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Siemens S7 Statement List (STL) by category Bit logic A And AN And Not O Or ON Or Not X Exclusive Or XN Exclusive Or Not FN Edge Negative FP Edge Positive ( ) Nesting = Assign R Reset S Set NOT Negate RLO SET Set RLO (=1) CLR Clear RLO (=O) Save RLO in BR SAVE Register Convert BTI ITB BTD ITD DTB DTR INVI INVD NEGI NEGD NEGR CAW CAD RND TRUNC RNDRND+ BCD to Integer Integer to BCD BCD to Integer Integer to Double Integer Double Integer to BCD Double Integer to Floating-Point Ones Complement Integer Ones Complement Double Integer Twos Complement Integer Twos Complement Double Integer Negate FloatingPoint Number Change Byte Sequence in ACC1 Word Change Byte Sequence in ACC1 Double Round Truncate Round to Lower Double Integer Round to Upper Double Integer Note: For Compare and Math I Integer (16 bit) Double Integer D (32 bit) Real – Floating R Point (32 bit) Compare ==I ==D ==R <>I <>D <>R >I >D >R >=I >=D >=R <I <D <R <=I <=D <=R if true RLO = 1 ACC2 is equal to ACC1 ACC2 is not equal to ACC1 ACC2 is greater then to ACC1 ACC2 is greater then equal to ACC1 ACC2 is less then to ACC1 ACC2 is less then equal to ACC1 Math Add Integer Constant (16, 32Bit) + +I +R -I -R *I *R /I /R +D -D *D /D MOD Floating ABS ACOS ASIN ATAN COS EXP LN SIN SQR SQRT TAN Add ACC1 and ACC2 Subtract ACC1 from ACC2 Multiply ACC1 and ACC2 Divide ACC2 by ACC1 Division Remainder Double Integer Point Math Absolute Value Arc Cosine Arc Sine Arc Tangent Cosine of Angles Exponential Value Natural Logarithm Sine of Angles Square Square Root Tangent of Angles Word logic AW AND Word AD AND Double Word OW OR Word OD OR Double Word XOW Exclusive Or Word Exclusive Or XOD Double Word Shift/Rotate SSI Shift Sign Integer Shift Sign Double SSD Integer SLW Shift Left Word SRW Shift Right Word Shift Left Double SLD Word Shift Right Double SRD Word Rotate Left Double RLD Word Rotate Right RRD Double Word Rotate ACC1 Left RLDA via CC 1 Rotate ACC1 Right RRDA via CC 1 Accumulator Toggle ACC1 with TAK ACC2 POP Pop accumulators PUSH Push accumulators ENT Enter ACC Stack LEAVE Leave ACC Stack DEC Decrement ACC INC Increment ACC Add ACC1 to +AR1 Address Register 1 Add ACC1 to +AR2 Address Register 2 Program Display BLD Instruction (Null) NOP 0 Null Instruction Formats B# W# L# S5Time# T# D# TOD# C# P# 2# 16# #Symbol // Byte (8 bit) Word (16 bit) Long (32 bit) S5 Time (2H46M30S0MS) IEC Time (24D20H31M23S648MS) IEC Date (2007-10-28) Time of Day (23:59:59.999) BCD Pointer Address Binary Hexadecimal Local stack variable Comment Program Control CALL Call FC,FB,SFC,SFB Example parameter passing CALL FC1 or FB1, DB1 PARAM1 := I0.0 PARAM2 := “Example”.Test CC Conditional Call UC Unconditional Call BE Block End Block End BEC Conditional Block End BEU Unconditional Save RLO in MCR MCR( Stack, Begin MCR )MCR End MCR MCRA Activate MCR MCRD Deactivate MCR Load L Jumps JU JL JC JCN LAR2 <D> JCB JNB JBI JNBI JO JOS JZ JN JP JM JPZ JMZ JUO LOOP Jump Jump Jump Jump Jump BR Jump BR Jump Jump Jump Jump Jump Jump Jump Jump Jump Jump Zero Jump Loop Unconditional to Labels if RLO = 1 if RLO = 0 if RLO = 1 with if RLO = 0 with if if if if if if if if if if BR = 1 BR = 0 OV = 1 OS = 1 Zero Not Zero Plus Minus Plus or Zero Minus or if Unordered Data Blocks OPN Open a Data Block Exchange Shared DB CDB and Instance DB Load Length of L DBLG Shared DB in ACC1 Load Number of L DBNO Shared DB in ACC1 Load Length of L DILG Instance DB in ACC1 L DINO L STW LAR1 LAR1 <D> LAR1 AR2 LAR2 CAR Transfer T T STW TAR1 TAR1 <D> TAR1 AR2 TAR2 TAR2 <D> Load Load Status Word into ACC1 Load Address Register 1 from ACC1 Load Address Register 1 with Double Integer (32-Bit Pointer) Load Address Register 1 from Address Register 2 Load Address Register 2 from ACC1 Load Address Register 2 with Double Integer (32-Bit Pointer) Exchange Address Register 1 with Address Register 2 Transfer Transfer ACC1 into Status Word Transfer Address Register 1 to ACC1 Transfer Address Register 1 to Destination (32Bit Pointer) Transfer Address Register 1 to Address Register 2 Transfer Address Register 2 to ACC1 Transfer Address Register 2 to Destination (32Bit Pointer) Timers/Counters (0 to 255) Enable Timer/Counter FR (Free) Load Current Timer/Counter Value L into ACC1 as Integer (i.e. L T 32) Load Current Timer/Counter Value LC into ACC1 as BCD (i.e. LC T 32) R Reset Timer/Counter Set Counter Preset S Value (i.e. S C 15) SD On-Delay Timer Retentive On-Delay SS Timer SP Pulse Timer SF Off-Delay Timer SE Extended Pulse Timer CD Counter Down CU Counter Up OBs 1 10-17 20-23 30-38 40-47 80 81 82 83 84 85 86 87 100 101 102 121 122 Main Program Scan Time of Day Time Delay Cyclic (Periodic) Hardware Time Error Power Supply Error Diagnostic Interrupt Insert/Remove Module Interrupt CPU Hardware Fault Program Cycle Error Rack Failure – Missing Profibus device Communication Error Warm restart Hot restart Cold restart Programming Error I/O Access Error Load Number of Instance DB in ACC1 v2.0