Chapter 5 Instruction Specifications

Logic operation Classification

Relational expression

number

Ladder symbol

Item

 

12d=s1 OR s2

13d=s1 AND s2

14d=s1 XOR s2

15d=s1 == s2

16d=s1 S== s2

17d=s1<>s2

18d=s1 S<> s2

19d=s1<s2

20 d=s1 S< s2

Instruction symbol

Instruction

Process descriptions

name

 

Logical OR d ← s1+s2

Logical

d ← s1 x s2

AND

 

Exclusive d ← s1 ⊕ s2

OR

= Relational When s1

= s2, d ← 1

expression When s1

≠ s2, d ← 0

Signed =

When s1 = s2, d ← 1

Relational

When s1 ≠ s2, d ← 0

expression

s1 and s2 are compared as

 

signed 32-bit binary.

<>

When s1 = s2, d ← 0

Relational

When s1 ≠ s2, d ← 1

expression

 

Signed <>

When s1

= s2, d ← 0

Relational

When s1

≠ s2, d ← 1

expression

s1 and s2 are compared as

 

signed 32-bit binary.

< Relational When s1

< s2, d ← 1

expression

When s1

≥ s2, d ← 0

Signed <

When s1

< s2, d ← 1

Relational

When s1

≥ s2, d ←0

expression

s1 and s2 are compared as

 

signed 32-bit binary.

I/O types used

[Bit]

d: Y, R, M

s1, s2: X, Y, R,

M [Word]

d:WY, WR, WM, Timer Counter

s1, s2: WX, WY, WR, WM, Timer Counter, Constant [Double word]

d:DY, DR, DM s1, s2: DX, DY, DR, DM, Constant

[Word]

d: Y, R, M

s1, s2: WX, WY, WR, WM, Timer Counter, Constant [Double word] d: Y, R, M

s1, s2: DX, DY, DR, DM, Constant

[Double word] d: Y, R, M

s1, s2: DX, DY, DR, DM, Constant

[Word]

d: Y, R, M

s1, s2: WX, WY, WR, WM, Timer · Counter, Constant [Double word] d: Y, R, M

s1, s2: DX, DY, DR, DM, Constant

[Double word] d: Y, R, M

s1, s2: DX, DY, DR, DM, Constant

[Word]

d: Y, R, M

s1, s2: WX, WY, WR, WM, Timer Counter, Constant [Double word] d: Y, R, M

s1, s2: DX, DY, DR, DM, Constant

[Double word] d: Y, R, M

s1, s2: DX, DY, DR, DM, Constant

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

z z z z z

z z z z z

Process

time (s)

MICRO-EH

62

33

86

46

36

49

42

33

66

60

48

108

60

46

48

40

70

50

Steps

4

4

6

4

4

6

4

4

6

4

6

6

4

6

6

4

6

6

Remarks

Upper case: B Middle case: W Lower case: DW

Upper case: B Middle case: W Lower case: DW

Upper case: B Middle case: W Lower case: DW

Upper case: W

Lower case: DW

Upper case: W

Lower case: DW

Upper case: W

Lower case: DW

5-7

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Image 57
Hitachi NJI-350B manual Number