Mitsubishi Electric MELSEC-Q QnPHCPU Programming Manual page 186

9 CONTROL OPERATION INSTRUCTIONS
(3) SV count-up processing
SV count-up is performed with the following expression in each execution cycle.
SV'
(4) MV
PGS
MV
PGS
operation
Processing when
SV'
(5) Output processing
Condition
MV
PGS
MV
PGS
Others
*1: When MHI or ERRI in the alarm detection inhibition (INH) is set to 1, MHA and BB2 show 0 since the
alarm is prohibited.
*2: When MLI or ERRI in the alarm detection inhibition (INH) is set to 1, MLA and BB3 show 0 since the
alarm is prohibited.
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SV T
operation
Type
Mode
SV SV
1
SVn SV
- 1
Mode change
SV
MV
SVn
Restart method
Manual
MAN, CMB, CMV, LCM, LCA, LCC
BB2,
BW
MHA
MH MV
n
ML MV
n
MV
n
Hold
AUT, CAB
MV
SVn
MAN
Last value
Last value
After SV is set,
mode is changed
from MAN to AUT.
BB3,
MLA
MV
0 0
MV
0 0
MV
0 0
n
Return
MV
1
MV
n n-1
(SV SV ) MV
n-1
SV SV
n n-1
MAN
0
Last value
Mode is changed
from MAN to AUT.
Automatic
AUT, CAB, CAS, CCB, CSV
BW BB2, MHA
*1
MH
1
n
ML
0
n
MV
0
PGS
MELSEC-Q
Cyclic
CAS, CCB, CSV
n-1
Not moved
0
MV
1
Automatic restart
BB3, MLA
0
*2
1
0
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