`
77
Appendix 2. <How-to-Use the Extended Command Mode>
1. BCC (Check sum) used. (Set F25 – 00)
TO →
INDICATOR
Command Description Indicator Response
STX ID. NO.
WZER BCC ETX
Command to set “ZERO”
STX ID. NO. WZER ACK BCC ETX
or
STX ID. NO. WZER NAK BCC ETX
Format when Commanded by PC▶
STX(1) ID.NO.(2) COMMAND(4) BCC(2) ETX(1)
STX ID.NO WZER A9 (BCC) ETX
02H 30H 31H 57H 5AH 45H 52H 41H 39H 03H
Calculation on the Check※ -Sum computes the total sum of values from “STX” to prior to
“BCC,” and only transmits single digit and double digit numbers in the range of 10’s.
For example, if the calculated Check-Sum value is “1A9,” then the last two characters
“A” and “9” will be converted to ASCII and be transmitted as “41H” and “39H.”
(Recommended) To prevent DATA ERROR, BCC is recommended for use.
Indicator Data Transmission Format▶
STX(1) ID.NO.(2) COMMAND(4) ACK(1) BCC(2) ETX(1)
STX ID.NO. WZER ACK AF(BCC) ETX
2H 30H 31H 57H 5AH 45H 52H 06H 41H 46H 03H
● ACK :06H = Transmission Complete (Normal Operation) , NAK : 15H Transmission
Unsuccessful (Re-transmit)
● BCC : 30H + 31H + 57H + 5AH + 45H + 52H + 06H= 1AFH
To Next Page
Loading...
