Delta ASDA-A3 Series User Manual page 470

ASDA-A3
Read / write with communication:
2.
To read from or write to the data array through Modbus, use the communication command 0x10
to write consecutively, 0x06 to write single data, and 0x03 to read consecutively. First, use a
consecutive writing command to write 100 to Data array #11, 200 to Data array #12, and 300 to
Data array #13. When reading, use a single data writing command to set the start address as
Data array #11, and then use a consecutive reading command to read P5.011 - P5.013 (Data
array #11 and #12). This reads two values, so P5.011 is incremented by 2 and then it reads
Data array #13.
Communi-
cation
Packet
Cmd
1 0x10
2 0x10
Communi-
cation
Packet
Cmd
4 0x06
5 0x03
6 0x03
Parameter
P5.011
Address for
reading / writing
Window for
reading / writing
P5.100
Window #3 for
reading / writing
P5.101
Window #4 for
reading / writing
P5.102
Window #5 for
reading / writing
P5.103
Window #6 for
reading / writing
Writing to the data array
Start Data
address size
Low bit
6
P5.011 11
words
6
P5.011 13
words
Reading the data array
Data
Start
address
size
Low bit
P5.011 - 11
6
P5.011 11
words
6
P5.011 13
words
Table 7.2.1.2 Group 2 - reading and writing the data array
Description
Specify the address for reading from
or writing to the data array
Description
Read from or write to the address
specified by P5.011.
Read from or write to the first
address following the address
specified by P5.011.
Read from or write to the second
address following the address
specified by P5.011.
Read from or write to the third
address following the address
specified by P5.011.
P5.011 P5.012
High bit Low bit
0 100
0 300
P5.011 P5.012
High bit Low bit
0 -
0 100
0 300
Example 1
200
Example 1
Address Content
200 1234
201 2345
202 3456
203 4567
Motion Control
P5.013
High bit Low bit High bit
0 200 0
0 0 0
P5.013
High bit Low bit High bit
- - -
0 200 0
0 0 0
Example 2
797
Example 2
Address Content
797 5678
798 6789
799 7890
x 0
7
7-67