Siemens SIMATIC S7-1500 System Manual page 30

System overview
2.5 Components
C o m p o n e n ts
Interface module for
PROFIBUS DP
I/O module/
fail-safe I/O module
U connector
Front connectors
30
The interface module:
Is used as a DP slave PROFIBUS DP
•
Links the ET 200MP distributed I/O system with the DP master.
•
Exchanges data with the I/O modules via the backplane bus.
•
The I/O modules form the interface between the controller and the
process. The controller detects the current process state via the con-
nected sensors and actuators, and triggers the corresponding reac-
tions. I/O modules are divided into the following module types:
Digital input (DI, F-DI)
•
Digital output (DQ, F-DQ)
•
Digital input/digital output (DI/DQ)
•
Analog input (AI)
•
Analog output (AQ)
•
Analog input/analog output (AI/AQ)
•
Technology module (TM)
•
Communication module (CM)
•
Communication processor (CP)
•
A U connector is included in the scope of delivery for each I/O module.
For fail-safe I/O modules, an additional electronic coding element for
saving the PROFIsafe address is included in the scope of delivery and
can be ordered as spare part Accessories/spare parts (Page 253).
The individual modules are connected to one another with the U con-
nector. The U connector provides the mechanical and electrical con-
nection between the modules.
The U connector is included in the scope of delivery of all modules
(exceptions: CPU, interface module) and can be ordered as Accesso-
ries/spare parts (Page 253).
The purpose of the front connectors is to wire the I/O modules.
The front connectors for technology and analog modules must be
supplemented with a shielding bracket, power supply element, and
shielding clamp. The components are included in the scope of delivery
of the technology modules, analog modules and compact CPUs (for
onboard I/O) and can be ordered as Accessories/spare parts
(Page 253)accessories.
There are front connectors with screw terminals and push-in terminals
for 35 mm modules, and with push-in terminals for 25 mm modules.
The front connectors for 25 mm modules are included in the scope of
delivery of the I/O modules and compact CPUs (for onboard I/O).
Four potential bridges and one cable tie are included in the scope of
delivery of the front connectors for 35 mm modules. The front con-
nectors for 25 mm modules have no potential bridges due to the com-
pact module design.
Fu n cti o n D i a g ra m
Automation system
System Manual, 09/2016, A5E03461182-AD