Mitsubishi MELSEC Q Series Programming Manual page 1263

(14)
Process control instruction
Number Name Meaning
SD1500 Basic period
Basic period
SD1501 time
Process Process
control control
SD1502 instruction instruction
detail error detail error
code code
Process Process
control control
SD1503 instruction instruction
generated generated
error location error location
SD1506 Dummy
Dummy device
SD1507 device
b0
Bumpless
Function function
availability availability
selection for setting for the
SD1508
process S.PIDP
control instrunction
instruction 0: Enabled
1: Disabled
(Default: 0)
(15) Redundant system (host system CPU information
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
4 LED states
• BACKUP
Redundant • CONTROL
SD1585 system LED • SYSTEM
status A
• SYSTEM
B
Explanation
Set the basic period (1 second units) use for the process control
instruction using floating point data.
Floating points data = SD1501
This register indicates the details of an error occurred by
executing a process control instruction.
Shows the error process block that occurred in the process
control instruction.
Used to specify dummy devices by a process control
instruction.
This register stores whether to enable functions for process
control instructions.
b15 b14 to b2
SD1508 0 0
Explanation
The LED status of BACKUP, CONTROL, SYSTEM A, or SYSTEM
B is stored in the following format:
b15 to b10b9 b8 b7 b6 b5 b4 b3 b2 to
0 0
SYSTEM B
0: Off
1: On
2: Flicker
SYSTEM A
0: Off
1: On
2: Flicker
Set by
(When Set)
SD1500
(Error)
b1 b0
0 1/0
Bumpless function
availability for the
S.PIDP instruction
*1
)
Set by
(When Set)
b0
BACKUP
0: Off
(Status
1: On (red) 5: On (orange)
change)
Flicker(red) 6: Flicker(orange)
2:
3: On(green)
4: Flicker(green)
CONTROL
0: Off
1: On
Corres-
Corres-
ponding
ponding
ACPU
CPU
D9
U
QnPH
S
New
QnPH
U
QnPRH
Corres-
Corres-
ponding
ponding
ACPU
CPU
D9
S
New QnPRH
App-255
8
8
8
8
A
6
7
8