Eaton ELC-PB, Руководство по программированию

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E L C P r o g r a m m i n g M a n u a l
F o r m o r e i nf o r m a t i o n v i sit :
w w w. e a t o n . c o m
MN05003003E
3-90
API Mnemonic Operands Function
37 WSFL P
S, D, n
1
, n
2
Word Shift Left
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
1
* *
n
2
* *
WSFL, WSFLP: 9 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
: Starting source address
D
: Starting destination address
n
1
: Length of data to be shifted
n
2
: Number of registers to be shifted as a group
Description:
1. Shift
n
1
registers of
D
to the left by
n
2
registers. Shift
n
2
registers of
S
to the least significant
registers of
D.
The high
n
2
registers of
D
are moved to the Carry.
2. This instruction works best with the pulse instruction (WSFLP).
3. When using operand
S
and
D
for bit data types, the data types must be equal. For example,
if one of these bit or word types is used for
S
, it must also be used for
D
: KnX, KnY, KnM,
KnS and the other kind is T, C, D.
4. When using operand
S
and
D
bit data types, the Kn value must be equal.
5. Valid range of operand
n1
,
n2
: 1 ≤
n2
≤
n1
≤ 512
Program Example:
1. When X0 OFF
→
ON, the registers starting at D20~D35 will shift 4 registers to the left. And 4
registers from D10 will shift into the lower registers of the destination.
2. Please refer to the following n ~ r steps to perform WSFL instruction during a single scan.
n D35~D32
→
Carry
o D31~D28
→
D35~D32
p D27~D24
→
D31~D28
q D23~D20
→
D27~D24
r D13~D10
→
D23~D20 complete
1
3
4
5
2
4 registers in one group shift to the left
Carry
X0
WSFLP D10 K16 D20 K4
D13 D12 D11 D10
D35 D34 D33 D32 D31 D30 D29 D28 D27 D26 D25 D24 D23 D22 D21 D20