Siemens Automation System S7-400 - Manual (Page 227)

Index
Index-3
Automation System S7-400 Hardware and Installation
A5E00850741-01
PROFIBUS-DP network
components, 5-8
configuration example, 5-12, 5-13
configuration rules, 5-7
segment, 5-15
Programming device, connecting, 6-5
Protection against overvoltage, A-20
Protective measures, 4-5
R
Rack, 1-2
clearances, 2-10
mounting dimensions, 2-10
segmented, 2-8, 2-9
subdivided, 2-9
with I/O bus and C bus, 2-7
Racks
grounding, 2-10
mounting, 2-10
of the S7-400 system, 2-6
Rating plate, M7-400, 1-3
Reboot, operating sequence, 6-10
Reference potential
grounded, 4-7
ungrounded, 4-8
Regulations, for operating the S7-400, A-2
Replacing interface submodules, 7-19
Restart, 6-10
operating sequence, 6-10
RS 485 repeater, 5-7, 5-21
assembly, 5-21
connecting the PROFIBUS-DP bus cable,
5-21
terminating resistor, 5-9
wiring the power supply unit, 5-21
Rules
for configuring a network, 5-7
for ensuring electromagnetic compatibility,
A-7
general, A-2
wiring, 4-17
Running cables, outside buildings, A-19
S
Segment, 5-3
MPI network, 5-15
PROFIBUS-DP network, 5-15
Signal module, 1-2
Space requirements
of cabinets, 2-28
of the racks, 2-29
with fan subassembly, 2-11
Spur lines, 5-7
lengths, 5-16
Start address
of analog modules, 3-5
of digital modules, 3-4
Startup, procedure, 6-2
Station. See Teilnehmer
Supply, grounded, 4-5
Surge protection, components, A-26
Surge voltages, inductive, A-30
Surges, A-21
Switching on, checks prior to switching on for
the first time, 6-3
Switching on an S7-400, for the first time, 6-6
T
Terminating resistor, 5-7
example, 5-10
on the bus connector, 5-9
on the RS 485 repeater, 5-9
setting at the bus connector, 5-20
Transmission rate, 5-3
Types of cabinets, 2-27
W
Warm start, 6-10