Eaton ELC-PB, Programming Manual

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3 . I n s t r u c t i o n S e t
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API Mnemonic Operands Function
189 MBR P
S, D, n
Matrix Bit Rotator
Bit Devices Word devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S * * * * * * *
D * * * * * *
n * * *
MBR, MBRP: 7 steps
ELC ELCB ELCM
PB PC/PA/PH PV PB PH/PA
32 16 P 32 16 P 32 16 P 32 16 P 32 16 P
Operands:
S
: matrix source address
D
: result
n
: matrix length (K1~K256)
Description:
1 This instruction is used to shift bits left or right within a matrix
S
. When M1097=0 bits are
shifted to the left in the matrix. When M1097=1 bits are shifted to the right in the matrix.
2 For this instruction, the empty bit is filled by the bit shifted out of the other end of the matrix.
when a shift occurs. M1095 is the carry flag and is also where the bit shifted out of the matrix
goes
.
3 This instruction works best when used as a pulse instruction (MBSP).
4 If
S
uses KnX, KnY, KnM and KnS or if
D
uses KnY, KnM and KnS with an ELC-PC/PA/PH, or
a ELCM-PH/PA, n must equal 4. For the ELC-PV n can be 1, 2, 3 or 4.
5. Flags:
M1095: matrix rotate/shift/output carry flag
M1097: matrix rotate/shift direction flag
Program Example 1:
When X0=ON, M1097=OFF means shift the matrix to the left by one bit for each false-to-true
transition of the instruction. The bit moved into the bit vacated by the shift is the bit shifted out of the
other end of the matrix. This bit shifted out of the matrix also goes to the Carry Bit M1095. The
resulting matrix after the shift is the matrix represented by D20-D22. The source matrix represented
by D0-D2 is unaffected.
X0
MBRP D0 D20 K3
RST M1097