Sewha SI 4010 - Page 39

DIGITAL WEIGHING INDICATOR
SI 4010
39
6-8-2. Write Command
To make Current Weight as Zero
ASCII : STX ID(2Byte) WZER ETX
HEX : 02 30 31 57 5A 45 52 03 (ID No. : 01)
SI4010 response
Normal : ACK
Error : NAK
TARE
ASCII : STX ID(2Byte) WTAR ETX
HEX : 02 30 31 57 54 41 52 03 (ID No. : 01)
SI4010 response
Normal : ACK
Error : NAK
TARE Reset
ASCII : STX ID(2Byte) WTRS ETX
HEX : 02 30 31 57 54 52 53 03 (ID No. : 01)
SI4010 response
Normal : ACK
Error : NAK
TIME Setting
ASCII : STX ID(2Byte) WTIM Time data(6byte)
ETX
HEX : 02 30 31 57 54 49 4D 31 32 30 30 30 30 03
(ID No. : 01)(Time data : 12:00:00)
SI4010 response
Normal : ACK
Error : NAK
DATE Setting
ASCII : STX ID(2Byte) WDAT
Time data (6byte) ETX
HEX : 02 30 31 57 44 41 54 30 39 30 39 30 34 03
(ID No. : 01)(Time data : 09/09/04)
SI4010 response
Normal : ACK
Error : NAK
P/N Change
ASCII : STX ID(2Byte) WPNO
P/N data (2byte) ETX
HEX : 02 30 31 57 50 4E 4F 31 31 03 (ID No. :
01)(P/N data : 11)
SI4010 response
Normal : ACK
Error : NAK
 How to Calculate Check sum.
Sum the value from “STX” to “ETX” and converts to ASCII(2byte) and transfer.
Convert the Sum value(HEX) to ASCII and transmit(28byte) .
ex) The sum HEX value from STX to ETX(02,30,31,52,43,57,54,03) is 1A6h.
Then, divide 1A6h by 100h(1A6h/100h). the rest of result is A6h.
Calculated remainder value is A6h, then convert A6h to ASCII, 41(A), 36(6), and transfer.