Index 
 
  S7-200 SMART 
854  System Manual, V2.3, 07/2017, A5E03822230-AF 
data exchange mode, 435 
DP protocol, 423 
GSD device database file, 440 
on PROFIBUS network, 424 
status LEDs, 777 
wiring diagram, 778 
ENCO, 252 
END, 354 
ENI, 322 
Environmental 
industrial environments, 680 
operating conditions, 681 
transport and storage conditions, 681 
Errors 
Axis of Motion, 658 
character error received from Freeport 
communication (SMB3), 804 
compile and run-time errors (PLC program), 792 
data retention, 141 
fatal (PLC), 796 
fatal error effect on run-time execution, 129 
GET_TABLE and PUT_TABLE instructions, 193 
I/O error status, 805 
I/O module ID and error registers (SMB8-
SMB19), 807 
memory locations (PLC non-fatal errors), 795 
Modbus RTU master execution, 487 
Modbus RTU slave execution, 493 
Motion instruction, 659 
non-fatal error effect on run-time execution, 128 
PID auto-tune, 589 
PLC error handling, 127 
PWMx_RUN subroutine, 598 
signal board ID and error registers (SMB28-
SMB29), 808 
timestamp mismatch (PC/PLC program 
difference), 791 
Ethernet 
configuring communication between CPU and HMI 
device, 415 
GET, 191 
IP address, 404 
ISO-on-TCP protocol, 418 
MAC address, 413 
networks, 400 
number of communication connections, 396 
Ports, 419 
TCP protocol, 417 
TSAPs, 420 
types of communication, 28, 395 
UDP protocol, 417 
Ethernet communications 
STEP 7-Micro/WIN SMART settings, 34 
Ethernet network 
configuring the IP address for a CPU, 406 
searching for CPU, 412 
EU STL-Edge Up), 177 
Events, interrupts, 324 
Examples 
Axis of Motion AXISx_CTRL, AXISx_RUN, 
AXISx_SEEK, and AXISx_MAN subroutines 
application, 645 
Axis of Motion simple relative move (cut-to-length 
application), 643 
bit logic input, 182 
bit logic output, 183 
configuring the PROFIBUS DP EM DP01 I/O, 431 
conversion instructions, 238 
count up/down counter instruction, 256 
DISCONNECT instruction, 523 
GET and PUT instructions, 197 
high-speed counter initialization sequences, 277 
high-speed counter programming, 264 
installing the PROFIBUS DP EM DP01 GSD 
file, 429 
ISO_CONNECT instruction, 507 
Modbus RTU slave protocol, programming, 493 
Open user communication (OUC) 
library, 526, 535, 537 
PROFIBUS DP communications to a CPU, 444 
Shift register bit (SHRB) instruction, 361 
subroutine for sampling the value of an analog 
input, 107 
Table Find (TBL_FIND) instruction, 374 
tables, 375 
TCP_CONNECT instruction, 504 
TCP_RECV instruction, 516 
UDP_CONNECT instruction, 509 
UDP_RECV instruction, 522 
UDP_SEND instruction, 519 
Using the AXISx_ABSPOS subroutine to read the 
absolute position from a SINAMICS V90 servo 
drive, 637 
Executing 
program, 72 
single or multiple scans, 576 
EXP (natural exponential),
 302 
Expansion and local I/O addressing, 83 
Expansion cable, 779 
installation, 60 
removal, 60 
Expansion I/O bus - communication errors 
(SMW98), 821