Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual CMD Command code and Data, Field Name Example Hex

DVP - ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

4.3.2 CMD (Command code) and DATA

The content of access data depends on the command code. For descriptions of available command codes, please refer to 4.2.2 in this chapter.

Example: read consecutive 8 words from address 0614H~H61B (T20~T27) of PLC Slave ID#1.

PC→PLC

“ 01 03 06 14 00 08 04 80” Sent message:

Field Name	Example (Hex)
START	No data input ≥ 10 ms
Slave Address	01
Command code	03
Starting Address	06
	14
Number of Points	00
	08
CRC CHK Low	04
CRC CHK High	80
END	No data input ≥ 10 ms

PLC→PC

“01 03 10 00 01 00 02 00 03 00 04 00 05 00 06 00 07 00 08 72 98” Feedback message:

Field Name	Example (Hex)
START	No data input ≥ 10 ms
Slave Address	01
Command code	03
Bytes Count	10
Data Hi (T20)	00
Data Lo (T20)	01
Data Hi (T21)	00
Data Lo (T21)	02
Data Hi (T22)	00
Data Lo (T22)	03
Data Hi (T23)	00
Data Lo (T23)	04
Data Hi (T24)	00

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