A

Table A-1. Instruction Timing

Function

 

 

Enabled

 

 

Disabled

 

 

Increment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Group

Function

311

313

331

340/41

311

313

331

340/41

311

313

331

340/41

Size

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Timers

On-Delay Timer

146

81

80

42

105

39

38

21

15

 

Off-Delay Timer

98

47

44

23

116

63

58

32

9

 

Timer

122

76

75

40

103

54

53

30

15

Counters

Up Counter

137

70

69

36

130

63

62

33

11

 

Down Counter

136

70

69

37

127

61

61

31

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Math

Addition (INT)

76

47

46

24

41

0

1

0

13

 

Addition (DINT)

90

60

60

34

41

1

0

0

13

 

Subtraction (INT)

75

46

45

25

41

0

1

0

13

 

Subtraction (DINT)

92

62

62

34

41

1

0

0

13

 

Multiplication (INT)

79

49

50

28

41

0

1

0

13

 

Multiplication (DINT)

108

80

101

43

41

1

0

0

13

 

Division (INT)

79

51

50

27

41

0

1

0

13

 

Division (DINT)

375

346

348

175

41

1

0

0

13

 

Modulo Division (INT)

78

51

49

27

41

0

1

0

13

 

Modulo Div (DINT)

134

103

107

54

41

1

0

0

13

 

Square Root (INT)

153

124

123

65

42

0

1

0

9

 

Square Root (DINT)

268

239

241

120

42

0

0

1

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Relational

Equal (INT)

66

35

36

19

41

1

1

0

9

 

Equal (DINT)

86

56

54

29

41

1

0

0

9

 

Not Equal (INT)

67

39

35

22

41

1

1

0

9

 

Not Equal (DINT)

81

51

51

28

41

1

0

0

9

 

Greater Than (INT)

64

33

35

20

41

1

1

0

9

 

Greater Than (DINT)

89

59

58

32

41

1

0

0

9

 

Greater Than/Eq (INT)

64

36

34

19

41

1

1

0

9

 

Greater Than/Eq (DINT)

87

58

57

30

41

1

0

0

9

 

Less Than (INT)

66

35

 

19

41

1

1

0

9

 

Less Than (DINT)

87

57

 

30

41

1

1

0

9

 

Less Than/Equal (INT)

66

36

34

21

41

1

1

0

9

 

Less Than/Equal (DINT)

86

57

56

31

41

1

1

0

9

 

Range (INT)

92

58

54

29

46

1

0

1

15

 

Range(DINT)

106

75

57

37

45

0

0

0

15

 

Range(WORD)

93

60

54

29

0

0

0

0

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes: 1. Time (in microseconds) is based on Release 5.01 of Logicmaster 90-30/20 software for Models 311, 313, 340, and 341 CPUs (Release 7 for the 331).

2.For table functions, increment is in units of length specified.; for bit operation functions, microseconds/bit.; for data move functions, microseconds/number of bits or words.

3.Enabled time for single length units of type %R, %AI, and %AQ.

4.COMMREQ time has been measured between CPU and HSC.

5.DOIO is the time to output values to discrete output module.

6.Where there is more than one possible case, the time indicated above represents the worst possible case.

Timing information for the Micro PLC: See the Series 90Micro Programmable Logic Controller User’s Manual (GFK-1065B or later) for this information.

Timing information for 350 and 360 Series PLCs: See page A-6 and following.

A-2

Series 90-30/20/Micro Programmable Controllers Reference Manual–September 1998

GFK-0467K

Page 268
Image 268
GE 90-30/20/Micro manual Table A-1. Instruction Timing, 340/41 311