Mitsubishi Electric MELSEC iQ-R Series User Manual page 683

No. Name Data stored
SD228 Multiple CPU Number of CPU modules
system information
SD229 CPU module number in
multiple CPU system
SD230 CPU No.1 operating status
SD231 CPU No.2 operating status
SD232 CPU No.3 operating status
SD233 CPU No.4 operating status
SD241 Extension stage 0: Base unit only
number 1 to 7: Number of extension
base units
SD242 Identification for Identification of the base
whether or not Q type
series module can 0: Cannot be mounted
be mounted (There is no base unit on
which the Q series
module can be
mounted.)
1: Can be mounted (There
is a base unit on which
the Q series module can
be mounted.)
SD243 Number of base Number of base slots
slots
SD244
SD250 Loaded maximum Loaded maximum I/O
I/O number
Details
The number of CPU modules which constitute a multiple CPU system
is stored (one to four, including those reserved).
The number of this CPU No. is stored when a multiple CPU system is
configured.
The operation information for each CPU No. is stored (the amount of
stored information depending on the number of CPU modules
indicated in SD228 is stored).
b15 b14 b8 b7 b6 b5 b4 b3
(3)
(4)
(1) The operating status is stored in b0 to b3.
• 0: RUN
• 2: STOP
• 3: PAUSE
• 4: INITIALIZE
• FH: RESET
(2) The classification is stored in b4 and b5. However, minor or
moderate errors will be those set in the CPU parameter RAS
settings, system parameter I/O assignment settings, and multiple
CPU settings.
• 0: Normal
• 1: Minor error (error code: 1000H to 1FFFH)
• 2: Moderate error (error code: 2000H to 3BFFH)
• 3: Major error (error code: 3C00H to 3FFFH)
(3) The stop error flag is stored in b7.
• 0: No stop error
• 1: Stop error
(4) The CPU module mounting status is stored in b15.
• 0: Not mounted
• 1: Mounted
The maximum number of implemented extension base units is stored.
(In a redundant system with redundant extension base unit, the
number is stored in the CPU module of both systems.)
Identify whether or not Q series module can be mounted. When no SD
memory card is inserted, the value is fixed to 0.
b7 b2 b1
to
• b0: Main base unit (fixed to 0)
• b1: Extension base unit 1 (Q series modules can be mounted.)
• b2: Extension base unit 2 (Q series modules can be mounted.)
• b3 to b7: Extension base unit 3 to 7 (Q series modules can be
mounted.)
• b8 to b15: Fixed to 0
The number of slots of the base unit, which is specified in the Base /
power supply / extension cable setting of system parameters, is stored.
When the number of slots of the base unit is not specified by the
system parameter, that of the mounted base unit is stored. (In a
redundant system with redundant extension base unit, the number is
stored in the CPU module of both systems.)
b15 b12 b11 b8 b7
3 2
SD243
SD244 7 6
0: Main
1 to 7: Extension 1 to 7
The value obtained by dividing the last I/O number for an implemented
unit plus one by 16 is stored.
Example 1: Last I/O number 010FH
• SD250 = 0011H
Example 2: Last I/O number 0FFFH
• SD250 = 0100H
b0
(2) (1)
b0
b4 b3 b0
1 0
5 4
Appendix 5 List of Special Register Areas
Set by (setting
timing)
S (Initial)
S (Initial)
S (During END/
Error)
S (Initial)
A
S (Initial)
S (Initial)
S (Initial)
APPX
681