Delta AS Series Programming Manual page 1304

9. Most of the parameters in Delta inverter are also displayed in the decimal format. Use the following formula to
convert the parameters.
Example: The index address of PXX-YY=0x2000 + XX (hexadecimal);
The sub index address is YY+1 (hexadecimal)
The index address of P10-15 = 0x2000 + 0x000A = 0x200A
The sub index address is 0x0F+1= 0x10
10. Since this instruction uses SDO (Service Data Objects) and the communication mode is one transmission (one
sending/one receiving) at a time, and the communication right is shared with the high-speed output instructions.
When writing PLC programs, bear the followings in mind.
* It is suggested NOT to use 2 COPRW instructions or communication at a time in one scan cycle.
* It is suggested NOT to use this instruction in a function block. Because when this instruction is written in a function
block, there will be 2 POU in the PLC program and when the function block is called, 2 instructions will be enabled
at the same time.
11. The request codes for normal SDO are 16#0021 and 16#0041, available for PLC with firmware V1.04.80 or later.
12. When the request code is 16#0021, S
data to write into the slave. For example, if S
data in D101 ~ D108 to the slave in the following order, lower 8-bit in D101, upper 8-bit in D101, lower 8-bit in D102,
upper 8-bit in D102 and so forth.
13. When the request code is 16#0041, when received responses from the slave, this instruction stores the data length
("n" byte) in S and data in S
5
store the data Byte[0], Byte[1].. Byte[14] in the following order, lower 8-bit in D101, upper 8-bit in D101, lower 8-bit in
D102, upper 8-bit in D102 and so forth.
14. The maximum data length is 255 bytes. To prevent too many Normal SDO transmissions, if the data length exceeds
255 bytes, PLC only sends or receives 255 bytes.
is the data length ("n" byte) to write into the slave. S
5
is specified as D100 and the value in S
5
+1~ S +((n+1) / 2). For example, if received 15 bytes of data length, D100 is 15 and
5 5
Ch ap te r 6 App l ied Ins tr uc ti ons
+1~ S +((n+1) / 2) is the
5 5
is 16. This instruction sends
5
6_
6 - 1 0 2 5