Hitachi NJI-350B manual Basic instructions relational box, Wx, Wy, Wr, Dx, Dy, Dr

Chapter 5 Instruction Specifications

3.Basic instructions (relational box)

Classification	numberItem	Ladder symbol	Instruction symbol	Instruction	Process descriptions	I/O types used
				name
box	28	s1	LD	= Relational When s1 = s2: Continuity		[Word]
Relational		==	(s1==	box	When s1 ≠ s2:	WX, WY, WR,
			s2)		Noncontinuity	WM,
		s2
						Timer Counter
						[Double word]
		s1	AND			DX, DY, DR,
			(s1==			DM

==s2)

s2		Constant
	OR
s1	(s1==

==s2)

s2

29	s1	LD	Signed =	When s1 = s2: Continuity	DX, DY, DR,
		(s1	Relational	When s1 ≠ s2:	DM
	S==	S==	box	Noncontinuity
	s2	s2)		s1 and s2 are compared as	Constant
				signed 32-bit binary.
	s1	AND
		(s1
	S==	S==
	s2	s2)
		OR
	s1	(s1
	S==	S==
		s2)
	s2
30	s1	LD	<>	When s1 = s2:	[Word]
		(s1<	Relational	Noncontinuity	WX, WY, WR,
<>		>s2)	box	When s1 ≠ s2: Continuity	WM,
	s2				Timer Counter
					[Double word]
		AND			DX, DY, DR,
	s1	(s1<			DM
<>		>s2)			Constant
	s2
		OR
	s1	(s1<
<>		>s2)
	s2
31		LD	Signed <>	When s1 = s2:	DX, DY, DR,
	s1	(s1	Relational	Noncontinuity	DM
	S<>	S<>	box	When s1 ≠ s2: Continuity
		s2)		s1 and s2 are compared as	Constant
	s2
				signed 32-bit binary.
		AND
	s1	(s1
	S<>	S<>
	s2	s2)
		OR
	s1	(s1
	S<>	S<>
		s2)
	s2

R7F4	R7F3	R7F2	R7F1	R7F0
DER ERR SD			V	C
z	z	z	z	z

z z z z z

z z z z z

z z z z z

Process

time (∝ s)

MICRO-EH

27

35

35

26.8

34.5

34.5

Steps Remarks

5*1

6*2

7Upper

8case: W

Lower case: DW

5*2

5*1

6*2

7Upper

8case: W

Lower case: DW

5*2

8

*1: In the case of word, it requires five steps for LD (s1†s2) and AND (s1†s2), and six steps for OR (s1†s2).

*2: In the case of double word, for LD (s1†s2) and AND (s1†s2), it requires five steps when the combination of s1 and s2 is I/O and I/O, six steps when the combination is either I/O and constant or constant and I/O, and seven steps when the combination is constant and constant. For OR (s1†s2), one step is added respectively.

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