Application Planning; Selecting A Suitable Baseunit - Siemens SIMATIC ET 200SP System Manual

Application planning

3.1

Selecting a suitable BaseUnit

Overview
The BaseUnits (BU) are classified according to different types. Each BaseUnit type is
characterized by properties that match specific I/O modules (see the following tables and
images).
The BU type can be recognized by the last two digits of the article number of an I/O module.
Note
A complete overview of the possible combinations between BaseUnits and I/O modules is
available in the Product information on documentation of the ET 200SP distributed I/O
system (http://support.automation.siemens.com/WW/view/en/73021864).
Table 3- 1
Selecting a BaseUnit
BU type A0
See Digital, fail-safe,
communication, tech-
nology or analog
modules without tem-
perature measure-
ment (Page 29)
BU type A1
See Analog modules
with temperature
measurement
(Page 30)
26
Selection of a suitable BaseUnit
I/O module
(example)
Digital, fail-safe,
technology or com-
munication module
6ES7...A0
•
24 V DC
•
15 mm wide
•
Analog module with-
out temperature
measurement**
6ES7...A1
•
24 V DC
•
15 mm wide
•
Analog module with
temperature meas-
urement*
6ES7...A1
•
24 V DC
•
15 mm wide
•
Examples of suitable I/O modules for BU types
I/O module (example)
DI 16×24VDC ST
(6ES7131-6BF00-0BA0)
AI 4xU/I 2-wire ST
(6ES7134-6HD00-0BA1)
AI 4×RTD/TC 2-/3-/4-
wire HF
(6ES7134-6JD00-0CA1)
System Manual, 12/2015, A5E03576849-AF
3
BaseUnit
BU15-P16+A0+2D
(6ES7193-6BP00-0DA0)
BU15-
P16+A0+2D/T(6ES7193-
6BP00-0DA1)
Distributed I/O system