Delta Electronics Programmable Logic Controller DVP-PLC User Manual
Page 233
6 Application Instructions API 00-49
DVP-PLC Application Manual
6-21
API Mnemonic
Operands
Function
13
SMOV P
Shift Move
Controllers
ES/EX/SS SA/SX/SC EH/SV
Bit Devices
Word Devices
Program Steps
Type
OP
X Y M S K H
KnX
KnY KnM KnS T C D E F
S
*
*
*
*
*
*
*
*
*
m
1
*
*
m
2
*
*
D
*
*
*
*
*
*
*
*
n
*
*
SMOV, SMOVP: 11 steps
PULSE 16-bit 32-bit
ES EX SS SA SX SC EH SV ES EX SS SA SX SC EH SV ES EX SS SA SX SC EH SV
Operands:
S
: Source of data m
1
: Start digit to be moved of the source data m
2
: Number of digits (nibbles) to be moved of the
source data D: Destination device n: Start digit of the destination position for the moved digits
Explanations:
1.
This instruction is able to re-allocate or combine data.
When the instruction is executed, m
2
digits of contents
starting from digit m
1
(from high digit to low digit) of S will be sent to m
2
digits starting from digit n (from high digit
to low digit) of D.
2. Range:
m
1
= 1 ~ 4; m
2
= 1 ~ m
1
; n = m
2
~ 4
3.
See the specifications of each model for their range of use.
4.
M1168 is designated by SMOV working mode. When M1168 = On, the program is in BIN mode. When M1168 =
Off, the program is in BCD mode.
Program Example 1:
1.
When M1168 = Off (in BCD mode) and X0 = On, the 4
th
(thousand) and 3
rd
(hundred) digit of the decimal value
in D10 start to move to the 3
rd
(hundred) and 2
nd
(ten) digit of the decimal value in D20. 10
3
and 10
0
of D20
remain unchanged after this instruction is executed.
2.
When the BCD value exceeds the range of 0 ~ 9,999, PLC will determine an operation error and will not execute
the instruction. M1067, M1068 = On and D1067 records the error code OE18 (hex).
M1168
10
3
10
2
10
1
10
0
10
3
10
2
10
1
10
0
Unchanged
Unchanged
D10(BIN 16 bits)
D10(BCD 4 digits)
D20(BIN 16 bits)
D20(BCD 4 digits)
Shift move
Auto conversion
Auto conversion
M1001
X0
SMOV
D10
K2
D20
K3
K4
Before the execution, assume D10 = K1234 and D20 = K5678. After the execution, D10 will remain unchanged and
D20 will become K5128.