assigning an IP address to an online CPU, 813
block calls, 83
calling code blocks within the user program, 187
changing the settings, 45
communication load, 110
comparing and synchronizing, 1323
configuring the CPU, 170
configuring the modules, 177
copying blocks from an online CPU, 221
cycle time, 109, 110
cycle time, 109, 110
data block (DB), 83
device configuration, 153
download, 216
drag and drop between editors, 46
Ethernet port, 814
expandable inputs or outputs, 44
favorites, 41
force, 1332
force operation, 1333
function (FC), 190
function block (FB), 83, 190
HSC configuration, 572
initial value of an FB, 190
inserting instructions, 41
instance data block (DB), 190
linear and structured programs, 185
memory card, 138
monitoring, 1326, 1327
network connection, 806
operating modes, 87
operation, 1329
operator panel, 47
password protection, 213
Portal view and Project view, 39
priority class (OB), 92
PROFIBUS, 972
PROFINET port, 814
program card, 138
RTM (run time meters), 344
RUN/STOP buttons, 47
startup processing, 90
time synchronization property (PROFINET), 823
types of code blocks, 83
unplugged modules, 50
valid FC, FB, and DB numbers, 83
version compatibility, 51
STEP 7 programming
PtP example program, 1143
user-defined Web pages, 1059
STEP 7 web pages, 4
Stop bits, 1094
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
STOP mode, 87, 1321
enable outputs in STOP mode, 1331
force operation, 1333
operator panel, 47
toolbar buttons, 47
STP (exit program), 310
Strg_TO_Chars (convert character string to array of
CHAR), 357
STRG_VAL (convert character string to numerical
value), 347
String
S_MOVE (move character string), 346
string data overview, 346
String data type, 130
string operations overview, 361
Structured programming, block structure, 185
SUB (subtract), 257
Subnet mask, 815
Support, 3
Suppressor circuits for inductive loads, 80
Surge immunity, 1364
SWAP (swap bytes), 276
SWITCH (jump distributor), 304
Switching languages, user-defined Web pages, 1074
Synchonizing data block start values, 219
Synchronization
time synchronization property (PROFINET), 823
System clock
RD_SYS_T (read time-of-day), 339
WR_LOC_T (set local time), 339
WR_SYS_T (set time-of-day), 339
System memory byte, 113
System requirements, 38
T
T_ADD (add times), 336
T_COMBINE (combine times), 337
T_CONFIG (configure interface), 901
T_CONV (convert times and extract), 335
T_DIAG, 880
T_DIFF (time difference), 337
T_RESET, 878
T_SUB (subtract times), 336
Tablet, accessing Web server, 1009
Tag
force operation, 1333
monitoring status or value, 1326
overlay, 135
slice, 134
Tag status standard Web page, 1031
TAN (form tangent value), 263
Index
1609