Device No. Name Description
SR34
SD memory card write
protection flag
ON: Protected
OFF: Not protected
SR35 SD memory card type
ON: SD
OFF: SDHC
SR36
SD memory card file
system
ON: FAT16
OFF: FAT32
SR37 Logging into FTP server Turns on while logging in.
SR38 Logging trace execution
ON: Executing
OFF: Not in operation
SR39 Logging trace start
ON: Active
OFF: Not in operation
SR3A
SD memory card access
instruction active
This relay is used to check whether other SD memory card access
instructions are executed or not.
ON: Executing
OFF: Not in operation
SR3B
SD memory card access
instruction execution
complete
This relay is used to check the completion of SD memory card
access instruction with the change of this flag (ON to OFF), and
used to turn off the trigger of the instruction.
ON: Execution complete
OFF: Executing
SR3C
SD memory card access
instruction execution result
The execution result of SD memory card access instruction is
stored. Error codes are stored in system data register SD30.
ON: Error
OFF: Normal
SR3D
SD card logging graph
aggregation in process
ON: Aggregating
OFF: Aggregation complete
SR3E (Not used)
SR3F
SD memory card is being
accessed.
Power OFF
Turns on if the CPU unit is powered off while accessing an SD
memory card.
WS5
Device No. Name Description
SR50
MW unit error alarm relay
(1st unit)
Turns on when an error occurs in the FP7 MW Unit.
The error code and unit number is stored in the system registers
SD90 to SD95.
SR51
MW unit error alarm relay
(2nd unit)
SR52
MW unit error alarm relay
(3rd unit)
SR53
MW unit error alarm relay
(4th unit)
SR54
MW unit error alarm relay
(5th unit)
SR55 MW unit error alarm relay
20.1 List of System Relays
WUME-FP7CPUPGR-12 20-5