S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
771
Index
A
ABS (absolute value), 190
AC
grounding, 58
inductive loads, 59
isolation guidelines, 57
Access protection
Accessing
data logs from PC, 486
user-defined Web pages, 510
ACOS (arc cosine or inverse cosine), 192
Active/passive communication
configuring the partners, 118, 465
connection IDs, 396
parameters, 120
Active/Passive connection, 394
Ad hoc mode
ISO on TCP, 400
TCP, 400
ADD (add), 187
Add new device
detect existing hardware, 111
unspecific CPU, 111
Adding inputs or outputs to LAD or FBD
instructions, 31
Addressing
Boolean or bit values, 81
individual inputs (I) or outputs (Q), 81
memory areas, 81
process image, 81
Air flow, 39
Alarm
peripheral access, 440
Alarm interrupt, 281
Aliases in user-defined Web pages, 500
Analog I/O
configuration, 115
conversion to engineering units, 30, 85, 208
input representation (voltage), 669, 678, 687, 708,
output representation (current), 708, 733
output representation (voltage), 709, 734
status indicators, 634
step response times (CPU), 669, 677, 686
step response times (SB), 732
step response times (SM), 707
Analog signal (SM)
SM 1232 AQ 4 x 14bit, 702
Analog signal board (SB)
SB 1231 AI 1 x 12 bit, 728
SB 1231 AI 1 x 16 bit RTD, 738
SB 1231 AI 1 x 16 bit Thermocouple, 734
SB 1232 AQ 1x12 bit, 731
Analog signal module (SM)
SM 1231 AI 4 x RTD x 16 bit, 714
SM 1231 AI 8 x 16 bit TC, 709
SM 1231 AI 8 x RTD x 16 bit, 714
SM 1232 AQ 2 x 14bit, 702
SM 1234 AI 4 x 13 bit / AQ 2 x 14 bit, 704
Approvals
ATEX approval, 658
CE approval, 657
C-Tick approval, 659
cULus approval, 658
FM approval, 658
Arrays
accessing members with a variable, 198
AS-i
add AS-i slave, 453
add CM 1243-2 AS-i Master module, 453
AS-i address, 454
AS-i address properties, 454
Distributed I/O instructions, 458
network connection, 453
RDREC, 260
system assignment, 457
system assignment of slave addresses, 457
transferring analog values, 455
transferring digital values, 455
WRREC, 260
AS-I
slave configuration with STEP 7, 455
slave configuration without STEP 7, 457
AS-i address, 454
configuring, 454
AS-i Master Module, 452