Omron FQM1-MMA21, FQM1-CM001, FQM1-MMP21 operation manual Abcde, Nul Nul

Programming							Appendix A
Data	Operand	Data form	Symbol	Range	Application example
Text string	Text string data is stored in ASCII		---			'ABCDE'
	(one byte except for special charac-
	ters) in order from the leftmost to the
						'A'		'B'
	rightmost byte and from the right-
						'C'		'D'
	most (lower) to the leftmost word.
						'E'		NUL
	00 hex (NUL code) is stored in the
	rightmost byte of the last word if
						41	42
	there is an odd number of charac-
						43	44
	ters.
						45	00
	0000 hex (2 NUL codes) is stored in
	the leftmost and rightmost vacant					'ABCD'
	bytes of the last word + 1 if there is
	an even number of characters.

'A' 'B'

'C' 'D'

NUL NUL

41 42

43 44

00 00

ASCII characters that can be used in a text string includes alphanumeric characters, Katakana and sym- bols (except for special characters). The characters are shown in the following table.

Upper 4 bits

Lower 4 bits

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