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App - 47 App - 47
MELSEC-Q
APPENDICES
Special Register List (Continued)
Number Name Meaning Explanation
Set by
(When set)
Corresponding
ACPU
D9
Corresponding
CPU
SD340
Ethernet
information
No. of modules
mounted
• Indicates the number of mounted Ethernet modules.
S (Initial) New
QCPU
Rem
SD341
Informa-
tion of 1st
module
I/O No. • Indicates I/O No. of mounted Ethernet module.
SD342
Network
No.
• Indicates network No. of mounted Ethernet module.
SD343 Group No. • Indicates group No. of mounted Ethernet module.
SD344
Station
No.
• Indicates station No. of mounted Ethernet module.
SD345 to
SD346
Empty
• Empty
(For the QCPU, the IP address of the 1st Ethernet module is
stored in the buffer memory.)
Qn(H)
QnPH
QnPRH
QnU
Rem
SD347 Empty
• Empty
(For the QCPU, an error code of the 1st Ethernet module is read
with the ERRRD instruction.)
SD348 to
SD354
Ethernet
information
Information from 2nd
module
• Data configuration is the same as that of the 1st module.
S (Initial) New
SD355 to
SD361
Information from 3rd
module
• Data configuration is the same as that of the 1st module.
Qn(H)
QnPH
QnPRH
QnU
*1
Rem
SD362 to
SD368
Information from
4th module
• Data configuration is the same as that of the 1st module.
1: This applies to Universal model QCPUs except for the Q02UCPU.
(3) Scan information
Special Register List
Number Name Meaning Explanation
Set by
(When set)
Corresponding
ACPU
D9
Corresponding
CPU
SD550
Service
interval
measurement
module
Module No. • Sets I/O No. for module that measures service interval U New
QnA
Qn(H)
QnPH
QnPRH
Rem
SD551
Service
interval time
Module service
interval (ms value)
• This register stores the service interval of a module specified by
SD550 when SM551 is turned on. (The time is measured in
increments of 100s.)
SD551: Stores a ms value (storage range: 0 to 65535)
SD552: Stores a s value (storage range: 0 to 900)
S
(Request)
New
SD552
Module service
interval (s value)