Siemens SIMATIC S7-400H System Manual page 501

G
Gateway, 218
H
Hardware
Components, 34
Configuration, 42, 43, 260
Hardware interrupt
in the S7-400H system, 140
Hardware interrupt processing, 380
HOLD, 135
Hotline, 22
I
I/O, 36, 169
Design versions, 36
One-sided, 171
Redundant, 177
Switched, 173
I/O redundancy errors, 39
IE communication, 228
Data blocks, 228
IFM1F, 57
IFM2F, 57
Indirect current measurement, 200
Installation types
I/O, 169
interface
PROFINET, 50
INTF, 56
IP address
Assigning, 71
L
LED
BUSF, 91
LED displays, 48
LED MAINT, 59
LINK, 58
LINK1 OK, 59
LINK2 OK, 59
Link-up, 141, 142, 143, 147, 154, 158, 212
Flow chart, 144
Monitoring times, 212
Sequence, 147
Time response, 158
LINK-UP, 133
S7-400H
System Manual, 03/2012, A5E00267695-11
Link-up and update
Disabling, 154
Effects, 141
Sequence, 143
Starting, 143
Link-up with master/reserve changeover, 147
Link-up, update, 133
Load memory, 152
Loss of redundancy, 123
M
Manual
Purpose, 19
Scope of validity, 20
Master CPU, 121
Master/reserve assignment, 122
Maximum communication delay
Calculation, 165
Definition, 155
Maximum cycle time extension
Calculation, 165
Definition, 155
Maximum inhibit time for priority classes > 15
Calculation, 161
Definition, 156
MDT, 435
Media redundancy protocol (MRP), 104
Memory areas
Basis for the calculation, 119
Memory areas, 117
Memory card, 65
Function, 65
Serial number, 66
Memory card slot, 49
Memory expansion, 329
Memory reset, 131
Operating sequence, 62
Sequence, 62
Memory size, 119
Message functions, 151
Minimum I/O retention time
Calculation, 160
Definition, 156
Mode switch, 48, 60
Monitoring functions, 52
Monitoring times, 155
Accuracy, 159
Configuration, 160
MPI, 70
MPI/DP interface, 49
MRP (media redundancy protocol ), 104
Index
501