Drive Information - Mitsubishi Electric MELSEC iQ-R Series User Manual

Drive information

The following is the list of special relay areas relating to the drive information.
No. Name
SM600 Memory card usable flags
SM601 Memory card protect flag
SM603 Memory card (drive 2) flag
SM604 Memory card in-use flag
SM605 Memory card remove/insert
prohibit flag
SM606 SD memory card forced
disable instruction
SM607 SD memory card forced
disable status flag
SM626 Extended SRAM cassette
insertion flag
SM628 Program memory write
error
SM629 Program memory write flag
SM630 Program memory overwrite
count error flag
SM632 Data memory write error
SM633 Data memory write flag
SM634 Number of rewriting
operations error to data
memory flag
Data stored
Off: Disabled
On: Enabled
Off: Not protected
On: Protected
Off: No SD memory card inserted
On: SD memory card inserted
Off: Not used
On: In use
Off: Allowed to remove/insert
On: Not allowed to remove/insert
Off: Cancel instruction
On: Forced disable instruction
Off: Not disabled
On: Disabled
Off: Not inserted
On: Inserted
Off: No write operation/normal
On: Write error
Off: No write operation
On: Executing write operation
Off: The number of rewrite
operations is less than 100000
On: The number of rewrite
operations reaches 100000
Off: No write operation/normal
On: Write error
Off: No write operation
On: Executing write operation
Off: The number of rewrite
operations is less than 100000
On: The number of rewrite
operations reaches 100000
Details
This relay is on when an SD memory card is enabled
(This relay switches to on when a valid SD memory
card is inserted and prepared for use).
This relay is on when the write protect switch of the
SD memory card is set to on.
This relay is on when an SD memory card is inserted.
(This relay switches to on when an SD memory card is
inserted regardless of its state (enabled/disabled) and
type).
This relay is on when the SD memory card is being
used.
Turn on this relay to prohibit the SD memory card from
being removed/inserted. When this relay is on, if
SM607 is set to on, the system switches it to off.
• This relay can be switched to on to issue the
instruction that forces the SD memory card to be
disabled. However, whenever any function
accesses the SD memory card, the disabling
process does not start until the access is completed.
• This relay can be switched to off to cancel the
instruction that forces the SD memory card to be
disabled.
• This relay switches to on when the SD memory card
is disabled by switching SM606 to on.
• This relay switches to off when the forcibly-disabled
SD memory card is enabled by switching SM606 to
off.
This relay is on when the extended SRAM cassette is
inserted.
This relay switches to on when a write error is
detected during write operation to the program
memory. This relay switches to off when the write
instruction is issued.
This relay is on when the write process to the program
memory is in progress. The relay is switched to off
when the write process is completed.
This relay switches to on when the number of program
memory rewriting operations reaches 100000 (CPU
module must be replaced).
This relay switches to on when a write error is
detected during write operation to the data memory.
This relay switches to off when the write instruction is
issued.
This relay is on when the write process to the data
memory is in progress. The relay is switched to off
when the write process is completed.
This relay switches to on when the number of data
memory rewriting operations reaches 100000 (CPU
module must be replaced).
Appendix 4 List of Special Relay Areas
Set by (setting
timing)
S (Status change)
S (Status change)
S (Status change)
S (Status change)
U/S
U/S (Status
change)
S (Status change)
A
S (Status change)
S (Writing)
S (Writing)
S (Writing)
S (Writing)
S (Writing)
S (Writing)
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