Mitsubishi MELSEC Q Series Programming Manual page 1245

(6) Instruction-related register
Number Name Meaning
SD705
Mask pattern Mask pattern
SD706
SD715
SD716
IMASK
instruction Mask pattern
mask pattern
SD717
SD718
Accumulator Accumulator
SD719
Program No. Program No.
designation for designation for
SD720
PLOADP PLOADP
instruction instruction
Explanation
Turning SM705 during a block operation enables all data in the
block to be processed to masked values according to the mask
patterns stored in SD705 (in SD705 and SD706 for double word
data).
The mask patterns masked by the IMASK instruction are stored
as follows.
b15
SD715 l15 to
l31
SD716 to
SD717 l47 to
For use as replacement for accumulators used in A series
programs.
This register stores the program number of the program to read it
with the PLOADP instruction.(Specified range: 1 to 124)
Set by
(When
Set)
U
S
b1 b0
(During
l1 l0
execution)
l16
l17
l33 l32
S/U
U
Corres-
Corres-
8
ponding
ponding
ACPU
CPU
D9
Q00J/Q00/
8
Q01
Qn(H)
QnPH
QnPRH
8
8
New QCPU
LCPU
A
6
Qn(H)
QnPH
7
8
App-237