Siemens Simatic S7-300 - Potential Isolation; Communication between Sensors;Actuators and the PLC; Application of Central and Distributed I;O; Configuration Consisting of the Central Unit (CU) and Expansion Modules (Ems)

Quick Guide
S7-300 Programmable Controller Hardware and Installation
2-2 A5E00105492-01
Table 2-3 Potential isolation
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Which modules can I use if it is required to isolate
the potential of specific sensors/actuators?
Chapter Configuring; Electrical assembly,
Protective measures and Grounding, in the
Installation Manual
Reference Manual Module Specifications
When is it required to isolate the potential of
specific modules?
How do I wire that?
Chapter Configuring; Electrical assembly,
Protective measures and Grounding, in the
Installation Manual
Chapter Wiring, in the Installation Manual
When is it required to isolate the potential of
specific stations?
How do I wire that?
Chapter Configuring; Configuring subnets, in the
Installation Manual
Chapter Wiring, in the Installation Manual
Table 2-4 Communication between sensors/actuators and the PLC
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Which module is suitable for my sensor/actuator? for CPU: Reference Manual CPU Data
for signal modules: Reference Manual Module Data
How many sensors/actuators can I connect to the
module?
for CPU: Reference Manual CPU Data
for signal modules: Reference Manual Module Data
How do I wire the sensors/actuators to the PLC
using front connectors?
Chapter Wiring; Wiring front connectors, in the
Installation Manual
When do I require expansion modules (EG), and
how are they connected?
Chapter Configuring, optional expansions and
networking, in the Installation Manual
How do I mount modules on module racks/profile
rails?
Chapter Mounting; Mounting modules on profile
rails, in the Installation Manual
Table 2-5 Application of central and distributed I/O
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Which range of modules do I want to use? for central I/O / expansion modules (EGs):
Reference Manual Module data
for distributed I/O / PROFIBUS-DP: Manual of the
respective peripheral device, e.g. Manual ET 200B
Table 2-6 Configuration consisting of the Central Unit (CU) and Expansion Modules (EMs)
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Which mounting racks / profile rails are suited best
for my application?
Chapter Configuring, in the Installation Manual
Which Interface modules (IM) do I need for
connecting EMs to the CPU?
Chapter Configuring, Arranging modules on
multiple module racks, in the Installation Manual
How do I configure the power supply (PS)
performance?
Chapter Configuring, in the Installation Manual