Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Command Code 03, Read Content of Register T, C, D, Plc→Pc

4 . Communications

4.5.3 Command Code: 03, Read Content of Register (T, C, D)

Example: Read coils T20~T27 from Slave ID#01

PC→PLC “: 01 03 06 14 00 08 DA CR LF”

Sent message:

Field Name	ASCII
STX	:
Slave Address	01
Command code	03
Starting Address Hi	06
Starting Address Lo	14
Number of Points Hi	00
Number of Points Lo	08
Error Check (LRC)	DA
END 1	0D (Hex)
END 0	0A (Hex)

PLC→PC

“:01 03 10 00 01 00 02 00 03 00 04 00 05 00 06 00 07 00 08 B8 CR LF”

Feedback message:

Field Name	ASCII
STX	:
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
Data Lo (T24)	05
Data Hi (T25)	00
Data Lo (T25)	06

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