Cmd (Command Code) And Data - Delta DVP-ES2 Operation Manual

DVP- ES2 / EX2 / SS2 / SA2 / SX2 / SE&TP O p e r a t i on Ma n ua l - Pr ogr am m i ng
Example, ASCII codes for communication address 16 in Decimal. (16 in Decimal = 10 in Hex)
(ADR 1, ADR 0)='1','0''1'=31H, '0' = 30H

4.2.2 CMD (Command code) and DATA

The content of access data depends on the command code.
Available setting for command code:
CMD(Hex)
01 (01 H) Read status of contact
02 (02 H) Read status of contact
03 (03 H) Read content of register
05 (05 H) Force ON/OFF single contact
06 (06 H) Set content of single register
15 (0F H) Force ON/OFF multiple contacts
16 (10 H) Set content of multiple registers
17 (11 H) Retrieve information of Slave
Simultaneous data read/write in a
23 (17 H)
polling of EASY PLC LINK
Example: Read devices T20~T27 (address: H0614~H61B) from Slave ID#01(station number)
PC→PLC
": 01 03 06 14 00 08 DA CR LF"
Sent massage:
Field name
STX
Slave Address
Command code
Starting Address High
Starting Address Low
Number of Points High
Number of Points Low
LRC checksum
END
PLC→PC
": 01 03 10 00 01 00 02 00 03 00 04 00 05 00 06 00 07 00 08 C8 CR LF"
Responded massage:
Field name
STX
Slave Address
Command code
Bytes Count
4 - 4
Explanation
ASCII
:
01
03
06
14
00
08
DA
CR LF
ASCII
:
01
03
10
Device
S, Y, M, T, C
S, X, Y, M,T, C
T, C, D
S, Y, M, T, C
T, C, D
S, Y, M, T, C
T, C, D
None
None
Hex
3A
30 31
30 33
30 36
31 34
30 30
30 38
44 41
0D 0A
Hex
3A
30 31
30 33
31 30