A&D Device Net.Interface AD-4402 OP-21 Instruction Manual - page 9
AD-4402 OP-21
Page 7
5.
5.
5.
5.Memory of
Memory of
Memory of
Memory of PLC
PLC
PLC
PLC
5.1.
5.1.
5.1.
5.1.Address Map
Address Map
Address Map
Address Map
The OUT DATA (4ch) is used for storing commands and parameters to the AD-4402.
The IN DATA (8ch) is used for storing reply data from AD-4402.
Caution
The interface needs 8 bytes for OUT DATA and 16 bytes for IN DATA in the
memory area of the PLC. Avoid crossing memory area of other slave devices.
These use BCD code.
5.1.1.
5.1.1.
5.1.1.
5.1.1.
OUT DATA (4ch), PLC to AD-4402
OUT DATA (4ch), PLC to AD-4402
OUT DATA (4ch), PLC to AD-4402
OUT DATA (4ch), PLC to AD-4402
bit15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
8
4
2
1
8
4
2
1
8
4
2
1
8
4
2
1
1st ch
Output data (10
3
)
Output data (10
2
)
Output data (10
1
)
Output data (10
0
)
bit15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
8
4
2
1
8
4
2
1
8
4
2
1
2nd ch
Output data
Output data (10
6
)
Output data (10
5
)
Output data (10
4
)
bit15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
8
7
6
5
4
3
2
1
3rd ch
Int
.
res.
Internal reservation
Command bit
bit15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
8
4
2
1
8
4
2
1
8
4
2
1
Last ch
Int
.
res.
Command No. (10
2
) Command No. (10
1
) Command No. (10
0
)
Explanation of the OUT DATA
Output data
The bits to be used for the output command. Refer to "5.3.Command"
Command bit
The bits to assign function and use to each command bit.
Refer to "5.2.Command Bit"
Command No.
The bits to specify the "command No.". Refer to "5.3.Command"
Flag R/
-
W
The bit to select the "read command" or write command".
Flag G/
-
N
The bit to select the "gross value" or "net value".
Int. res.(Internal reservation) Write zero.
Polarity of output data. 0: positive, 1: negative
Flag R/
-
W 0: Write, 1: Read
Command No. (10
3
)
Flag G/
-
N 0: Net, 1: Gross
Command request flag. 0: No request, 1: Request