Siemens PLC instruction bilingual table

Instruction (full English meaning): Instruction meaning

1. LD (Load): Make contact

2. LDN (Load Not): Break contact

3. A (And): Used for series connection of make contacts

4. AN (And Not): Used for series connection of break contacts

5. O (Or): Used for parallel connection of make contacts

6. ON (Or Not): Used for parallel connection of break contacts

7. = (Out): Used for coil output

8. OLD (Or Lode): Block or

9. ALD (And Lode): Block and

10. LPS (Logic Push): Logic push to stack

11. LRD (Logic Read): Logic read from stack

12. LPP (Logic Pop): Logic Pop

13. NOT (not): Not

14. NOP (No Operation Performed): No Operation

15. AENO (And ENO): AND operation at the instruction box output terminal ENO

16. S (Set): Set to 1

17. R (Reset): Reset to zero

18. P (Positive): Rising edge

19. N (Negative): Falling edge

20. TON (On_Delay Timer): On-delay timer

21. TONR (Retentive On_Delay Timer): Retentive on-delay timer

22. TOF (Off_Delay Timer): Off-delay timer

23. CTU (Count Up): Up counter

24. CTD (Count Down): Count Down

26. ADD (add): Addition

//ADD_I (_I represents an integer)

ADD_DI (DI represents a double-byte integer)

ADD-R (R represents a real number) They all perform addition operations, but the magnitude of the numbers is different.

27. SUB (Subtract): Subtraction

28. MUL (Multiply): Multiplication

29. DIV (Divide): Division

30. SQRT (Square root): Square root

31. LN (Napierian Logarithm): Natural logarithm

32. EXP (Exponential): Exponential

33. INC_B (Increment): Increment by 1

// Where _B represents the data type, and W (Word), DW (Double Word), and the following are all similar.

34. DEC_B (Decrement): subtract 1

35. WAND_B (Word and): logical AND

36. WOR_B (Word or): logical OR

37. WXOR_B (Word exclusive or): logical XOR

38. INV_B (Inverse): negation

39. MOV_B (Move): data transfer

40. BLKMOV_B (Block Move): block data transfer

41. SWAP (Swap): byte swap

42. FILL (Fill): word fill

43. ROL_B (Rotate Left): circular left shift

44. ROR_B (Rotate Right): circular right shift

45. SHL_B (Shift Right leftward): Move left

46. SHR_B (Shift Right rightward): Move right

47. SHRB (Shift buffer): Register shift

48. STOP (Stop): Pause

49. END /MEND (End /Mend): Conditional/Unconditional end

50. WDR (Watch dog reset): Watchdog reset

51. JMP (Jump): Jump

52. LBL (Label): Jump label

53. FOR (For loop): Loop

54. NEXT (Next): End of loop

55. SBR (Subprogram Regulating): Subroutine call

56. SBR_T (Subprogram Regulating Take): Subroutine call with parameters

57. SCR (Sequence Control): Step Start

58. SCRT (Sequence Control Transfer): Step Transfer

59. SCRE (Sequence Control End): Step End

60. AD_T_TBL (Add data to table): Fill data table

61. FIFO (First in First out): First in first out

62. LIFO (Last in First out): Last in first out

63. TBL_FIND (Table Find): Table lookup

64. BCD_I (Binary Coded Decimal _I): Convert BCD code to integer

65. I_BCD (I_Binary Coded DecimaL): Convert integer to BCD code

66. B_I (Bit to int): Convert byte to integer

67. I_B (int to bit): Convert integer to byte

68. DI_I (Double int to int): Convert double integer to integer

69. I_DI (int to double int): Convert integer to double integer

70. ROUND (Round): Convert real number to double integer

71. TRUNC (Trunc): Convert 32-bit real number to integer part (discard fractional part and round up)

72. DI_I (double int to int): Convert double integer to real number

73. ENCO (Encode): Encoding

74. DECO (Decode): Decoding

75. SEG (Segment decoder): Seven-segment display decoder

76. ATH (ASCII code turn hex): Convert ASCII code to hexadecimal

77. HTA (Hexadecimal to ascii): Convert hexadecimal to ASCII code

78. ITA (// int to ascii): Convert integer to ASCII code

79. DTA (// double int to ascii): Convert double integer to ASCII code

80. RTA (// real to ascii): Convert real number to ASCII code

81. ATCH (//attach): Disconnect

82. DTCH (Depatch): Detach

83. HDEF (High speed counter definition): High-speed counter definition

84. HSC (High Speed Counter): Start high-speed counter

85. PLS (Pulse): Pulse output

86. READ_RTC (Read real time clock): Read real-time clock

87. SET_RTC (Set real time clock): Write real-time clock

88. XMT (Transmitter): Free transmission

89. RCV (Receive): Free reception

90. NETR (Net read): Network read

91. NETW (Net write): Network write

92. GET_ADDR (Get address): Get port address

93. SET_ADDR (Set address): Set port address

94. PID (Proportional Integral Differential): Proportional-Integral-Differential regulator.