Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Remarks, Data

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

LRC checksum: 01 H + 03 H + 07 H + 08 H + 00 H + 06 H = 19 H. Operate 2’s complement on 19H and the result is E7H. Store ‘E’(45 H) in the low byte of D113 and ‘7’ (37 H) in the low byte of D114.

Remarks:

ASCII mode communication data:

STX	‘: ’	Start word = ‘: ’ (3AH)
Address Hi	‘ 0 ’	Communication:
Address Lo	‘ 1 ’	8-bit address consists of 2 ASCll codes
Function Hi	‘ 0 ’	Function code:
Function Lo	‘ 3 ’	8-bit function consists of 2 ASCll codes
DATA (n-1)	‘ 2 ’	Data content:
…….	‘ 1 ’	n × 8-bit data consists of 2n ASCll
DATA 0	‘ 0 ’	codes
	‘ 2 ’
	‘ 0 ’
	‘ 0 ’
	‘ 0 ’
	‘ 2 ’
LRC CHK Hi	‘ D ’	LRC checksum:
LRC CHK Lo	‘ 7 ’	8-bit checksum consists of 2 ASCll codes
END Hi	CR	End word:
END Lo	LF	END Hi = CR (0DH), END Lo = LF(0AH)

LRC checksum: Operate 2’s complement on the summed up value from communication address to the end of data, i.e. 01 H + 03 H + 21 H + 02 H + 00 H + 02 H = 29 H, the operation result of 29H is D7H.

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