Mitsubishi Electric MELSEC iQ-R-R04CPU - Safety Information

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APPX
Appendix 4 List of Special Relay Areas
Safety information
The following is a list of special relay areas relating to safety information.
No. Name Data stored Details Set by (setting timing) CPU
SM1840 Allowed time over flag
for continuous RUN in
TEST MODE
Off: Within the specified
time
On: Specified time
exceeded
This relay turns on when the continuous RUN
time in TEST MODE has exceeded the
allowed time set in the CPU parameter, and
turns off in the following cases.
• When the Safety CPU is powered on or is
reset
• When an error is cleared
S (Error) RnSF
SM1888 Safety cycle processing
time execution cycle
error flag
Off: No error (normal)
On: Error
• This relay switches to on if a cycle in which
safety cycle processing was not executed is
detected.
• Once the relay turns on, it remains on even
if the safety cycle processing is performed
each cycle. (To turn off the relay, power off
and on the system or reset the CPU
module).
S (Status change) RnPSF
RnSF
SM1904 CC-Link IE Field
Network safety
communication setting
(1st module)
Off: Not set
On: Set
• This relay stores the CC-Link IE Field
Network safety communication setting
status.
• When safety communications are available
(the relay is on), the start I/O number of the
target module is stored in SD1904.
S (Initial) RnPSF
RnSF
SM1905 CC-Link IE Field
Network safety
communication setting
(2nd module)
Off: Not set
On: Set
• This relay stores the CC-Link IE Field
Network safety communication setting
status.
• When safety communications are available
(the relay is on), the start I/O number of the
target module is stored in SD1905.
S (Initial) RnPSF
RnSF
SM1906 CC-Link IE Field
Network safety
communication setting
(3rd module)
Off: Not set
On: Set
• This relay stores the CC-Link IE Field
Network safety communication setting
status.
• When safety communications are available
(the relay is on), the start I/O number of the
target module is stored in SD1906.
S (Initial) RnPSF
RnSF
SM1907 CC-Link IE Field
Network safety
communication setting
(4th module)
Off: Not set
On: Set
• This relay stores the CC-Link IE Field
Network safety communication setting
status.
• When safety communications are available
(the relay is on), the start I/O number of the
target module is stored in SD1907.
S (Initial) RnPSF
RnSF
SM1908 CC-Link IE Field
Network safety
communication setting
(5th module)
Off: Not set
On: Set
• This relay stores the CC-Link IE Field
Network safety communication setting
status.
• When safety communications are available
(the relay is on), the start I/O number of the
target module is stored in SD1908.
S (Initial) RnPSF
RnSF
SM1909 CC-Link IE Field
Network safety
communication setting
(6th module)
Off: Not set
On: Set
• This relay stores the CC-Link IE Field
Network safety communication setting
status.
• When safety communications are available
(t
he relay is on), the start I/O number of the
target module is stored in SD1909.
S (Initial) RnPSF
RnSF
SM1910 CC-Link IE Field
Network safety
communication setting
(7th module)
Off: Not set
On: Set
• This relay stores the CC-Link IE Field
Network safety communication setting
status.
• When safety communications are available
(the relay is on), the start I/O number of the
target module is stored in SD1910.
S (Initial) RnPSF
RnSF
SM1911 CC-Link IE Field
Network safety
communication setting
(8th module)
Off: Not set
On: Set
• This relay stores the CC-Link IE Field
Network safety communication setting
status.
• When safety communications are available
(the relay is on), the start I/O number of the
target module is stored in SD1911.
S (Initial) RnPSF
RnSF