Siemens SIMATIC ET 200SP System Manual

Application planning
4.3 Selecting potential distributor modules
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ
45
Please note:
● The potential groups opened with a light-colored PotDis-BU must not contain any I/O
modules. You can integrate any dark-colored PotDis-BUs into I/O module potential
groups provided they are based on an SELV/PELV supply.
● If you do not need the additional terminals of the PotDis-TB in a potential distributor
module, replace the PotDis-TB with a BU cover. You may only connect one potential
group within a combination of PotDis-BU and PotDis-TB.
● Only SELV/PELV potentials are permitted on PotDis-BUs. Separate different SELV/PELV
potential groups using light-colored PotDis-BUs.
● With potential distributor modules, you may only connect to the PotDis-TB versions BR-W
and n.c.-G potential, which exceed the voltage level of SELV/PELV.
● PotDis terminals are not directly configurable as PotDis via GSD/GSDML. When
configuring with GSD, always use an dummy module; with GSDML, integrate a free
space.
Additional information
Additional information on the potential distributor modules (PotDis-BaseUnits and PotDis-
TerminalBlocks) is available in the BaseUnits
(http://support.automation.siemens.com/WW/view/en/59753521
) manual.

Siemens SIMATIC ET 200SP Specifications

General

System Type	Distributed I/O System
Mounting	DIN Rail
Communication Protocol	PROFINET, PROFIBUS
IP Rating	IP20
Category	I/O Systems
Supply Voltage	24 V DC
Modularity	Yes
Hot Swapping	Yes
Storage Temperature	-40°C to +70°C
Digital Inputs	Yes
Digital Outputs	Yes
Analog Inputs	Yes
Analog Outputs	Yes
Communication Interface	PROFINET, PROFIBUS
Number of Modules	Up to 64
Relative Humidity	5 to 95% (non-condensing)
Operating Temperature	-25°C to +60°C