APPX
Appendix 5 List of Special Register Areas
687
A
Drive information
The following is the list of special register areas relating to the drive information.
No. Name Data stored Details Set by (setting
timing)
SD600 Memory card mounting
status
SD memory card type This register indicates the type of mounted SD memory
cards.
• b0 to b3: Fixed to 0
•b4 to b7
0: Does not exist
4: SD memory card
b8 to b15: Fixed to 0
S (Initial, card
insertion/removal)
SD604 SD memory card (drive
2) usage status
SD memory card (drive 2) usage
status
Usage status of the SD memory card is stored using the
following bit pattern. (On indicates being used.)
b0: Event history
b1: Module extension parameter
*1
b2: Label communication data
b3 to b15: Not used
S (Status change)
SD606 SD memory card (drive
2) capacity
SD memory card (drive 2)
capacity: the lower digits (unit: K
bytes)
The capacity of the SD memory card is stored in increments
of 1K byte (the amount of free space for a formatted memory
card is stored).
S (Initial, card
insertion/removal)
SD607 SD memory card (drive 2)
capacity: the higher digits (unit: K
bytes)
The capacity of the SD memory card is stored in increments
of 1K byte (the amount of free space for a formatted memory
card is stored).
S (Initial, card
insertion/removal)
SD610 SD memory card (drive
2) free space
SD memory card (drive 2) free
space: the lower digits (unit: K
bytes)
The amount of free space of the SD memory card is stored in
increments of 1K byte.
S (at change)
SD611 SD memory card (drive 2) free
space: the higher digits (unit: K
bytes)
The amount of free space of the SD memory card is stored in
increments of 1K byte.
S (at change)
SD614 Device/label memory
(drive 3) usage status
Device/label memory (drive 3)
usage status
Usage status of the device/label memory is stored using the
following bit pattern. (On indicates being used.)
b0: File register
b1 to b15: Not used
S (Status change)
SD616 Device/label memory
(drive 3) capacity
Device/label memory (drive 3)
capacity: the lower digits (unit: K
bytes)
The capacity of the device/label memory is stored in
increments of 1K byte (the amount of free space for a
formatted memory card is stored).
S (Initial)
SD617 Device/label memory (drive 3)
capacity: the higher digits (unit: K
bytes)
The capacity of the device/label memory is stored in
increments of 1K byte (the amount of free space for a
formatted memory card is stored).
S (Initial)
SD618 Device/label memory
(file storage area)
capacity
Device/label memory (file storage
area) (drive 3) capacity: the lower
digits (unit: K bytes)
The capacity of the device/label memory (file storage area)
is stored in increments of 1K byte (the amount of free space
for a formatted memory card is stored).
S (Initial)
SD619 Device/label memory (file storage
area) (drive 3) capacity: the higher
digits (unit: K bytes)
The capacity of the device/label memory (file storage area)
is stored in increments of 1K byte (the amount of free space
for a formatted memory card is stored).
S (Initial)
SD620 Data memory (drive 4)
usage status
Data memory (drive 4) usage
status
Usage status of the data memory is stored using the
following bit pattern. (On indicates being used.)
b0: Event history
b1: Module extension parameter
*1
b2: Label communication data
b3 to b15: Not used
S (Status change)
SD622 Data memory (drive 4)
capacity
Data memory (drive 4) capacity:
the lower digits (unit: K bytes)
The capacity of the data memory is stored in increments of
1K byte
(the amount of free space for a formatted memory card is
stored).
S (Initial)
SD623 Data memory (drive 4) capacity:
the higher digits (unit: K bytes)
The capacity of the data memory is stored in increments of
1K byte
(the amount of free space for a formatted memory card is
stored).
S (Initial)
b15 b8 b7 b4 b3 b0
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