Siemens Simatic S7 Series

Index
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
717
LD (STL-Load), 149
LDB< (STL-Load compare byte less than), 192
LDB<= (STL-Load compare byte less than or
equal), 192
LDB<> (STL-Load compare byte not equal), 192
LDB= (STL-Load compare byte equal), 192
LDB> (STL-Load compare byte greater than), 192
LDB>= (STL-Load compare byte greater than or
equal), 192
LDD< (STL-Load compare double word less than), 192
LDD<= (STL-Load compare double word less than or
equal), 192
LDD<> (STL-Load compare double word not
equal), 192
LDD= (STL-Load compare double word equal), 192
LDD> (STL-Load compare double word greater
than), 192
LDD>= (STL-Load compare double word greater than
or equal), 192
LDI (STL stack-Load immediate), 153
LDI (STL-Load NOT immediate), 151
LDN (STL stack-Load NOT), 153
LDN (STL-Load NOT), 149
LDNI (STL-Load NOT immediate), 151
LDR< (STL-Load compare real less than), 192
LDR<= (STL-Load compare real less than or
equal), 192
LDR<> (STL-Load compare real not equal), 192
LDR= (STL-Load compare real equal), 192
LDR> (STL-Load compare real greater than), 192
LDR>= (STL-Load compare real greater than or
equal), 192
LDS (STL stack-Load), 154
LDS<> (STL-Load string compare not equal), 196
LDS= (STL-Load string compare equal), 196
LDW< (STL-Load compare word less than), 192
LDW<= (STL-Load compare word less than or
equal), 192
LDW<> (STL-Load compare word not equal), 192
LDW= (STL-Load compare word equal), 192
LDW> (STL-Load compare word greater than), 192
LDW>= (STL-Load compare word greater than or
equal), 192
Library
creating, 411
USS protocol library, 413
LIFO, 328
LN (natural logarithm), 264
Local and expansion I/O addressing, 69
Local variables, 104
Local/Partner connection, 358
Logic stack
STL inputs, 153
STL stack operations, 154
Logic, control, 55
Logical operation instructions
AND, OR, XOR (byte, word, and dword), 294
invert, 293
Loop control (PID)
adjusting bias, 279
converting inputs, 278
converting outputs, 279
error conditions, 281
forward/reverse, 279
loop definition table, 468
modes, 280
Loop table, 281
Lost password, 146
LPP (STL stack-Logic Pop), 154
LPS (STL stack-Logic Push), 154
LRD (STL stack-Logic Read), 154
LSCR (STL-Load SCR), 303
M
MAC address, 370
Main program, 87
Math instructions
add, subtract, multiply and divide, 259
divide integer with remainder, 262
increment and decrement, 266
multiply integers to double integer and divide
integer with remainder, 262
numeric functions, 264
MBS_MSG (send message from Modbus master), 438
MBUS_CTRL (initialize Modbus master
communication), 437
MBUS_INIT (initialize slave communication), 445
MBUS_SLAVE (slave response to master
message), 446
Memory, 660
addresses for non-fatal error indicators, 660
clearing PLC, 145
retentive range configuration, 122
Memory card
program transfer card, 82
reset to factory defaults, 147
type, 78
using, 79
Modbus general
addressing, 434
advanced user information, 450