
Index
S7-400 Automation System Module Data
482 Reference Manual, Edition 09/2009, A5E00850736-06
RL
Meaning, 452
RS 485 repeater, 403
Application, 404
Connection scheme, 407
Design, 405
grounded, 406
grounded operation, 406
Installation rules, 404
Pin assignment, 409
Specifications, 409
Ungrounded, 406
ungrounded operation, 406
Rules
Connection, 345
Run time calibration error
Analog input module, 245
S
S-
Meaning, 452
S +
Meaning, 452
S5 expansion unit
Setting, 368
S5 interface modules, 362
S5 modules
Addressing, 363
Configuration, 370
S7 functions, 379
S7400
Accessories, 443
Spare parts, 443
Safety requirements
Installation, 28
SCL
Meaning, 452
Scope
of the manual, 3
Segment
Cable length, 404
Selecting
Cable length, 366
Interface, 366
Send IM
Operator controls and indicators, 349, 353, 356,
359
Sensor
Supply voltage, 224
Sensor supply missing
Digital input module, 97
Digital module, 102
Sensors
electrically isolated, 221
Non-isolated, 221
Service
On the Internet, 5
Setting
Address area, 369
Measuring range module, 205
S5 expansion unit, 368
Settling time, 214
SFB
Meaning, 452
SFC
Meaning, 452
SFC 51, 103, 246
SFC 55 WR_PARM, 411
SFC 56 WR_DPARM, 411
SFC 57 PARM_MOD, 411
SFC 59, 103, 246
Shielding clamps, 401
Shipping, 32
Short-circuit
Vs Sensor supply, 117
Short-circuit to L+
Digital module, 101
Digital output module, 98
Short-circuit to M
Analog input module, 244
Digital module, 101
Digital output module, 98
Sign
Analog value, 184
Meaning, 453
Signal modules
Diagnostic data, 421
Signal propagation delays
Optimum, 116, 129
Signaling concept, 400
Sinusoidal interference, 30
SM
Meaning, 452
SM 421, DI 16 x AC 120 V
Features, 120
Specifications, 122
Wiring, 121
SM 421, DI 16 x DC 24 V
Diagnostic data, 423
Features, 110
Parameters, 115
Specifications, 112
Wiring and block diagrams, 111
SM 421, DI 16 x UC 120/230 V
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