580
(18)Process control instruction
(19)Redundant system (host system CPU information
*1
)
The special register (SD1510 to SD1599) is valid only for redundant systems. All bits are set to "0" for stand-
alone systems.
Number Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
D9
Corresponding
CPU
SD1500,
SD1501
Basic
period
Basic period
time
Set the basic period (1 second units) use for the process
control instruction using floating point data.
UNewQnPH
SD1502
Process
control
instruction
detail error
code
Process
control
instruction
detail error
code
This register indicates the details of an error occurred by
executing a process control instruction.
S (Error) New QnPH
SD1503
Process
control
instruction
generated
error
location
Process
control
instruction
generated
error location
Shows the error process block that occurred in the process
control instruction.
S (Error) New QnPH
SD1506,
SD1507
Dummy
device
Dummy
device
Used to specify dummy devices by a process control
instruction.
UNew
QnPH
QnPRH
SD1508
Function
availability
selection for
process
control
instruction
b0
Bumpless
function
availability
setting for the
S.PIDP
instruction
0: Enabled
1: Disabled
(Default: 0)
This register stores whether to enable functions for process
control instructions.
UNew
QnPH
QnPRH
Number Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
D9
Corresponding
CPU
SD1585
Redundant
system LED
status
4 LED states
• BACKUP
•CONTROL
• SYSTEM A
• SYSTEM B
The LED status of BACKUP, CONTROL, SYSTEM A, or
SYSTEM B is stored in the following format:
S (Status
change)
New QnPRH
SD1501 SD1500Floating points data =
b0b1b2b15 b14
00SD1508 0 1/0
Bumpless
function availability
for the S.PIDP
instruction
to
b0b2b3b4b5b6b7b8b10b9b15
00
SYSTEM B
SYSTEM A
CONTROL
BACKUP
to
to
0: Off
1: On
2: Flicker
0: Off
1: On
2: Flicker
0: Off
1: On
0: Off
1: On (red)
2:
3: On(green)
4: Flicker(green)
Flicker(red)
5: On (orange)
6: Flicker(orange)