Siemens SIMATIC S7-400H System Manual page 375

Single mode, 86
Single-bit errors, 91
Single-channel one-sided I/O, 121
Failure, 122
Single-channel switched I/O, 123
Single-channel, switched I/O
Failure, 125
Slot for interface modules, 42
SM 321; DI 16 x AC 120/230 V
Example of an interconnection, 338
SM 321; DI 16 x DC 24 V
Example of an interconnection, 335
SM 321; DI 32 x DC 24 V
Example of an interconnection, 337
SM 321; DI 8 x AC 120/230 V
Example of an interconnection, 339
SM 322; DO 32 x DC 24 V
Example of an interconnection, 350
SM 322; DO 8 x DC 24 V
Example of an interconnection, 349
SM 422; DO 16 x 120/230 V/2 A
Example of an interconnection, 357
Software
Redundancy, 22
Stand-alone operation
Configuring, 323
Definition, 321
Points to note, 322
to a fault-tolerant system, 323
Standby CPU, 80
Startup, 85
Startup modes, 85
Startup monitoring, 67
Startup processing, 85
Status byte, 149
Status displays
All CPUs, 46
CPU 414<#106>4H, 46
CPU 417<#106>4H, 46
Status word, 149
STOP, 46
Subconnection
Active, 160
Switch to CPU with expanded memory
configuration, 104
Switch to CPU with modified configuration, 103
Synchronization, 81
Event-driven, 81
Synchronization module
Function, 249
Replacement, 192
Synchronization modules, 29
S7-400H
System Manual, 09/2007, A5E00267695-03
System modifications during operation
Hardware requirements, 325
Software requirements, 325
Stand-alone operation, 324
System states, 82
T
Technical specifications
Memory card, 309
Technical support, 18
Time monitoring, 106
Time-based reaction, 92, 116
Timeout, 107
Tolerance window, 141
Tools, 31
U
Update, 93, 94, 95, 105, 108, 155
Delay, 116
Minimum input signal duration, 98
Monitoring times, 155
Sequence, 101
Time-based reaction, 108
UPDATE, 85
Updating online
the firmware, 61
Updating the firmware, 61
Usable CPs, 162
User program, 32
User program execution time, 261
W
Warm restart, 52
Operating sequence, 53
Writing data consistently to a DP standard slave, 75
Index
375