Distributed I/O system
14 System Manual, 09/2019, A5E03576849-AJ
What's new in the ET 200SP System Manual, Edition 09/2019 compared to Edition 02/2018
What are the customer benefits?
Where can I find information?
New con-
tents
BaseUnits BU30-MS7,
BU30-MS8, BU30-MS9 and
BU30-MS10 for fail-safe
motor starters
A simple, wire-saving group shutdown for fail-
safe motor starters.
In contrast to the earlier solution (BU30-MS5
and BU30-MS6), the fail-safe signal only has
to be wired to the first motor starter. The fail-
safe signal is internally routed via the Ba-
seUnits.
Section Selecting motor start-
ers with a suitable BaseUnit
(Page 40)
Section Forming potential
groups (Page 49)
Section
Wiring BaseUnits for
motor starters (Page 105)
What's new in the system manual ET 200SP, edition 02/2018 compared to edition 12/2016
What are the customer benefits?
Where can I find information?
New con-
tents
Potential distributor modules Potential distributor modules are a space-
saving replacement for standard potential
distributors or potential distributor terminals.
You can set up potential groups much faster,
in a more compact design and with fewer
components than with standard potential
distributor systems.
One application is, for example, the design of
digital input modules with 16 channels and 3-
wire connection. By using the potential dis-
tributor modules, you are reserving the un-
used signal lines of antivalent sensors.
Another application is the supply of potentials
Starting from section System
overview (Page 16)
Password provider As an alternative to manual password input
you can connect a password provider to
STEP 7. A password provider offers the fol-
lowing advantages:
• Convenient handling of passwords.
STEP 7 reads the password automatically
for the blocks. This saves you time.
• Optimal block protection because the
operators do not know the actual pass-
word.
Section Know-how protection
(Page 160)
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