Mitsubishi Electric MELSEC Q Series Programming Manual page 124

4 DEDICATED DEVICES
• Bit 6: Initial signal comparison check complete
This signal is turned ON when detects that both the Motion CPU
and PLC CPU start to execute the safety signal comparison
process (sequence program), and the signal status match at start-
up.
• Bit 7: Device memory check error
This signal is turned ON when detects device memory check error.
• Bit 8: Comparison process running (only Motion CPU side)
This signal is turned ON when the Motion CPU is running the
sequence program.
• Bit 9: PLC CPU side comparison process running (only Motion CPU side)
This signal is turned ON when the Motion CPU detects that the PLC
CPU is running the sequence program.
• Bit B: Safety signal comparison circuit check normal (only Motion CPU
side)
This signal is turned ON when the Motion CPU reads and compares
the PLC CPU's safety signal comparison sequence program, and
detects that no error is occurring.
• Bit C: Remote I/O transmission disconnected (only Motion CPU side)
This signal is turned ON when disconnection of cable between the
Motion CPU and the safety signal module is detected.
• Bit E: Output off check request (Motion CPU side)
This signal is turned ON when the output off check is requested. It
is linked with the output off check request flag (SM28)
Output off check complete (PLC CPU side)
After completing the output off check, this signal stays ON until the
Motion CPU side check request flag is dropped.
• Bit F: Output off check normal
This signal is turned ON when the result of first time output off
check is normal at power up. After the first time check, the signal
will be turned OFF if the output off check by user request detects an
error.
(8) Multiple CPU shared device address for safety observation
Signal name
Multiple CPU shared device address for
safety observation
(Note-1): is Multiple CPU shared device start address of safety signal comparison parameter.
[Function]
Start number of the multiple CPU shared device address for safety
observation is stored.
[Operation]
The value set in the safety signal comparison parameter "multiple CPU area
device address setting" is always stored.
PLC CPU side
U3E0\G +32
4 - 11
(Note-1)
Device No.
Motion CPU side
U3E1\G +32