Statement List (STL) - DCE FEL ČVUT v Praze

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Shift and Rotate Instructions Examples Contents ACCU1-H ACCU1-L Bit 31 . . . . . . . . . . 16 15 . . . . . . . . . . 0 before execution of RLD 4 0101 1111 0110 0100 0101 1101 0011 1011 after execution of RLD 4 1111 0110 0100 0101 1101 0011 1011 0101 Example 1 STL Explanation L MD2 //Load value into ACCU 1. RLD 4 //Rotate bits in ACCU 1 four places to the left. T MD8 //Transfer result to MD8. Example 2 STL Explanation L +3 //Load value +3 into ACCU 1. L MD20 //Load contents of ACCU 1 into ACCU 2. Load value of MD20 into ACCU 1. RLD //Rotation number is value of ACCU 2- L- L => Rotate bits in ACCU 1 three places to the left. JP NEXT //Jump to NEXT jump label if the bit rotated out last (CC 1) = 1. Statement List (STL) for S7-300 and S7-400 Programming 11-16 A5E00706960-01
11.2.3 RRD Rotate Right Double Word (32-Bit) Formate Description Status word RRD RRD Address Data type Description Shift and Rotate Instructions integer, unsigned number of bit positions to be rotated, range from 0 to 32 RRD (rotate right double word) rotates the entire contents of ACCU 1 to the right bit by bit. The bit places that are vacated by the rotate instruction are filled with the signal states of the bits that are shifted out of ACCU 1. The bit that is rotated last is loaded into the status bit CC 1. The number of bit positions to be rotated is specified either by the address or by a value in ACCU 2-L-L. RRD : The number of rotations is specified by the address . The permissible value range is from 0 to 32. The status word bits CC 0 and OV are reset to 0 if is greater than zero. If equals zero, then the rotate instruction is regarded as a NOP operation. RRD: The number of rotations is specified by the value in ACCU 2- L- L. The possible value range is from 0 to 255. The status word bits are reset to 0 if the contents of ACCU 2-L-L are greater than zero. BR CC 1 CC 0 OV OS OR STA RLO /FC writes: - x x x - - - - - Statement List (STL) for S7-300 and S7-400 Programming A5E00706960-01 11-17
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s SIMATIC Statement List (STL) for
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Preface Purpose This manual is your
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Preface Online Help The manual is c
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Contents 1 Bit Logic Instructions 1
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Contents 8 Floating-Point Math Inst
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Contents 14 Accumulator Instruction
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1 Bit Logic Instructions 1.1 Overvi
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1.2 A And Format A Address Data ty
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1.4 O Or Format O Address Data typ
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1.6 X Exclusive Or Format X Addres
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1.8 O And before Or Format Descript
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1.10 AN( And Not with Nesting Open
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1.14 XN( Exclusive Or Not with Nest
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Example Statement List Program A( O
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1.17 R Reset Format R Address Data
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1.19 NOT Negate RLO Format Descript
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1.21 CLR Clear RLO (=0) Format Desc
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1.23 FN Edge Negative Format FN Bi
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1.24 FP Edge Positive Format FP Bi
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2 Comparison Instructions 2.1 Overv
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2.3 ? D Compare Double Integer (32-
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3 Conversion Instructions 3.1 Overv
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3.3 ITB Integer (16-Bit) to BCD For
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3.5 ITD Integer (16 Bit) to Double
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Conversion Instructions 3.7 DTR Dou
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Conversion Instructions 3.9 INVD On
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Conversion Instructions 3.11 NEGD T
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Conversion Instructions 3.13 CAW Ch
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3.15 RND Round Format Description S
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3.17 RND+ Round to Upper Double Int
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4 Counter Instructions 4.1 Overview
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4.3 L Load Current Counter Value in
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4.5 R Reset Counter Format Descript
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4.7 CU Counter Up Format CU Counte
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5 Data Block Instructions 5.1 Overv
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5.3 CDB Exchange Shared DB and Inst
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Data Block Instructions 5.6 L DILG
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6 Logic Control Instructions 6.1 Ov
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6.2 JU Jump Unconditional Format De
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6.4 JC Jump if RLO = 1 Format Descr
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6.6 JCB Jump if RLO = 1 with BR For
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6.8 JBI Jump if BR = 1 Format Descr
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6.10 JO Jump if OV = 1 Format Descr
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6.12 JZ Jump if Zero Format Descrip
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6.14 JP Jump if Plus Format Descrip
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6.16 JPZ Jump if Plus or Zero Forma
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6.18 JUO Jump if Unordered Format D
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7 Integer Math Instructions 7.1 Ove
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Integer Math Instructions 7.3 +I Ad
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Integer Math Instructions 7.5 *I Mu
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Example: 13 divided by 4 Contents o
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Example 3 STL Explanation L MD20 L
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Integer Math Instructions 7.9 -D Su
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Integer Math Instructions 7.11 /D D
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Integer Math Instructions 7.12 MOD
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8 Floating-Point Math Instructions
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8.3 Floating-Point Math Instruction
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Floating-Point Math Instructions 8.
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9 Load and Transfer Instructions 9.
Page 133 and 134: Contents of ACCU 1 Load and Transfe
Page 135 and 136: Load and Transfer Instructions 9.4
Page 139 and 140: 9.9 T Transfer Format Description S
Page 145 and 146: 10 Program Control Instructions 10.
Page 147 and 148: 10.3 BEC Block End Conditional Form
Page 149 and 150: 10.5 CALL Block Call Format Descrip
Page 151 and 152: 10.6 Call FB Format Description CAL
Page 153 and 154: 10.7 Call FC Format Description CAL
Page 155 and 156: 10.8 Call SFB Format Description CA
Page 157 and 158: 10.9 Call SFC Format Description CA
Page 159 and 160: 10.12 CC Conditional Call Format De
Page 161 and 162: 10.14 MCR (Master Control Relay) !
Page 163 and 164: 10.15 Important Notes on Using MCR
Page 165 and 166: Example Program Control Instruction
Page 167 and 168: 10.18 MCRA Activate MCR Area Format
Page 169 and 170: 11 Shift and Rotate Instructions 11
Page 171 and 172: Example 1 STL Explanation L MW4 //L
Page 173 and 174: Examples Shift and Rotate Instructi
Page 183: 11.2.2 RLD Rotate Left Double Word
Page 187 and 188: 11.2.4 RLDA Rotate ACCU 1 Left via
Page 189 and 190: 12 Timer Instructions 12.1 Overview
Page 191 and 192: Time Base Timer Instructions Bits 1
Page 193 and 194: 12.3 FR Enable Timer (Free) Format
Page 195 and 196: Timer Instructions 12.4 L Load Curr
Page 197 and 198: Timer Instructions 12.5 LC Load Cur
Page 199 and 200: 12.6 R Reset Timer Format R Timer
Page 201 and 202: Enable input Start input Reset inpu
Page 205 and 206: Enable Input Start Input Reset Inpu
Page 211 and 212: 13 Word Logic Instructions 13.1 Ove
Page 213 and 214: Examples Word Logic Instructions Bi
Page 225 and 226: 14 Accumulator Instructions 14.1 Ov
Page 227 and 228: 14.3 POP CPU with Two ACCUs Format
Page 229 and 230: 14.5 PUSH CPU with Two ACCUs Format
Page 231 and 232: 14.7 ENT Enter ACCU Stack Format De
Page 233 and 234: 14.10 DEC Decrement ACCU 1-L-L Form
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14.12 +AR2 Add ACCU 1 to Address Re
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14.15 NOP 1 Null Instruction Format
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A Overview of All STL Instructions
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German Mnemonics English Mnemonics
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German Mnemonics English Mnemonics
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Overview of All STL Instructions A.
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English Mnemonics German Mnemonics
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English Mnemonics German Mnemonics
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B Programming Examples B.1 Overview
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Absolute and symbolic Programming P
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Absolute and symbolic Programming P
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B.3 Example: Timer Instructions Clo
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Signal states of the Bits of Memory
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Statement List that Activates the I
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B.6 Example: Word Logic Instruction
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C Parameter Transfer ! The paramete
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Index ) ) .........................
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I -I ..............................
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SLD................................
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Statement List (STL) - DCE FEL ČVUT v Praze

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