Delta AS Series Programming Manual page 469

AS Ser ies Pro gra mm in g M anu al
API Instruction code
0704
Device X

S
D
1
D
2

n
Data
type

S

D
1

D
2
n
Symbol
_6
Explanation
1. This instruction scans and stores the states of eight sequential input devices. S specifies the first input device in
the matrix scan.
2. D specifies the transistor output device Y as the first device in the matrix scan. When the conditional contact is
1
OFF, the states of the n devices starting from D
3. One row of inputs is refreshed every scan cycle. There are 16 inputs in a row, and the scan starts from the first row
and goes to the n
4. The eight input devices starting from the device specified by S are connected to the n output devices starting from
the device specified by D
switches, and stores the states in the devices starting from the device specified by D
5. You can connect up to 8 rows of input switches in parallel to get 64 inputs (8×8=64).
6. The interval between executions of this instruction should be longer than the time it takes for the states of the I/O
points on the module to be refreshed. Otherwise, the instruction cannot read the correct states of the inputs. See
6 - 1 9 0
MTR
Y M S T C

  


th
row.
to form the n rows of switches. The matrix scan reads the states of the n rows of
1
Operand
S, D , D , n
1 2
HC D FR SM

 

Pulse instruction 16-Bit instruction
－
： First input device in the matrix scan
S
First output device in the matrix
：
D
1
scan
First corresponding device in the
：
D
2
matrix scan
： Number of rows to scan
n
are OFF.
1
Function
Matrix input
SR E K 16# "$"
   
32-Bit instruction
－
AS
.
2
F