Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Ascii

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

4.5.2 Command Code: 02, Read Status of Contact (Input point X is included)

Example: Read status of contact Y024~Y070 from Slave ID#01

PC→PLC “: 01 02 05 14 00 25 BF CR LF”

Sent message:

Field Name	ASCII
STX	:
Slave Address	01
Command code	02
Starting Address Hi	05
Starting Address Lo	14
Number of Points Hi	00
Number of Points Lo	25
Error Check (LRC)	BF
END 1	0D (Hex)
END 0	0A (Hex)

Assume Number of Points in sent message is n (Dec), quotient of n/8 is M and the remainder is N. When N = 0, Bytes Count in feedback message will be M; when N≠0, Bytes Count will be M+1.

PLC→PC “: 01 01 05 CD 6B B2 0E 1B E5 CR LF”

Feedback message:

Field Name	ASCII
STX	:
Slave Address	01
Command code	02
Bytes Count	05
Data (Coils Y033…Y024)	CD
Data (Coils Y043…Y034)	6B
Data (Coils Y053…Y044)	B2
Data (Coils Y063…Y054)	0E
Data (Coils Y070…Y064)	1B
Error Check (LRC)	E5
END 1	0D (Hex)
END 0	0A (Hex)

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