DVP-ES2-EX2-SS2-SA2-SX2-Operation Manual

DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming
Example:
Step 6: Repeat step 2 – 5 until the operation of all the messages are completed. The final
value obtained in the CRC register is the CRC checksum. Care should be taken when
placing the LOW byte and HIGH byte of the obtained CRC checksum.
Read 2 continuous data stored in the registers of the drive at address 01H (see the table
below). The start register is at address 2102H
Inquiry message:
Response message:
Field Name Data (Hex) Field Name Data (Hex)
Address 01 H Address 01 H
Function 03 H Function 03 H
Start data
address
Number of data
(count by word)
21 H
02 H
Number of data
(count by byte)
04 H
00 H Content of data address 17 H
02 H
2102H
70 H
CRC CHK Low 6F H Content of data address 00 H
CRC CHK High F7 H
2103H
00 H
Example program of RS-485 communication:
CRC CHK Low
CRC CHK High
FE H
5C H
M1002
MOV
H86
D1120
Setting communication protocol 9600, 7, E, 1
SET
M1120
Communication protocol latched
Transmission
request
X0
Pulse
X20
Receiving
completed
M1123
MOV K100 D1129 Setting communication time out 100ms
Write transmitting data in advance
SET M1122 Sending request
RS D100 K2 D120 K8
Process of receiving data
RST M1123 Receiving completed and flag reset
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