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12.8 Special Register List
12
TROUBLESHOOTING
(13) QCPU with built-in Ethernet port
*1: This applies to the QnUDE(H)CPU.
Table12.56 Special register
Number Name Meaning Explanation
Set by
(When Set)
Corres-
ponding
ACPU
D9
Corresponding
CPU
SD1270
Time setting function
Operation
result
Stores
operation result
.
Stores the operation result of the time setting function.
0: Not executed
1: Success
FFFF
H: Failure
S (status
change)
New
QnU
*1
SD1271
Execution
time
Stores time
acquired with
time setting
function
Stores years (last two digits of the Christian Era) and monthes
by two digits of BCD code.
SD1272
Stores dates and hours acquired with time setting function by
two digits of BCD code.
SD1273
Stores minutes and seconds acquired with time setting function
by two digits of BCD code.
SD1274
Stores years (first two digits of the Christian Era) and days
acquierd with time setting function.
SD1275
Required
response
time
Stores time
required for
clock time
aquisition.
Stores time taken from transmission to SNTP server until time is
set up at CPU.
Range: 0 to FFFE
H (Unit: ms)
FFFF
H when the above limit is exceeded.
SD1276
Forced
connection
invalidation
Specifies forced
connection
invalidation.
Specify this when a connection is to be invalidated forcibly on
the user program. If invalidation is specified for a connection, it
stops communication and does not respond. (When a remote
password is used and frequent unlock processing errors have
occurred on a connection, this is useful for temporarily inhibiting
access to the connection.)
0: Valid (default)
1: Invalid
U
SD1277
b15
b12to b11
b8
to
b7
b4to
b3 b0
to
Example:
July, 1993
9307
H
Year
Month
b15
b12to b11
b8
to
b7
b4to
b3 b0
to
Day
Hour
Example:
31st, 10 a.m.
3110
H
b15
b12to b11
b8
to
b7
b4to
b3 b0
to
Example:
35 min., 48 sec.
3548
H
SecondSecondMinute
b15
b12
to
b11 b8
to
b7 b4
to
b3 b0
to
0
1
2
3
4
5
6
Example:
1993, Friday
1905
H
Higher digits of year (0 to 99)
Sunday
Saturday
Friday
Thursday
Wednesday
Tuesday
Monday
Day of the week
b15b14
b0b2
SD1276
Connection 1
Directconnection to
SD1277
MELSOFT communication
FTP communication port
to
b15b14 to b12 b4 b3 b2 b1 b0
MELSOFT communication
000
to
Connection 16
Connection 15
Connection 2
port (UDP/IP)
port (TCP/IP)
MESOFT
to
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