Equipment Manual · Publication A5E03727049 · Siemens AG

SIMATIC ET 200SP BaseUnits Equipment Manual

This Equipment Manual covers the BaseUnits (article numbers 6ES7193-6BP... and 3RK1908-0AP00...) for the SIMATIC ET 200SP distributed I/O system. It provides product overviews, wiring diagrams, pin assignments, and technical specifications for BaseUnits used with interface modules, I/O modules, and motor starters. The manual also documents BaseCarrier types, potential distributor modules, and the IO adapter. Dimension drawings for all module families are included in appendices.

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06/2025 Edition

A5E03727049-AN Publication Number

-30 BU Operating Temp (horizontal)

10 A Max Supply Current per Potential Group

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Specifications

BU type M0 (6ES7193-6BR00-0HM0)

Rated supply voltage	24 V DC
Number of slots	2
Potential separation (backplane bus / supply)	Yes
Isolation tested with	707 V DC (type test)
Ambient temp, horizontal	-30 °C to +60 °C
Ambient temp, vertical	-30 °C to +50 °C
Max installation altitude	2 000 m (higher on request)
Width / Height / Depth	100 mm / 141 mm / 29 mm
Weight	approx. 142 g

BU type A0, light-colored with AUX terminals (6ES7193-6BP20-2DA0)

Rated supply voltage	24 V DC
P1 and P2 bus current, max.	10 A
AUX bus current, max.	10 A
Process terminal current, max.	2 A
Number of process terminals to I/O module	16
Number of AUX terminals	10
Terminal type	Push-in terminal
Conductor cross-section	0.14 mm² (AWG 26) to 2.5 mm² (AWG 14)
Isolation tested with	707 V DC (type test)
New potential group	Yes
Max installation altitude	5 000 m (restrictions above 2 000 m)
Width / Height / Depth	15 mm / 141 mm / 35 mm
Weight	approx. 50 g

BU type A0, light-colored without AUX terminals (6ES7193-6BP00-2DA0)

Rated supply voltage	24 V DC
P1 and P2 bus current, max.	10 A
Process terminal current, max.	2 A
Number of process terminals to I/O module	16
Terminal type	Push-in terminal
Conductor cross-section	0.14 mm² (AWG 26) to 2.5 mm² (AWG 14)
Isolation tested with	707 V DC (type test)
New potential group	Yes
Width / Height / Depth	15 mm / 117 mm / 35 mm
Weight	approx. 40 g

BU type A1, light-colored with add-on terminals (6ES7193-6BP40-0DA1)

Rated supply voltage	24 V DC
P1 and P2 bus current, max.	10 A
Process terminal current, max.	2 A
Number of process terminals to I/O module	16
Number of add-on terminals	2x5
Temperature sensor	Yes (internal reference junction for thermocouple compensation)
Terminal type	Push-in terminal
Conductor cross-section	0.14 mm² (AWG 26) to 2.5 mm² (AWG 14)
Isolation tested with	707 V DC (type test)
New potential group	Yes
Width / Height / Depth	15 mm / 141 mm / 35 mm
Weight	approx. 50 g

BC type A0, light-colored (6ES7193-6MT15-2DA0)

New potential group	Yes
Plug-in modules, analog I/O	Yes
Plug-in modules, digital I/O	Yes
PCB installation	Yes
Ambient temp, horizontal	-30 °C to +60 °C
Max installation altitude	5 000 m (restrictions above 2 000 m)
Width / Height / Depth	15 mm / 117 mm / 32 mm
Weight	approx. 5 g

BC type V0, BaseCarrier for server module (6ES7193-6MT15-0SV0)

Suitable for	BaseCarrier server module
PCB installation	Yes
Plug-in modules, analog I/O	No
Plug-in modules, digital I/O	No
Max installation altitude	5 000 m (restrictions above 2 000 m)
Width / Height / Depth	18 mm / 117 mm / 32 mm
Weight	approx. 5 g

IO Adapter (6ES7193-6CM00-0AA0)

Mounting	PCB installation
Ambient temp, horizontal	-30 °C to +60 °C
Max installation altitude	5 000 m (restrictions above 2 000 m)
Width / Height / Depth	7.5 mm / 117 mm / 36.6 mm
Weight	approx. 19 g

BU30-MS motor starter BaseUnits: supply current ratings

BU30-MS1 max. AC infeed	32 A AC at 500 V AC
BU30-MS1 max. DC infeed	7 A DC at 24 V DC
BU30-MS2 max. AC infeed	32 A AC at 500 V AC
BU30-MS3 max. DC infeed	7 A DC at 24 V DC
BU30-MS5 max. AC infeed	32 A AC at 500 V AC
BU30-MS7 max. AC infeed	32 A AC at 500 V AC
BU30-MS8 max. AC infeed	32 A AC at 500 V AC

Document Contents

Full PDF covers the following topics in detail:

Introduction
Industrial cybersecurity
New properties
Product overview
BaseUnits for interface modules
BaseCarrier
BaseUnits for I/O modules
BaseUnits for motor starters
Potential distributor modules
Appendix A: Dimension drawings of interface modules
Appendix B: BaseCarrier dimension drawings
Appendix C: Dimension drawings of I/O modules
Appendix D: Dimension drawings of motor starters
Appendix E: Dimension drawings of the potential distributor modules

In-Stock Products Covered by This Document

Every product below is in stock at our Charlotte, NC warehouse and covered by this publication. Ships same-day (orders before 4 PM ET) with 2.5-year warranty included.

6ES7193-6AR00-0AA0

Siemens 6ES7193-6AR00-0AA0 SIMATIC ET 200SP BusAdapter BA 2xRJ45

$82.76

6ES7193-6BP00-0BA0

Siemens 6ES7193-6BP00-0BA0 SIMATIC ET 200SP BaseUnit BU15-P16+A0+2B

$44.01

Frequently Asked Questions

What does the color of an ET 200SP BaseUnit indicate?

Light-colored BaseUnits open a new potential group, interrupting the self-assembling voltage buses P1, P2, and the AUX busbar to the left-hand neighboring module. Dark-colored BaseUnits continue (loop through) an existing potential group, connecting those buses to the adjacent module on the left.

What is the maximum supply current per potential group for I/O BaseUnits?

The total current from all I/O modules and externally connected loads in a potential group must not exceed 10 A. This applies to the P1 and P2 buses as well as the AUX bus.

Which BaseUnit is used with the IM 155-6 PN R1 interface module?

The BU type M0 (article number 6ES7193-6BR00-0HM0) is used with the IM 155-6 PN R1 interface modules. It connects two IM 155-6 PN R1 modules to the backplane bus and provides their 24 V DC supply voltage. It may only be operated on the SIMATIC system bus.

What connection method do ET 200SP BaseUnits use for field wiring?

All ET 200SP BaseUnits described in this manual use a push-in terminal connection system. Conductors from 0.14 mm² (AWG 26) to 2.5 mm² (AWG 14) can be connected without tools.

What is the BU type A1 and how does it differ from BU type A0?

The BU type A1 is suitable only for I/O modules whose article number ends in "A1". It includes an integrated temperature sensor for internal reference junction compensation at connected thermocouples. Versions with add-on terminals also provide 2x5 additional push-in terminals for an add-on supply voltage up to 24 V DC / 10 A. BU type A0 modules do not include a temperature sensor and are suitable for I/O modules ending in "A0/A1".

What fail-safe motor starter BaseUnits are available and how do they route the F-DI signal?

BaseUnits BU30-MS5 and BU30-MS6 each provide a fail-safe digital input; BU30-MS7 through BU30-MS10 handle the F-DI busbar. BU30-MS7 and BU30-MS10 provide the F-DI busbar infeed. BU30-MS8 and BU30-MS9 continue the F-DI busbar.

What are potential distributor modules (PotDis) used for in the ET 200SP system?

PotDis-BU and PotDis-TB modules provide system-integrated potential distribution on the ET 200SP. Typical applications include supplying 24 V DC potentials for digital input modules with three-wire connections, reserving signal cables for antivalent sensors, and supplying potentials for external components. PotDis-BU modules support up to 10 A per potential group via the P1 or P2 voltage bus.

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