Siemens S7-400 Service Manual Page 195
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Overview of All LAD Instructions
Ladder Logic (LAD) for S7-300 and S7-400 Programming
A5E00706949-01
A-3
English
Mnemonics
German
Mnemonics
Program Elements Catalog Description
S_CD Z_RUECK Counters Down Counter
S_CU Z_VORW Counters Up Counter
S_CUD ZAEHLER Counters Up-Down Counter
---( SD ) ---( SE ) Timers On-Delay Timer Coil
---( SE ) ---( SV ) Timers Extended Pulse Timer Coil
---( SF ) ---( SA ) Timers Off-Delay Timer Coil
SHL_DW SHL_DW Shift/Rotate Shift Left Double Word
SHL_W SHL_W Shift/Rotate Shift Left Word
SHR_DI SHR_DI Shift/Rotate Shift Right Double Integer
SHR_DW SHR_DW Shift/Rotate Shift Right Double Word
SHR_I SHR_I Shift/Rotate Shift Right Integer
SHR_W SHR_W Shift/Rotate Shift Right Word
SIN SIN Floating point Instruction Establish the Sine Value
S_ODT S_EVERZ Timers On-Delay S5 Timer
S_ODTS S_SEVERZ Timers Retentive On-Delay S5 Timer
S_OFFDT S_AVERZ Timers Off-Delay S5 Timer
---( SP ) ---( SI ) Timers Pulse Timer Coil
S_PEXT S_VIMP Timers Extended Pulse S5 Timer
S_PULSE S_IMPULS Timers Pulse S5 Timer
SQR SQR Floating point Instruction Establish the Square
SQRT SQRT Floating point Instruction Establish the Square Root
SR SR Bit logic Instruction Set-Reset Flip Flop
---( SS ) ---( SS ) Timers Retentive On-Delay Timer Coil
SUB_DI SUB_DI Integer Math Instruction Subtract Double Integer
SUB_I SUB_I Integer Math Instruction Subtract Integer
SUB_R SUB_R Floating point Instruction Subtract Real
TAN TAN Floating point Instruction Establish the Tangent Value
TRUNC TRUNC Convert Truncate Double Integer Part
UO ---| |--- UO ---| |--- Status bits Exception Bit Unordered
WAND_DW WAND_DW Word logic Instruction AND Double Word
WAND_W WAND_W Word logic Instruction AND Word
WOR_DW WOR_DW Word logic Instruction OR Double Word
WOR_W WOR_W Word logic Instruction OR Word
WXOR_DW WXOR_DW Word logic Instruction Exclusive OR Double Word
WXOR_W WXOR_W Word logic Instruction Exclusive OR Word
- 6ES7810-4CA08-8BW1 1
- Safety Guidelines 2
- Qualified Personnel 2
- Prescribed Usage 2
- Trademarks 2
- Disclaimer of Liability 2
- Preface 3
- Requirements 4
- Online Help 5
- Further Support 5
- Training Centers 5
- Technical Support 6
- Contents 7
- A5E00706949-01 10
- 1 Bit Logic Instructions 11
- 1.4 XOR Bit Exclusive OR 14
- 1.6 ---( ) Output Coil 16
- 1.8 ---( R ) Reset Coil 20
- 1.9 ---( S ) Set Coil 22
- Symbol 32
- 1.17 Immediate Read 33
- 1.18 Immediate Write 34
- Bit Logic Instructions 36
- 2 Comparison Instructions 37
- Symbols 38
- 2.4 CMP ? R Compare Real 42
- Comparison Instructions 44
- 3 Conversion Instructions 45
- 3.2 BCD_I BCD to Integer 46
- 3.3 I_BCD Integer to BCD 47
- 3.15 CEIL Ceiling 59
- 3.16 FLOOR Floor 60
- 4 Counter Instructions 61
- Counter Instructions 62
- 4.2 S_CUD Up-Down Counter 63
- 4.3 S_CU Up Counter 65
- 4.4 S_CD Down Counter 67
- <C no.> <Z no.> 70
- 5 Data Block Instructions 75
- Data Block Instructions 76
- 6 Logic Control Instructions 77
- 6.5 LABEL Label 81
- Logic Control Instructions 82
- 7 Integer Math Instructions 83
- Math Instructions 84
- 7.3 ADD_I Add Integer 85
- 7.4 SUB_I Subtract Integer 86
- 7.5 MUL_I Multiply Integer 87
- 7.6 DIV_I Divide Integer 88
- Integer Math Instructions 94
- Point Math Instructions 96
- 8.3 Basic Instructions 97
- Description 100
- Status word 100
- Example 100
- 8.4 Extended Instructions 103
- 9 Move Instructions 113
- Symbol 124
- SRCBLK RET_VAL 125
- 10.7 Call Multiple Instance 126
- 10.14 ---(RET) Return 134
- 11.1 Shift Instructions 135
- 11.2 Rotate Instructions 145
- Status Bit Instructions 152
- Examples 155
- Area in Memory 162
- Time Value 162
- Time Base 163
- Choosing the right Timer 164
- Timing Diagram 166
- 14.3 WOR_W (Word) OR Word 187
- Word Logic Instructions 192
- Mnemonics (International) 193
- Mnemonics (SIMATIC) 196
- B Programming Examples 201
- Clock Pulse Generator 206
- Signal Check 207
- Programming Examples 209
- Solving a Math Problem 213
- Ladder Logic Program 213
- Heating an Oven 214
- Programming Examples 216
- C Working with Ladder Logic 217
- end: AN error 218
- 5 NOP 0 222
- C.2 Parameter Transfer 223
- Working with Ladder Logic 224
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