the
online module change processing. This
relay turns off in the next scan.
S (Status change) RnP
RnPSF
SM1615 Module selection
cancellation request flag
OffOn:Module selection
cancellation requested
This relay is turned on to cancel a module
selection request. The relay can be turned
on only when the value set in SD1617 is 2
(Module selected). The relay turns off after
the selection is cancelled.
S (Status change)/U
(Request)
RnP
RnPSF
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