Siemens S7-400 installation manual Index-3

Index

PROFIBUS-DP network components, 5-8configuration example, 5-12,5-13configuration rules, 5-7segment, 5-15

Programming device, connecting, 6-5Protection against overvoltage, A-20Protective measures, 4-5

R

Rack, 1-2clearances, 2-10mounting dimensions, 2-10segmented, 2-8,2-9subdivided, 2-9

with I/O bus and C bus, 2-7Racks

grounding, 2-10mounting, 2-10

of the S7-400 system, 2-6Rating plate, M7-400, 1-3Reboot, operating sequence, 6-10Reference potential

grounded, 4-7ungrounded, 4-8

Regulations, for operating the S7-400, A-2Replacing interface submodules, 7-19Restart, 6-10

operating sequence, 6-10RS 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, 5-21Rules

for configuring a network, 5-7

for ensuring electromagnetic compatibility, A-7

general, A-2wiring, 4-17

Running cables, outside buildings, A-19

S

Segment, 5-3

MPI network, 5-15PROFIBUS-DP network, 5-15

Signal module, 1-2Space requirements

of cabinets, 2-28of the racks, 2-29

with fan subassembly, 2-11Spur lines, 5-7

lengths, 5-16Start address

of analog modules, 3-5of digital modules, 3-4

Startup, procedure, 6-2Station. See Teilnehmer Supply, grounded, 4-5

Surge protection, components, A-26Surge voltages, inductive, A-30Surges, 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, 5-7example, 5-10

on the bus connector, 5-9on the RS 485 repeater, 5-9setting at the bus connector, 5-20

Transmission rate, 5-3Types of cabinets, 2-27

W

Warm start, 6-10

Automation System S7-400	Hardware and Installation	Index-3
A5E00850741-01