Siemens SIMATIC S7-200 System Manual page 533

Debugging
editing in RUN mode, 244
features, 244
forcing values, 248
multiple scans, 248
DECEL_TIME (Deceleration Time), EM 253 Position
Module, 256
Decode instruction, 112
example, 112
Decrement instruction, 144
example, 144
Designing
Micro PLC system, 52
safety circuits, 52
Det Norske Veritas (DNV) Maritime Agency, 393
Detach interrupt instruction, 153
Deviation, 385
Device database file (GSD), EM 277
PROFIBUS--DP, 446–447
Diagnostic LED, 47
Diagnostics, CPU self--test, 27
Diagnostics information, EM 253 Position Module,
291
Differential term, PID algorithm, 148
Digital expansion module, addressing, 33
Digital input circuit, 46
Digital inputs
filtering, 44
pulse catch, 44
reading, 41
writing to, 27
Digital outputs, configuring states, 43
Dimensions, CPU, 2
DIN rail mounting, 18
Diode suppression, 22
DIP switch settings, PPI Multi--Master cable, 9
DIP switch settings, PPI Multi--Master cable, 227
DIP switches
RS--232/PPI Multi--Master Cable, 469
RTD, 431–432
thermocouple, 427
Direction, changing in HSC, 130
Disable interrupt instruction, 153
Disabling, high--speed counters, 131
Discrete modules, 4
Display panels, Text Display, 6
Displaying
program elements, 55
program status, 246
Divergence control
example, 175
sequence control relay instructions, 175
Divide instruction, 140
Divide integer with remainder instruction (DIV), 142
example, 142
Double integer to ASCII instruction, 104
Double integer to integer instruction, 100
Double integer to real instruction, 100
Down counter instruction, 116
Downloading
data log configurations, 37
program, 14, 37
recipes, 37
Drawings, creating configuration, 53
Drive communication, calculating time requirement,
332
Drives. See MicroMaster drives
Dumb terminal, configuring the RS--232/PPI
Multi--Master cable, 239–483
E
Editing, in RUN mode, 244
Editors
Function Block Diagram (FBD), 56
Ladder Logic (LAD), 56
Statement List (STL), 55
EEPROM
error codes, 478
saving bit memory (M), 39
saving variable memory (V), 39, 487
Electric service life, 393
Electromagnetic
compatibility, S7--200, 394
emission standards, 394
immunity standards, 394
EM 231 analog input module
accuracy and repeatablity, 422
calibration, 416
input block diagram, 419
input data word format, 419
installation, 422
specifications, 423
EM 231 RTD module
configuring, 431
connector terminals, 425
CPU compatibility, 425
selecting DIP switches, 431–432
specifications, 424
status indicators, 434
temperature ranges and accuracy, 435–436
EM 231 thermocouple module
basics, 426
configuring, 426
connector terminals, 425
CPU compatibility, 425
selecting DIP switches, 427
specifications, 424
status indicators, 428
temperature ranges and accuracy, 429–430
EM 232 analog output module
output block diagram, 421
output data word format, 420
EM 235 analog input/output module
accuracy and repeatablity, 422
calibration, 416
configuration, 418
input block diagram, 420
input data word format, 419
installation, 422
output block diagram, 421
output data word format, 420
specifications, 423
EM 241 Modem Module
block diagram, 450
Index
519