Siemens SIMATIC S7 System Manual page 773

block calls, 61
calling code blocks within the user program, 138
capturing the status of a code block, 34
copy protection, 156
counters (quantity and memory requirements), 19,
665, 673, 682
DB (data block), 61, 141
FB (function block), 61, 140
FC (function), 61, 140
initial value of an FB, 140
instance data block (DB), 140
interrupts, 19, 665, 673, 682
know-how protection, 154
linear and structured programs, 136
monitoring, 19, 665, 673, 682
nesting depth, 19, 665, 673, 682
number of code blocks, 19, 665, 673, 682
number of OBs, 19, 665, 673, 682
organization block (OB), 138
organization blocks (OBs), 19, 665, 673, 682
restoring the status of a code block, 34
size of the user program, 19, 665, 673, 682
timers (quantity and memory requirements), 19,
665, 673, 682
types of code blocks, 61
valid FC, FB, and DB numbers, 61
Code blocks, 138
Cold junction compensation
Thermocouple, 712, 736
Columns and headers in task cards, 32
Communication
active/passive, 118, 120, 465
AS-i address, 454
communication load, 74
configuration, 118, 120, 465
connection IDs, 396
cycle time, 74
flow control, 550
hardware connection, 429
IP address, 127
MAC address, 127
network, 429
network connection, 117
number of connections (PROFINET), 394
parameters, 120, 483
polling architecture, 561
PROFIBUS address, 449
PROFINET and PROFIBUS, 393
send and receive parameters, 552
statistics, 483
TCON_Param, 120
time synchronization property (PROFINET), 132
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
Communication board (CB)
add modules, 112
CB 1241 RS485, 753
comparison chart, 20
configuration of parameters, 115
device configuration, 109
installation, 46
LED indicators, 529, 633
overview, 22
programming, 560
removal, 46
RS485, 529
Communication interfaces
add modules, 112
CB 1241 RS485, 753
CM 1241 RS232, 756
CM 1241 RS485, 754
comparison chart of the modules, 20
configuration, 549
device configuration, 109
LED indicators, 633
programming, 560
RS232 and RS485, 529
Communication module
CM 1241 RS422/RS485 specifications, 756
Communication module (CM)
add CM 1243-2 AS-i Master module, 453
add CM 1243-5 (DP master) module, 448
add modules, 112
CM 1241 RS232 specifications, 756
CM 1241 RS485, 754
comparison chart, 20
configuration for PtP example program, 563
configuration of parameters, 115
data reception, 544
device configuration, 109
installation, 48
LED indicators, 529, 633
overview, 22
power requirements, 761
programming, 560
removal, 48
RS232 and RS485, 529
Communication processor (CP)
add modules, 112
comparison chart, 20
configuration of parameters, 115
device configuration, 109
overview, 22
Communication standard Web page, 483
Compare, 183
Comparing and synchronizing online/offline CPUs, 641
Index
773