Statement List (STL) - DCE FEL ČVUT v Praze

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Program Control Instructions Status word The IN parameters can be specified as constants or as absolute or symbolic addresses. The OUT and IN_OUT parameters must be specified as absolute or symbolic addresses. You must ensure that all addresses and constants are compatible with the data types to be transferred. CALL saves the return address (selector and relative address), the selectors of the two current data blocks, as well as the MA bit in the B (block) stack. In addition, CALL deactivates the MCR dependency, and then creates the local data area of the block to be called. BR CC 1 CC 0 OV OS OR STA RLO /FC writes: - - - - 0 0 1 - 0 Example 1: Assigning parameters to the FC6 call CALL FC6 Formal parameter Actual parameter NO OF TOOL := MW100 TIME OUT := MW110 FOUND := Q 0.1 ERROR := Q 100.0 Example 2: Calling an SFC without parameters STL Explanation CALL SFC43 //Call SFC43 to re-trigger watchdog timer (no parameters). Example 3: Calling FB99 with instance data block DB1 CALL FB99,DB1 Formal parameter Actual parameter MAX_RPM := #RPM1_MAX MIN_RPM := #RPM1 MAX_POWER := #POWER1 MAX_TEMP := #TEMP1 Example 4: Calling FB99 with instance data block DB2 CALL FB99,DB2 Formal parameter Akcual parameter MAX_RPM := #RPM2_MAX MIN_RPM := #RPM2 MAX_POWER := #POWER2 MAX_TEMP := #TEMP2 Note Every FB or SFB CALL must have an instance data block. In the example above, the blocks DB1 and DB2 must already exist before the call. Statement List (STL) for S7-300 and S7-400 Programming 10-6 A5E00706960-01
10.6 Call FB Format Description CALL FB n1, DB n1 Program Control Instructions This instruction is intended to call user-defined function blocks (FBs). The CALL instruction calls the function block you entered as address, independent of the RLO or other conditions. If you call a function block with CALL, you must provide it with an instance data block. After processing the called block, processing continues with the program for the calling block. The address for the logic block can be specified absolutely or symbolically. Passing parameters (incremental edit mode) Status word The calling block can exchange parameters with the called block via the variable list. The variable list is extended automatically in your Statement List program when you enter a valid CALL instruction. If you call a function block and the variable declaration table of the called block has IN, OUT, and IN_OUT declarations, these variables are added in the program for the calling block as a list of formal parameters. When calling the function block, you only need to specify the actual parameters that must be changed from the previous call because the actual parameters are saved in the instance data block after the function block is processed. If the actual parameter is a data block, the complete, absolute address must be specified, for example DB1, DBW2. The IN parameters can be specified as constants or as absolute or symbolic addresses. The OUT and IN_OUT parameters must be specified as absolute or symbolic addresses. You must ensure that all addresses and constants are compatible with the data types to be transferred. CALL saves the return address (selector and relative address), the selectors of the two open data blocks, and the MA bit in the B (block) stack. In addition, CALL deactivates the MCR dependency, and then creates the local data area of the block to be called. BR CC 1 CC 0 OV OS OR STA RLO /FC writes: - - - - 0 0 1 - 0 Statement List (STL) for S7-300 and S7-400 Programming A5E00706960-01 10-7
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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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Page 101 and 102: Example: 13 divided by 4 Contents o
Page 103 and 104: Example 3 STL Explanation L MD20 L
Page 105 and 106: Integer Math Instructions 7.9 -D Su
Page 107 and 108: Integer Math Instructions 7.11 /D D
Page 109 and 110: Integer Math Instructions 7.12 MOD
Page 111 and 112: 8 Floating-Point Math Instructions
Page 113 and 114: 8.3 Floating-Point Math Instruction
Page 115 and 116: Floating-Point Math Instructions 8.
Page 131 and 132: 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: 10.5 CALL Block Call Format Descrip
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 and 184: 11.2.2 RLD Rotate Left Double Word
Page 185 and 186: 11.2.3 RRD Rotate Right 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
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Enable input Start input Reset inpu
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Enable Input Start Input Reset Inpu
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13 Word Logic Instructions 13.1 Ove
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Examples Word Logic Instructions Bi
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14 Accumulator Instructions 14.1 Ov
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14.3 POP CPU with Two ACCUs Format
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14.5 PUSH CPU with Two ACCUs Format
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14.7 ENT Enter ACCU Stack Format De
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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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