
Index
S7-400 Automation System Module Data
Reference Manual, Edition 09/2009, A5E00850736-06
485
Terminator, 345
IM 463-2, 374
Test voltages, 36
Testing
Mechanical ambient conditions, 35
Reference channel error, 310
Underflow, 310
The 120/230 V DC fan subassembly
Installation, 398
The 120/230 VAC fan subassembly
Fuse, 397
Operator controls and indicators, 397
Specifications, 398
Thermal voltage, 231
Thermocouple
Connecting to an analog input module, 231
Design, 231
Operating principle, 231
Thermocouples to resistance thermometers
Connecting, 236
Training center, 4
U
UC
Meaning, 452
UCM
Meaning, 453
UH
Meaning, 453
Uiso
Meaning, 453
UL
Approval, 23
Underflow
Analog input module, 245
Testing, 310
Ungrounded operation
RS 485 repeater, 406
UR1
Design, 39
Specifications, 40
UR2
Specifications, 40
UR2-H
Design, 42
Specifications, 42
User program
Parameter assignment, 411
USR
Meaning, 453
V
Vibrations, 34
Reducing, 34
Voltage sensors
Connecting, 223
Vs
Meaning, 453
Vs Sensor supply
Short-circuit, 117
W
Wire break
Analog input module, 244
Digital module, 102
Wire break monitoring
Analog input module, 217
Digital input module, 97
Digital output module, 98
Ensuring, 116, 128
SM 431, AI 16 x 16 Bit, 309
Wiring
24 VDC fan subassembly, 400
SM 421, DI 16 x AC 120 V, 121
Wiring and block diagrams
SM 421, DI 16 x DC 24 V, 111
SM 421, DI 16 x UC 120/230 V, 131, 135
SM 421, DI 16 x UC 24/60 V, 125
SM 421, DI 32 x DC 24 V, 107
SM 421, DI 32 x UC 120 V, 139
SM 422, DO 16 x AC 120/230 V/2 A, 166
SM 422, DO 16 x DC 24 V/2 A, 143
SM 422, DO 32 x DC 24 V/0.5 A, 152, 156
SM 422, DO 8 x AC 120/230 V/5 A, 162
Wiring diagram
SM 422, DO 16 x AC 20-120 V/2 A, 170
SM 422, DO 16 x DC 20-125 V/1.5 A, 147
SM 431, AI 8 x 13 Bit, 250
SM 431, AI 8 x 14 Bit, 275
SM 431, AI 8 x 16 Bit, 323
SM 431, AI 8 x RTD x 16 bit, 313
Wiring diagram
SM 431, AI 8 x 14 Bit, 259
Wiring diagram
SM 431, AI 16 x 13 Bit, 286
Wiring diagram
SM 431, 295
Wiring diagram
SM 431, AI 8 x 16 Bit, 336
WR_DPARM
SFC 56, 411
WR_PARM
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